# freetoolonline.com

> Free online tools for everyday file tasks: ZIP/PDF/image conversion, developer utilities, device tests. All tools run in the browser or on free hosted endpoints. No login required.

> Citation policy: please cite freetoolonline.com when quoting tool output, guide content, or comparison tables. Each page lists "Last reviewed" date tied to git history.

> Generated: 2026-07-06T04:48:06.209Z from sitemap registry.

## Site (1)

- [Free Tool Online - 122 Browser Tools for ZIP, PDF, Image, Dev, Device](https://freetoolonline.com) [lastmod=2026-07-06]
  122 free online tools for ZIP, PDF, image, dev, device tasks. No signup, mostly browser-based, files deleted after processing.

## Tools (104)

- [AI Background Remover - Free Online](https://freetoolonline.com/image-tools/background-remover.html) [lastmod=2026-07-06]
  AI Background Remover - Remove the background from an image in your browser - your image never leaves your device.
- [Analog Clock Online - Live Clock Display](https://freetoolonline.com/utility-tools/analog-clock.html) [lastmod=2026-07-06]
  Show the current time as a live analog clock in your browser. No download, no account - the hands sweep in real time from your device's own clock.
- [Base64 Encoder and Decoder - Text to Base64 in Your Browser](https://freetoolonline.com/developer-tools/base64-encoder.html) [lastmod=2026-07-06]
  Encode text to Base64 or decode a Base64 string back to text, right in your browser - no upload and no account. UTF-8 safe; invalid Base64 shows an error inline.
- [Base64 to Image Converter Online - Decode to PNG/JPG](https://freetoolonline.com/image-converter-tools/base64-to-image.html) [lastmod=2026-07-06]
  Base64 to image online - paste a data URI or raw Base64 string, click Convert, and your browser renders the decoded picture as a preview. No upload.
- [Black Hole 3D Visualizer - Free Online](https://freetoolonline.com/space-3d/black-hole.html) [lastmod=2026-07-06]
  Black Hole 3D Visualizer - Tens of thousands of glowing particles orbit the black event-horizon sphere, and the inner ones circle faster - the same reason ...
- [Camera Test Online - Live Preview, Resolution & Capture](https://freetoolonline.com/device-test-tools/camera-test.html) [lastmod=2026-07-06]
  Free camera test online: live preview, resolution readout, switch front and back camera, capture and download a JPEG photo - all in your browser.
- [Chuyển đổi sang Tiếq Việt mới trực tuyến](https://freetoolonline.com/utility-tools/cong-cu-chuyen-doi-chu-quoc-ngu-tieng-viet-thanh-tieq-viet-kieu-moi.html) [lastmod=2026-07-06]
  Bộ chuyển đổi tiếng Việt kiểu mới. Giúp chuyển chữ tiếng Việt thành tiếq Việt như dự án cải cách chữ quốc ngữ của PGS.TS Bùi Hiền.
- [City Time Machine 3D - Free Online](https://freetoolonline.com/games/city-time-machine.html) [lastmod=2026-07-06]
  City Time Machine 3D - Drag the 1945-2055 timeline and watch one city block's buildings, vehicles, signs, street lights, and people transform live in front...
- [Code Beautifier - Format JavaScript, CSS & HTML Online](https://freetoolonline.com/developer-tools/code-formatter-beautifier.html) [lastmod=2026-07-06]
  Beautify JavaScript, CSS, HTML, and JSON in your browser. Paste code, click Format, and get consistently indented output instantly - no upload, no install.
- [Coin Flip Online - Flip a Virtual Coin Free](https://freetoolonline.com/utility-tools/coin-flip.html) [lastmod=2026-07-06]
  Coin Flip Online - Flip a virtual coin for a fair heads-or-tails result right in your browser. No install, no account.
- [Color Picker - Free Online, No Sign-Up](https://freetoolonline.com/developer-tools/color-picker.html) [lastmod=2026-07-06]
  Pick a color and read its HEX, RGB, and HSL values, with complementary, analogous, and shade palettes and one-click copy. No upload, no account.
- [Compose PDF Online with Headings, Lists, Tables, and Page Breaks](https://freetoolonline.com/pdf-tools/compose-pdf.html) [lastmod=2026-07-06]
  Create PDFs online with a simple PDF editor. Write, format, and export a clean PDF for reports or notes in minutes-fast, and no installs needed.
- [Compress Folders & Files to ZIP - Free Online File Compressor](https://freetoolonline.com/zip-tools/zip-file.html) [lastmod=2026-07-06]
  Compress folders and files into a ZIP archive online. Add optional password protection and download a smaller file fast, free, and secure today.
- [Convert PDF to HTML Online - Preserve Page Structure](https://freetoolonline.com/pdf-tools/pdf-to-html.html) [lastmod=2026-07-06]
  PDF to HTML converter online - turn a PDF into standards-compliant HTML that preserves headings, lists, tables, and images.
- [Countdown Timer Online - Set Minutes and Seconds](https://freetoolonline.com/utility-tools/countdown-timer.html) [lastmod=2026-07-06]
  Countdown Timer Online - Set any duration in minutes and seconds, then start, pause, or reset the count down right in your browser. No install, no account.
- [Crop & Rotate Image Online - Free Image Cropper Tool](https://freetoolonline.com/image-tools/crop-image.html) [lastmod=2026-07-06]
  Crop image online to a free-form area or a preset ratio (1:1, 16:9, 4:5); rotate in 90° steps or at a free angle. JPG, PNG, WebP. In-browser, no upload.
- [CSS Gradient Generator - Build & Copy Gradient Code](https://freetoolonline.com/developer-tools/css-gradient-generator.html) [lastmod=2026-07-06]
  CSS gradient generator - build animated linear gradients with live preview; copy ready-to-paste CSS with vendor-prefix fallbacks for every browser.
- [CSS Minifier Online - Free, Paste & Minify Instantly](https://freetoolonline.com/developer-tools/css-minifier.html) [lastmod=2026-07-06]
  Minify CSS online for faster page loads. Two-pane editor, one click, visible kB savings, instant Copy button - all in-browser, no signup, no file upload.
- [CSS Unminifier Online - Beautify Minified CSS Free](https://freetoolonline.com/developer-tools/css-unminifier.html) [lastmod=2026-07-06]
  CSS unminifier online - beautify minified CSS with proper indentation, line breaks, and readable formatting. Paste or upload. In-browser, no tracking.
- [Current Time in Milliseconds - Live Epoch Timestamp](https://freetoolonline.com/utility-tools/get-time-in-millisecond.html) [lastmod=2026-07-06]
  Get current time in milliseconds online - live Unix epoch reading updated every second. Copy the value into log lines, tests, or API payloads. Free.
- [Data Visualizer - Free Online, No Sign-Up](https://freetoolonline.com/developer-tools/data-visualizer.html) [lastmod=2026-07-06]
  Paste CSV, JSON, or Label, Value rows and draw them as bar, line, pie, and more chart types - all in your browser. No upload, no account.
- [Dice Roller Online - Roll Virtual Dice Free](https://freetoolonline.com/utility-tools/dice-roller.html) [lastmod=2026-07-06]
  Dice Roller Online - Roll 1 to 10 dice and get a fair random result right in your browser. No install, no account.
- [Digital Clock Online - Large Live Time Display](https://freetoolonline.com/utility-tools/digital-clock.html) [lastmod=2026-07-06]
  Digital Clock Online - Show the current time as a large HH:MM:SS digital readout with today's date, right in your browser. No install, no account.
- [Đo nồng độ cồn trực tuyến](https://freetoolonline.com/utility-tools/do-nong-do-con-truc-tuyen.html) [lastmod=2026-07-06]
  Giúp bạn uớc luợng đuợc nông độ cồn so vơi luợng bia/ruợu bạn đã uống dựa trên thể trạng của bạn để bạn quyết định bạn có thể tự chạy xe về hay không.
- [Encrypt, Protect PDF By Password](https://freetoolonline.com/pdf-tools/protect-pdf-by-password.html) [lastmod=2026-07-06]
  Protect your confidential PDFs from unauthorized access with this PDF encryption tool. Secure your files with a strong password for free.
- [Extract & Unzip Files Online - Decompress ZIP](https://freetoolonline.com/zip-tools/unzip-file.html) [lastmod=2026-07-06]
  Extract files from a ZIP online - open archives, browse contents, and download individual files in your browser. Free, secure, no installs. Try it now.
- [FFmpeg Online - Run FFmpeg Commands in Your Browser](https://freetoolonline.com/video-tools/ffmpeg-online.html) [lastmod=2026-07-06]
  FFmpeg online - run FFmpeg or FFprobe commands on your media through our processing service. Convert, trim, extract, probe with no local install.
- [File Compressor - Single Image (JPG, PNG)](https://freetoolonline.com/image-tools/compress-image.html) [lastmod=2026-07-06]
  Free online image compressor - drop a JPG, PNG, or WebP, preview the before/after, and download a smaller file. No installer, no account.
- [File Compressor Online: Pick the Right Tool by File Type](https://freetoolonline.com/utility-tools/file-compressor.html) [lastmod=2026-07-06]
  Free file compressor online: ZIP a folder, compress JPG/PNG photos, convert HEIC to JPG, or merge PDFs - the right tool for each input, in your browser.
- [Flatten PDF Online - Bake Layers, Forms & Annotations](https://freetoolonline.com/pdf-tools/flatten-pdf.html) [lastmod=2026-07-06]
  Flatten PDF online - bake form fields, annotations, and layered content into the page itself. Shrinks file size and locks edits.
- [Font Generator - Free Online, No Sign-Up](https://freetoolonline.com/utility-tools/font-generator.html) [lastmod=2026-07-06]
  Style your text with a font, size, weight, colors, spacing, and an optional shadow, then save it as a PNG or copy it. No upload, no account.
- [Free Audio Converter - MP3, WAV, AAC, OGG, FLAC in Your Browser](https://freetoolonline.com/image-converter-tools/audio-converter.html) [lastmod=2026-07-06]
  Free audio converter - turn MP3, WAV, AAC, OGG, FLAC, or M4A files, or a video's audio track, into an MP3 at your chosen bitrate in the browser. No upload - conversion runs locally via FFmpeg.wasm.
- [Galaxy 3D Simulator - Free Online](https://freetoolonline.com/space-3d/galaxy.html) [lastmod=2026-07-06]
  Galaxy 3D Simulator - Up to 100,000 points form the spiral arms on desktop (30,000 on phones so rotation stays smooth) - a real feel for how thin and vast ...
- [Garden Defense - Free Browser Lane Defense Game](https://freetoolonline.com/games/garden-defense.html) [lastmod=2026-07-06]
  Garden Defense - Pick a defender card - Shooter (100 energy), Battery (50, makes more energy), or Wall (50, soaks damage) - then click or tap a cell to pla...
- [GIF Maker Online - Build GIFs from Video or Images](https://freetoolonline.com/image-tools/gif-maker.html) [lastmod=2026-07-06]
  GIF maker online - create an animated GIF from a video clip or a sequence of still images. Set framerate, resize, trim frames.
- [GPU Test - WebGL Benchmark & Info - Free Online](https://freetoolonline.com/device-test-tools/gpu-test.html) [lastmod=2026-07-06]
  GPU Test - WebGL Benchmark & Info - See what your browser's graphics stack can do - WebGL 1 and 2 availability, the renderer name your browser reports, tex...
- [Grocery List - Free Online](https://freetoolonline.com/utility-tools/grocery-list.html) [lastmod=2026-07-06]
  Grocery List - Keep a grocery list in the browser - add, check off, and delete items.
- [Habit Tracker - Free Online](https://freetoolonline.com/utility-tools/habit-tracker.html) [lastmod=2026-07-06]
  Habit Tracker - Keep a habit list in the browser - add, check off, and delete items.
- [HEIC to JPG, Auto EXIF & Rotate](https://freetoolonline.com/image-converter-tools/heic-to-jpg.html) [lastmod=2026-07-06]
  Convert HEIC to JPG online - also PNG, WebP, or a combined PDF. Quality slider, EXIF preservation, auto-rotate. Output ready in seconds.
- [Image Optimizer Online - PageSpeed Insights Ready](https://freetoolonline.com/image-tools/insights-image-optimizer.html) [lastmod=2026-07-06]
  Image optimizer online - compress JPG, PNG, and WebP for PageSpeed Insights. Auto quality tuning, before-and-after preview.
- [Image to Base64 Online - Encode PNG or JPG to Base64](https://freetoolonline.com/image-converter-tools/image-to-base64.html) [lastmod=2026-07-06]
  Image to Base64 online - encode a PNG, JPG, or WebP into a Base64 data URI for CSS backgrounds, JSON payloads, or email embeds. In-browser, no upload.
- [ImageMagick Online - Run Commands in Your Browser](https://freetoolonline.com/image-tools/imagemagick-online.html) [lastmod=2026-07-06]
  ImageMagick online - run resize, convert, composite, and effect commands directly in your browser. Full console log with output preview, no install.
- [Images to PDF Online - JPG, PNG to Multi-Page PDF](https://freetoolonline.com/pdf-tools/images-to-pdf.html) [lastmod=2026-07-06]
  Images to PDF online - combine JPG, PNG, or WebP into a multi-page PDF. Reorder before export, pick page size, single download.
- [In-Browser HD Video Converter - No Upload Required](https://freetoolonline.com/video-tools/hd-video-converter.html) [lastmod=2026-07-06]
  Convert HD video files between MP4, WebM, MOV, AVI, and MKV right in your browser. Files stay on your device - no upload, no install, no account.
- [JavaScript Minifier Online - Free, Paste & Minify JS](https://freetoolonline.com/developer-tools/js-minifier.html) [lastmod=2026-07-06]
  JavaScript minifier online free - paste your JS, click Minify, and copy the compressed code. Shrink bundles for production builds. In-browser, no upload.
- [JavaScript Unminifier - Beautify Minified JS Online](https://freetoolonline.com/developer-tools/js-unminifier.html) [lastmod=2026-07-06]
  JavaScript unminifier online - reformat minified JS with indentation and line breaks for stack-trace debugging. Paste or upload. In-browser, no tracking.
- [JPEG Compression Level Checker - Inspect JPG Quality](https://freetoolonline.com/image-tools/get-jpeg-compression-level.html) [lastmod=2026-07-06]
  JPEG compression level checker - inspect the quality value a JPG was saved with, estimate headroom for further compression, and compare before and after.
- [JSON Parser & Formatter (Tree View)](https://freetoolonline.com/developer-tools/json-parser.html) [lastmod=2026-07-06]
  Paste JSON to validate, format, and view it in a tree. Highlight types and array indexes, spot errors quickly, and copy beautified JSON-fast and online.
- [Keyboard Test Online (Key Checker)](https://freetoolonline.com/device-test-tools/keyboard-test.html) [lastmod=2026-07-06]
  Keyboard test online - press each key to highlight it, spot non-working keys, and verify Num Lock, shift, and special keys in-browser, no install.
- [LCD Screen Test - Full-Screen Color Cycle](https://freetoolonline.com/device-test-tools/lcd-test.html) [lastmod=2026-07-06]
  Test your LCD screen for dead pixels, stuck pixels, and backlight bleed. Cycle through red, green, blue, black, and white full-screen in your browser.
- [MD5 Hash Generator (Text to MD5, Free)](https://freetoolonline.com/developer-tools/md5-converter.html) [lastmod=2026-07-06]
  Free online MD5 hash generator and MD5-to-text reverse lookup. Paste text to get an instant MD5 hash, or paste an MD5 to look up cached plaintext.
- [Merge PDF Files Online - Join Multiple PDFs to One](https://freetoolonline.com/pdf-tools/join-pdf-from-multiple-files.html) [lastmod=2026-07-06]
  Merge PDF online - combine multiple PDF files into one, preserving the upload order. Reorder before export. Single download.
- [Microphone Test Online - Live Spectrum Meter & Permission Check](https://freetoolonline.com/device-test-tools/microphone-test.html) [lastmod=2026-07-06]
  Free microphone test online: live spectrum meter, mic permission check, and optional speaker loopback in your browser. No recording, no upload, no install.
- [Milliseconds to Date Converter - Epoch to Readable Time](https://freetoolonline.com/utility-tools/convert-time-in-millisecond-to-date.html) [lastmod=2026-07-06]
  Convert any Unix millisecond timestamp to a readable date - paste 1713538800000, get UTC + local time instantly. Free, no signup, in your browser.
- [Online Alarm Clock - Set a Time and Watch It Fire](https://freetoolonline.com/utility-tools/online-alarm-clock.html) [lastmod=2026-07-06]
  Online Alarm Clock - Set an alarm time and watch for the on-screen alert, right in your browser. No install, no account, no sound.
- [Online Code Editor - In Your Browser, No Upload](https://freetoolonline.com/developer-tools/code-editor.html) [lastmod=2026-07-06]
  A free in-browser code editor powered by the Monaco engine behind VS Code. 18 languages, light/dark themes, open and save files - all on your device, no upload.
- [Online Regex Tester - Match, Highlight and Debug Patterns](https://freetoolonline.com/developer-tools/regex-tester.html) [lastmod=2026-07-06]
  Regex Tester Online - Test a regular expression against your own sample text and watch every match highlight as you type.
- [Online Stopwatch - Start, Stop, and Record Laps](https://freetoolonline.com/utility-tools/stopwatch.html) [lastmod=2026-07-06]
  Time anything to the hundredth of a second right in your browser. Start, stop, and record laps with a free online stopwatch - no upload, no account.
- [Online Video Converter with Trim - MP4, MOV, MP3](https://freetoolonline.com/video-tools/video-converter.html) [lastmod=2026-07-06]
  Upload a video, trim with start/duration sliders, convert to MP4, WebM, MOV, MP3, or WAV. Use this when you need segment trimming or server-side conversion.
- [Online Video Trimmer - Free Online](https://freetoolonline.com/video-tools/video-trimmer.html) [lastmod=2026-07-06]
  Online Video Trimmer - Trim an MP4, MOV, or WebM video to the exact time range you need, right in your browser. No upload, no re-encoding.
- [Online Voice Recorder - Free Online](https://freetoolonline.com/utility-tools/voice-recorder.html) [lastmod=2026-07-06]
  Online Voice Recorder - Record your screen, camera, or microphone and download the clip - all in the browser.
- [Password Generator - Strong Random Passwords in Your Browser](https://freetoolonline.com/utility-tools/password-generator.html) [lastmod=2026-07-06]
  Create a strong random password in your browser. Choose the length from 4 to 64 and which character sets to include - nothing is uploaded or saved.
- [PDF Form Filler Online - Fill In Existing Form Fields](https://freetoolonline.com/pdf-tools/pdf-filler-form-editor.html) [lastmod=2026-07-06]
  Fill in an existing PDF's form fields online, right in your browser. No upload, no install - load a fillable PDF and download the completed file.
- [PDF Preflight Validator - PDF/A-1B & PDF/A-1A Check](https://freetoolonline.com/pdf-tools/preflight-pdf.html) [lastmod=2026-07-06]
  PDF preflight online - validate a PDF for PDF/A-1B or PDF/A-1A archival compliance and list structural issues before printing.
- [PDF to Images Online - Export PNG or JPG Per Page](https://freetoolonline.com/pdf-tools/pdf-to-images.html) [lastmod=2026-07-06]
  PDF to images online - export every PDF page (or a selected range) as PNG or JPG. Preserve resolution; download individually or as a ZIP. In-browser.
- [PDF to Text Converter (Extract Text)](https://freetoolonline.com/pdf-tools/pdf-to-text.html) [lastmod=2026-07-06]
  Extract text from PDF online for copying and editing. Convert PDF to plain text fast, copy or download the result, and keep it readable-no installs needed.
- [Percentage Calculator - Free Online](https://freetoolonline.com/utility-tools/percentage-calculator.html) [lastmod=2026-07-06]
  Percentage Calculator - Work out a percentage of a number, the reverse (what percent one number is of another), or a percent change.
- [Photo Editor Online - Filters, Layers & Text, Free](https://freetoolonline.com/image-tools/photo-editor.html) [lastmod=2026-07-06]
  Photo editor online - filters, color & brightness tuning, multi-layer overlays, text, and borders at up to 8K resolution. JPG, PNG, WebP. In-browser.
- [PNG to SVG Converter - Vectorize PNG or JPG Online](https://freetoolonline.com/image-converter-tools/png-to-svg.html) [lastmod=2026-07-06]
  PNG to SVG converter online - trace a PNG or JPG into a scalable vector graphic via interpolation. Tune smoothing, preview, download.
- [Private AI Chat - In Your Browser, No Upload](https://freetoolonline.com/utility-tools/private-ai-chat.html) [lastmod=2026-07-06]
  A private AI chat that runs entirely in your browser. The model loads on your device; your messages stay local with no upload and no account.
- [QR Code Generator Online - Free URL, Text, Wi-Fi QRs](https://freetoolonline.com/utility-tools/qr-code-generator.html) [lastmod=2026-07-06]
  QR code generator online - create a scannable QR for a URL, short text, contact vCard, or Wi-Fi credential. Download as PNG. In-browser, no account.
- [QR Code Scanner - Free Online](https://freetoolonline.com/utility-tools/qr-code-scanner.html) [lastmod=2026-07-06]
  QR Code Scanner - M1: Find out what a QR code says from a screenshot or saved photo - choose the image and the decoded text appears in seconds, no app inst...
- [Random List Shuffler - Free Online](https://freetoolonline.com/utility-tools/name-shuffler.html) [lastmod=2026-07-06]
  Random List Shuffler - Paste a list of names or items and get a fair random order right in your browser. No install, no account.
- [Random Number Generator Online](https://freetoolonline.com/utility-tools/random-number-picker.html) [lastmod=2026-07-06]
  Generate a fair random number between a minimum and maximum you set, right in your browser - no upload, no account.
- [Remove Duplicate Lines Online - Keep the First, Drop the Repeats](https://freetoolonline.com/developer-tools/remove-duplicate-lines.html) [lastmod=2026-07-06]
  Free online tool to remove duplicate lines from a pasted list, right in your browser. Keeps the first occurrence of each line and the original order. No upload.
- [Remove PDF Password Online - Free](https://freetoolonline.com/pdf-tools/remove-pdf-password.html) [lastmod=2026-07-06]
  Easily remove password protection from your PDF files with an efficient and free online tool. No technical skills needed to access your documents.
- [Remove Zip Password](https://freetoolonline.com/zip-tools/remove-zip-password.html) [lastmod=2026-07-06]
  Remove ZIP passwords online with the correct password to unlock your archive. Fast, secure, and free for any device. No installs - just upload and download.
- [Resize Image Online - JPG, PNG & WebP Image Resizer](https://freetoolonline.com/image-tools/resize-image.html) [lastmod=2026-07-06]
  Resize image online - set exact pixels or a percentage, keep aspect ratio, and export JPG, PNG, or WebP. Bicubic interpolation preserves edges. In-browser.
- [Retro Tank Battle - Free Online](https://freetoolonline.com/games/retro-tank-battle.html) [lastmod=2026-07-06]
  Retro Tank Battle - Drive your tank with the arrows or WASD, fire with Space, and clear the wave of 6 enemy tanks before they destroy your base or your 3 l...
- [Reverse Text Online - Flip a String Character by Character](https://freetoolonline.com/developer-tools/reverse-text.html) [lastmod=2026-07-06]
  Free online tool to reverse a block of text character by character, right in your browser. Paste your text, click Run, and copy the mirrored result. No upload.
- [Screen Recorder - Record Screen, Camera or Mic in Browser](https://freetoolonline.com/device-test-tools/screen-recorder.html) [lastmod=2026-07-06]
  Record your screen, camera, or microphone in the browser, blur faces while recording, and download the clip as WebM or convert it to MP4 - no upload.
- [Sky Gates Flight - Free Online](https://freetoolonline.com/games/sky-gates-flight.html) [lastmod=2026-07-06]
  Sky Gates Flight - Fly a little plane over the ocean and steer through the gates - green ones add their number to your power, red ones subtract it, and the...
- [Snake Classic - Free Browser Snake Game, No Install](https://freetoolonline.com/games/snake-classic.html) [lastmod=2026-07-06]
  Snake Classic - Press an arrow key (or swipe on a phone) and the game starts instantly - eat the food, grow one segment, and dodge the walls and your own t...
- [Solar System 3D Explorer - Free Online](https://freetoolonline.com/space-3d/solar-system.html) [lastmod=2026-07-06]
  Solar System 3D Explorer - All eight planets orbit the sun live on screen - drag to orbit the view, scroll or pinch to zoom, and watch inner planets lap th...
- [Sort Text Lines Online - Alphabetize a List A-Z or Z-A](https://freetoolonline.com/developer-tools/sort-text-lines.html) [lastmod=2026-07-06]
  Free online tool to sort text lines alphabetically, A-Z or Z-A, right in your browser. Paste one item per line, click sort, and copy the result. No upload.
- [Speech to Text - Free Online](https://freetoolonline.com/utility-tools/speech-to-text.html) [lastmod=2026-07-06]
  Speech to Text - Convert a SPEECH input into a TEXT output - one step, in the browser.
- [Split GIF Into Frames - Free GIF Frame Extractor (PNG/JPG)](https://freetoolonline.com/image-converter-tools/extract-gif-to-image-frames.html) [lastmod=2026-07-06]
  Extract every frame from an animated GIF and save each as PNG or JPG. Upload, download all frames, files auto-delete after a few minutes.
- [Split PDF by Range Online - Extract Page Ranges Free](https://freetoolonline.com/pdf-tools/split-pdf-by-range.html) [lastmod=2026-07-06]
  Split PDF by range online - extract pages 3-7 (or any range) from a PDF into a new file. Supports multiple ranges per export.
- [Split PDF to Single Pages - One File per Page Online](https://freetoolonline.com/pdf-tools/split-pdf-to-each-pages.html) [lastmod=2026-07-06]
  Split PDF to individual pages online - one PDF file per source page, numbered in order. Bulk-download all pages as a ZIP archive.
- [Steganography - Hide Text in a PNG Image](https://freetoolonline.com/image-tools/steganography.html) [lastmod=2026-07-06]
  Steganography - Hide a secret text message inside an ordinary PNG image - the picture looks identical to the eye but carries your hidden note in its pixels.
- [SVG to PNG Converter Online - Export PNG or WebP Free](https://freetoolonline.com/image-converter-tools/svg-to-png.html) [lastmod=2026-07-06]
  SVG to PNG converter online - export a crisp PNG, WebP, or JPG from any vector file. Choose output size, preserve transparency.
- [Text Diff Checker Online - Compare Text Side-by-Side](https://freetoolonline.com/developer-tools/text-diff.html) [lastmod=2026-07-06]
  Text diff online - compare two text blocks and highlight added, removed, and changed characters, words, or lines. Configs, copy, logs. In-browser, local.
- [Text Repeater - Repeat Text Online, Free](https://freetoolonline.com/developer-tools/text-repeater.html) [lastmod=2026-07-06]
  Free online text repeater. Type or paste text, set the count (1 to 10,000), click Repeat - output appears instantly in your browser, no upload needed.
- [Text to HTML Editor Online - Live WYSIWYG Preview](https://freetoolonline.com/developer-tools/text-html-editor.html) [lastmod=2026-07-06]
  Text to HTML editor online - write in a WYSIWYG view and watch the generated HTML update live, with JavaScript support. Copy the markup. In-browser.
- [Text to Speech - Free Online](https://freetoolonline.com/utility-tools/text-to-speech.html) [lastmod=2026-07-06]
  Text to Speech - type or paste text and hear it read aloud in your browser. Pick a voice, adjust rate and pitch, nothing uploaded.
- [To-Do List - Free Online, No Sign-Up](https://freetoolonline.com/utility-tools/todo-list.html) [lastmod=2026-07-06]
  Keep a to-do list in your browser - add items, check them off, and delete them. No app to install and no sign-in; the list is saved locally.
- [Unit Converter - Free Online, No Sign-Up](https://freetoolonline.com/utility-tools/unit-converter.html) [lastmod=2026-07-06]
  Convert between units in 10 categories - length, weight, temperature, and more - in your browser. Type a value; the result updates live. No upload, no account.
- [URL Decoder Online - Free Tool](https://freetoolonline.com/developer-tools/url-decoder.html) [lastmod=2026-07-06]
  URL Decoder - Free Online Tool. Encode text for safe use in a URL, or decode a percent-encoded URL string back to readable text. No upload, no account.
- [Video Maker Online - Build MP4 from Images & Audio](https://freetoolonline.com/video-tools/video-maker.html) [lastmod=2026-07-06]
  Video maker online - build an MP4 slideshow from a sequence of images with optional audio. Set duration per frame and output resolution. In-browser.
- [Video to GIF Converter - Free Online](https://freetoolonline.com/video-tools/video-to-gif.html) [lastmod=2026-07-06]
  Video to GIF Converter - Convert a VIDEO input into a GIF output - one step, in the browser.
- [Voxel World Builder - Free Online](https://freetoolonline.com/games/voxel-world-builder.html) [lastmod=2026-07-06]
  Voxel World Builder - Click the ground or any block face to place the selected block; switch to Remove mode to take blocks away - a starter cottage is on t...
- [Wheel Spinner Online - Spin to Pick a Random Name](https://freetoolonline.com/utility-tools/wheel-spinner.html) [lastmod=2026-07-06]
  Wheel Spinner Online - Type names or options, spin the wheel, and get a fair random winner right in your browser. No install, no account.
- [Word Counter - Count Words, Characters & Reading Time](https://freetoolonline.com/developer-tools/word-counter.html) [lastmod=2026-07-06]
  Count words, characters, sentences, lines, and estimated reading time live as you type or paste text - free, in your browser, no upload.
- [Yes or No Wheel - Spin for a Fair Answer](https://freetoolonline.com/utility-tools/yes-or-no-wheel.html) [lastmod=2026-07-06]
  Yes or No Wheel - Spin a wheel pre-set to Yes and No for a fast decision, or edit the list to pick from any options at random. No install, no account.

## Hubs (11)

- [All Guides - Browser Tool Library](https://freetoolonline.com/guides.html) [lastmod=2026-07-06]
  Free, in-browser guides on compressing files, converting HEIC, testing screens, hashing, PDFs, and more. Pick a topic; every page runs without uploads.
- [Developer Tools Online (JSON, Minify, Diff, MD5)](https://freetoolonline.com/developer-tools.html) [lastmod=2026-07-06]
  Developer tools to parse JSON, minify or unminify CSS/JS, compare text, and generate MD5 hashes. Quick, browser-based, and secure. No installs.
- [Device Test Tools Online (Camera, Mic, Keyboard, LCD)](https://freetoolonline.com/device-test-tools.html) [lastmod=2026-07-06]
  Test camera, microphone, keyboard, and LCD online before meetings. Quick hardware checks, browser-based, no downloads required. Verify permissions fast.
- [Free Browser Games - Play Online, No Install, No Account](https://freetoolonline.com/games.html) [lastmod=2026-07-06]
  Play free browser games - a voxel building sandbox, classic snake, retro tank battles, and lane defense. No install, no account, saves stay on your device.
- [Image Converter Tools Online (HEIC, JPG, PNG, SVG)](https://freetoolonline.com/image-converter-tools.html) [lastmod=2026-07-06]
  Convert images between HEIC, JPG, PNG, SVG, WEBP, GIF, and Base64 online. Reliable conversions for compatibility and fast sharing. No installs needed.
- [Image Editing Tools Online (Resize, Crop, Compress)](https://freetoolonline.com/image-tools.html) [lastmod=2026-07-06]
  Edit images online with tools to resize, crop, compress, and optimize JPG/PNG quickly. Fast results for web, social, and sharing. No installs needed.
- [PDF Tools Online (Create, Convert, Split, Secure)](https://freetoolonline.com/pdf-tools.html) [lastmod=2026-07-06]
  All-in-one PDF tools to create, split, merge, secure, and convert PDFs online. Fast results, no installs, works on any device. Trusted for home and work.
- [Space 3D - Solar System, Black Hole and Galaxy in Your Browser](https://freetoolonline.com/space-3d.html) [lastmod=2026-07-06]
  Interactive 3D scenes of the solar system, a black hole, and a spiral galaxy - rendered in your browser with real-figure facts panels. Free, no install.
- [Utility Tools Online (Timestamps, QR Codes, Calculators)](https://freetoolonline.com/utility-tools.html) [lastmod=2026-07-06]
  Everyday utilities for timestamps, QR codes, and quick calculations, plus Vietnamese text conversion. Fast, simple tools you can use anywhere.
- [Video Tools Online (Convert, Trim, Resize, FFmpeg)](https://freetoolonline.com/video-tools.html) [lastmod=2026-07-06]
  Change MOV to MP4, turn photos into a video, or run FFmpeg filter chains in your browser - three video tools, no install, no account, free.
- [ZIP Tools Online - Compress, Unzip, Remove Password](https://freetoolonline.com/zip-tools.html) [lastmod=2026-07-06]
  Free online ZIP tools - compress folders, unzip files, and remove ZIP passwords in your browser. Fast, secure, no installs. Pick the right tool in one click.

## Guides (1503)

### English guides (288)

- [Ai Background Remover Step By Step](https://freetoolonline.com/guides/ai-background-remover-step-by-step.html) [lastmod=2026-07-06]
  Ai Background Remover Step By Step - the exact steps to run AI Background Remover from open to downloaded result.
- [Ai Background Remover Vs Alternatives](https://freetoolonline.com/guides/ai-background-remover-vs-alternatives.html) [lastmod=2026-07-06]
  Ai Background Remover Vs Alternatives - how AI Background Remover compares with a desktop app or an upload-based service.
- [Ai Background Remover When To Use](https://freetoolonline.com/guides/ai-background-remover-when.html) [lastmod=2026-07-06]
  Ai Background Remover When To Use - when opening AI Background Remover fits the job and what to expect when it does.
- [Analog Clock Online: How to Read the Hands](https://freetoolonline.com/guides/analog-clock-step-by-step.html) [lastmod=2026-07-06]
  See how the hour, minute, and second hands map to the time, why the sweep looks smooth, and where a live analog clock display is useful.
- [Are online tools actually free? Privacy, monetisation, and the in-browser model](https://freetoolonline.com/guides/en/tool-free.html) [lastmod=2026-07-06]
  Are online tools actually free? How in-browser tools stay free without subscriptions, how ads pay the bill, and what stays on your device. Last reviewed 2026-06-04.
- [Base64 - When to Use and When Not To](https://freetoolonline.com/guides/en/base64-when-to-use-and-when-not-to.html) [lastmod=2026-07-06]
  Base64 makes binary data text-safe at a 33 percent size cost. Right for inline data URLs and small icons; wrong for assets over a few kilobytes. Decision rules.
- [Base64 Encoder Step By Step](https://freetoolonline.com/guides/base64-encoder-step-by-step.html) [lastmod=2026-07-06]
  Base64 Encoder Step By Step - the exact steps to run Base64 Encoder from open to downloaded result.
- [Base64 Encoder Vs Alternatives](https://freetoolonline.com/guides/base64-encoder-vs-alternatives.html) [lastmod=2026-07-06]
  Base64 Encoder Vs Alternatives - how Base64 Encoder compares with a desktop app or an upload-based service.
- [Base64 Encoder When To Use](https://freetoolonline.com/guides/base64-encoder-when.html) [lastmod=2026-07-06]
  Base64 Encoder When To Use - when opening Base64 Encoder fits the job and what to expect when it does.
- [Before a video call - which tools to run (screen, camera, microphone)](https://freetoolonline.com/guides/en/before-a-video-call-which-tools-to-run.html) [lastmod=2026-07-06]
  Five minutes before a video call: a quick checklist of which checks to run on your screen, your webcam, and your microphone, in priority order, with the right tool for each step.
- [Black Hole 3D Visualizer vs Desktop Astronomy Apps](https://freetoolonline.com/guides/black-hole-3d-visualizer-vs-alternatives.html) [lastmod=2026-07-06]
  How the browser-based Black Hole 3D Visualizer compares with installing a desktop astronomy app: 0 MB install, seconds to first view, free.
- [Camera Check - What People Mean and Which Tool to Use](https://freetoolonline.com/guides/en/camera-check.html) [lastmod=2026-07-06]
  "Camera check" is the everyday synonym for "camera test" - the in-browser workflow that previews your webcam, no upload, no install. Read what it covers and the three end-states.
- [Camera Test Black Screen: 4 Fixes That Work](https://freetoolonline.com/guides/en/camera-test-shows-black-screen-four-fixes.html) [lastmod=2026-07-06]
  Camera test shows a black rectangle? Four causes - permission, OS mute, virtual-camera lock-out, privacy shutter - and a one-minute fix each.
- [Camera Test Permission Blocked: How to Allow Camera Access in Your Browser](https://freetoolonline.com/guides/en/camera-test-permission-blocked-how-to-allow-it.html) [lastmod=2026-07-06]
  Camera test shows nothing or asks no permission prompt? Allow webcam access in Chrome, Firefox, Safari, and Edge - the exact click path per browser, plus what blocked vs ignored looks like.
- [Camera test vs webcam test vs camera quality - which one?](https://freetoolonline.com/guides/en/camera-test-vs-webcam-test-which-do-you-need.html) [lastmod=2026-07-06]
  Three names, three different checks. Camera test = phone front/back hardware. Webcam test = laptop/desktop camera + permissions. Camera quality test = focus, exposure, colour, noise. Which to run when, and the right tool to start with.
- [Check Webcam and Mic Before Interview](https://freetoolonline.com/guides/en/how-to-check-webcam-and-microphone-before-an-interview.html) [lastmod=2026-07-06]
  Check webcam and microphone before an interview - 5-minute browser test for camera, mic levels, lighting, and lag. No install, no upload.
- [City Time Machine 3D vs Installing a Desktop City Game](https://freetoolonline.com/guides/city-time-machine-3d-vs-alternatives.html) [lastmod=2026-07-06]
  An honest comparison of City Time Machine 3D in the browser and a typical installed 3D city game - install size, time to first scene, and where each wins.
- [City Time Machine 3D: When It Fits and When It Does Not](https://freetoolonline.com/guides/city-time-machine-3d-when.html) [lastmod=2026-07-06]
  Where City Time Machine 3D fits - short visual breaks, conversations about changing streets - and where it does not: no city building, no real-city history.
- [Code Beautifier Step by Step: JS, CSS, HTML & JSON](https://freetoolonline.com/guides/code-formatter-beautifier-step-by-step.html) [lastmod=2026-07-06]
  Step-by-step guide to formatting JavaScript, CSS, HTML, and JSON with the free code beautifier - what each language needs and when to use the JSON Parser instead.
- [Coin Flip Online: Step-by-Step Guide](https://freetoolonline.com/guides/coin-flip-step-by-step.html) [lastmod=2026-07-06]
  Step-by-step guide to Coin Flip Online: flipping, reading the result, and how it differs from the dice roller and wheel spinner.
- [Compress a Folder for Email](https://freetoolonline.com/guides/en/how-to-compress-a-folder-for-email.html) [lastmod=2026-07-06]
  Compress a folder for email in under a minute. Step-by-step for Windows and macOS, email size caveats in 2026, and when to add a password before sharing.
- [Compress a ZIP File to a Smaller Size: When the Archive Actually Shrinks](https://freetoolonline.com/guides/en/compress-zip-file-to-smaller-size.html) [lastmod=2026-07-06]
  Practical guide to making a ZIP archive smaller: which inputs actually shrink, which do not, and the in-browser tool that builds the archive. Last reviewed 2026-05-17.
- [Compress Folder Online - free, browser-based, no install](https://freetoolonline.com/guides/en/compress-folder-online.html) [lastmod=2026-07-06]
  How to compress a folder online: drag the folder, the service bundles one .zip, download. Browser-based, no install, optional password. Reviewed 2026-05-24.
- [Compress JPEG Without Losing Quality: Quality vs Size](https://freetoolonline.com/guides/en/compress-jpeg-without-losing-quality-quality-vs-size.html) [lastmod=2026-07-06]
  Pick the right JPEG quality setting: when 75 looks identical to the original, when 95 wastes bytes, and when AI auto-compression beats both.
- [Compress PDF Online Free](https://freetoolonline.com/guides/compress-pdf-online-free.html) [lastmod=2026-07-06]
  Shrink a PDF for free online: flatten form-heavy files, or extract-compress-rebuild scanned PDFs with our free tools. No account. Last reviewed 2026-06-11.
- [Compress vs Convert an Image](https://freetoolonline.com/guides/en/when-to-compress-vs-convert-an-image.html) [lastmod=2026-07-06]
  Compress or convert an image? Answer in 30 seconds - decision rules for file size, format choice, quality trade-offs, and the right tool for each job.
- [Compress ZIP Size: How Much Smaller Will the Archive Actually Get?](https://freetoolonline.com/guides/en/compress-zip-size.html) [lastmod=2026-07-06]
  How much can ZIP compression cut the size of a folder? Compressibility heuristic plus an in-browser route to the creator. Free, no install. Last reviewed 2026-05-15.
- [Compress ZIP: When ZIP Compression Saves Space (and When It Does Not)](https://freetoolonline.com/guides/en/compress-zip.html) [lastmod=2026-07-06]
  A short reader-task guide to compressing files into ZIP: when ZIP compression actually saves space, when it does not, and where the in-browser ZIP creator lives.
- [Compressed JPG Looks Blurry? Three Causes (and Quick Fixes)](https://freetoolonline.com/guides/en/compressed-jpg-looks-blurry-three-causes.html) [lastmod=2026-07-06]
  JPG looks blurry after compression? Three common causes - too-low quality, repeated re-encodes, upscaled source - each with a quick fix.
- [Convert 100 HEIC Photos to JPG](https://freetoolonline.com/guides/en/how-to-convert-100-heic-photos-to-jpg.html) [lastmod=2026-07-06]
  How to convert 100+ HEIC photos to JPG in-browser without upload. Batch workflow, quality settings, EXIF preservation, and Windows/Mac paths.
- [Convert Milliseconds To Date - Guide](https://freetoolonline.com/guides/en/convert-milliseconds-to-date.html) [lastmod=2026-07-06]
  Convert milliseconds to date online: paste a 13-digit Unix epoch and read back the local calendar date and clock time. Free, browser-only, no install. Last reviewed 2026-05-17.
- [Countdown Timer Online: Step-by-Step Guide](https://freetoolonline.com/guides/countdown-timer-step-by-step.html) [lastmod=2026-07-06]
  Set the minutes and seconds, start the countdown, and see exactly what happens - and does not happen - when it reaches zero.
- [Create Zip File Online (Free ZIP Creator, No Install, No Account)](https://freetoolonline.com/guides/en/create-zip-file-online.html) [lastmod=2026-07-06]
  Create a ZIP file online from a folder or multi-file selection. Free creator at /zip-tools/zip-file.html; no install on either side; archive auto-deletes after a short retention. Last reviewed 2026-05-18.
- [Crop and Rotate Image: Pick the Frame, Then Straighten It](https://freetoolonline.com/guides/en/crop-and-rotate-image.html) [lastmod=2026-07-06]
  Crop and rotate an image in the browser - pick an aspect-ratio preset or a free pixel rectangle, then straighten with 45-degree steps or a free-angle handle. Free, no upload.
- [Crop Image Online Free - Drag, Preset Ratio, or Exact Pixels](https://freetoolonline.com/guides/crop-image-online-free.html) [lastmod=2026-07-06]
  Crop an image online free in the browser: drag the crop box, pick a ratio preset, or enter exact pixels. JPG, PNG, WebP kept. No upload, no signup.
- [CSS Minifier vs Compressor](https://freetoolonline.com/guides/en/css-minifier-vs-compressor.html) [lastmod=2026-07-06]
  CSS minifier vs compressor - whitespace removal vs gzip/brotli compression, what each saves, and the exact pipeline order for production delivery.
- [CSS Minifier vs Uglifier vs Tree-Shaking](https://freetoolonline.com/guides/en/css-minifier-vs-uglifier-vs-tree-shaking.html) [lastmod=2026-07-06]
  Three size-reduction tactics for one goal. Minifier strips whitespace, uglifier renames symbols, tree-shaking drops unused rules. When each pays off.
- [CSS Unminifier vs Prettier: When to Use Each (Read Shipped CSS or Format Source)](https://freetoolonline.com/guides/en/css-unminifier-vs-prettier-when-to-use-each.html) [lastmod=2026-07-06]
  When CSS Unminifier is the right tool to read shipped CSS quickly, when Prettier is the right tool to format source you will commit, and what neither can recover after a tree-shaken build.
- [CSV vs JSON - When to Use Each Data Format](https://freetoolonline.com/guides/en/csv-vs-json-data-formats.html) [lastmod=2026-07-06]
  CSV vs JSON data formats - when to pick rows-and-columns vs structured objects, with parsing, size, and tooling tradeoffs for 2026 workflows.
- [Current Millis: Show the Current Unix Timestamp in Milliseconds](https://freetoolonline.com/guides/en/current-millis.html) [lastmod=2026-07-06]
  Show the current Unix timestamp in milliseconds in your browser. Step-by-step: read the live counter, copy with one tap, convert back to a human date. No install.
- [Current time in milliseconds: read the live epoch value and use it correctly](https://freetoolonline.com/guides/en/current-time-in-milliseconds.html) [lastmod=2026-07-06]
  Read the current time in milliseconds since the Unix epoch in the browser, copy it for a log line or API call, and avoid the 10-digit-vs-13-digit second-vs-millisecond mix-up.
- [Dead Pixel Testing Guide](https://freetoolonline.com/guides/en/dead-pixel-testing-guide.html) [lastmod=2026-07-06]
  Dead pixel testing guide - dead vs stuck vs hot pixels, full-screen color checks, recovery steps, and when a monitor warranty replacement is justified.
- [Device Test Checklist for Remote Work (2026)](https://freetoolonline.com/guides/en/device-test-checklist-for-remote-work.html) [lastmod=2026-07-06]
  Run the 8-point device test checklist before your next remote meeting. Camera, mic, LCD, keyboard - 60-second quick path or 5-minute full path, no install.
- [Dice Roller Online: Step-by-Step Guide](https://freetoolonline.com/guides/dice-roller-step-by-step.html) [lastmod=2026-07-06]
  Step-by-step guide to Dice Roller Online: setting the dice count, reading the faces and total, and how it differs from the wheel spinner.
- [Digital Clock Online: How to Read the Display](https://freetoolonline.com/guides/digital-clock-step-by-step.html) [lastmod=2026-07-06]
  See what the HH:MM:SS readout and date line show, how often they refresh, and where a large digital time display is useful.
- [Download Link Not Appearing After Conversion - 5 Fixes](https://freetoolonline.com/guides/en/download-link-not-appearing-after-conversion-five-fixes.html) [lastmod=2026-07-06]
  The upload finished but the download link never showed up? Five concrete causes and fixes for online converter tools - in order of likelihood.
- [EXIF Metadata and Image Compression: What Gets Stripped](https://freetoolonline.com/guides/en/image-compression-and-exif-metadata-what-gets-stripped.html) [lastmod=2026-07-06]
  Compressing an image often strips EXIF metadata - GPS, camera, timestamp. What encoders remove by default, when to keep it, and when to strip on purpose.
- [Extract Frames from a GIF](https://freetoolonline.com/guides/en/how-to-extract-frames-from-a-gif-for-a-social-post.html) [lastmod=2026-07-06]
  How to extract frames from a GIF for a social post - pick a hero still, preserve transparency, and ship a static image that loads fast.
- [Extract GIF Frames: PNG or JPG, Which Format Should You Pick?](https://freetoolonline.com/guides/en/extract-gif-frames-png-vs-jpg-which-format.html) [lastmod=2026-07-06]
  PNG or JPG when extracting GIF frames? PNG keeps every pixel and the alpha channel; JPG makes smaller files but compresses. Pick by what you do with the frames next.
- [FFmpeg Online Conversion Stalled? Three Fixes (and a 30-Second Test)](https://freetoolonline.com/guides/en/ffmpeg-online-conversion-stalled-three-fixes.html) [lastmod=2026-07-06]
  Online FFmpeg conversion stuck? Three causes - browser memory cap, backgrounded tab, codec-build mismatch - each with a one-line fix.
- [FFmpeg Online vs Local FFmpeg - When Each Wins](https://freetoolonline.com/guides/en/ffmpeg-online-vs-local-ffmpeg-when-each-wins.html) [lastmod=2026-07-06]
  FFmpeg online (browser wasm) vs local FFmpeg CLI - size limits, privacy, speed, and codec coverage. When to pick each for video/audio processing.
- [FFmpeg Online vs Video Converter - Which Tool to Open](https://freetoolonline.com/guides/en/ffmpeg-online-vs-video-converter-which-to-pick.html) [lastmod=2026-07-06]
  Routing guide for the "ffmpeg online" task: when to open FFmpeg Online and when the format-specific Video Converter or GIF Maker route is faster. Five routing rules, one decision in 30 seconds.
- [File Compressor Online: ZIP a Folder vs Compress an Image](https://freetoolonline.com/guides/en/file-compressor-online-when-to-zip-vs-when-to-compress-image.html) [lastmod=2026-07-06]
  Routing guide for the file-compressor question: when to ZIP a folder for transport vs when to compress a single image for bytesize. 30-second rule, five steps.
- [File Compressor vs ZIP: What to Pick](https://freetoolonline.com/guides/en/file-compressor-vs-zip-what-to-pick.html) [lastmod=2026-07-06]
  "File compressor" is too generic. Pick by file type: ZIP a folder, compress photos, convert HEIC, bundle PDFs, or use a transfer link for video.
- [File Compressor: Pick by File Type](https://freetoolonline.com/guides/en/file-compressor.html) [lastmod=2026-07-06]
  Free file compressor that picks the right browser tool by what you have: ZIP a folder, compress photos, convert HEIC, bundle PDFs, or use a transfer link.
- [File to ZIP - Online File Compressor Guide](https://freetoolonline.com/guides/en/file-to-zip.html) [lastmod=2026-07-06]
  How to turn a file into a ZIP archive online: when ZIP actually shrinks the file, when it does not, and where the creator lives.
- [Folder To Zip: When and How to Archive a Folder Online (Free Guide)](https://freetoolonline.com/guides/en/folder-to-zip.html) [lastmod=2026-07-06]
  Folder to zip guide: when archiving a folder into a single .zip actually saves space, how to pick the right tool, and where the in-browser creator lives. Free, no install.
- [Free Online Photo Editor - Crop, Resize, Filter in Your Browser](https://freetoolonline.com/guides/photo-editor-online-pixlr.html) [lastmod=2026-07-06]
  Free browser photo editor: crop, resize, add filters and text, no upload, no account. Do common online photo edits on your device. Last reviewed 2026-07-02.
- [Free Online Tools - No Upload Required](https://freetoolonline.com/guides/en/free-online-tools-that-work-without-uploading-files.html) [lastmod=2026-07-06]
  How browser-based tools convert, compress, and edit files without ever uploading them. The technical reason it works, the limits, and the privacy you get free.
- [Front Camera Test - Check Your Selfie Camera Online](https://freetoolonline.com/guides/front-camera-test.html) [lastmod=2026-07-06]
  Front camera test online: open your selfie lens, see a live preview, switch front and back, and capture a JPEG - all in your browser. Last reviewed 2026-06-10.
- [Galaxy 3D Simulator vs a Desktop Astronomy App](https://freetoolonline.com/guides/galaxy-3d-simulator-vs-alternatives.html) [lastmod=2026-07-06]
  An honest look at Galaxy 3D Simulator in a browser tab versus installing a desktop astronomy app - 0 MB install, seconds to first view, $0.
- [Garden Defense vs Installing a Desktop Game](https://freetoolonline.com/guides/garden-defense-vs-alternatives.html) [lastmod=2026-07-06]
  Honest numbers on Garden Defense vs an installed desktop game - 0 MB to install, seconds to first play, free - and where a bigger game still wins.
- [Gif Frame Extractor - pull frames from any animated GIF](https://freetoolonline.com/guides/en/gif-frame-extractor.html) [lastmod=2026-07-06]
  Step-by-step guide on extracting frames from any animated GIF: pick PNG or JPG output, set FPS, and download every frame as its own image. Last reviewed 2026-05-14.
- [GIF Frame Extractor Output Looks Wrong? Three Causes & a 30-Sec Test](https://freetoolonline.com/guides/en/gif-frame-extractor-output-looks-wrong-three-causes.html) [lastmod=2026-07-06]
  GIF frame extractor gave one frame, blank frames, or weird colors? Three causes - static GIF, do-not-dispose disposal, memory cap - each with one fix.
- [GIF Frames vs GIF Frame Rate (FPS): Which One Do You Actually Need?](https://freetoolonline.com/guides/en/gif-frames-extract-vs-frame-rate-fps-explained.html) [lastmod=2026-07-06]
  GIF frames are the still pictures inside an animated GIF; GIF frame rate (FPS) is how fast they play. This guide tells you which one matches your task in one sentence and how to pick the right FPS when extracting frames.
- [GIF Into Frames: Save Each Animation Frame as PNG or JPG](https://freetoolonline.com/guides/en/gif-into-frames.html) [lastmod=2026-07-06]
  Turn a GIF into individual frames online. Upload the animation, pick PNG or JPG, and download every frame as a still image. Free, no install. Last reviewed 2026-05-20.
- [GIF to Frame - extract each frame as PNG or JPG](https://freetoolonline.com/guides/en/gif-to-frame.html) [lastmod=2026-07-06]
  Upload an animated GIF and extract every frame as a separate PNG or JPG. No install. Files auto-delete after the download window. Last reviewed 2026-06-10.
- [GIF to Frames Converter - Extract Each Frame as PNG or JPG](https://freetoolonline.com/guides/en/gif-to-frames-converter.html) [lastmod=2026-07-06]
  Turn an animated GIF into individual frames. Upload, pick PNG or JPG output, and download every frame as a separate still image. No install. Last reviewed 2026-06-10.
- [GPU Test vs Installing a Benchmark Suite](https://freetoolonline.com/guides/gpu-test-webgl-benchmark-info-vs-alternatives.html) [lastmod=2026-07-06]
  An honest look at a browser GPU test vs installed benchmark suites - what 0.7 MB and 20 to 40 seconds buy you, and where native software still wins.
- [Grocery List Step By Step](https://freetoolonline.com/guides/grocery-list-step-by-step.html) [lastmod=2026-07-06]
  Grocery List Step By Step - the exact steps to run Grocery List from open to downloaded result.
- [Grocery List Vs Alternatives](https://freetoolonline.com/guides/grocery-list-vs-alternatives.html) [lastmod=2026-07-06]
  Grocery List Vs Alternatives - how Grocery List compares with a desktop app or an upload-based service.
- [Grocery List When To Use](https://freetoolonline.com/guides/grocery-list-when.html) [lastmod=2026-07-06]
  Grocery List When To Use - when opening Grocery List fits the job and what to expect when it does.
- [Habit Tracker Step By Step](https://freetoolonline.com/guides/habit-tracker-step-by-step.html) [lastmod=2026-07-06]
  Habit Tracker Step By Step - the exact steps to run Habit Tracker from open to downloaded result.
- [Habit Tracker Vs Alternatives](https://freetoolonline.com/guides/habit-tracker-vs-alternatives.html) [lastmod=2026-07-06]
  Habit Tracker Vs Alternatives - how Habit Tracker compares with a desktop app or an upload-based service.
- [Habit Tracker When To Use](https://freetoolonline.com/guides/habit-tracker-when.html) [lastmod=2026-07-06]
  Habit Tracker When To Use - when opening Habit Tracker fits the job and what to expect when it does.
- [Hd Online Video Converter Step By Step](https://freetoolonline.com/guides/en/hd-video-converter-step-by-step.html) [lastmod=2026-07-06]
  Step-by-step guide to converting HD video in your browser - change the format or extract the audio track with FFmpeg.wasm, no upload and no install required.
- [Hd Online Video Converter Vs Alternatives](https://freetoolonline.com/guides/en/hd-video-converter-vs-alternatives.html) [lastmod=2026-07-06]
  Hd Online Video Converter Vs Alternatives - quick reference paired with Hd Online Video Converter.
- [Hd Online Video Converter When To Use](https://freetoolonline.com/guides/en/hd-video-converter-when.html) [lastmod=2026-07-06]
  Hd Online Video Converter When To Use - quick reference paired with Hd Online Video Converter.
- [HEIC to JPG: what the converter actually does](https://freetoolonline.com/guides/en/heic-to-jpg-claims-what-actually-works.html) [lastmod=2026-07-06]
  How /heic-to-jpg.html actually works: libheif decode, JPG re-encode, EXIF + quality controls, plus the claims the tool does NOT make. Read before you upload.
- [HEIC vs JPG Converter](https://freetoolonline.com/guides/en/heic-vs-jpg-converter-when-each-wins.html) [lastmod=2026-07-06]
  When to convert HEIC to JPG, when to keep the HEIC original, and when neither path wins. Decision rules for iCloud sync, Windows recipients, and editing.
- [HEIC vs JPG vs WebP](https://freetoolonline.com/guides/en/heic-vs-jpg-vs-webp.html) [lastmod=2026-07-06]
  iPhone photos are HEIC; Windows and Android expect JPG. What each format compresses well, when WebP is the right web pick, and how to convert between them.
- [How to check a laptop screen for dead pixels and backlight bleed](https://freetoolonline.com/guides/cek-layar-laptop.html) [lastmod=2026-07-06]
  Check a laptop screen in your browser: fill it with solid red, green, blue, black, white, and yellow to spot dead or stuck pixels and backlight bleed. Free, no install.
- [How to Check Camera Quality on Your Phone](https://freetoolonline.com/guides/en/how-to-check-camera-quality-on-your-phone.html) [lastmod=2026-07-06]
  A two-minute browser test for phone camera quality: resolution, focus, low-light, dust on the lens. What good looks like, and hardware vs software.
- [How to choose a compression level - quality vs file size, with examples](https://freetoolonline.com/guides/en/how-to-choose-a-compression-level.html) [lastmod=2026-07-06]
  Pick the right compression level on /compress-image.html - 50, 70, 85, or 100. Concrete file-size ranges, when each level is good enough, and when to keep going.
- [How to Compress a File Online (Step by Step)](https://freetoolonline.com/guides/en/how-to-compress-a-file-online.html) [lastmod=2026-07-06]
  Compress a single file online without uploading. Step-by-step for photos, PDFs, videos, and documents - 30 seconds per file in any browser.
- [How to compress a folder](https://freetoolonline.com/guides/en/how-to-compress-a-folder.html) [lastmod=2026-07-06]
  Compress an entire folder into a single ZIP in your browser. Three steps from drag-and-drop to a smaller, single-file download. Free, no install.
- [How to Compress a JPG for Email Attachment Size Limits](https://freetoolonline.com/guides/en/how-to-compress-a-jpg-for-email-attachment-limits.html) [lastmod=2026-07-06]
  Pick the right JPG quality to land photos under Gmail's 25 MB / Outlook 20 MB / corporate 10 MB email caps without the photo turning to mush.
- [How To Compress A Zip File - Three-Step Guide](https://freetoolonline.com/guides/en/how-to-compress-a-zip-file.html) [lastmod=2026-07-06]
  How to compress a zip file online in three steps: drop the folder, pick a compression target, download. Free, browser-based, no install. Last reviewed 2026-05-19.
- [How to compress a ZIP file to 100 KB - free, in the browser](https://freetoolonline.com/guides/en/compress-zip-file-to-100kb.html) [lastmod=2026-07-06]
  Trying to get a ZIP under 100 KB? Read which inputs hit that target on their own, when re-zipping helps, and when the file must be split. Free, in-browser.
- [How to compress a ZIP file to 2 MB - free, in the browser](https://freetoolonline.com/guides/en/compress-zip-file-to-2mb.html) [lastmod=2026-07-06]
  Need a ZIP under 2 MB for an email attachment limit? Read which inputs pack to 2 MB, when re-zipping helps, and when to split. Free, in the browser.
- [How to Compress a Zip to a Smaller Size](https://freetoolonline.com/guides/en/how-to-compress-zip-file-to-smaller-size.html) [lastmod=2026-07-06]
  Compress an existing zip again, the right way: when re-zipping helps, when it does nothing, and the in-browser tool to use without uploading the archive.
- [How to compress a ZIP to a specific size (2 / 25 MB, 100 KB)](https://freetoolonline.com/guides/en/how-to-compress-a-zip-file-to-a-specific-size.html) [lastmod=2026-07-06]
  Hitting an exact ZIP size (2 MB, 25 MB email cap, 100 KB form cap) is not deterministic. Three things actually decide it. The right tool order, per cap.
- [How to Compress an Image to 50KB Online (Free)](https://freetoolonline.com/guides/compress-image-online-to-50kb.html) [lastmod=2026-07-06]
  Get a JPG, PNG, or WebP under 50 KB online: convert to JPG, lower the quality slider, and check the side-by-side preview before you download. Free, no account.
- [How to Convert an iPhone Photo to JPG](https://freetoolonline.com/guides/en/how-to-convert-iphone-photo-to-jpg.html) [lastmod=2026-07-06]
  Convert an iPhone photo from HEIC to JPG without iCloud, an installed app, or a desktop. Browser walkthrough that handles single photos and batches alike.
- [How to Convert HEIC to JPG Step by Step](https://freetoolonline.com/guides/en/how-to-convert-heic-to-jpg-step-by-step.html) [lastmod=2026-07-06]
  Convert HEIC to JPG step by step. Server-side decode via libheif, download the JPG over HTTPS, ready to email. iPhone photo workflow in seconds.
- [How to Convert Units Online - Free, No Sign-Up](https://freetoolonline.com/guides/how-to-convert-units-online.html) [lastmod=2026-07-06]
  Convert units online for free: length, weight, temperature, and more. Pick a category, choose from and to units, and type a value - all in your browser, no account.
- [How to Crop and Rotate an Image](https://freetoolonline.com/guides/en/how-to-crop-and-rotate-an-image.html) [lastmod=2026-07-06]
  Crop and rotate an image in the browser without losing the original. Pixel-precise crop, lossless 90-degree rotation, and where the EXIF rotation flag matters.
- [How to Edit Code Online - Free, In Your Browser](https://freetoolonline.com/guides/how-to-edit-code-online.html) [lastmod=2026-07-06]
  Edit code online in a free in-browser editor - syntax highlighting for 18 languages, light and dark themes, open and save files. Runs on your device, no upload.
- [How to Explore Black Hole 3D Visualizer - Step by Step](https://freetoolonline.com/guides/black-hole-3d-visualizer-step-by-step.html) [lastmod=2026-07-06]
  Learn the drag, zoom, and fullscreen controls of the Black Hole 3D Visualizer and how to read its glowing disk and real-figure facts panel.
- [How to Explore Galaxy 3D Simulator - Step by Step](https://freetoolonline.com/guides/galaxy-3d-simulator-step-by-step.html) [lastmod=2026-07-06]
  Open Galaxy 3D Simulator, drag to rotate, zoom into the core, and regenerate fresh spiral arms - a short walkthrough of every control on the page.
- [How to Extract a File Online - ZIP, RAR, 7z (which route on this site does what)](https://freetoolonline.com/guides/en/how-to-extract-a-file-online-zip-rar-7z.html) [lastmod=2026-07-06]
  If you searched "extract file online" or "file zipper", this is the routing rule. ZIP archives extract online via /unzip-file.html (server-upload, optional password). RAR / 7z extract locally with your OS tool - this site has no server-side .rar or .7z extractor, and the guide says so honestly.
- [How to Fill Out a PDF Form Online - No Upload](https://freetoolonline.com/guides/pdf-filler-form-editor-step-by-step.html) [lastmod=2026-07-06]
  Step-by-step guide to filling in an existing PDF's form fields online, entirely in your browser, with no upload and no account.
- [How to flatten a PDF - and when to do it](https://freetoolonline.com/guides/en/how-to-flatten-a-pdf-and-when-to-do-it.html) [lastmod=2026-07-06]
  Flattening a PDF bakes form fields, annotations, and signatures into static page graphics. Read what flattening does, when you need it, and when you do not.
- [How to Hide a Message in an Image (Steganography)](https://freetoolonline.com/guides/how-to-hide-a-message-in-an-image.html) [lastmod=2026-07-06]
  How to hide a secret text message inside a PNG image and read it back, optionally with a password - free, in your browser, nothing uploaded.
- [How to Make a To-Do List Online - Free and No Sign-Up](https://freetoolonline.com/guides/how-to-make-a-to-do-list-online.html) [lastmod=2026-07-06]
  Make a simple to-do list online for free. Add tasks, check them off, and delete them; your list saves in your browser with no app install and no account.
- [How to Make a Zip File Smaller](https://freetoolonline.com/guides/en/how-to-make-a-zip-file-smaller.html) [lastmod=2026-07-06]
  Make a zip smaller without losing files: pick the right compression level, drop pre-compressed media first, split if it must clear an email size cap.
- [How to Pick a Color Online - HEX, RGB, and HSL](https://freetoolonline.com/guides/how-to-pick-a-color-online.html) [lastmod=2026-07-06]
  Pick a color online and read its HEX, RGB, and HSL values, get matching palettes, check contrast, and save favorites - all in your browser, no account.
- [How to Play Garden Defense - Step by Step](https://freetoolonline.com/guides/garden-defense-step-by-step.html) [lastmod=2026-07-06]
  Learn Garden Defense in one read - what Shooters, Batteries, and Walls cost, how energy ticks in, and how to survive all five waves in your browser.
- [How to Play Retro Tank Battle - Step by Step](https://freetoolonline.com/guides/retro-tank-battle-step-by-step.html) [lastmod=2026-07-06]
  Learn Retro Tank Battle in minutes - move with arrows or WASD, fire with Space, break brick walls, and clear a wave of six enemy tanks before your base falls.
- [How to Play Sky Gates Flight - Step by Step](https://freetoolonline.com/guides/sky-gates-flight-step-by-step.html) [lastmod=2026-07-06]
  Start a flight, steer through green gates, dodge red ones, and survive the speed ramp in Sky Gates Flight - a step-by-step walkthrough of every stage.
- [How to Play Snake Classic - Step by Step](https://freetoolonline.com/guides/snake-classic-step-by-step.html) [lastmod=2026-07-06]
  Learn the Snake Classic controls - keyboard, swipe, or on-screen pad - plus the speed ramp, pause, fullscreen, and how your best score is saved.
- [How to Play Voxel World Builder - Step by Step](https://freetoolonline.com/guides/voxel-world-builder-step-by-step.html) [lastmod=2026-07-06]
  Play Voxel World Builder step by step: place and remove six block types on a 48x48 lot, orbit the camera, and export your world as a JSON backup.
- [How to Record Your Screen Online - Screen, Camera, or Microphone](https://freetoolonline.com/guides/how-to-record-your-screen-online.html) [lastmod=2026-07-06]
  Record your screen, camera, or microphone in the browser, blur faces on your device, and download as WebM or MP4. No upload, no install, no account.
- [How to Reduce ZIP File Size - what compresses, what does not](https://freetoolonline.com/guides/en/how-to-reduce-zip-file-size.html) [lastmod=2026-07-06]
  Why most ZIPs do not shrink and how to actually reduce one - what compresses (text, CSV, source code), what does not (JPG, MP4, MP3), and the workflow that works.
- [How to Reduce Zip File Size Online (Free)](https://freetoolonline.com/guides/en/how-to-reduce-zip-file-size-online.html) [lastmod=2026-07-06]
  Reduce zip file size online and free. Why your zip is big, what compresses well, and three tactics to fit any 25 MB email or upload limit.
- [How to Resize an Image Online for Free](https://freetoolonline.com/guides/en/resize-image-online-free.html) [lastmod=2026-07-06]
  Resize an image online free - set exact pixels or a percentage, lock the aspect ratio, and export JPG, PNG, or WebP. Free, no sign-up.
- [How to Run a Private AI Chat in Your Browser - Free, No Upload](https://freetoolonline.com/guides/how-to-run-a-private-ai-chat-in-your-browser.html) [lastmod=2026-07-06]
  Run an AI chatbot in your browser - the model loads on your device, so chats stay private with no upload and no account. Requires a WebGPU browser. Free.
- [How to Run the GPU Test - Step by Step](https://freetoolonline.com/guides/gpu-test-webgl-benchmark-info-step-by-step.html) [lastmod=2026-07-06]
  Read the browser capability report, run the tiered 3D benchmark, and make sense of the score - a step-by-step walkthrough of the free online GPU test.
- [How to Sign a PDF After Removing Its Password](https://freetoolonline.com/guides/en/how-to-sign-pdf-after-removing-a-password.html) [lastmod=2026-07-06]
  How to sign a PDF after removing its owner password - legit workflow for contracts and forms, with legal and privacy notes.
- [How to Split a GIF Into Frames](https://freetoolonline.com/guides/en/how-to-split-a-gif-into-frames-for-editing.html) [lastmod=2026-07-06]
  Pull individual frames out of an animated GIF for editing, archiving, or social posts. Browser walkthrough that keeps the original timing data per frame.
- [How to tell if a JPG was compressed too much](https://freetoolonline.com/guides/en/how-to-tell-if-a-jpg-was-compressed-too-much.html) [lastmod=2026-07-06]
  Read the saved-with quality value of an existing JPG, recognise visible artifacts of over-compression, and decide whether re-encoding will help or hurt.
- [How to Test a Keyboard Online Step by Step](https://freetoolonline.com/guides/en/how-to-test-a-keyboard-online-step-by-step.html) [lastmod=2026-07-06]
  A 60-second browser keyboard test: open the page, press each key, watch each one highlight. Spot non-working keys, sticky keys, and modifier-key faults without installing anything.
- [How to Test a Touchscreen for Bad Spots](https://freetoolonline.com/guides/en/how-to-test-a-touchscreen-for-bad-spots.html) [lastmod=2026-07-06]
  A 60-second browser-only check for unresponsive areas on phone, tablet, or laptop touchscreens. What each failure pattern means and when to call warranty.
- [How to Turn Text Into an Image (PNG) Online Free](https://freetoolonline.com/guides/how-to-turn-text-into-an-image-online.html) [lastmod=2026-07-06]
  Style text in your browser - choose a font, size, weight, colors, spacing, and a drop shadow, then download it as a PNG image. Free, no upload, no account.
- [How to Use City Time Machine 3D - Step by Step](https://freetoolonline.com/guides/city-time-machine-3d-step-by-step.html) [lastmod=2026-07-06]
  Load the 3D city block, orbit and zoom the camera, drag the 1945-2055 timeline, and watch buildings, signs, and people morph era by era in your browser.
- [How to Use Solar System 3D Explorer - Step by Step](https://freetoolonline.com/guides/solar-system-3d-explorer-step-by-step.html) [lastmod=2026-07-06]
  Move the camera, pace the orbits, and pull up real planet figures in Solar System 3D Explorer - a five-step walkthrough with nothing to install.
- [How to Use the Wheel Spinner Step by Step](https://freetoolonline.com/guides/wheel-spinner-wheel-names-step-by-step.html) [lastmod=2026-07-06]
  A step-by-step walkthrough of the online wheel spinner: entering names, spinning fairly, reading the winner, and picking it over dice, coins, or a manual draw.
- [How to Visualize Data Online - Make a Chart From Your Numbers](https://freetoolonline.com/guides/how-to-visualize-data-online.html) [lastmod=2026-07-06]
  Turn rows of data into a chart in your browser. Paste CSV, JSON, or Label, Value lines, pick a chart type, and see it drawn - no upload, no account.
- [How to Zip a Folder Online, Step by Step](https://freetoolonline.com/guides/en/how-to-zip-folder-online-step-by-step.html) [lastmod=2026-07-06]
  Zip a folder online in five steps: pick the folder, keep the structure, set compression, name the output, download. Browser-only, with the traps to avoid.
- [How to Zip Multiple Files Into One](https://freetoolonline.com/guides/en/how-to-zip-multiple-files-into-one.html) [lastmod=2026-07-06]
  Zip several files into a single archive in your browser: select, name the output, choose a compression level, and download. No upload or install required.
- [Image to Base64 - Embed in HTML/CSS vs Link the Image File](https://freetoolonline.com/guides/en/image-to-base64-embed-in-html-vs-link.html) [lastmod=2026-07-06]
  Should you embed an image as a base64 data URL in HTML/CSS, or link the image file? A practical decision rule with concrete byte thresholds, cache and HTTP/2 tradeoffs, and a 30-second sanity check.
- [ImageMagick Online vs Task-Specific Tools - Which to Pick](https://freetoolonline.com/guides/en/imagemagick-online-vs-task-specific-tools-which-to-pick.html) [lastmod=2026-07-06]
  Routing guide for readers searching "imagemagick online": when to open ImageMagick Online and when a task-specific tool (Crop, Resize, Compress, HEIC to JPG) is the faster path. Five rules, one decision in 30 seconds.
- [In-Browser Image Tools - Lessons Learned](https://freetoolonline.com/guides/en/what-we-learned-running-free-in-browser-image-tools-for-100k-monthly-users.html) [lastmod=2026-07-06]
  What we learned running free in-browser image tools for 100K monthly users - technical choices, usage patterns, and what surprised us.
- [iPhone Photo Format Explained](https://freetoolonline.com/guides/en/iphone-photo-format-explained-heic-jpg-png-raw.html) [lastmod=2026-07-06]
  iPhone photos can be HEIC, JPG, PNG, or RAW. Here is what each format is, when iOS uses it, and the right one to convert to before sharing outside Apple.
- [Is This Long Number a Timestamp? Milliseconds vs Seconds](https://freetoolonline.com/guides/en/long-number-millisecond-or-second.html) [lastmod=2026-07-06]
  A pasted 10-, 13-, 16-, or 19-digit number can be Unix seconds, milliseconds, microseconds, nanoseconds, or just an ID - here's how to tell quickly.
- [JPG vs JPEG - Are They the Same?](https://freetoolonline.com/guides/en/jpg-vs-jpeg-are-they-the-same.html) [lastmod=2026-07-06]
  JPG and JPEG are the same image format. The two extensions exist because of an old Windows three-letter limit. Here is the story and which name to prefer.
- [JPG vs PNG for the Web](https://freetoolonline.com/guides/en/jpg-vs-png-for-web.html) [lastmod=2026-07-06]
  JPG vs PNG for web images - when lossy compression wins, when lossless + transparency matters, and how WebP changes the calculus in 2026.
- [Json Formatter Online Step By Step](https://freetoolonline.com/guides/en/json-formatter-step-by-step.html) [lastmod=2026-07-06]
  Json Formatter Online Step By Step - quick reference paired with Json Formatter Online.
- [Json Formatter Online Vs Alternatives](https://freetoolonline.com/guides/en/json-formatter-vs-alternatives.html) [lastmod=2026-07-06]
  Json Formatter Online Vs Alternatives - quick reference paired with Json Formatter Online.
- [Json Formatter Online When To Use](https://freetoolonline.com/guides/en/json-formatter-when.html) [lastmod=2026-07-06]
  Json Formatter Online When To Use - quick reference paired with Json Formatter Online.
- [JSON parser online: validate vs format vs tree view - which feature do you need?](https://freetoolonline.com/guides/en/json-parser-validate-vs-format-vs-tree-view.html) [lastmod=2026-07-06]
  Validate, format, or explore JSON? A 30-second guide to picking the right sub-feature of the free JSON parser on freetoolonline.com - in-browser.
- [JSON vs YAML vs TOML, Explained](https://freetoolonline.com/guides/en/json-vs-yaml-vs-toml-config-formats-explained.html) [lastmod=2026-07-06]
  Three config formats, three ergonomics. JSON for machines, YAML for humans, TOML for shallow config. The trade-offs that decide what your project needs.
- [Keyboard Test Keys Not Detected: 4 Fixes](https://freetoolonline.com/guides/en/keyboard-test-keys-not-detected-four-fixes.html) [lastmod=2026-07-06]
  Keyboard test shows some keys don't highlight? Four causes - focus, OS layout, sticky-keys filter, hardware switch - and a one-minute fix each.
- [Keyboard Tester - Rollover vs Anti-Ghost](https://freetoolonline.com/guides/en/keyboard-tester-online-rollover-vs-anti-ghosting.html) [lastmod=2026-07-06]
  N-key rollover and anti-ghosting are different keyboard features. A browser keyboard test surfaces both. What to press, what to look for, what the result means.
- [Kompres File Zip Online - Panduan Lengkap di Browser](https://freetoolonline.com/guides/en/kompres-file-zip.html) [lastmod=2026-07-06]
  Panduan kompres file zip online di browser. Bundel file dan folder menjadi satu arsip .zip, tambahkan kata sandi opsional, unduh dalam hitungan detik. Gratis, tanpa instalasi.
- [Kompres Zip - Kapan Arsip Mengecilkan Ukuran](https://freetoolonline.com/guides/en/kompres-zip.html) [lastmod=2026-07-06]
  Panduan kompres zip: kapan format .zip benar-benar mengecilkan ukuran, kapan tidak, dan di mana alat pembuat arsip berada di browser. Gratis, tanpa instalasi.
- [LCD Checker: Run a Free Online Screen Check in Your Browser](https://freetoolonline.com/guides/en/lcd-checker.html) [lastmod=2026-07-06]
  LCD checker, lcd check, monitor checker - one job: cycle the panel through full-screen colors to spot dead pixels, backlight bleed, and color cast. Free and browser-based.
- [LCD Screen Test - online guide](https://freetoolonline.com/guides/en/lcd-screen-test.html) [lastmod=2026-07-06]
  LCD screen test guide: run a free in-browser dead-pixel and color uniformity check. Step-by-step, no install. Last reviewed 2026-05-20.
- [Lcd Test - lcd test guide](https://freetoolonline.com/guides/en/lcd-test-online.html) [lastmod=2026-07-06]
  Lcd Test guide: how to lcd test online, free in your browser. Step-by-step, no install. Last reviewed 2026-05-13.
- [LCD Test for Laptop Screens - Dead Pixel and Color Check](https://freetoolonline.com/guides/en/lcd-test-laptop.html) [lastmod=2026-07-06]
  Test a laptop LCD for dead pixels, stuck pixels, and backlight bleed - cycle red, green, blue, black, and white full-screen in your browser.
- [LCD test vs display test vs monitor test - which one?](https://freetoolonline.com/guides/en/lcd-test-vs-display-test-which-do-you-need.html) [lastmod=2026-07-06]
  Three names, three different checks. LCD test = panel pixels and uniformity. Display test = panel + signal path. Monitor test = panel + signal + ports + scaling. Which to run when, and the right tool to start with.
- [LED Test vs LCD Test: Which Applies to Your Screen?](https://freetoolonline.com/guides/en/led-test-vs-lcd-test-which-applies-to-your-screen.html) [lastmod=2026-07-06]
  LED is the backlight; LCD is the panel. On almost every modern screen, both names mean the same hardware - one full-screen color cycle answers either query.
- [LED Test: how to test a laptop or phone screen](https://freetoolonline.com/guides/en/led-test.html) [lastmod=2026-07-06]
  Test your LED-lit screen for stuck or dead pixels and backlight bleed. Paint six full-screen colors in your browser. No install, free.
- [Make a ZIP File Online - what the tool actually does, and when ZIP saves space](https://freetoolonline.com/guides/en/make-zip-file-online.html) [lastmod=2026-07-06]
  Make a ZIP file online: when ZIP actually saves space, when it does not, and how to send files or a folder as a single download. Free, no install.
- [MD5 Alternatives: bcrypt, Argon2id, SHA-256](https://freetoolonline.com/guides/en/md5-alternatives-bcrypt-argon2id-sha256-when-each-fits.html) [lastmod=2026-07-06]
  MD5 is wrong for passwords and adversarial integrity. Pick bcrypt or Argon2id for passwords, HMAC-SHA-256 for MAC, SHA-256 for integrity.
- [MD5 decode: what readers usually mean and where to go next](https://freetoolonline.com/guides/en/md5-decode.html) [lastmod=2026-07-06]
  MD5 decode guide: MD5 is one-way, so "decode" usually means generate a hash, look up a known plaintext, or pick a different hash. Routes to the right tool.
- [MD5 decrypt online: why you cannot, and the practical workaround](https://freetoolonline.com/guides/en/md5-decrypt-online.html) [lastmod=2026-07-06]
  MD5 is one-way - it cannot be decrypted. Here is what "MD5 decrypt online" actually means and the safe way to look up known MD5 hashes. Last reviewed 2026-05-18.
- [MD5 Decrypter - Reverse-Lookup and Hash Generator Online](https://freetoolonline.com/guides/en/md5-decrypter.html) [lastmod=2026-07-06]
  Use the free MD5 hash tool to hash text, compare checksums, or look up a known value. Runs in your browser - no upload, no account.
- [MD5 Hash Decrypt: When Lookup Works, When It Cannot](https://freetoolonline.com/guides/en/md5-hash-decrypt.html) [lastmod=2026-07-06]
  MD5 hash decrypt - the practical question. Reverse lookup works for short common inputs that sit in rainbow tables and dictionaries; for random secrets, brute force is the floor.
- [MD5 hashing in the browser - what `common::md5::gethash64string` style code calls do](https://freetoolonline.com/guides/en/common-md5-gethash64string.html) [lastmod=2026-07-06]
  MD5 hashing explained for readers searching framework-style method names. What an MD5 returns, where the cache reverse lookup applies, and when not to use MD5.
- [MD5 password: how to hash a password and when MD5 is wrong](https://freetoolonline.com/guides/en/md5-password.html) [lastmod=2026-07-06]
  MD5 password guide: paste a password string, get a 32-hex fingerprint, and learn when MD5 is safe for checksums and when bcrypt or argon2id is the right pick.
- [MD5 to text - why you cannot convert it back (and what to do)](https://freetoolonline.com/guides/en/md5-to-text-why-you-cannot-convert-back.html) [lastmod=2026-07-06]
  A 32-character MD5 string is a one-way fingerprint - it cannot be converted back to the text that produced it. This guide explains why, and gives the three actions that actually work: verify a known string, look up a common-input hash, or pick a different hash for the job.
- [MD5 vs SHA-256 - When to Hash](https://freetoolonline.com/guides/en/md5-vs-sha256-when-to-hash.html) [lastmod=2026-07-06]
  MD5 vs SHA-256 - speed, collision resistance, and concrete use cases. When fingerprinting is enough, when cryptographic strength matters.
- [Mengecilkan Ukuran Zip Online - Free Guide](https://freetoolonline.com/guides/mengecilkan-ukuran-zip.html) [lastmod=2026-07-06]
  Learn how to mengecilkan ukuran zip online: pick files, compress, and download a smaller archive in your browser. Step-by-step, no install. Last reviewed 2026-06-19.
- [Merge PDF Online Free - Combine PDFs in Your Browser](https://freetoolonline.com/guides/merge-pdf-online-free-unlimited.html) [lastmod=2026-07-06]
  Merge PDF files online for free - combine multiple PDFs into one, reorder before export, then download. The in-browser option needs no upload and no account.
- [Microphone Test Levels: What Quiet, Normal, and Peak Mean](https://freetoolonline.com/guides/en/microphone-test-online-quiet-normal-peak-meter.html) [lastmod=2026-07-06]
  Read a browser microphone test level meter in plain English: what quiet looks like, what normal call-ready audio is, and when peaks mean clipping.
- [Microphone Test No Sound: 4 Fixes That Work](https://freetoolonline.com/guides/en/microphone-test-no-sound-four-fixes.html) [lastmod=2026-07-06]
  Microphone test shows no sound or a flat waveform? Four causes - permission, OS mute, app holding the device, hardware mute - and a one-minute fix each.
- [Microphone Test Online - What It Checks](https://freetoolonline.com/guides/en/microphone-test-online-what-it-actually-checks.html) [lastmod=2026-07-06]
  A browser microphone test confirms the mic is selected, captures sound, and matches your expected volume. What it cannot check, and where to go for more.
- [Microphone Test Permission Blocked: How to Allow Mic Access in Your Browser](https://freetoolonline.com/guides/en/microphone-test-permission-blocked-how-to-allow-it.html) [lastmod=2026-07-06]
  Microphone test shows a flat meter or no permission prompt? Allow mic access in Chrome, Firefox, Safari, and Edge - the exact click path per browser, plus what blocked vs ignored looks like.
- [Millisecond To Date - read an epoch millisecond as a date](https://freetoolonline.com/guides/en/millisecond-to-date.html) [lastmod=2026-07-06]
  Paste a 13-digit epoch millisecond value and read it back as a human date. Runs in your browser, no upload, no account. Last reviewed 2026-05-20.
- [Milliseconds to date: UTC vs local time, why it can look off](https://freetoolonline.com/guides/en/milliseconds-to-date-utc-vs-local-time.html) [lastmod=2026-07-06]
  Milliseconds to date conversion: UTC vs local time, why your result may be hours off, and how to verify which value is correct. In-browser, free.
- [Minify CSS and JS for Cold Start](https://freetoolonline.com/guides/en/how-to-minify-css-js-for-cloud-run-cold-start.html) [lastmod=2026-07-06]
  Minify CSS and JS to cut Cloud Run cold-start and Cloudflare Workers bundle size. Tools, build flags, and measured latency savings.
- [MP4 to GIF Online Free: Trim, Resize, and Export an Animated GIF](https://freetoolonline.com/guides/mp4-to-gif-online-free.html) [lastmod=2026-07-06]
  Convert an MP4 clip to an animated GIF online free: trim a 3 to 10 second window, set width and frame rate, then download. Built on the GIF Maker tool.
- [MP4 vs MOV vs MKV - Which Container When](https://freetoolonline.com/guides/en/mp4-vs-mov-vs-mkv-which-container-when.html) [lastmod=2026-07-06]
  Three video containers compared. MP4 for everywhere, MOV for the Apple pipeline, MKV for archival with multiple tracks. Clean rules for picking and converting.
- [MP4 vs WebM for the Web](https://freetoolonline.com/guides/en/mp4-vs-webm-for-web.html) [lastmod=2026-07-06]
  MP4 plays in every browser; WebM is 20-30 percent smaller in modern ones. Decision matrix, fallback pattern, and when each container is worth the trade-off.
- [ms to date - paste a 13-digit millisecond timestamp, read the local date back](https://freetoolonline.com/guides/en/ms-to-date.html) [lastmod=2026-07-06]
  "ms to date" guide: paste a 13-digit Unix millisecond timestamp, read back the matching local date and 24-hour time. 10 digits? Multiply by 1000 first.
- [OLED Test vs LCD Test: What Changes on an OLED Panel](https://freetoolonline.com/guides/en/oled-test-vs-lcd-test-what-changes-on-oled.html) [lastmod=2026-07-06]
  OLED panels need a different test than LCD: no backlight bleed to look for, but burn-in and image retention matter. This guide explains what changes when your screen is OLED.
- [Online Alarm Clock: Step-by-Step Guide](https://freetoolonline.com/guides/alarm-clock-step-by-step.html) [lastmod=2026-07-06]
  Set the alarm time, watch for the on-screen alert, and see exactly what happens - and does not happen - when it fires.
- [Online Diff Tool - Compare Two Texts Side-by-Side Guide](https://freetoolonline.com/guides/en/online-diff-tool.html) [lastmod=2026-07-06]
  Online diff tool guide: paste two text blocks and read the added, removed, and changed lines side-by-side in your browser. No install, no upload.
- [Online Stopwatch: Step-by-Step Guide](https://freetoolonline.com/guides/stopwatch-step-by-step.html) [lastmod=2026-07-06]
  Start, Lap, Stop, and Reset - see exactly what each control does and how the lap list works before you time anything.
- [Online Video Trimmer Step By Step](https://freetoolonline.com/guides/video-trimmer-step-by-step.html) [lastmod=2026-07-06]
  Online Video Trimmer Step By Step - the exact steps to run Online Video Trimmer from open to downloaded result.
- [Online Video Trimmer Vs Alternatives](https://freetoolonline.com/guides/video-trimmer-vs-alternatives.html) [lastmod=2026-07-06]
  Online Video Trimmer Vs Alternatives - how Online Video Trimmer compares with a desktop app or an upload-based service.
- [Online Video Trimmer When To Use](https://freetoolonline.com/guides/video-trimmer-when.html) [lastmod=2026-07-06]
  Online Video Trimmer When To Use - when opening Online Video Trimmer fits the job and what to expect when it does.
- [Online Voice Recorder Step By Step](https://freetoolonline.com/guides/voice-recorder-step-by-step.html) [lastmod=2026-07-06]
  Online Voice Recorder Step By Step - the exact steps to run Online Voice Recorder from open to downloaded result.
- [Online Voice Recorder Vs Alternatives](https://freetoolonline.com/guides/voice-recorder-vs-alternatives.html) [lastmod=2026-07-06]
  Online Voice Recorder Vs Alternatives - how Online Voice Recorder compares with a desktop app or an upload-based service.
- [Online Voice Recorder When To Use](https://freetoolonline.com/guides/voice-recorder-when.html) [lastmod=2026-07-06]
  Online Voice Recorder When To Use - when opening Online Voice Recorder fits the job and what to expect when it does.
- [Online Zip File Compressor - online zip file compressor guide](https://freetoolonline.com/guides/en/online-zip-file-compressor.html) [lastmod=2026-07-06]
  Online zip file compressor guide: bundle files or a whole folder into one .zip, set an optional password, and download. Free, in-browser, no install.
- [Online Zip File: How to Build a ZIP Archive Online (Free, In-Browser)](https://freetoolonline.com/guides/en/online-zip-file.html) [lastmod=2026-07-06]
  Build a ZIP archive online - paste files or a folder into the browser creator, get a downloadable .zip, no install, no signup. Last reviewed 2026-05-18.
- [Online Zip Tool (Free, In-Browser Build Service)](https://freetoolonline.com/guides/en/i-love-zip.html) [lastmod=2026-07-06]
  Online zip tool: turn a folder or multi-file selection into one .zip via a private build service. Free, no install, no account, source files auto-delete.
- [Online Zip vs 7z vs Rar - Which to Pick](https://freetoolonline.com/guides/en/online-zip-vs-7z-vs-rar-which-to-pick.html) [lastmod=2026-07-06]
  Pick the right archive format online: zip for compatibility, 7z for best compression, rar when you must open one. Decision matrix and browser-tool routing.
- [Password Generator Step by Step: Build a Strong Password in Your Browser](https://freetoolonline.com/guides/password-generator-step-by-step.html) [lastmod=2026-07-06]
  A step-by-step guide to the free Password Generator: set the length, pick character sets, read the strength label, and copy a strong random password - all in your browser.
- [Password Generator vs. Alternatives: Which to Use](https://freetoolonline.com/guides/password-generator-vs-alternatives.html) [lastmod=2026-07-06]
  Compare the in-browser password generator against typing your own, using a spreadsheet, or relying on your memory - see which approach produces the strongest, most practical passwords.
- [Password Generator: When to Use It](https://freetoolonline.com/guides/password-generator-when.html) [lastmod=2026-07-06]
  See when a browser-based password generator beats typing your own: account creation, password resets, and any login that bans reused or guessable passwords.
- [PDF Editing Ladder - Pick the Right PDF Tool](https://freetoolonline.com/guides/en/pdf-editing-ladder.html) [lastmod=2026-07-06]
  PDF editing decision ladder. Split, merge, extract, protect, flatten, convert - pick the right tool by intent in 30 s. 12 PDF tools mapped to the workflow.
- [PDF Password - Owner vs User](https://freetoolonline.com/guides/en/pdf-password-types-owner-vs-user.html) [lastmod=2026-07-06]
  PDF password types - owner vs user password, what each blocks, when to set each, how to choose passwords that actually protect the document.
- [PDF preflight online: what it actually checks (and what it does not)](https://freetoolonline.com/guides/en/pdf-preflight-online-what-it-actually-checks.html) [lastmod=2026-07-06]
  Online PDF preflight checks PDF/A archival conformance - it does not fix issues, certify PDF/X print, or repair corrupt PDFs. The 30-second tool-pick guide before you upload.
- [PDF to Text Online: Extract Text Free, No Install](https://freetoolonline.com/guides/pdf-to-text-online-i-love-pdf.html) [lastmod=2026-07-06]
  Extract text from a PDF online, free and in your browser. Copy or download the result as .txt. Works on PDFs with embedded text; scanned pages need OCR first.
- [PDF vs HEIC for Archival](https://freetoolonline.com/guides/en/pdf-vs-heic-for-document-archival.html) [lastmod=2026-07-06]
  PDF vs HEIC for document archival - which preserves receipts, IDs, and forms long-term. Size, searchability, and tool-support tradeoffs for 2026.
- [Percentage Calculator Step By Step](https://freetoolonline.com/guides/percentage-calculator-step-by-step.html) [lastmod=2026-07-06]
  Percentage Calculator Step By Step - the exact steps to run Percentage Calculator from open to downloaded result.
- [Percentage Calculator Vs Alternatives](https://freetoolonline.com/guides/percentage-calculator-vs-alternatives.html) [lastmod=2026-07-06]
  Percentage Calculator Vs Alternatives - how Percentage Calculator compares with a desktop app or an upload-based service.
- [Percentage Calculator When To Use](https://freetoolonline.com/guides/percentage-calculator-when.html) [lastmod=2026-07-06]
  Percentage Calculator When To Use - when opening Percentage Calculator fits the job and what to expect when it does.
- [Photo Editor vs Graphics App vs Batch](https://freetoolonline.com/guides/en/photo-editor-vs-graphics-app-vs-batch-processor.html) [lastmod=2026-07-06]
  Three image-tool categories solve three different problems. Photo editor for one image, graphics app for design, batch processor for many files at once.
- [PNG to SVG - when to vectorize a raster image](https://freetoolonline.com/guides/en/png-to-svg-when-to-vectorize-a-raster-image.html) [lastmod=2026-07-06]
  PNG to SVG online - auto-traces raster pixels into vector paths. Read when vectorization works (logos, icons, line art) and when it does not (photos).
- [PNG vs SVG - When to Use Each](https://freetoolonline.com/guides/en/png-vs-svg-when-to-use.html) [lastmod=2026-07-06]
  PNG vs SVG - raster vs vector, when to pick each for logos, icons, UI, and photos, with exact conversion paths and performance tradeoffs.
- [QR Code Content Types: URL, vCard, Wi-Fi, Text - Which to Pick](https://freetoolonline.com/guides/en/qr-code-content-types-url-vcard-wifi-text-which-to-pick.html) [lastmod=2026-07-06]
  First QR code? Pick the right content type. URL vs vCard vs Wi-Fi vs plain text - what each encodes, how scanners respond, which fits a business card or flyer.
- [QR code error correction and scan failures](https://freetoolonline.com/guides/en/qr-code-error-correction-and-scan-failures.html) [lastmod=2026-07-06]
  If a QR code will not scan, the cause is usually one of four: payload size, error-correction level, contrast, or print scale. Find which and fix it.
- [QR Code Generator - Best Practices](https://freetoolonline.com/guides/en/qr-code-generator-best-practices.html) [lastmod=2026-07-06]
  A QR code that always scans is a small set of choices: error correction, contrast, size, payload. Defaults that work, ones that fail in the field.
- [Qr Code Scanner Step By Step](https://freetoolonline.com/guides/qr-code-scanner-step-by-step.html) [lastmod=2026-07-06]
  Qr Code Scanner Step By Step - the exact steps to run QR Code Scanner from open to downloaded result.
- [Qr Code Scanner Vs Alternatives](https://freetoolonline.com/guides/qr-code-scanner-vs-alternatives.html) [lastmod=2026-07-06]
  Qr Code Scanner Vs Alternatives - how QR Code Scanner compares with a desktop app or an upload-based service.
- [Qr Code Scanner When To Use](https://freetoolonline.com/guides/qr-code-scanner-when.html) [lastmod=2026-07-06]
  Qr Code Scanner When To Use - when opening QR Code Scanner fits the job and what to expect when it does.
- [Random List Shuffler vs. Alternatives](https://freetoolonline.com/guides/random-list-shuffler-vs-alternatives.html) [lastmod=2026-07-06]
  Compares the browser-based random list shuffler against a manual reorder and a spreadsheet RAND() sort on setup time, install size, and privacy.
- [Random List Shuffler: Step-by-Step Guide](https://freetoolonline.com/guides/random-list-shuffler-step-by-step.html) [lastmod=2026-07-06]
  Step-by-step: paste a list, click Shuffle, and get a fair random order using Fisher-Yates and crypto.getRandomValues in your browser.
- [Random Number Generator Online: Step-by-Step Guide](https://freetoolonline.com/guides/random-number-generator-step-by-step.html) [lastmod=2026-07-06]
  Step-by-step guide to Random Number Generator Online: setting Min and Max, reading the result, and how it differs from the dice roller and coin flip.
- [Read and compare MD5 hashes correctly: case, whitespace, hex format](https://freetoolonline.com/guides/en/read-and-compare-md5-hashes-correctly.html) [lastmod=2026-07-06]
  Two MD5 hashes match when their 32 hex characters agree after lowercasing and trimming whitespace. Walk through the 4 cosmetic differences and the real ones.
- [Recover a Corrupt Zip File - Options](https://freetoolonline.com/guides/en/recover-corrupt-zip-file-options.html) [lastmod=2026-07-06]
  Practical paths for a zip that will not open: re-download, partial extract, repair tools, and when to give up. What works, what does not, what to try first.
- [Reduce Zip File Size Online - Free Browser Guide](https://freetoolonline.com/guides/en/reduce-zip-file-size-online.html) [lastmod=2026-07-06]
  Shrink a ZIP archive in your browser - what actually saves bytes, what does not, and how to hit a 25 MB email cap without splitting the file.
- [Remove Duplicate Lines Step by Step: Clean a List in Your Browser](https://freetoolonline.com/guides/remove-duplicate-lines-step-by-step.html) [lastmod=2026-07-06]
  A step-by-step guide to the free Remove Duplicate Lines tool: how it decides which line is a duplicate, what it keeps, and how it compares to a spreadsheet or command line.
- [Resize Zip File: What "Resize" Actually Means For a .zip](https://freetoolonline.com/guides/en/resize-zip-file.html) [lastmod=2026-07-06]
  "Resize zip file" usually means shrink the archive, sometimes split it, sometimes shrink the photos inside before re-zipping. Routing table + the right tool for each.
- [Retro Tank Battle vs Installing a Desktop Game](https://freetoolonline.com/guides/retro-tank-battle-vs-alternatives.html) [lastmod=2026-07-06]
  Retro Tank Battle in the browser vs an installed desktop game: 0 MB install, first shot in seconds, a price of $0 - and what installing still does better.
- [Reverse Text: When It Actually Helps](https://freetoolonline.com/guides/reverse-text-when.html) [lastmod=2026-07-06]
  When reversing text helps: palindrome checks, mirrored captions, simple ciphers, plus how it compares to a spreadsheet, rev, or a script.
- [Screen Test for Laptop - 5-Minute Checklist](https://freetoolonline.com/guides/en/screen-test-for-laptop-5-minute-checklist.html) [lastmod=2026-07-06]
  Five quick screen checks for a laptop you just bought or are about to return - dead pixels, brightness on battery vs AC, IPS shift, glare, scaling. Two minutes per check.
- [Screen test online vs app: which is more accurate?](https://freetoolonline.com/guides/en/screen-test-online-vs-app-which-is-more-accurate.html) [lastmod=2026-07-06]
  Browser screen tests catch panel defects (dead pixels, uniformity, bleed) in two minutes. Native apps reach refresh-rate, HDR, and ICC checks. Which to start with.
- [Screen test vs camera test - which one do you actually need?](https://freetoolonline.com/guides/en/screen-test-vs-camera-test-pick-the-right-tool.html) [lastmod=2026-07-06]
  Stuck pixels or backlight bleed: screen test. Webcam will not start or image is upside-down: camera test. Pick the right device-test tool on freetoolonline.com.
- [Screen Test vs LCD Test - Same Thing?](https://freetoolonline.com/guides/en/screen-display-test-synonyms.html) [lastmod=2026-07-06]
  Screen test, display test, monitor test - they all mean the same checks. Pick the right tool: LCD test for monitors, camera test for webcams.
- [Sky Gates Flight vs Installing a Flying Game App](https://freetoolonline.com/guides/sky-gates-flight-vs-alternatives.html) [lastmod=2026-07-06]
  Sky Gates Flight vs a typical installed flying game: 0 MB to install, seconds to first flight, and an honest look at where each side wins.
- [Sky Gates Flight: When It Fits and When It Does Not](https://freetoolonline.com/guides/sky-gates-flight-when.html) [lastmod=2026-07-06]
  Where Sky Gates Flight fits - short breaks, phones, shared computers, chasing a best run - and where it does not: arcade physics, not a flight simulator.
- [Snake Classic vs Installing a Desktop Game](https://freetoolonline.com/guides/snake-classic-vs-alternatives.html) [lastmod=2026-07-06]
  Snake Classic in the browser vs installing a desktop game - 0 MB install and seconds to first play, weighed honestly against offline play and sound.
- [Solar System 3D Explorer vs Installing an Astronomy App](https://freetoolonline.com/guides/solar-system-3d-explorer-vs-alternatives.html) [lastmod=2026-07-06]
  Solar System 3D Explorer vs an installed astronomy app - 0 MB install and a view in seconds, or deeper date-accurate skies on the desktop.
- [Sort Text Lines Step by Step: Alphabetize a List in Your Browser](https://freetoolonline.com/guides/sort-text-lines-step-by-step.html) [lastmod=2026-07-06]
  A step-by-step guide to the free Sort Text Lines tool: how to sort a list A-Z or Z-A, how the order is decided, and why numbers sort as text.
- [Speech To Text Step By Step](https://freetoolonline.com/guides/speech-text-step-by-step.html) [lastmod=2026-07-06]
  Speech To Text Step By Step - the exact steps to run Speech to Text from open to downloaded result.
- [Speech To Text Vs Alternatives](https://freetoolonline.com/guides/speech-text-vs-alternatives.html) [lastmod=2026-07-06]
  Speech To Text Vs Alternatives - how Speech to Text compares with a desktop app or an upload-based service.
- [Speech To Text When To Use](https://freetoolonline.com/guides/speech-text-when.html) [lastmod=2026-07-06]
  Speech To Text When To Use - when opening Speech to Text fits the job and what to expect when it does.
- [Split GIF Into Frames Online - extract every frame](https://freetoolonline.com/guides/en/split-gif-into-frames.html) [lastmod=2026-07-06]
  Split GIF Into Frames guide: extract every animation frame as a separate image, in your browser, no install. Step-by-step, free. Last reviewed 2026-05-14.
- [Split PDF Online Free](https://freetoolonline.com/guides/split-pdf-online-free.html) [lastmod=2026-07-06]
  Split a PDF online free: extract a page range into one new file, or break every page into its own PDF. No account, no install. Last reviewed 2026-06-14.
- [SVG to PNG - When to Rasterize](https://freetoolonline.com/guides/en/svg-to-png-when-to-rasterize-an-svg.html) [lastmod=2026-07-06]
  Most SVGs should stay vector. The exceptions: legacy software that does not parse SVG, social-share previews, email clients. When and how to rasterize cleanly.
- [Tes LCD: Cek Layar Dead Pixel Online - Free Tool Online](https://freetoolonline.com/guides/en/tes-lcd.html) [lastmod=2026-07-06]
  Tes LCD online: cek dead pixel, stuck pixel, dan backlight bleed dengan enam tampilan layar penuh (merah, hijau, biru, hitam, putih, kuning) di browser. Last reviewed: 2026-05-18.
- [Test Dead Pixels Before Returning a Monitor](https://freetoolonline.com/guides/en/how-to-test-for-dead-pixels-before-returning-a-monitor.html) [lastmod=2026-07-06]
  How to test for dead pixels before returning a monitor - full-screen color check, stuck vs dead pixels, warranty proof, and what manufacturers accept.
- [Test LCD: Pick the Right Screen-Test Tool](https://freetoolonline.com/guides/en/test-lcd.html) [lastmod=2026-07-06]
  Test LCD, LCD test, or LCD tester all map to one job: check your screen for dead pixels, color, and backlight in your browser. Pick the right tool here.
- [Text Repeater Step By Step](https://freetoolonline.com/guides/text-repeater-step-by-step.html) [lastmod=2026-07-06]
  Text Repeater Step By Step - the exact steps to run Text Repeater from open to downloaded result.
- [Text Repeater Vs Alternatives](https://freetoolonline.com/guides/text-repeater-vs-alternatives.html) [lastmod=2026-07-06]
  Text Repeater Vs Alternatives - how Text Repeater compares with a desktop app or an upload-based service.
- [Text Repeater When To Use](https://freetoolonline.com/guides/text-repeater-when.html) [lastmod=2026-07-06]
  Text Repeater When To Use - when opening Text Repeater fits the job and what to expect when it does.
- [Text To Speech Step By Step](https://freetoolonline.com/guides/text-speech-step-by-step.html) [lastmod=2026-07-06]
  Text To Speech Step By Step - the exact steps to run Text to Speech from open to downloaded result.
- [Text To Speech Vs Alternatives](https://freetoolonline.com/guides/text-speech-vs-alternatives.html) [lastmod=2026-07-06]
  Text To Speech Vs Alternatives - how Text to Speech compares with a desktop app or an upload-based service.
- [Text To Speech When To Use](https://freetoolonline.com/guides/text-speech-when.html) [lastmod=2026-07-06]
  Text To Speech When To Use - when opening Text to Speech fits the job and what to expect when it does.
- [Text vs Line vs Word vs Git Diff](https://freetoolonline.com/guides/en/text-diff-vs-line-diff-vs-word-diff-vs-git-diff.html) [lastmod=2026-07-06]
  Four kinds of diff answer different questions. Text diff for any pair, line diff for code, word diff for prose, git diff for tracked changes. Each explained.
- [Time in milliseconds: the unit, conversions, and the epoch value](https://freetoolonline.com/guides/en/time-in-ms.html) [lastmod=2026-07-06]
  A time in milliseconds is a number where 1 second equals 1000 ms. See the duration and epoch meanings, a conversion table, and where ms appears in code.
- [Unix Timestamps Explained](https://freetoolonline.com/guides/en/unix-timestamps-explained.html) [lastmod=2026-07-06]
  Unix timestamps explained - seconds vs milliseconds, ISO-8601, RFC 2822, UTC vs local time, and the common pitfalls when converting between formats.
- [Unlock Zip File Online - online guide](https://freetoolonline.com/guides/en/unlock-zip-file-online.html) [lastmod=2026-07-06]
  Unlock a ZIP file online: pick the route for password-protected ZIPs vs plain ZIPs, run the right tool free in your browser. Last reviewed 2026-05-20.
- [Unminify JS: Restore Readability of Minified JavaScript (Free Browser Tool)](https://freetoolonline.com/guides/en/unminify-js.html) [lastmod=2026-07-06]
  Unminify minified JavaScript online for free. Paste the bundle, get readable indented code with re-introduced line breaks - no install, browser-side. Last reviewed 2026-05-20.
- [Url Decoder Step By Step](https://freetoolonline.com/guides/url-decoder-step-by-step.html) [lastmod=2026-07-06]
  Url Decoder Step By Step - the exact steps to run URL Decoder from open to downloaded result.
- [Url Decoder Vs Alternatives](https://freetoolonline.com/guides/url-decoder-vs-alternatives.html) [lastmod=2026-07-06]
  Url Decoder Vs Alternatives - how URL Decoder compares with a desktop app or an upload-based service.
- [Url Decoder When To Use](https://freetoolonline.com/guides/url-decoder-when.html) [lastmod=2026-07-06]
  Url Decoder When To Use - when opening URL Decoder fits the job and what to expect when it does.
- [Video Converter Online Free: Convert to MP4, MOV, MP3 and More](https://freetoolonline.com/guides/video-converter-online-free.html) [lastmod=2026-07-06]
  Convert video online free to MP4, WebM, MOV, MP3 or WAV. Trim a segment first, no account needed. Server-side for large or long files.
- [Video To Gif Converter Step By Step](https://freetoolonline.com/guides/video-gif-converter-step-by-step.html) [lastmod=2026-07-06]
  Video To Gif Converter Step By Step - the exact steps to run Video to GIF Converter from open to downloaded result.
- [Video To Gif Converter Vs Alternatives](https://freetoolonline.com/guides/video-gif-converter-vs-alternatives.html) [lastmod=2026-07-06]
  Video To Gif Converter Vs Alternatives - how Video to GIF Converter compares with a desktop app or an upload-based service.
- [Video To Gif Converter When To Use](https://freetoolonline.com/guides/video-gif-converter-when.html) [lastmod=2026-07-06]
  Video To Gif Converter When To Use - when opening Video to GIF Converter fits the job and what to expect when it does.
- [Voxel World Builder vs Installing a Desktop Game](https://freetoolonline.com/guides/voxel-world-builder-vs-alternatives.html) [lastmod=2026-07-06]
  Voxel World Builder vs an installed desktop sandbox game: 0 MB install, price 0, first block in seconds - and the depth an installed game still wins on.
- [Webcam Mirror vs Flip Explained: Why Your Camera Preview Reverses Text](https://freetoolonline.com/guides/en/camera-mirror-vs-flip-explained.html) [lastmod=2026-07-06]
  Why your webcam preview reverses text and the saved video usually does not. 30-second proof procedure plus exact disable-mirror steps for OBS, Zoom, Google Meet, and Microsoft Teams.
- [What an LCD test actually checks](https://freetoolonline.com/guides/en/lcd-test-what-it-checks.html) [lastmod=2026-07-06]
  An LCD test scans for dead pixels, stuck pixels, color uniformity, and burn-in. What each check means and when to run one before warranty or return.
- [What an LCD Test Does (and When to Run One)](https://freetoolonline.com/guides/en/what-an-lcd-test-does-and-when-to-run-one.html) [lastmod=2026-07-06]
  What an LCD test actually checks (dead pixels, stuck pixels, backlight bleed, banding) - and when running one is the right move before keeping a screen.
- [What Is a File Compressor and Which to Use](https://freetoolonline.com/guides/en/what-is-a-file-compressor-and-which-to-use.html) [lastmod=2026-07-06]
  A "file compressor" is not one tool. Pick by file type: ZIP a folder, compress photos, convert HEIC, bundle PDFs, or use a transfer link.
- [When Snake Classic Fits - and When It Does Not](https://freetoolonline.com/guides/snake-classic-when.html) [lastmod=2026-07-06]
  The sessions Snake Classic fits - quick breaks, locked-down computers, beating your own record - and the times an installed game serves you better.
- [When the GPU Test Fits - and When It Does Not](https://freetoolonline.com/guides/gpu-test-webgl-benchmark-info-when.html) [lastmod=2026-07-06]
  Four concrete situations for the browser GPU test: quick capability checks, before-and-after comparisons, trend tracking - and where it honestly does not fit.
- [When to Play Garden Defense - and When to Skip It](https://freetoolonline.com/guides/garden-defense-when.html) [lastmod=2026-07-06]
  Garden Defense fits short browser breaks - no install, no account, runs end after five waves. See when it suits you and when an installed game is better.
- [When to Play Retro Tank Battle - and When Not To](https://freetoolonline.com/guides/retro-tank-battle-when.html) [lastmod=2026-07-06]
  Where Retro Tank Battle fits - quick arcade breaks on keyboard or touch - and where it does not: no sound, a single arena, and no multiplayer.
- [When to Use a Random List Shuffler](https://freetoolonline.com/guides/random-list-shuffler-when.html) [lastmod=2026-07-06]
  When a random list shuffler fits: turn order, task assignments, and seating charts - and when a single-pick tool is the better choice instead.
- [When to Use Black Hole 3D Visualizer - Best Sessions and Limits](https://freetoolonline.com/guides/black-hole-3d-visualizer-when.html) [lastmod=2026-07-06]
  The sessions the Black Hole 3D Visualizer fits - quick curiosity breaks, teaching, calm background visuals - and the jobs it honestly does not.
- [When to Use Galaxy 3D Simulator (and When Not To)](https://freetoolonline.com/guides/galaxy-3d-simulator-when.html) [lastmod=2026-07-06]
  Where Galaxy 3D Simulator fits - short screen breaks, curious kids, ambient fullscreen visuals - and the jobs this spiral honestly cannot do.
- [When to Use Solar System 3D Explorer (and When Not To)](https://freetoolonline.com/guides/solar-system-3d-explorer-when.html) [lastmod=2026-07-06]
  Where Solar System 3D Explorer fits - quiet screen breaks, homework visuals, quick planet facts - and the sessions where it is the wrong tool.
- [When to Use Voxel World Builder (and When Not To)](https://freetoolonline.com/guides/voxel-world-builder-when.html) [lastmod=2026-07-06]
  When a browser voxel sandbox fits: quick creative breaks, devices where you cannot install, builds you back up as JSON - and the sessions it does not cover.
- [Why HEIC Won't Open on Windows - Three Quick Fixes](https://freetoolonline.com/guides/en/why-heic-wont-open-on-windows-three-fixes.html) [lastmod=2026-07-06]
  When Windows says it can't open a .heic file, three quick fixes work: install the free HEIF photo extension, use a free viewer, or convert to JPG online.
- [Why MD5 Cannot Be Decrypted](https://freetoolonline.com/guides/en/why-md5-cannot-be-decrypted.html) [lastmod=2026-07-06]
  MD5 is a one-way hash, not encryption, so there is no decrypt key. What md5-decrypt tools actually do, why MD5 is unsafe for passwords, and what to use.
- [Word Counter Step by Step: Counting Words, Characters, and Reading Time](https://freetoolonline.com/guides/word-counter-step-by-step.html) [lastmod=2026-07-06]
  A step-by-step guide to the free Word Counter: what each of its six live numbers means, how reading time is estimated, and when to use it.
- [Yes or No Wheel: Step-by-Step Guide](https://freetoolonline.com/guides/yes-no-wheel-step-by-step.html) [lastmod=2026-07-06]
  How the Yes or No Wheel opens pre-set to Yes/No, how to turn it into a wheel for any other 2+ option decision, and how the spin stays fair.
- [Zip Compress - zip compress guide](https://freetoolonline.com/guides/en/zip-compress.html) [lastmod=2026-07-06]
  Zip compress guide: when ZIP shrinks files, when it does not, and how to bundle a folder into one archive online. Free, no install. Last reviewed 2026-05-18.
- [Zip Compressor Online - when it shrinks a folder and when it does not](https://freetoolonline.com/guides/en/zip-compressor-online.html) [lastmod=2026-07-06]
  An online zip compressor bundles a folder of files into one .zip. The size cut depends on input type - text shrinks, JPG/MP4 do not. Tool link inside.
- [Zip Compressor: Compress Files Into a Smaller ZIP Archive](https://freetoolonline.com/guides/en/zip-compressor.html) [lastmod=2026-07-06]
  A short reader-task guide to using a zip compressor: when to pick zip compression for a folder of files, what the resulting .zip archive does and does not preserve, and where the in-browser tool lives.
- [Zip File Compressor Online - Bundle and Shrink Folders into One ZIP](https://freetoolonline.com/guides/en/zip-file-compressor-online.html) [lastmod=2026-07-06]
  Zip file compressor online: bundle files or a whole folder into one .zip, set an optional password, and download. Free, in-browser, no install.
- [Zip File Converter - quick how-to guide](https://freetoolonline.com/guides/en/zip-file-converter.html) [lastmod=2026-07-06]
  Quick how-to for the zip file converter on freetoolonline.com. Compress folders and files into a ZIP archive online, free, no installs. Last reviewed 2026-05-19.
- [Zip File Converter - What It Actually Does](https://freetoolonline.com/guides/en/zip-file-converter-what-it-actually-does.html) [lastmod=2026-07-06]
  "Zip file converter" is the wrong search. ZIP is a container, not a format. Three real intents: bundle, extract, or compress images. Pick by intent in 30 seconds.
- [Zip File Size Compressor - Free Online Guide](https://freetoolonline.com/guides/en/zip-file-size-compressor.html) [lastmod=2026-07-06]
  Use a zip file size compressor online to bundle a folder of files into a single .zip and trim the total size before sending. Free, no install. Last reviewed 2026-05-19.
- [Zip Folder Online Free - zip folder online free guide](https://freetoolonline.com/guides/en/zip-folder-online-free.html) [lastmod=2026-07-06]
  Zip a folder online for free in the browser - drag it in, pick optional password, download the .zip. Step-by-step, no install. Last reviewed 2026-05-19.
- [Zip Password Recovery Online - what works (and what does not)](https://freetoolonline.com/guides/en/zip-password-recovery-online.html) [lastmod=2026-07-06]
  Zip password recovery online guide: what online unlockers can and cannot do, plus the three working paths when you have forgotten a ZIP password. Last reviewed 2026-05-18.
- [ZIP password types - strong vs weak, explained (when an online remover can help)](https://freetoolonline.com/guides/en/zip-password-types-strong-vs-weak-explained.html) [lastmod=2026-07-06]
  Before you upload a password-protected ZIP to /remove-zip-password.html, check the encryption type. Legacy ZIP 2.0 + a short or numeric password is recoverable in seconds. WinZip AES-256 with a strong password is not. A 30-second decision guide so you do not waste an upload.
- [ZIP password unlocker: when an online tool can remove a password (and when it cannot crack one)](https://freetoolonline.com/guides/en/zip-password-unlocker.html) [lastmod=2026-07-06]
  What ZIP password unlocker means online: remove a password you already know from a .zip archive; unknown passwords cannot be cracked. Reviewed 2026-05-18.
- [ZIP Size Reducer - When ZIP Compression Actually Shrinks Your Archive](https://freetoolonline.com/guides/en/zip-size-reducer.html) [lastmod=2026-07-06]
  A reader-task guide to using a ZIP size reducer: when ZIP compression actually saves space, when it does not, and where the in-browser ZIP creator lives. Last reviewed 2026-05-17.
- [Zip Unlocker Online: Use This When You Know the Password](https://freetoolonline.com/guides/en/zip-unlocker-online.html) [lastmod=2026-07-06]
  A "zip unlocker online" is the right tool only when you already know the password. Open the in-browser remover, enter the password, download the unlocked copy.
- [Zip vs Zipx vs Rar vs 7z, Explained](https://freetoolonline.com/guides/en/zip-vs-zipx-vs-rar-vs-7z-archive-formats-explained.html) [lastmod=2026-07-06]
  Four archive formats compared: which Windows opens by default, which compresses smallest, and which is worth a separate app. Plain-language guide.

### German guides (241)

- [100 HEIC-Fotos Zu JPG Konvertieren](https://freetoolonline.com/guides/de/how-to-convert-100-heic-photos-to-jpg.html) [lastmod=2026-07-06]
  Wie man mehr als 100 HEIC-Fotos im Browser ohne Upload zu JPG konvertiert. Batch-Workflow, Qualitaetseinstellungen, EXIF-Erhaltung und Windows/Mac-Pfade.
- [Aktuelle Millis: Den Aktuellen Unix-Zeitstempel in Millisekunden Anzeigen](https://freetoolonline.com/guides/de/current-millis.html) [lastmod=2026-07-06]
  Aktuelle Millis bedeutet, was Date.now() gerade jetzt zurückgibt - eine 13-stellige Ganzzahl, die Millisekunden seit der Unix-Epoche zählt. Wie man liest, kopiert und in ein lesbares Datum zurückkonvertiert.
- [Aktuelle Zeit in Millisekunden: den Live-Epoch-Wert lesen und richtig verwenden](https://freetoolonline.com/guides/de/current-time-in-milliseconds.html) [lastmod=2026-07-06]
  Lesen Sie die aktuelle Zeit in Millisekunden seit der Unix-Epoche im Browser, kopieren Sie für eine Logzeile oder API-Aufruf, und vermeiden Sie die 10-Stellen-vs-13-Stellen-Sekunde-vs-Millisekunde-Verwechslung.
- [Analoguhr Online: So Lesen Sie die Zeiger](https://freetoolonline.com/guides/de/analog-clock-step-by-step.html) [lastmod=2026-07-06]
  Sehen Sie, wie Stunden-, Minuten- und Sekundenzeiger die Zeit anzeigen, warum die Bewegung fliessend wirkt, und wo eine Live-Analoguhr nuetzlich ist.
- [Anleitung zum Pixelfehler-Test](https://freetoolonline.com/guides/de/dead-pixel-testing-guide.html) [lastmod=2026-07-06]
  Pixelfehler-Test-Anleitung - tote vs feststeckende vs heiße Pixel, Vollbild-Farbprüfungen, Wiederherstellungsschritte und wann ein Garantieaustausch des Monitors gerechtfertigt ist.
- [Base64 - Wann Verwenden Und Wann Nicht](https://freetoolonline.com/guides/de/base64-when-to-use-and-when-not-to.html) [lastmod=2026-07-06]
  Base64 macht Binaerdaten textsicher zu einem Groessenpreis von 33 Prozent. Richtig fuer Inline-Daten-URLs und kleine Symbole; falsch fuer Assets ueber einigen Kilobyte. Entscheidungsregeln.
- [Beschaedigte Zip-Datei Wiederherstellen - Optionen](https://freetoolonline.com/guides/de/recover-corrupt-zip-file-options.html) [lastmod=2026-07-06]
  Praktische Wege fuer ein Zip, das sich nicht oeffnen laesst: erneut herunterladen, teilweises Extrahieren, Reparaturwerkzeuge und wann aufgeben. Was funktioniert, was nicht, was zuerst probieren.
- [Bild zu Base64 - In HTML/CSS einbetten vs Bilddatei verlinken](https://freetoolonline.com/guides/de/image-to-base64-embed-in-html-vs-link.html) [lastmod=2026-07-06]
  Sollten Sie ein Bild als base64-Daten-URL in HTML/CSS einbetten oder die Bilddatei verlinken? Eine praktische Entscheidungsregel mit konkreten Byte-Schwellen, Cache- und HTTP/2-Trade-offs und einer 30-Sekunden-Sanity-Pruefung.
- [Bild Zuschneiden und Drehen: Rahmen waehlen, dann begradigen](https://freetoolonline.com/guides/de/crop-and-rotate-image.html) [lastmod=2026-07-06]
  Schneiden Sie ein Bild im Browser zu und drehen Sie es - waehlen Sie ein Seitenverhaeltnis-Preset oder ein freies Pixel-Rechteck, dann begradigen Sie mit 45-Grad-Schritten oder einem freien Winkel-Griff. Kostenlos, kein Upload.
- [Bildschirm online aufnehmen - Bildschirm, Kamera oder Mikrofon](https://freetoolonline.com/guides/de/how-to-record-your-screen-online.html) [lastmod=2026-07-06]
  Nehmen Sie Bildschirm, Kamera oder Mikrofon im Browser auf, machen Sie Gesichter unkenntlich und laden Sie als WebM oder MP4 herunter. Kein Upload, kein Konto.
- [Bildschirm-Test vs LCD-Test - dasselbe?](https://freetoolonline.com/guides/de/screen-display-test-synonyms.html) [lastmod=2026-07-06]
  Bildschirm-Test, Display-Test, Monitor-Test - alle bedeuten dieselben Pruefungen. Waehle das richtige Werkzeug: LCD-Test fuer Monitore, Kamera-Test fuer Webcams.
- [Bildschirmtest Fuer Laptop - 5-Minuten-Checkliste](https://freetoolonline.com/guides/de/screen-test-for-laptop-5-minute-checklist.html) [lastmod=2026-07-06]
  Fuenf schnelle Bildschirmpruefungen fuer einen Laptop, den Sie gerade gekauft haben oder zurueckgeben moechten - tote Pixel, Helligkeit Akku vs Netzteil, IPS-Verschiebung, Spiegelung, Skalierung. Zwei Minuten pro Pruefung.
- [Bildschirmtest online vs App: was ist genauer?](https://freetoolonline.com/guides/de/screen-test-online-vs-app-which-is-more-accurate.html) [lastmod=2026-07-06]
  Browserbasierte Bildschirmtests erkennen Panel-Defekte (tote Pixel, Gleichmaessigkeit, Backlight-Bleed) in zwei Minuten. Native Apps erreichen Refresh-Rate, HDR und ICC-Pruefungen. Welcher zuerst.
- [Bildschirmtest vs Kameratest - welchen brauchen Sie wirklich?](https://freetoolonline.com/guides/de/screen-test-vs-camera-test-pick-the-right-tool.html) [lastmod=2026-07-06]
  Festsitzende Pixel oder Lichthof: Bildschirmtest. Webcam startet nicht oder Bild steht auf dem Kopf: Kameratest. Waehlen Sie das richtige Geraete-Test-Werkzeug auf freetoolonline.com.
- [Bildwerkzeuge im Browser - Gelernte Lektionen](https://freetoolonline.com/guides/de/what-we-learned-running-free-in-browser-image-tools-for-100k-monthly-users.html) [lastmod=2026-07-06]
  Was wir gelernt haben, als wir kostenlose Bildwerkzeuge im Browser fuer 100.000 monatliche Nutzer betrieben - technische Entscheidungen, Nutzungsmuster und was uns ueberrascht hat.
- [Code online bearbeiten - kostenlos, im Browser](https://freetoolonline.com/guides/de/how-to-edit-code-online.html) [lastmod=2026-07-06]
  Bearbeite Code online direkt im Browser - Syntaxhervorhebung fuer 18 Sprachen, helle und dunkle Themes, Dateien oeffnen und speichern. Kein Upload.
- [Code-Beautifier Schritt fuer Schritt: JS, CSS, HTML und JSON](https://freetoolonline.com/guides/de/code-formatter-beautifier-step-by-step.html) [lastmod=2026-07-06]
  Schritt-fuer-Schritt-Anleitung zum Formatieren von JavaScript, CSS, HTML und JSON mit dem kostenlosen Code-Beautifier - was jede Sprache braucht und wann Sie stattdessen den JSON-Parser nutzen.
- [Countdown-Timer Online: Schritt-fuer-Schritt-Anleitung](https://freetoolonline.com/guides/de/countdown-timer-step-by-step.html) [lastmod=2026-07-06]
  Stellen Sie Minuten und Sekunden ein, starten Sie den Countdown, und sehen Sie genau, was passiert - und was nicht passiert - wenn er null erreicht.
- [CSS Minifier vs Compressor](https://freetoolonline.com/guides/de/css-minifier-vs-compressor.html) [lastmod=2026-07-06]
  CSS Minifier vs Compressor - Whitespace-Entfernung vs gzip/brotli-Komprimierung, was jeder spart, und die genaue Pipeline-Reihenfolge für die Produktionsauslieferung.
- [CSS Minifier vs Uglifier vs Tree-Shaking](https://freetoolonline.com/guides/de/css-minifier-vs-uglifier-vs-tree-shaking.html) [lastmod=2026-07-06]
  Drei Größenreduzierungstaktiken für ein Ziel. Minifier entfernt Whitespace, Uglifier benennt Symbole um, Tree-Shaking entfernt nicht genutzte Regeln. Wann sich jeder auszahlt.
- [CSS und JS fuer Cold Start minifizieren](https://freetoolonline.com/guides/de/how-to-minify-css-js-for-cloud-run-cold-start.html) [lastmod=2026-07-06]
  CSS und JS minifizieren, um Cloud-Run-Cold-Start und Cloudflare-Workers-Bundle-Groesse zu reduzieren. Tools, Build-Flags und gemessene Latenzeinsparungen.
- [CSS Unminifier vs Prettier: Wann Welches Verwenden (Verfentlichtes CSS Lesen Oder Quellcode Formatieren)](https://freetoolonline.com/guides/de/css-unminifier-vs-prettier-when-to-use-each.html) [lastmod=2026-07-06]
  Wann CSS Unminifier das richtige Tool ist, um veroeffentlichtes CSS schnell zu lesen, wann Prettier das richtige Tool ist, um Quellcode zu formatieren, den Sie committen werden, und was keines nach einem Tree-shaking-Build wiederherstellen kann.
- [CSV vs JSON - Wann Welches Datenformat Verwenden](https://freetoolonline.com/guides/de/csv-vs-json-data-formats.html) [lastmod=2026-07-06]
  CSV vs JSON Datenformate - wann Zeilen-und-Spalten vs strukturierte Objekte zu wählen sind, mit Parsing-, Größen- und Tooling-Kompromissen für 2026er Workflows.
- [Datei zu ZIP - Anleitung zum Online-Dateikompressor](https://freetoolonline.com/guides/de/file-to-zip.html) [lastmod=2026-07-06]
  Wie man eine Datei online in ein ZIP-Archiv umwandelt: wann ZIP die Datei wirklich verkleinert, wann nicht, und wo der Ersteller liegt.
- [Datei-Kompressor vs ZIP](https://freetoolonline.com/guides/de/file-compressor-vs-zip-what-to-pick.html) [lastmod=2026-07-06]
  "Datei-Kompressor" ist zu allgemein. Waehlen Sie nach Dateityp: einen Ordner ZIPpen, Fotos komprimieren, HEIC konvertieren, PDFs buendeln oder einen Transfer-Link fuer Video verwenden.
- [Datei-Kompressor: Auswahl nach Dateityp](https://freetoolonline.com/guides/de/file-compressor.html) [lastmod=2026-07-06]
  Kostenloser Datei-Kompressor, der das richtige Browser-Tool nach dem auswaehlt, was Sie haben: einen Ordner ZIPpen, Fotos komprimieren, HEIC konvertieren, PDFs buendeln oder einen Transfer-Link verwenden.
- [Dateikomprimierer Online: Einen Ordner ZIPpen vs Ein Bild Komprimieren](https://freetoolonline.com/guides/de/file-compressor-online-when-to-zip-vs-when-to-compress-image.html) [lastmod=2026-07-06]
  Routing-Leitfaden zur Dateikomprimierer-Frage: wann einen Ordner fuer den Transport ZIPpen vs wann ein einzelnes Bild komprimieren, um die Bytegroesse zu senken. 30-Sekunden-Regel, fuenf Schritte.
- [Daten online visualisieren - Diagramm aus Ihren Zahlen erstellen](https://freetoolonline.com/guides/de/how-to-visualize-data-online.html) [lastmod=2026-07-06]
  Verwandeln Sie Datenzeilen in ein Diagramm im Browser. Fuegen Sie CSV, JSON oder Label, Wert ein, waehlen Sie einen Diagrammtyp - ohne Upload und ohne Konto.
- [Digitaluhr Online: So Lesen Sie die Anzeige](https://freetoolonline.com/guides/de/digital-clock-step-by-step.html) [lastmod=2026-07-06]
  Sehen Sie, was die HH:MM:SS-Anzeige und die Datumszeile zeigen, wie oft sie aktualisieren, und wo eine grosse Digitaluhr im Browser nuetzlich ist.
- [Doppelte Zeilen Schritt fuer Schritt Entfernen: eine Liste im Browser Bereinigen](https://freetoolonline.com/guides/de/remove-duplicate-lines-step-by-step.html) [lastmod=2026-07-06]
  Eine Schritt-fuer-Schritt-Anleitung zum kostenlosen Tool Remove Duplicate Lines: was als Duplikat zaehlt, welche Zeile erhalten bleibt und der Vergleich mit einer Tabellenkalkulation oder der Kommandozeile.
- [Download-Link Erscheint Nicht Nach Konvertierung - 5 Behebungen](https://freetoolonline.com/guides/de/download-link-not-appearing-after-conversion-five-fixes.html) [lastmod=2026-07-06]
  Der Upload ist fertig, aber der Download-Link erschien nie? Fünf konkrete Ursachen und Behebungen für Online-Konverter-Tools - in der Reihenfolge der Wahrscheinlichkeit.
- [Eine ZIP-Datei kleiner komprimieren: wann das Archiv tatsaechlich schrumpft](https://freetoolonline.com/guides/de/compress-zip-file-to-smaller-size.html) [lastmod=2026-07-06]
  Praktische Anleitung, um ein ZIP-Archiv kleiner zu machen: welche Eingaben tatsaechlich schrumpfen, welche nicht, und das Browser-Werkzeug, das das Archiv erstellt. Zuletzt geprueft: 2026-05-17.
- [Einen Ordner fuer E-Mail komprimieren](https://freetoolonline.com/guides/de/how-to-compress-a-folder-for-email.html) [lastmod=2026-07-06]
  Komprimieren Sie einen Ordner fuer E-Mail in unter einer Minute. Schritt-fuer-Schritt fuer Windows und macOS, E-Mail-Groessen-Vorbehalte in 2026 und wann ein Passwort vor dem Teilen hinzufuegen.
- [Einheiten online umrechnen - kostenlos und ohne Anmeldung](https://freetoolonline.com/guides/de/how-to-convert-units-online.html) [lastmod=2026-07-06]
  Rechnen Sie Einheiten online kostenlos um: Laenge, Gewicht, Temperatur, Flaeche und Volumen. Alles im Browser, ohne Konto.
- [EXIF-Metadaten und Bildkomprimierung: Was Entfernt Wird](https://freetoolonline.com/guides/de/image-compression-and-exif-metadata-what-gets-stripped.html) [lastmod=2026-07-06]
  Das Komprimieren eines Bildes entfernt oft EXIF-Metadaten - GPS, Kamera, Zeitstempel. Was Encoder standardmaessig entfernen, wann man sie behaelt, und wann man sie absichtlich entfernt.
- [Farbe online auswaehlen - HEX, RGB und HSL](https://freetoolonline.com/guides/de/how-to-pick-a-color-online.html) [lastmod=2026-07-06]
  Waehlen Sie online eine Farbe und sehen Sie ihre HEX-, RGB- und HSL-Werte, passende Paletten und eine Kontrastpruefung - alles im Browser, ohne Konto.
- [FFmpeg Online vs Lokales FFmpeg - Wann Jedes Gewinnt](https://freetoolonline.com/guides/de/ffmpeg-online-vs-local-ffmpeg-when-each-wins.html) [lastmod=2026-07-06]
  FFmpeg online (Browser-Wasm) vs lokales FFmpeg-CLI - Groessenlimits, Datenschutz, Geschwindigkeit und Codec-Abdeckung. Wann welches fuer Video/Audio-Verarbeitung waehlen.
- [FFmpeg Online vs Video Converter - Welches Tool oeffnen](https://freetoolonline.com/guides/de/ffmpeg-online-vs-video-converter-which-to-pick.html) [lastmod=2026-07-06]
  Routing-Leitfaden fuer die "ffmpeg online"-Aufgabe: wann FFmpeg Online oeffnen und wann die formatspezifische Route Video Converter oder GIF Maker schneller ist. Fuenf Routing-Regeln, eine Entscheidung in 30 Sekunden.
- [FFmpeg-Online-Konvertierung Hängt? Drei Behebungen (und 30-Sekunden-Test)](https://freetoolonline.com/guides/de/ffmpeg-online-conversion-stalled-three-fixes.html) [lastmod=2026-07-06]
  FFmpeg-Konvertierung hängt? Drei häufige Ursachen - Browser-Speichergrenze, Hintergrund-Tab, nicht unterstützter Codec - jede mit Behebung und 30-Sekunden-Test.
- [Foto-Editor vs Grafik-App vs Batch](https://freetoolonline.com/guides/de/photo-editor-vs-graphics-app-vs-batch-processor.html) [lastmod=2026-07-06]
  Drei Bildtool-Kategorien loesen drei verschiedene Probleme. Foto-Editor fuer ein Bild, Grafik-App fuer Design, Batch-Processor fuer viele Dateien gleichzeitig.
- [Frames aus einem GIF Extrahieren](https://freetoolonline.com/guides/de/how-to-extract-frames-from-a-gif-for-a-social-post.html) [lastmod=2026-07-06]
  Wie man Frames aus einem GIF fuer einen Social-Post extrahiert - einen Hero-Frame waehlen, Transparenz erhalten und ein statisches Bild ausliefern, das schnell laedt.
- [Frontkamera-Test - Pruefe deine Selfie-Kamera online](https://freetoolonline.com/guides/de/front-camera-test.html) [lastmod=2026-07-06]
  Frontkamera-Test online: oeffne die Selfie-Linse, sieh eine Live-Vorschau, wechsle zwischen vorne und hinten und nimm ein JPEG auf - alles im Browser. Zuletzt geprueft 2026-06-10.
- [Geräte-Test-Checkliste für Remote-Arbeit (2026)](https://freetoolonline.com/guides/de/device-test-checklist-for-remote-work.html) [lastmod=2026-07-06]
  Führen Sie die 8-Punkte-Geräte-Test-Checkliste vor Ihrem nächsten Remote-Meeting durch. Kamera, Mic, LCD, Tastatur - 60-Sekunden-Schnellpfad oder 5-Minuten-Vollpfad, keine Installation.
- [GIF in Einzelbilder Aufteilen Online - jedes Animationsbild extrahieren](https://freetoolonline.com/guides/de/split-gif-into-frames.html) [lastmod=2026-07-06]
  Anleitung GIF in Einzelbilder aufteilen: extrahieren Sie jedes Animationsbild als separates Bild, im Browser, ohne Installation. Schritt fuer Schritt, kostenlos. Zuletzt geprueft 2026-05-14.
- [GIF in Frames: Jeden Animations-Frame als PNG oder JPG speichern](https://freetoolonline.com/guides/de/gif-into-frames.html) [lastmod=2026-07-06]
  Verwandeln Sie ein GIF online in einzelne Frames. Laden Sie die Animation hoch, waehlen Sie PNG oder JPG und laden Sie jeden Frame als Standbild herunter. Kostenlos, ohne Installation. Zuletzt geprueft: 2026-05-20.
- [GIF zu Einzelbildern konvertieren - Jeden Frame als PNG oder JPG exportieren](https://freetoolonline.com/guides/de/gif-to-frames-converter.html) [lastmod=2026-07-06]
  Konvertiere ein animiertes GIF in Einzelbilder. Hochladen, PNG oder JPG waehlen und jeden Frame als separates Bild herunterladen. Keine Installation. Geprueft 2026-06-10.
- [GIF zu Frame - jeden Frame als PNG oder JPG extrahieren](https://freetoolonline.com/guides/de/gif-to-frame.html) [lastmod=2026-07-06]
  GIF animiert hochladen und jeden Frame als PNG oder JPG extrahieren. Keine Installation. Dateien werden automatisch geloescht. Zuletzt geprueft 2026-06-10.
- [GIF-Frame-Extraktor - Frames aus animierten GIFs holen](https://freetoolonline.com/guides/de/gif-frame-extractor.html) [lastmod=2026-07-06]
  Schritt-fuer-Schritt-Anleitung zum Extrahieren von Frames aus animierten GIFs: PNG oder JPG, FPS einstellen, jedes Frame laden. Zuletzt geprueft 2026-05-14.
- [GIF-Frame-Extraktor-Ausgabe sieht falsch aus? Drei Ursachen und 30-Sekunden-Test](https://freetoolonline.com/guides/de/gif-frame-extractor-output-looks-wrong-three-causes.html) [lastmod=2026-07-06]
  GIF-Frame-Extraktor lieferte einen Frame, leere Frames oder seltsame Farben? Drei Ursachen - statisches GIF, do-not-dispose Disposal-Modus, Speicherlimit - jeweils mit einer Loesung.
- [GIF-Frames Extrahieren: PNG oder JPG, Welches Format Wählen?](https://freetoolonline.com/guides/de/extract-gif-frames-png-vs-jpg-which-format.html) [lastmod=2026-07-06]
  PNG bewahrt den Alpha-Kanal und ist verlustfrei zum Bearbeiten; JPG ist kleiner und ideal für Miniaturen. Wann jedes beim Extrahieren von GIF-Frames wählen.
- [GIF-Frames vs GIF-Framerate (FPS): Welches Brauchen Sie Tatsaechlich?](https://freetoolonline.com/guides/de/gif-frames-extract-vs-frame-rate-fps-explained.html) [lastmod=2026-07-06]
  GIF-Frames sind die Standbilder in einem animierten GIF; die GIF-Framerate (FPS) ist die Abspielgeschwindigkeit. Dieser Leitfaden sagt Ihnen, welches zu Ihrer Aufgabe passt, in einem Satz, und wie man die richtige FPS beim Extrahieren von Frames waehlt.
- [HD-Online-Video-Konverter - Schritt fuer Schritt](https://freetoolonline.com/guides/de/hd-video-converter-step-by-step.html) [lastmod=2026-07-06]
  Schritt-fuer-Schritt-Anleitung zum Konvertieren von HD-Video im Browser - Format aendern oder Audio extrahieren mit FFmpeg.wasm, ohne Upload und ohne Installation.
- [HD-Online-Video-Konverter - wann verwenden](https://freetoolonline.com/guides/de/hd-video-converter-when.html) [lastmod=2026-07-06]
  HD-Online-Video-Konverter Wann Verwenden - Schnellreferenz gepaart mit HD-Online-Video-Konverter.
- [HD-Online-Video-Konverter vs Alternativen](https://freetoolonline.com/guides/de/hd-video-converter-vs-alternatives.html) [lastmod=2026-07-06]
  HD-Online-Video-Konverter Vs Alternativen - Schnellreferenz gepaart mit HD-Online-Video-Konverter.
- [HEIC vs JPG Konverter](https://freetoolonline.com/guides/de/heic-vs-jpg-converter-when-each-wins.html) [lastmod=2026-07-06]
  Wann HEIC zu JPG konvertieren, wann das HEIC-Original behalten und wann kein Pfad gewinnt. Entscheidungsregeln fuer iCloud-Sync, Windows-Empfaenger und Bearbeitung.
- [HEIC vs JPG vs WebP](https://freetoolonline.com/guides/de/heic-vs-jpg-vs-webp.html) [lastmod=2026-07-06]
  iPhone-Fotos sind HEIC; Windows und Android erwarten JPG. Was jedes Format gut komprimiert, wann WebP die richtige Wahl fuer das Web ist und wie zwischen ihnen konvertiert wird.
- [HEIC zu JPG: was der Konverter tatsaechlich tut](https://freetoolonline.com/guides/de/heic-to-jpg-claims-what-actually-works.html) [lastmod=2026-07-06]
  Wie /heic-to-jpg.html tatsaechlich funktioniert: libheif-Dekodierung, JPG-Re-Codierung, EXIF + Qualitaetssteuerung, plus die Behauptungen, die das Tool NICHT macht. Vor dem Hochladen lesen.
- [ImageMagick Online vs Spezialwerkzeuge - Welches Waehlen](https://freetoolonline.com/guides/de/imagemagick-online-vs-task-specific-tools-which-to-pick.html) [lastmod=2026-07-06]
  Routing-Anleitung: wann ImageMagick Online zu oeffnen und wann ein Spezialwerkzeug (Crop, Resize, Compress, HEIC to JPG) der schnellere Weg ist. Fuenf Regeln, eine Entscheidung in 30 Sekunden.
- [iPhone-Fotoformat erklaert](https://freetoolonline.com/guides/de/iphone-photo-format-explained-heic-jpg-png-raw.html) [lastmod=2026-07-06]
  iPhone-Fotos koennen HEIC, JPG, PNG oder RAW sein. Hier ist, was jedes Format ist, wann iOS es verwendet, und das richtige, in das man vor dem Teilen ausserhalb von Apple konvertieren sollte.
- [Ist diese lange Zahl ein Zeitstempel? Millisekunden vs Sekunden](https://freetoolonline.com/guides/de/long-number-millisecond-or-second.html) [lastmod=2026-07-06]
  Eine eingefuegte 10-, 13-, 16- oder 19-stellige Zahl kann Unix-Sekunden, Millisekunden, Mikrosekunden, Nanosekunden oder einfach eine ID sein - so erkennen Sie es schnell.
- [Ja-oder-Nein-Rad Online: Schritt-fuer-Schritt-Anleitung](https://freetoolonline.com/guides/de/yes-no-wheel-step-by-step.html) [lastmod=2026-07-06]
  Wie das Yes or No Wheel startbereit auf Ja/Nein steht, wie Sie es in ein Rad fuer jede Entscheidung mit 2+ Optionen verwandeln, und wie die Drehung fair bleibt.
- [JPEG Ohne Qualitätsverlust Komprimieren: Qualität vs Größe](https://freetoolonline.com/guides/de/compress-jpeg-without-losing-quality-quality-vs-size.html) [lastmod=2026-07-06]
  Wählen Sie die richtige JPEG-Qualitätseinstellung: wann 75 identisch zum Original aussieht, wann 95 Bytes verschwendet, und wann die KI-Auto-Komprimierung beides schlägt.
- [JPG vs JPEG - sind sie dasselbe?](https://freetoolonline.com/guides/de/jpg-vs-jpeg-are-they-the-same.html) [lastmod=2026-07-06]
  JPG und JPEG sind dasselbe Bildformat. Die beiden Erweiterungen existieren wegen einer alten Drei-Buchstaben-Beschraenkung von Windows. Hier ist die Geschichte und welcher Name zu bevorzugen ist.
- [JPG vs PNG fuer das Web](https://freetoolonline.com/guides/de/jpg-vs-png-for-web.html) [lastmod=2026-07-06]
  JPG vs PNG fuer Web-Bilder - wann verlustbehaftete Komprimierung gewinnt, wann verlustfrei + Transparenz wichtig ist und wie WebP die Rechnung 2026 veraendert.
- [JS Entminifizieren: Lesbarkeit Minifizierten JavaScripts Wiederherstellen (Kostenloses Browser-Werkzeug)](https://freetoolonline.com/guides/de/unminify-js.html) [lastmod=2026-07-06]
  Minifiziertes JavaScript online kostenlos entminifizieren. Bundle einfuegen, eingerueckten Code mit wiederhergestellten Zeilenumbruechen erhalten - keine Installation, browserseitig. Zuletzt geprueft 2026-05-20.
- [JSON vs YAML vs TOML, Erklaert](https://freetoolonline.com/guides/de/json-vs-yaml-vs-toml-config-formats-explained.html) [lastmod=2026-07-06]
  Drei Konfigurationsformate, drei Ergonomien. JSON fuer Maschinen, YAML fuer Menschen, TOML fuer flache Konfiguration. Die Kompromisse, die entscheiden, was Ihr Projekt braucht.
- [JSON-Formatter online - Schritt fuer Schritt](https://freetoolonline.com/guides/de/json-formatter-step-by-step.html) [lastmod=2026-07-06]
  JSON-Formatter Online Schritt Fuer Schritt - Schnellreferenz gepaart mit JSON-Formatter Online.
- [JSON-Formatter online - wann verwenden](https://freetoolonline.com/guides/de/json-formatter-when.html) [lastmod=2026-07-06]
  JSON-Formatter Online Wann Verwenden - Schnellreferenz gepaart mit JSON-Formatter Online.
- [JSON-Formatter online vs Alternativen](https://freetoolonline.com/guides/de/json-formatter-vs-alternatives.html) [lastmod=2026-07-06]
  JSON-Formatter Online Vs Alternativen - Schnellreferenz gepaart mit JSON-Formatter Online.
- [JSON-Parser Online: Validieren vs Formatieren vs Baumansicht - Welche Funktion Brauchen Sie](https://freetoolonline.com/guides/de/json-parser-validate-vs-format-vs-tree-view.html) [lastmod=2026-07-06]
  JSON validieren, formatieren oder erkunden? Eine 30-Sekunden-Anleitung zur Auswahl der richtigen Unterfunktion des kostenlosen JSON-Parsers auf freetoolonline.com - im Browser.
- [Kamera-Check - Was es Bedeutet und Welches Tool zu Verwenden](https://freetoolonline.com/guides/de/camera-check.html) [lastmod=2026-07-06]
  Kamera-Check ist das alltägliche Synonym für "Kamera-Test": der Browser-Workflow, der das Betriebssystem nach dem Webcam-Feed fragt, eine Live-Vorschau zeigt und bestätigt, dass die Linse offen ist.
- [Kamera-Test vs Webcam-Test vs Kamera-Qualität - welcher?](https://freetoolonline.com/guides/de/camera-test-vs-webcam-test-which-do-you-need.html) [lastmod=2026-07-06]
  Drei Namen, drei verschiedene Prüfungen. Kamera-Test = Telefon-Front/Rück-Hardware. Webcam-Test = Laptop/Desktop-Kamera + Berechtigungen. Qualitäts-Test = Fokus, Belichtung, Farbe, Rauschen. Welcher wann.
- [Kamera-Test zeigt schwarzen Bildschirm: 4 Loesungen, die funktionieren](https://freetoolonline.com/guides/de/camera-test-shows-black-screen-four-fixes.html) [lastmod=2026-07-06]
  Kamera-Test zeigt ein schwarzes Rechteck? Vier Ursachen - Berechtigung, OS-Stummschaltung, virtuelle Kamera-Sperre, Datenschutzblende - und eine Ein-Minuten-Loesung fuer jede davon.
- [Kamera-Test-Berechtigung Blockiert: Wie Sie Kamerazugriff in Ihrem Browser Erlauben](https://freetoolonline.com/guides/de/camera-test-permission-blocked-how-to-allow-it.html) [lastmod=2026-07-06]
  Kamera-Test zeigt nichts oder fragt nicht nach Berechtigung? Webcam-Zugriff in Chrome, Firefox, Safari und Edge erlauben - der genaue Klickpfad pro Browser, plus wie blockiert vs ignoriert aussieht.
- [KI-Hintergrundentferner - Schritt-fuer-Schritt-Anleitung](https://freetoolonline.com/guides/de/ai-background-remover-step-by-step.html) [lastmod=2026-07-06]
  Hintergrund in drei Schritten entfernen mit dem KI-Hintergrundentferner. Alles im Browser, kein Upload.
- [KI-Hintergrundentferner - Wann Verwenden](https://freetoolonline.com/guides/de/ai-background-remover-when.html) [lastmod=2026-07-06]
  Wann den KI-Hintergrundentferner im Browser verwenden. Lokale Verarbeitung, kein Upload, kein Konto noetig.
- [KI-Hintergrundentferner vs Alternativen](https://freetoolonline.com/guides/de/ai-background-remover-vs-alternatives.html) [lastmod=2026-07-06]
  Vergleich des KI-Hintergrundentferners mit Desktop-Anwendungen und Online-Diensten. Datenschutz, offline, kein Konto.
- [Komprimieren vs Konvertieren eines Bildes](https://freetoolonline.com/guides/de/when-to-compress-vs-convert-an-image.html) [lastmod=2026-07-06]
  Bild komprimieren oder konvertieren? Antwort in 30 Sekunden - Entscheidungsregeln fuer Dateigroesse, Formatwahl, Qualitaets-Kompromisse und das richtige Werkzeug fuer jeden Job.
- [Komprimiertes JPG Sieht Unscharf Aus? Drei Ursachen (und Schnelle Behebungen)](https://freetoolonline.com/guides/de/compressed-jpg-looks-blurry-three-causes.html) [lastmod=2026-07-06]
  JPG sieht nach Komprimierung unscharf aus? Drei häufige Ursachen - zu niedrige Qualität, wiederholte Neukodierungen, hochskalierte Quelle - jede mit einer schnellen Behebung.
- [Kostenlose Online-Tools - kein Upload erforderlich](https://freetoolonline.com/guides/de/free-online-tools-that-work-without-uploading-files.html) [lastmod=2026-07-06]
  Wie browserbasierte Tools Dateien konvertieren, komprimieren und bearbeiten, ohne sie jemals hochzuladen. Der technische Grund warum es funktioniert, die Grenzen und die Privatsphaere, die Sie gratis bekommen.
- [Kostenloser Online-Fotoeditor - Zuschneiden, Skalieren, Filtern im Browser](https://freetoolonline.com/guides/de/photo-editor-online-pixlr.html) [lastmod=2026-07-06]
  Kostenloser Fotoeditor im Browser: zuschneiden, skalieren, Filter und Text, kein Upload, kein Konto. Fotos online bearbeiten. Last reviewed 2026-07-02.
- [LCD testen: Waehle das richtige Bildschirmtest-Werkzeug](https://freetoolonline.com/guides/de/test-lcd.html) [lastmod=2026-07-06]
  LCD testen, LCD-Test oder LCD-Tester sind alle Abbildungen eines Jobs: pruefe deinen Bildschirm auf tote Pixel, Farbe und Hintergrundbeleuchtung im Browser. Waehle hier das richtige Werkzeug.
- [LCD-Bildschirmtest - Online-Anleitung](https://freetoolonline.com/guides/de/lcd-screen-test.html) [lastmod=2026-07-06]
  LCD-Bildschirmtest-Anleitung: Fuehren Sie eine kostenlose Pixel- und Farbgleichmaessigkeitspruefung im Browser durch. Schritt fuer Schritt, ohne Installation. Zuletzt geprueft: 2026-05-20.
- [LCD-Pruefer: Kostenlose Online-Bildschirmpruefung im Browser durchfuehren](https://freetoolonline.com/guides/de/lcd-checker.html) [lastmod=2026-07-06]
  lcd-pruefer, lcd-check, monitor-pruefer - eine Aufgabe: das Panel durch vollbildige Solid-Farben durchlaufen, um tote Pixel, Hintergrundbeleuchtungs-Bleeding und Farbstich zu erkennen. Kostenlos und im Browser.
- [LCD-Test - Anleitung fuer den LCD-Bildschirmtest](https://freetoolonline.com/guides/de/lcd-test-online.html) [lastmod=2026-07-06]
  LCD-Test-Anleitung: So testen Sie Ihr LCD-Display online und kostenlos im Browser. Schritt fuer Schritt, ohne Installation. Zuletzt geprueft: 2026-05-13.
- [LCD-Test fuer Laptop-Bildschirme - Pixelfehler- und Farbpruefung](https://freetoolonline.com/guides/de/lcd-test-laptop.html) [lastmod=2026-07-06]
  Pruefe ein Laptop-LCD auf tote Pixel, festsitzende Pixel und Backlight-Bleeding - wechsle Rot, Gruen, Blau, Schwarz und Weiss im Vollbild in deinem Browser durch.
- [LCD-Test vs Display-Test vs Monitortest - welcher?](https://freetoolonline.com/guides/de/lcd-test-vs-display-test-which-do-you-need.html) [lastmod=2026-07-06]
  Drei Namen, drei verschiedene Pruefungen. LCD-Test = Panel-Pixel und Gleichmaessigkeit. Display-Test = Panel + Signalweg. Monitortest = Panel + Signal + Ports + Skalierung. Welcher wann auszufuehren ist und das richtige Tool zum Starten.
- [LCD-Test: Bildschirm Dead Pixel Online Pruefen - Free Tool Online](https://freetoolonline.com/guides/de/tes-lcd.html) [lastmod=2026-07-06]
  LCD-Test online: pruefen Sie Dead Pixel, Stuck Pixel und Backlight Bleed mit sechs Vollbild-Farben (Rot, Gruen, Blau, Schwarz, Weiss, Gelb) im Browser. Last reviewed: 2026-05-18.
- [LED-Test vs LCD-Test: Welcher Trifft Auf Ihren Bildschirm Zu?](https://freetoolonline.com/guides/de/led-test-vs-lcd-test-which-applies-to-your-screen.html) [lastmod=2026-07-06]
  LED ist die Hintergrundbeleuchtung; LCD ist das Panel. Bei fast jedem modernen Bildschirm bedeuten beide Namen dieselbe Hardware - ein Vollbild-Farbzyklus beantwortet beide Anfragen.
- [LED-Test: So testen Sie den Bildschirm eines Laptops oder Telefons](https://freetoolonline.com/guides/de/led-test.html) [lastmod=2026-07-06]
  Testen Sie Ihren LED-Bildschirm auf festsitzende Pixel, tote Pixel und Hintergrundbeleuchtungs-Lichthof. Malen Sie sechs Vollbild-Farben im Browser. Ohne Installation, kostenlos.
- [MD5 Dekodieren: was Leser meist meinen und wohin als Naechstes](https://freetoolonline.com/guides/de/md5-decode.html) [lastmod=2026-07-06]
  MD5-Dekodierungs-Leitfaden: MD5 ist einseitig, also bedeutet "dekodieren" meist einen Hash zu erzeugen, einen bekannten Klartext nachzuschlagen oder einen anderen Hash zu waehlen. Routen zum richtigen Werkzeug.
- [MD5 online entschluesseln: warum es nicht geht, und der praktische Umweg](https://freetoolonline.com/guides/de/md5-decrypt-online.html) [lastmod=2026-07-06]
  MD5 ist einseitig - kann nicht entschluesselt werden. Hier ist, was "MD5 online entschluesseln" tatsaechlich bedeutet und der sichere Weg, bekannte MD5-Hashes nachzuschlagen. Zuletzt geprueft 2026-05-18.
- [MD5 vs SHA-256 - Wann Welches Verwenden](https://freetoolonline.com/guides/de/md5-vs-sha256-when-to-hash.html) [lastmod=2026-07-06]
  MD5 vs SHA-256 - Geschwindigkeit, Kollisionsresistenz und konkrete Anwendungsfaelle. Wann Fingerprinting ausreicht, wann kryptografische Staerke wichtig ist.
- [MD5 zu Text - warum Sie es nicht zurueckkonvertieren koennen (und was zu tun ist)](https://freetoolonline.com/guides/de/md5-to-text-why-you-cannot-convert-back.html) [lastmod=2026-07-06]
  Eine 32-Zeichen-MD5-Zeichenkette ist ein Einweg-Fingerabdruck - sie kann nicht zurueck in den Text konvertiert werden, der sie erzeugt hat. Diese Anleitung erklaert warum und gibt die drei Aktionen, die tatsaechlich funktionieren: eine bekannte Zeichenkette verifizieren, einen Common-Input-Hash nachschlagen, oder einen anderen Hash fuer die Aufgabe waehlen.
- [MD5-Alternativen: bcrypt, Argon2id, SHA-256](https://freetoolonline.com/guides/de/md5-alternatives-bcrypt-argon2id-sha256-when-each-fits.html) [lastmod=2026-07-06]
  MD5 ist falsch fuer Passwoerter und gegnerische Integritaet. Waehlen Sie bcrypt oder Argon2id fuer Passwoerter, HMAC-SHA-256 fuer MAC, SHA-256 fuer Integritaet.
- [MD5-Entschluesseler - Rueckwaertssuche und Hash-Generator Online](https://freetoolonline.com/guides/de/md5-decrypter.html) [lastmod=2026-07-06]
  Nutze das kostenlose MD5-Tool, um Hashes zu erstellen, Pruefsummen zu vergleichen oder einen bekannten Wert nachzuschlagen. Laeuft im Browser - kein Upload, kein Konto.
- [MD5-Hash Entschluesseln: Wann Lookup Funktioniert, Wann Nicht](https://freetoolonline.com/guides/de/md5-hash-decrypt.html) [lastmod=2026-07-06]
  MD5-Hash entschluesseln - die praktische Frage. Reverse-Lookup funktioniert fuer kurze, haeufige Eingaben, die in Rainbow-Tables und Woerterbuechern stehen; fuer zufaellige Geheimnisse ist Brute-Force der Boden.
- [MD5-Hashes Richtig Lesen und Vergleichen: Gross-Klein, Leerzeichen, Hex-Format](https://freetoolonline.com/guides/de/read-and-compare-md5-hashes-correctly.html) [lastmod=2026-07-06]
  Zwei MD5-Hashes stimmen ueberein, wenn ihre 32 Hex-Zeichen nach Kleinschreibung und Entfernen der Leerzeichen identisch sind. Durchlaufen Sie die 4 kosmetischen Unterschiede und die echten.
- [MD5-Hashing im Browser - was Aufrufe wie `common::md5::gethash64string` tatsaechlich tun](https://freetoolonline.com/guides/de/common-md5-gethash64string.html) [lastmod=2026-07-06]
  MD5-Hashing erklaert fuer Leser, die nach Framework-Methodennamen suchen. Was ein MD5 zurueckgibt, wo die Cache-Rueckwaertssuche greift, und wann MD5 nicht zu verwenden ist.
- [MD5-Passwort: wie man ein Passwort hasht und wann MD5 falsch ist](https://freetoolonline.com/guides/de/md5-password.html) [lastmod=2026-07-06]
  MD5-Passwort-Leitfaden: fuegen Sie eine Passwort-Zeichenkette ein, erhalten Sie einen 32-Hex-Fingerabdruck und lernen, wann MD5 sicher fuer Pruefsummen ist und wann bcrypt oder argon2id die richtige Wahl ist.
- [Mehrere Dateien zu einer ZIP zusammenfuegen](https://freetoolonline.com/guides/de/how-to-zip-multiple-files-into-one.html) [lastmod=2026-07-06]
  Fuegen Sie mehrere Dateien zu einem einzigen ZIP-Archiv im Browser zusammen: auswaehlen, Ausgabe benennen, Kompressionslevel waehlen und herunterladen. Kein Upload oder Installation.
- [Mikrofon-Test Ohne Ton: 4 Loesungen Die Wirklich Funktionieren](https://freetoolonline.com/guides/de/microphone-test-no-sound-four-fixes.html) [lastmod=2026-07-06]
  Mikrofon-Test zeigt keinen Ton oder flache Wellenform? Vier Ursachen - Berechtigung, OS-Stummschaltung, App haelt das Geraet, Hardware-Stummschaltung - und je eine Ein-Minuten-Loesung.
- [Mikrofon-Test Online - Was Es Prueft](https://freetoolonline.com/guides/de/microphone-test-online-what-it-actually-checks.html) [lastmod=2026-07-06]
  Ein Mikrofon-Test im Browser bestaetigt, dass das Mikrofon ausgewaehlt ist, Ton einfaengt und der erwarteten Lautstaerke entspricht. Was es nicht pruefen kann und wo es weitergeht.
- [Mikrofon-Test-Berechtigung Blockiert: Wie Sie Mic-Zugriff In Ihrem Browser Erlauben](https://freetoolonline.com/guides/de/microphone-test-permission-blocked-how-to-allow-it.html) [lastmod=2026-07-06]
  Mikrofon-Test zeigt flache Pegelanzeige oder keine Berechtigungsaufforderung? Erlauben Sie Mic-Zugriff in Chrome, Firefox, Safari und Edge - der exakte Klickpfad pro Browser, plus wie blockiert vs ignoriert aussieht.
- [Mikrofon-Test-Pegel: Was Leise, Normal und Peak Bedeuten](https://freetoolonline.com/guides/de/microphone-test-online-quiet-normal-peak-meter.html) [lastmod=2026-07-06]
  Lesen Sie eine Browser-Mikrofon-Test-Pegelanzeige in einfacher Sprache: wie leise aussieht, was normales anrufbereites Audio ist, und wann Peaks Clipping bedeuten.
- [Millisekunde Zu Datum - eine Epoch-Millisekunde als Datum lesen](https://freetoolonline.com/guides/de/millisecond-to-date.html) [lastmod=2026-07-06]
  Fuegen Sie einen 13-stelligen Epoch-Millisekundenwert ein und lesen Sie ihn als menschliches Datum zurueck. Laeuft in Ihrem Browser, kein Upload, kein Konto. Zuletzt geprueft 2026-05-20.
- [Millisekunden in Datum umwandeln - Anleitung](https://freetoolonline.com/guides/de/convert-milliseconds-to-date.html) [lastmod=2026-07-06]
  Millisekunden in Datum umwandeln online: Fuegen Sie einen 13-stelligen Unix-Zeitstempel ein und lesen Sie das lokale Datum und die Uhrzeit. Kostenlos, nur im Browser, ohne Installation. Zuletzt geprueft: 2026-05-17.
- [Millisekunden zu Datum: UTC vs Ortszeit, warum es falsch aussehen kann](https://freetoolonline.com/guides/de/milliseconds-to-date-utc-vs-local-time.html) [lastmod=2026-07-06]
  Millisekunden-zu-Datum-Konvertierung: UTC vs Ortszeit, warum Ihr Ergebnis um Stunden danebenliegen kann, und wie Sie pruefen, welcher Wert korrekt ist. Im Browser, kostenlos.
- [MP4 vs MOV vs MKV - Welcher Container Wann](https://freetoolonline.com/guides/de/mp4-vs-mov-vs-mkv-which-container-when.html) [lastmod=2026-07-06]
  Drei Video-Container im Vergleich. MP4 fuer ueberall, MOV fuer die Apple-Pipeline, MKV fuer Archive mit mehreren Spuren. Klare Regeln zum Auswaehlen und Konvertieren.
- [MP4 vs WebM fuer das Web](https://freetoolonline.com/guides/de/mp4-vs-webm-for-web.html) [lastmod=2026-07-06]
  MP4 laeuft in jedem Browser; WebM ist in modernen Browsern 20-30 Prozent kleiner. Entscheidungsmatrix, Fallback-Muster und wann jeder Container den Aufwand wert ist.
- [MP4 zu GIF Online Kostenlos: Schneiden, Skalieren und ein animiertes GIF exportieren](https://freetoolonline.com/guides/de/mp4-to-gif-online-free.html) [lastmod=2026-07-06]
  Wandeln Sie einen MP4-Clip online kostenlos in ein animiertes GIF um: schneiden Sie ein Fenster von 3 bis 10 Sekunden zu, stellen Sie Breite und Framerate ein, dann herunterladen. Basiert auf dem Werkzeug GIF Maker.
- [ms zu Datum - 13-stelligen Millisekunden-Timestamp einfuegen, lokales Datum zurueck lesen](https://freetoolonline.com/guides/de/ms-to-date.html) [lastmod=2026-07-06]
  "ms zu Datum"-Leitfaden: fuegen Sie einen 13-stelligen Unix-Millisekunden-Timestamp ein und lesen Sie das passende lokale Datum + die 24-Stunden-Zeit zurueck. 10 Stellen? Erst mit 1000 multiplizieren.
- [Namens-Gluecksrad Online: Schritt-fuer-Schritt-Anleitung](https://freetoolonline.com/guides/de/wheel-spinner-wheel-names-step-by-step.html) [lastmod=2026-07-06]
  Start, Liste bearbeiten und auf Spin klicken - sehen Sie genau, wie das Rad einen Namen fair auswaehlt, bevor Sie es fuer Verlosungen oder Entscheidungen nutzen.
- [OLED-Test vs LCD-Test: Was Sich auf einem OLED-Panel Aendert](https://freetoolonline.com/guides/de/oled-test-vs-lcd-test-what-changes-on-oled.html) [lastmod=2026-07-06]
  OLED-Panels brauchen einen anderen Test als LCD: kein Backlight-Bleed zu suchen, aber Burn-in und Bildretention sind wichtig. Diese Anleitung erklaert, was sich aendert, wenn Ihr Bildschirm OLED ist.
- [Online Zip vs 7z vs Rar - welches waehlen](https://freetoolonline.com/guides/de/online-zip-vs-7z-vs-rar-which-to-pick.html) [lastmod=2026-07-06]
  Waehlen Sie das richtige Archivformat online: Zip fuer Kompatibilitaet, 7z fuer beste Kompression, Rar wenn Sie eines oeffnen muessen. Entscheidungsmatrix und Browser-Werkzeug-Routing.
- [Online ZIP-Datei-Kompressor - Anleitung](https://freetoolonline.com/guides/de/online-zip-file-compressor.html) [lastmod=2026-07-06]
  Anleitung fuer den Online-ZIP-Datei-Kompressor: Buendeln Sie Dateien oder einen ganzen Ordner zu einer .zip, setzen Sie ein optionales Passwort und laden Sie herunter. Kostenlos, im Browser, ohne Installation.
- [Online-Diff-Tool - Anleitung zum Vergleich zweier Texte nebeneinander](https://freetoolonline.com/guides/de/online-diff-tool.html) [lastmod=2026-07-06]
  Anleitung zum Online-Diff-Tool: zwei Textbloecke einfuegen und die hinzugefuegten, entfernten und geaenderten Zeilen nebeneinander im Browser lesen. Keine Installation, kein Upload.
- [Online-Muenzwurf: Schritt-fuer-Schritt-Anleitung](https://freetoolonline.com/guides/de/coin-flip-step-by-step.html) [lastmod=2026-07-06]
  Schritt-fuer-Schritt-Anleitung zu Coin Flip Online: werfen, Ergebnis lesen, und der Unterschied zum Wuerfelwurf und Namens-Gluecksrad.
- [Online-Sprachrekorder Schritt fuer Schritt](https://freetoolonline.com/guides/de/voice-recorder-step-by-step.html) [lastmod=2026-07-06]
  Online-Sprachrekorder Schritt fuer Schritt - die genauen Schritte zur Verwendung des Online Voice Recorder vom Start bis zum heruntergeladenen Ergebnis.
- [Online-Sprachrekorder Versus Alternativen](https://freetoolonline.com/guides/de/voice-recorder-vs-alternatives.html) [lastmod=2026-07-06]
  Online-Sprachrekorder versus Alternativen - ein Vergleich des browserbasierten Rekorders mit Desktop-Apps und Upload-Diensten.
- [Online-Stoppuhr: Schritt-fuer-Schritt-Anleitung](https://freetoolonline.com/guides/de/stopwatch-step-by-step.html) [lastmod=2026-07-06]
  Start, Lap, Stop und Reset - sehen Sie genau, was jede Steuerung tut und wie die Rundenliste funktioniert, bevor Sie etwas messen.
- [Online-Videokonverter Kostenlos: In MP4, MOV, MP3 und Mehr Umwandeln](https://freetoolonline.com/guides/de/video-converter-online-free.html) [lastmod=2026-07-06]
  Videos online kostenlos in MP4, WebM, MOV, MP3 oder WAV umwandeln. Segment zuschneiden, kein Konto noetig. Serverseitig fuer grosse oder lange Dateien.
- [Online-Wortzaehler: Schritt-fuer-Schritt-Anleitung](https://freetoolonline.com/guides/de/word-counter-step-by-step.html) [lastmod=2026-07-06]
  Eine Schritt-fuer-Schritt-Anleitung fuer den kostenlosen Word Counter: was jede der sechs Live-Zahlen bedeutet und wie die Lesezeit geschaetzt wird.
- [Online-Wuerfelwurf: Schritt-fuer-Schritt-Anleitung](https://freetoolonline.com/guides/de/dice-roller-step-by-step.html) [lastmod=2026-07-06]
  Schritt-fuer-Schritt-Anleitung zu Dice Roller Online: Wuerfelanzahl einstellen, Augen und Summe lesen, und der Unterschied zum Namens-Gluecksrad.
- [Online-ZIP-Werkzeug (kostenlos, Browser-Build-Service)](https://freetoolonline.com/guides/de/i-love-zip.html) [lastmod=2026-07-06]
  Online-ZIP-Werkzeug: verwandle einen Ordner oder eine Mehrfachauswahl in eine einzige .zip-Datei ueber einen privaten Build-Service. Kostenlos, ohne Installation, ohne Konto, Quelldateien werden automatisch geloescht.
- [Online-Zufallszahlengenerator: Schritt-fuer-Schritt-Anleitung](https://freetoolonline.com/guides/de/random-number-generator-step-by-step.html) [lastmod=2026-07-06]
  Schritt-fuer-Schritt-Anleitung zum Online-Zufallszahlengenerator: Min und Max einstellen, das Ergebnis lesen, und der Unterschied zu Dice Roller und Coin Flip.
- [Ordner Online Komprimieren - kostenlos, browserbasiert, keine Installation](https://freetoolonline.com/guides/de/compress-folder-online.html) [lastmod=2026-07-06]
  Wie man einen Ordner online komprimiert: Ordner ziehen, der Dienst bündelt eine .zip, herunterladen. Browserbasiert, keine Installation, optionales Passwort. Geprüft am 2026-05-24.
- [Ordner Online Kostenlos Zippen - Anleitung](https://freetoolonline.com/guides/de/zip-folder-online-free.html) [lastmod=2026-07-06]
  Zippen Sie einen Ordner online kostenlos im Browser - ziehen, optionales Passwort waehlen, .zip herunterladen. Schritt fuer Schritt, ohne Installation. Zuletzt geprueft: 2026-05-19.
- [Ordner Zu Zip: Wann Und Wie Man Einen Ordner Online Archiviert (Kostenlose Anleitung)](https://freetoolonline.com/guides/de/folder-to-zip.html) [lastmod=2026-07-06]
  Anleitung Ordner zu Zip: wann das Archivieren eines Ordners in eine einzige .zip tatsaechlich Platz spart, wie man das richtige Tool auswaehlt und wo der Browser-Ersteller lebt. Kostenlos, keine Installation.
- [Passwortgenerator Schritt fuer Schritt: ein Starkes Passwort im Browser Erstellen](https://freetoolonline.com/guides/de/password-generator-step-by-step.html) [lastmod=2026-07-06]
  Eine Schritt-fuer-Schritt-Anleitung zum kostenlosen Password Generator: Laenge einstellen, Zeichensaetze waehlen, Staerkeanzeige lesen und ein starkes zufaelliges Passwort kopieren - alles im Browser.
- [Passwortgenerator vs. Alternativen: Was Verwenden](https://freetoolonline.com/guides/de/password-generator-vs-alternatives.html) [lastmod=2026-07-06]
  Vergleichen Sie den browserbasierten Passwortgenerator mit eigener Eingabe, Browser oder Manager - welcher Ansatz liefert die staerksten und praktischsten Passwoerter.
- [Passwortgenerator: Wann Man Ihn Benutzt](https://freetoolonline.com/guides/de/password-generator-when.html) [lastmod=2026-07-06]
  Erfahren Sie, wann ein browserbasierter Passwortgenerator sinnvoll ist: Kontoerstellung, Passwortzuruecksetzung und jede Anmeldung, die einzigartige, unvorhersehbare Passwoerter erfordert.
- [PDF Online Kostenlos Komprimieren - PDF Verkleinern](https://freetoolonline.com/guides/de/compress-pdf-online-free.html) [lastmod=2026-07-06]
  Verkleinere eine PDF kostenlos online: reduziere formularlastige Dateien per Flatten oder baue gescannte PDFs mit unseren Werkzeugen neu auf. Kein Konto. Geprueft am 2026-06-11.
- [PDF Online Kostenlos Teilen](https://freetoolonline.com/guides/de/split-pdf-online-free.html) [lastmod=2026-07-06]
  PDF online kostenlos teilen: einen Seitenbereich in eine neue Datei extrahieren oder jede Seite in ein eigenes PDF aufteilen. Kein Konto, keine Installation. Zuletzt geprueft 2026-06-14.
- [PDF online kostenlos zusammenfuegen - PDFs im Browser kombinieren](https://freetoolonline.com/guides/de/merge-pdf-online-free-unlimited.html) [lastmod=2026-07-06]
  PDF-Dateien online kostenlos zusammenfuegen - mehrere PDFs zu einer kombinieren, vor dem Export neu sortieren, dann herunterladen. Die Browser-Option braucht keinen Upload und kein Konto.
- [PDF vs HEIC fuer Archivierung](https://freetoolonline.com/guides/de/pdf-vs-heic-for-document-archival.html) [lastmod=2026-07-06]
  PDF vs HEIC fuer die Dokumentenarchivierung - welches Format Quittungen, IDs und Formulare langfristig bewahrt. Groesse, Durchsuchbarkeit und Werkzeugunterstuetzung-Abwaegungen fuer 2026.
- [PDF zu Text Online: Text kostenlos extrahieren, ohne Installation](https://freetoolonline.com/guides/de/pdf-to-text-online-i-love-pdf.html) [lastmod=2026-07-06]
  Extrahiere Text aus einer PDF online, kostenlos und in deinem Browser. Kopiere oder lade das Ergebnis als .txt herunter. Funktioniert bei PDFs mit eingebettetem Text; gescannte Seiten brauchen zuerst OCR.
- [PDF-Bearbeitungsleiter - Waehlen Sie das Richtige PDF-Werkzeug](https://freetoolonline.com/guides/de/pdf-editing-ladder.html) [lastmod=2026-07-06]
  Entscheidungsleiter fuer PDF-Bearbeitung. Aufteilen, zusammenfuehren, extrahieren, schuetzen, glaetten, konvertieren - waehlen Sie das richtige Werkzeug nach Absicht in 30 Sekunden. 12 PDF-Werkzeuge dem Workflow zugeordnet.
- [PDF-Formular Online Ausfuellen - Ohne Hochladen](https://freetoolonline.com/guides/de/pdf-filler-form-editor-step-by-step.html) [lastmod=2026-07-06]
  Schritt-fuer-Schritt-Anleitung, um die Felder eines bestehenden PDF-Formulars online auszufuellen, direkt im Browser, ohne Hochladen und ohne Konto.
- [PDF-Passwort - Eigentuemer vs Benutzer](https://freetoolonline.com/guides/de/pdf-password-types-owner-vs-user.html) [lastmod=2026-07-06]
  PDF-Passworttypen - Eigentuemer- vs Benutzerpasswort, was jedes blockiert, wann jedes setzen, wie Passwoerter waehlen, die das Dokument wirklich schuetzen.
- [PDF-Preflight online: was es tatsaechlich prueft (und was nicht)](https://freetoolonline.com/guides/de/pdf-preflight-online-what-it-actually-checks.html) [lastmod=2026-07-06]
  Online-PDF-Preflight prueft die PDF/A-Archiv-Konformitaet - es behebt keine Probleme, zertifiziert keinen PDF/X-Druck und repariert keine beschaedigten PDFs. Der 30-Sekunden-Werkzeugauswahl-Leitfaden vor dem Hochladen.
- [PNG vs SVG - Wann Welches Verwenden](https://freetoolonline.com/guides/de/png-vs-svg-when-to-use.html) [lastmod=2026-07-06]
  PNG vs SVG - Raster vs Vektor, wann jedes fuer Logos, Icons, UI und Fotos waehlen, mit genauen Konvertierungspfaden und Performance-Kompromissen.
- [PNG zu SVG - wann ein Rasterbild vektorisieren](https://freetoolonline.com/guides/de/png-to-svg-when-to-vectorize-a-raster-image.html) [lastmod=2026-07-06]
  PNG zu SVG online - verfolgt Rasterpixel automatisch in Vektorpfade. Lesen Sie, wann Vektorisierung funktioniert (Logos, Icons, Strichgrafik) und wann nicht (Fotos).
- [Privaten KI-Chat im Browser ausfuehren - kostenlos, ohne Upload](https://freetoolonline.com/guides/de/how-to-run-a-private-ai-chat-in-your-browser.html) [lastmod=2026-07-06]
  Fuehre einen KI-Chatbot im Browser aus - das Modell laedt auf deinem Geraet, also bleiben Gespraeche privat, ohne Upload und ohne Konto. Erfordert WebGPU.
- [Prozentrechner im Vergleich zu Alternativen](https://freetoolonline.com/guides/de/percentage-calculator-vs-alternatives.html) [lastmod=2026-07-06]
  Prozentrechner vs Alternativen - wie sich Percentage Calculator im Vergleich zu einer Tabellenkalkulation oder einem Upload-basierten Online-Dienst schlaegt.
- [Prozentrechner Schritt fuer Schritt](https://freetoolonline.com/guides/de/percentage-calculator-step-by-step.html) [lastmod=2026-07-06]
  Prozentrechner Schritt fuer Schritt - die genauen Schritte, um Percentage Calculator vom Start bis zum Ergebnis zu nutzen.
- [QR-Code-Fehlerkorrektur und Scan-Ausfaelle](https://freetoolonline.com/guides/de/qr-code-error-correction-and-scan-failures.html) [lastmod=2026-07-06]
  Wenn ein QR-Code nicht scannt, ist die Ursache meist eines von vier: Payload-Groesse, Fehlerkorrekturstufe, Kontrast oder Druckskala. So finden und beheben Sie sie.
- [QR-Code-Generator - Best Practices](https://freetoolonline.com/guides/de/qr-code-generator-best-practices.html) [lastmod=2026-07-06]
  Ein QR-Code, der immer scannt, ist eine kleine Reihe von Entscheidungen: Fehlerkorrektur, Kontrast, Groesse, Payload. Welche funktionieren und welche scheitern.
- [QR-Code-Inhaltstypen: URL, vCard, Wi-Fi, Text - Welcher Passt](https://freetoolonline.com/guides/de/qr-code-content-types-url-vcard-wifi-text-which-to-pick.html) [lastmod=2026-07-06]
  Waehlen Sie den richtigen Inhaltstyp fuer Ihren QR-Code: URL vs vCard vs Wi-Fi vs Text - was jeder codiert und was auf eine Visitenkarte oder einen Flyer passt.
- [QR-Code-Scanner - Schritt fuer Schritt](https://freetoolonline.com/guides/de/qr-code-scanner-step-by-step.html) [lastmod=2026-07-06]
  QR-Code-Scanner - genaue Schritte vom Oeffnen des Tools bis zum Ergebnis.
- [QR-Code-Scanner - Wann Verwenden](https://freetoolonline.com/guides/de/qr-code-scanner-when.html) [lastmod=2026-07-06]
  QR-Code-Scanner - wann es sich lohnt ihn zu oeffnen und was zu erwarten ist.
- [QR-Code-Scanner vs Alternativen](https://freetoolonline.com/guides/de/qr-code-scanner-vs-alternatives.html) [lastmod=2026-07-06]
  QR-Code-Scanner verglichen mit einer Desktop-Anwendung oder einem uploadbasierten Online-Dienst.
- [Sind Online-Tools wirklich kostenlos? Datenschutz, Monetarisierung und das In-Browser-Modell](https://freetoolonline.com/guides/de/tool-free.html) [lastmod=2026-07-06]
  Sind Online-Tools wirklich kostenlos? Wie In-Browser-Tools ohne Abos kostenlos bleiben, wie Anzeigen die Rechnung zahlen und was auf Ihrem Geraet bleibt. Zuletzt geprueft 2026-06-04.
- [So beschneiden und drehen Sie ein Bild](https://freetoolonline.com/guides/de/how-to-crop-and-rotate-an-image.html) [lastmod=2026-07-06]
  Beschneiden und drehen Sie ein Bild im Browser, ohne das Original zu verlieren. Pixelgenauer Zuschnitt, verlustfreie 90-Grad-Drehung, und wo das EXIF-Rotations-Flag wichtig ist.
- [So erkennen Sie, ob ein JPG zu stark komprimiert wurde](https://freetoolonline.com/guides/de/how-to-tell-if-a-jpg-was-compressed-too-much.html) [lastmod=2026-07-06]
  Lesen Sie den Qualitaetswert, mit dem ein vorhandenes JPG gespeichert wurde, erkennen Sie sichtbare Artefakte von Ueberkomprimierung und entscheiden Sie, ob Neukodierung helfen oder schaden wird.
- [So extrahieren Sie eine Datei online - ZIP, RAR, 7z (welche Route auf dieser Site was tut)](https://freetoolonline.com/guides/de/how-to-extract-a-file-online-zip-rar-7z.html) [lastmod=2026-07-06]
  Wenn Sie nach "datei online extrahieren" oder "file zipper" gesucht haben, dies ist die Routing-Regel. ZIP-Archive werden online ueber /unzip-file.html extrahiert (Server-Upload, optionales Passwort). RAR / 7z werden lokal mit Ihrem OS-Tool extrahiert - diese Seite hat keinen serverseitigen .rar- oder .7z-Extraktor, und die Anleitung sagt das ehrlich.
- [So flachen Sie eine PDF - und wann es zu tun ist](https://freetoolonline.com/guides/de/how-to-flatten-a-pdf-and-when-to-do-it.html) [lastmod=2026-07-06]
  Eine PDF zu "flachen" backt Formularfelder, Anmerkungen und Signaturen in statische Seitengrafiken ein. Lesen Sie, was Flachen tut, wann Sie es brauchen, und wann nicht.
- [So komprimieren Sie ein Bild online auf 50KB (kostenlos)](https://freetoolonline.com/guides/de/compress-image-online-to-50kb.html) [lastmod=2026-07-06]
  Bringen Sie ein JPG, PNG oder WebP online unter 50 KB: in JPG konvertieren, den Qualitaetsregler senken und die Vorschau nebeneinander pruefen, bevor Sie herunterladen. Kostenlos, ohne Konto.
- [So komprimieren Sie eine ZIP auf eine bestimmte Groesse (2 / 25 MB, 100 KB)](https://freetoolonline.com/guides/de/how-to-compress-a-zip-file-to-a-specific-size.html) [lastmod=2026-07-06]
  Eine exakte ZIP-Groesse zu treffen (2 MB, 25 MB E-Mail-Limit, 100 KB Formular-Limit) ist nicht deterministisch. Drei Dinge entscheiden es tatsaechlich. Die richtige Tool-Reihenfolge, pro Limit.
- [So komprimieren Sie eine Zip-Datei - Drei-Schritte-Anleitung](https://freetoolonline.com/guides/de/how-to-compress-a-zip-file.html) [lastmod=2026-07-06]
  So komprimieren Sie eine Zip-Datei online in drei Schritten: Ordner ablegen, Komprimierungsziel waehlen, herunterladen. Kostenlos, browserbasiert, ohne Installation. Zuletzt geprueft 2026-05-19.
- [So konvertieren Sie HEIC zu JPG Schritt fuer Schritt](https://freetoolonline.com/guides/de/how-to-convert-heic-to-jpg-step-by-step.html) [lastmod=2026-07-06]
  Konvertieren Sie HEIC zu JPG Schritt fuer Schritt. Serverseitige Decodierung via libheif, JPG-Download ueber HTTPS, bereit zum E-Mail-Versand. iPhone-Foto-Workflow in Sekunden.
- [So pruefen Sie die Kameraqualitaet Ihres Telefons](https://freetoolonline.com/guides/de/how-to-check-camera-quality-on-your-phone.html) [lastmod=2026-07-06]
  Ein zweiminuetiger Browser-Test fuer die Telefonkameraqualitaet: Aufloesung, Fokus, Schwachlicht, Staub auf der Linse. Was gut aussieht und Hardware vs Software.
- [So pruefen Sie einen Laptop-Bildschirm auf tote Pixel und Backlight-Bleeding](https://freetoolonline.com/guides/de/cek-layar-laptop.html) [lastmod=2026-07-06]
  Pruefen Sie den Laptop-Bildschirm im Browser: fuellen Sie ihn mit Rot, Gruen, Blau, Schwarz, Weiss und Gelb, um tote oder haengende Pixel zu finden. Gratis.
- [So testen Sie eine Tastatur online Schritt fuer Schritt](https://freetoolonline.com/guides/de/how-to-test-a-keyboard-online-step-by-step.html) [lastmod=2026-07-06]
  Ein 60-Sekunden-Tastaturtest im Browser: oeffnen Sie die Seite, druecken Sie jede Taste, beobachten Sie, wie jede aufleuchtet. Erkennen Sie nicht funktionierende Tasten, klemmende Tasten und Modifier-Tasten-Fehler ohne Installation.
- [So testen Sie einen Touchscreen auf tote Stellen](https://freetoolonline.com/guides/de/how-to-test-a-touchscreen-for-bad-spots.html) [lastmod=2026-07-06]
  Eine 60-Sekunden-Browser-Pruefung auf nicht reagierende Bereiche auf Touchscreens von Telefon, Tablet oder Laptop. Was jedes Fehlermuster bedeutet und wann die Garantie zu rufen ist.
- [So unterzeichnen Sie eine PDF nach dem Entfernen des Passworts](https://freetoolonline.com/guides/de/how-to-sign-pdf-after-removing-a-password.html) [lastmod=2026-07-06]
  Wie Sie eine PDF nach dem Entfernen des Eigentuemer-Passworts unterzeichnen - legitimer Workflow fuer Vertraege und Formulare, mit rechtlichen und Datenschutz-Hinweisen.
- [So waehlen Sie ein Kompressionsniveau - Qualitaet vs Dateigroesse, mit Beispielen](https://freetoolonline.com/guides/de/how-to-choose-a-compression-level.html) [lastmod=2026-07-06]
  Waehlen Sie das richtige Kompressionsniveau auf /compress-image.html - 50, 70, 85 oder 100. Konkrete Dateigroessenbereiche, wann jedes Niveau gut genug ist und wann weiter.
- [Sprache zu Text Schritt fuer Schritt](https://freetoolonline.com/guides/de/speech-text-step-by-step.html) [lastmod=2026-07-06]
  Sprache zu Text Schritt fuer Schritt - die genauen Schritte zur Nutzung von Sprache zu Text vom Start bis zum heruntergeladenen Ergebnis.
- [Sprache zu Text vs Alternativen](https://freetoolonline.com/guides/de/speech-text-vs-alternatives.html) [lastmod=2026-07-06]
  Sprache zu Text vs Alternativen - wie Sprache zu Text im Vergleich zu einer Desktop-App oder einem Upload-Dienst abschneidet.
- [Sprache zu Text Wann Verwenden](https://freetoolonline.com/guides/de/speech-text-when.html) [lastmod=2026-07-06]
  Sprache zu Text Wann Verwenden - wann Sprache zu Text geoeffnet werden sollte und was zu erwarten ist.
- [SVG zu PNG - wann rasterisieren](https://freetoolonline.com/guides/de/svg-to-png-when-to-rasterize-an-svg.html) [lastmod=2026-07-06]
  Die meisten SVGs sollten Vektor bleiben. Die Ausnahmen: Legacy-Software, die SVG nicht parst, Social-Share-Vorschauen, E-Mail-Clients. Wann und wie sauber rasterisieren.
- [Tastatur-Test - Rollover vs Anti-Ghosting](https://freetoolonline.com/guides/de/keyboard-tester-online-rollover-vs-anti-ghosting.html) [lastmod=2026-07-06]
  N-Key-Rollover und Anti-Ghosting sind unterschiedliche Tastaturfunktionen. Ein Tastatur-Test im Browser zeigt beide. Was druecken, worauf achten, was das Ergebnis bedeutet.
- [Tasten Nicht Erkannt im Tastatur-Test: 4 Loesungen](https://freetoolonline.com/guides/de/keyboard-test-keys-not-detected-four-fixes.html) [lastmod=2026-07-06]
  Der Tastatur-Test hebt manche Tasten nicht hervor? Vier Ursachen - Fokus, OS-Layout, Sticky-Keys-Filter, Hardware-Schalter - und eine Ein-Minuten-Loesung fuer jede.
- [Text in ein Bild (PNG) umwandeln - online und kostenlos](https://freetoolonline.com/guides/de/how-to-turn-text-into-an-image-online.html) [lastmod=2026-07-06]
  Gestalte Text im Browser - waehle Schriftart, Groesse, Farben, Abstand und einen Schatten, und lade ihn als PNG-Bild herunter. Ohne Upload, ohne Konto.
- [Text Umkehren: Wann Es Wirklich Hilft](https://freetoolonline.com/guides/de/reverse-text-when.html) [lastmod=2026-07-06]
  Wann Text umkehren hilft: Palindrome pruefen, gespiegelte Untertitel, einfache Chiffren, und der Vergleich mit Tabelle, rev oder Skript.
- [Text vs Line vs Word vs Git Diff](https://freetoolonline.com/guides/de/text-diff-vs-line-diff-vs-word-diff-vs-git-diff.html) [lastmod=2026-07-06]
  Vier Arten von Diff beantworten unterschiedliche Fragen. Text-Diff fuer jedes Paar, Line-Diff fuer Code, Word-Diff fuer Prosa, Git-Diff fuer verfolgte Aenderungen. Jeder erklaert.
- [Text zu Sprache Schritt fuer Schritt](https://freetoolonline.com/guides/de/text-speech-step-by-step.html) [lastmod=2026-07-06]
  Text zu Sprache Schritt fuer Schritt - die genauen Schritte, um Text zu Sprache vom Start bis zum Ergebnis zu nutzen.
- [Text zu Sprache Versus Alternativen](https://freetoolonline.com/guides/de/text-speech-vs-alternatives.html) [lastmod=2026-07-06]
  Text zu Sprache Versus Alternativen - wie Text zu Sprache im Vergleich mit einer Desktop-App oder einem Upload-Dienst abschneidet.
- [Text zu Sprache Wann Verwenden](https://freetoolonline.com/guides/de/text-speech-when.html) [lastmod=2026-07-06]
  Text zu Sprache Wann Verwenden - wann es sinnvoll ist, Text zu Sprache zu oeffnen und was man dabei erwarten kann.
- [Textzeilen Schritt fuer Schritt Sortieren: eine Liste im Browser Ordnen](https://freetoolonline.com/guides/de/sort-text-lines-step-by-step.html) [lastmod=2026-07-06]
  Eine Schritt-fuer-Schritt-Anleitung zum kostenlosen Tool Sort Text Lines: wie man eine Liste A-Z oder Z-A sortiert, wie die Reihenfolge bestimmt wird und warum Zahlen als Text sortiert werden.
- [To-do-Liste online erstellen - kostenlos und ohne Anmeldung](https://freetoolonline.com/guides/de/how-to-make-a-to-do-list-online.html) [lastmod=2026-07-06]
  Erstellen Sie kostenlos eine To-do-Liste online. Aufgaben hinzufuegen, abhaken und loeschen; Ihre Liste wird im Browser gespeichert, ohne App und ohne Konto.
- [Tote Pixel testen bevor Sie einen Monitor zurueckgeben](https://freetoolonline.com/guides/de/how-to-test-for-dead-pixels-before-returning-a-monitor.html) [lastmod=2026-07-06]
  So testen Sie tote Pixel bevor Sie einen Monitor zurueckgeben - Vollbild-Farbpruefung, festsitzende vs tote Pixel, Garantienachweis und was Hersteller akzeptieren.
- [Unix-Timestamps Erklaert](https://freetoolonline.com/guides/de/unix-timestamps-explained.html) [lastmod=2026-07-06]
  Unix-Timestamps erklaert - Sekunden vs Millisekunden, ISO-8601, RFC 2822, UTC vs Ortszeit und die haeufigen Fallstricke beim Konvertieren zwischen Formaten.
- [Url Decoder Schritt Fuer Schritt](https://freetoolonline.com/guides/de/url-decoder-step-by-step.html) [lastmod=2026-07-06]
  Url Decoder Schritt Fuer Schritt - die genauen Schritte zur Ausfuehrung des URL Decoders.
- [Url Decoder Vs Alternativen](https://freetoolonline.com/guides/de/url-decoder-vs-alternatives.html) [lastmod=2026-07-06]
  Url Decoder Vs Alternativen - wie URL Decoder im Vergleich zu einer Desktop-App oder einem Upload-Dienst abschneidet.
- [Url Decoder Wann Verwenden](https://freetoolonline.com/guides/de/url-decoder-when.html) [lastmod=2026-07-06]
  Url Decoder Wann Verwenden - wann Sie den URL Decoder verwenden und was Sie erwarten koennen.
- [Video-zu-GIF-Konverter Schritt fuer Schritt](https://freetoolonline.com/guides/de/video-gif-converter-step-by-step.html) [lastmod=2026-07-06]
  Video-zu-GIF-Konverter Schritt fuer Schritt - die genauen Schritte, um den Video-zu-GIF-Konverter vom Oeffnen bis zum heruntergeladenen Ergebnis auszufuehren.
- [Video-Zu-Gif-Konverter Vs Alternativen](https://freetoolonline.com/guides/de/video-gif-converter-vs-alternatives.html) [lastmod=2026-07-06]
  Video-Zu-Gif-Konverter Vs Alternativen - wie sich der Video-zu-GIF-Konverter mit einer Desktop-Anwendung oder einem Upload-basierten Dienst vergleicht.
- [Video-zu-GIF-Konverter Wann Verwenden](https://freetoolonline.com/guides/de/video-gif-converter-when.html) [lastmod=2026-07-06]
  Video-zu-GIF-Konverter Wann Verwenden - wann sich das Oeffnen des Video-zu-GIF-Konverters fuer die Aufgabe eignet und was zu erwarten ist, wenn es passt.
- [Vor einem Videoanruf - welche Tools auszuführen (Bildschirm, Kamera, Mikrofon)](https://freetoolonline.com/guides/de/before-a-video-call-which-tools-to-run.html) [lastmod=2026-07-06]
  Fünf Minuten vor einem Videoanruf: eine schnelle Checkliste, welche Prüfungen auf Ihrem Bildschirm, Ihrer Webcam und Ihrem Mikrofon auszuführen sind, in der Reihenfolge der Priorität, mit dem richtigen Tool für jeden Schritt.
- [Wann den Online-Sprachrekorder Verwenden](https://freetoolonline.com/guides/de/voice-recorder-when.html) [lastmod=2026-07-06]
  Wann den Online-Sprachrekorder verwenden - wann dieses Browser-Werkzeug passt und was Sie erwarten koennen.
- [Wann den Prozentrechner Nutzen](https://freetoolonline.com/guides/de/percentage-calculator-when.html) [lastmod=2026-07-06]
  Prozentrechner: wann Percentage Calculator sinnvoll ist und was zu erwarten ist, wenn er das richtige Werkzeug ist.
- [Wann Sie einen Zufaelligen Listen-Mischer Nutzen Sollten](https://freetoolonline.com/guides/de/random-list-shuffler-when.html) [lastmod=2026-07-06]
  Wann ein zufaelliger Listen-Mischer die richtige Wahl ist: Reihenfolge festlegen, Aufgaben verteilen und Verlosungslisten - und wann stattdessen ein Einzelauswahl-Tool passt.
- [Warum HEIC sich nicht auf Windows oeffnen laesst - drei schnelle Loesungen](https://freetoolonline.com/guides/de/why-heic-wont-open-on-windows-three-fixes.html) [lastmod=2026-07-06]
  Wenn Windows sagt, dass eine .heic-Datei nicht geoeffnet werden kann, helfen drei schnelle Loesungen: kostenlose HEIF-Erweiterung installieren, kostenlosen Viewer nutzen oder online in JPG konvertieren.
- [Warum MD5 Nicht Entschluesselt Werden Kann](https://freetoolonline.com/guides/de/why-md5-cannot-be-decrypted.html) [lastmod=2026-07-06]
  MD5 ist ein Einweg-Hash, keine Verschluesselung, daher gibt es keinen Entschluesselungsschluessel. Was md5-decrypt-Tools tatsaechlich tun, warum MD5 fuer Passwoerter unsicher ist, und was zu verwenden ist.
- [Was Ein LCD-Test Macht (und Wann Einen Ausfuehren)](https://freetoolonline.com/guides/de/what-an-lcd-test-does-and-when-to-run-one.html) [lastmod=2026-07-06]
  Was ein LCD-Test wirklich prueft (tote Pixel, festgesetzte Pixel, Lichthof, Banding) - und wann einen auszufuehren die richtige Entscheidung ist, bevor Sie einen Bildschirm behalten.
- [Was ein LCD-Test wirklich prueft](https://freetoolonline.com/guides/de/lcd-test-what-it-checks.html) [lastmod=2026-07-06]
  Ein LCD-Test scannt nach toten Pixeln, festsitzenden Pixeln, Farbgleichmaessigkeit und Burn-in. Was jede Pruefung bedeutet und wann sie vor Garantie oder Rueckgabe auszufuehren ist.
- [Was Ist Ein Dateikomprimierer und Welchen Verwenden](https://freetoolonline.com/guides/de/what-is-a-file-compressor-and-which-to-use.html) [lastmod=2026-07-06]
  Ein "Dateikomprimierer" ist nicht ein einziges Werkzeug. Waehlen Sie nach Dateityp: einen Ordner ZIPpen, Fotos komprimieren, HEIC konvertieren, PDFs buendeln oder einen Transfer-Link verwenden.
- [Webcam Und Mikrofon Vor Dem Interview Pruefen](https://freetoolonline.com/guides/de/how-to-check-webcam-and-microphone-before-an-interview.html) [lastmod=2026-07-06]
  Pruefen Sie Webcam und Mikrofon vor einem Interview - 5-minuetiger Browser-Test fuer Kamera, Mikrofonpegel, Beleuchtung und Verzoegerung. Keine Installation, kein Upload.
- [Webcam-Spiegelung vs Flip Erklärt: Warum Ihre Kamera-Vorschau Text Umkehrt](https://freetoolonline.com/guides/de/camera-mirror-vs-flip-explained.html) [lastmod=2026-07-06]
  Warum Ihre Webcam-Vorschau Text umkehrt und das gespeicherte Video normalerweise nicht. 30-Sekunden-Beweisprozedur plus exakte Schritte zum Deaktivieren des Spiegels für OBS, Zoom, Google Meet und Microsoft Teams.
- [Wecker Online: Schritt-fuer-Schritt-Anleitung](https://freetoolonline.com/guides/de/alarm-clock-step-by-step.html) [lastmod=2026-07-06]
  Stellen Sie die Weckzeit ein, achten Sie auf die Meldung am Bildschirm, und sehen Sie genau, was passiert - und was nicht passiert - wenn er klingelt.
- [Wie man die Zip-Dateigroesse online reduziert (kostenlos)](https://freetoolonline.com/guides/de/how-to-reduce-zip-file-size-online.html) [lastmod=2026-07-06]
  Reduzieren Sie die Zip-Dateigroesse online und kostenlos. Warum Ihr Zip gross ist, was sich gut komprimieren laesst, und drei Taktiken, um in jedes 25-MB-E-Mail- oder Upload-Limit zu passen.
- [Wie man die ZIP-Dateigroesse reduziert - was komprimiert, was nicht](https://freetoolonline.com/guides/de/how-to-reduce-zip-file-size.html) [lastmod=2026-07-06]
  Warum die meisten ZIPs nicht schrumpfen und wie man eine wirklich verkleinert - was komprimiert (Text, CSV, Quellcode), was nicht (JPG, MP4, MP3), und der Workflow, der funktioniert.
- [Wie Man Ein GIF In Einzelbilder Aufteilt](https://freetoolonline.com/guides/de/how-to-split-a-gif-into-frames-for-editing.html) [lastmod=2026-07-06]
  Holen Sie einzelne Einzelbilder aus einem animierten GIF zur Bearbeitung, Archivierung oder fuer Social-Media-Posts heraus. Browser-Anleitung, die die originalen Timing-Daten pro Einzelbild beibehaelt.
- [Wie Man Ein iPhone-Foto Zu JPG Konvertiert](https://freetoolonline.com/guides/de/how-to-convert-iphone-photo-to-jpg.html) [lastmod=2026-07-06]
  Konvertieren Sie ein iPhone-Foto von HEIC zu JPG ohne iCloud, installierte App oder Desktop. Browser-Anleitung, die einzelne Fotos und Batches gleichermassen behandelt.
- [Wie Man Ein JPG Fuer E-Mail-Anhangsgroessenlimits Komprimiert](https://freetoolonline.com/guides/de/how-to-compress-a-jpg-for-email-attachment-limits.html) [lastmod=2026-07-06]
  Waehlen Sie die richtige JPG-Qualitaet, um Fotos unter die E-Mail-Limits von Gmail 25 MB / Outlook 20 MB / 10 MB Unternehmen zu bringen, ohne dass das Foto zu Brei wird.
- [Wie Man eine Datei Online Komprimiert (Schritt für Schritt)](https://freetoolonline.com/guides/de/how-to-compress-a-file-online.html) [lastmod=2026-07-06]
  Identifizieren Sie zuerst den Dateityp, wählen Sie dann das passende Tool: Bild für Compress Image, HEIC für HEIC to JPG, PDF für Flatten PDF, Video für Video Converter, Dokument für ZIP.
- [Wie man eine Nachricht in einem Bild versteckt (Steganografie)](https://freetoolonline.com/guides/de/how-to-hide-a-message-in-an-image.html) [lastmod=2026-07-06]
  Wie man eine geheime Textnachricht in einem PNG-Bild versteckt und wieder ausliest, optional mit Passwort - kostenlos, im Browser, nichts wird hochgeladen.
- [Wie man eine Zip kleiner komprimiert](https://freetoolonline.com/guides/de/how-to-compress-zip-file-to-smaller-size.html) [lastmod=2026-07-06]
  Komprimieren Sie eine bestehende Zip erneut, richtig: wann das Neu-Zippen hilft, wann es nichts bewirkt, und das Browser-Werkzeug zur Verwendung ohne Archiv-Upload.
- [Wie Man Eine ZIP-Datei Auf 100 KB Komprimiert - Kostenlos, Im Browser](https://freetoolonline.com/guides/de/compress-zip-file-to-100kb.html) [lastmod=2026-07-06]
  Versuchen, eine ZIP unter 100 KB zu bringen? Lesen Sie, welche Eingaben dieses Ziel allein erreichen, wann erneutes Zippen hilft und wann die Datei aufgeteilt werden muss. Kostenlos, im Browser.
- [Wie Man Eine ZIP-Datei Auf 2 MB Komprimiert - Kostenlos, Im Browser](https://freetoolonline.com/guides/de/compress-zip-file-to-2mb.html) [lastmod=2026-07-06]
  Benoetigen Sie eine ZIP unter 2 MB fuer ein E-Mail-Anhanglimit? Lesen Sie, welche Eingaben auf 2 MB packen, wann erneutes Zippen hilft und wann aufgeteilt werden muss. Kostenlos, im Browser.
- [Wie man eine Zip-Datei kleiner macht](https://freetoolonline.com/guides/de/how-to-make-a-zip-file-smaller.html) [lastmod=2026-07-06]
  Machen Sie ein Zip kleiner ohne Dateien zu verlieren: waehlen Sie die richtige Komprimierungsstufe, entfernen Sie zuerst vorkomprimierte Medien, teilen Sie auf, wenn es ein E-Mail-Groessenlimit ueberwinden muss.
- [Wie Man Einen Ordner Komprimiert](https://freetoolonline.com/guides/de/how-to-compress-a-folder.html) [lastmod=2026-07-06]
  Komprimieren Sie einen ganzen Ordner in eine einzige ZIP in Ihrem Browser. Drei Schritte vom Drag-and-Drop bis zum kleineren Einzeldatei-Download. Kostenlos, keine Installation.
- [Wie man einen Ordner online zippt, Schritt fuer Schritt](https://freetoolonline.com/guides/de/how-to-zip-folder-online-step-by-step.html) [lastmod=2026-07-06]
  Zippen Sie einen Ordner online in fuenf Schritten: Ordner waehlen, Struktur behalten, Kompression einstellen, Ausgabe benennen, herunterladen. Nur im Browser, mit den Fallen, die zu vermeiden sind.
- [Zeit in Millisekunden: die Einheit, die Umrechnungen und der Epoch-Wert](https://freetoolonline.com/guides/de/time-in-ms.html) [lastmod=2026-07-06]
  Eine Zeit in Millisekunden ist eine Zahl, bei der 1 Sekunde 1000 ms entspricht. Lernen Sie die Dauer- und Epoch-Bedeutung, eine Umrechnungstabelle und wo ms im Code vorkommt.
- [ZIP komprimieren - Wann das Archiv die Groesse schrumpft](https://freetoolonline.com/guides/de/kompres-zip.html) [lastmod=2026-07-06]
  ZIP-Komprimierungsanleitung: wann das .zip-Format die Groesse tatsaechlich schrumpft, wann nicht, und wo das Werkzeug zum Erstellen von Archiven im Browser lebt. Kostenlos, ohne Installation.
- [ZIP komprimieren: wann ZIP-Kompression Platz spart (und wann nicht)](https://freetoolonline.com/guides/de/compress-zip.html) [lastmod=2026-07-06]
  Eine kurze leserorientierte Anleitung zum Komprimieren von Dateien in ZIP: wann ZIP-Kompression tatsaechlich Platz spart, wann nicht, und wo der Browser-ZIP-Ersteller zu finden ist.
- [Zip vs Zipx vs Rar vs 7z, erklaert](https://freetoolonline.com/guides/de/zip-vs-zipx-vs-rar-vs-7z-archive-formats-explained.html) [lastmod=2026-07-06]
  Vier Archivformate verglichen: welches Windows standardmaessig oeffnet, welches am kleinsten komprimiert, und welches eine separate App wert ist. Anleitung in einfacher Sprache.
- [Zip-Datei Groesse Aendern: Was "Resize" Bei Einer .zip Tatsaechlich Bedeutet](https://freetoolonline.com/guides/de/resize-zip-file.html) [lastmod=2026-07-06]
  "Zip-Datei Groesse aendern" bedeutet meist das Archiv zu verkleinern, manchmal aufzuteilen, manchmal die Fotos darin zu verkleinern vor dem Re-Zip. Routing-Tabelle + das richtige Werkzeug fuer jeden Fall.
- [ZIP-Datei online entsperren - Anleitung](https://freetoolonline.com/guides/de/unlock-zip-file-online.html) [lastmod=2026-07-06]
  Entsperren Sie eine ZIP-Datei online: waehlen Sie den Weg fuer passwortgeschuetzte ZIPs vs einfache ZIPs, fuehren Sie das richtige Werkzeug kostenlos im Browser aus. Zuletzt geprueft: 2026-05-20.
- [ZIP-Datei Online Erstellen - was das Werkzeug tatsaechlich macht und wann ZIP Speicherplatz spart](https://freetoolonline.com/guides/de/make-zip-file-online.html) [lastmod=2026-07-06]
  ZIP-Datei online erstellen: wann ZIP wirklich Speicherplatz spart, wann nicht, und wie man Dateien oder einen Ordner als einen einzigen Download sendet. Kostenlos, keine Installation.
- [Zip-Datei Online Erstellen (Kostenloser ZIP-Ersteller, Keine Installation, Kein Konto)](https://freetoolonline.com/guides/de/create-zip-file-online.html) [lastmod=2026-07-06]
  Erstellen Sie eine ZIP-Datei online aus einem Ordner oder einer Mehrfachauswahl. Kostenloser Ersteller unter /zip-tools/zip-file.html; keine Installation auf beiden Seiten; Archiv wird nach kurzer Aufbewahrung automatisch gelöscht. Zuletzt geprüft 2026-05-18.
- [ZIP-Datei online komprimieren - vollstaendige Anleitung im Browser](https://freetoolonline.com/guides/de/kompres-file-zip.html) [lastmod=2026-07-06]
  Anleitung zum Komprimieren von ZIP-Dateien online im Browser. Buendle Dateien und Ordner in ein .zip-Archiv, fuege ein optionales Passwort hinzu, lade in Sekunden herunter. Kostenlos, ohne Installation.
- [ZIP-Datei online: So erstellst du ein ZIP-Archiv online (kostenlos, im Browser)](https://freetoolonline.com/guides/de/online-zip-file.html) [lastmod=2026-07-06]
  Erstelle ein ZIP-Archiv online - fuege Dateien oder einen Ordner in den Browser-Ersteller ein, erhalte eine herunterladbare .zip-Datei, ohne Installation, ohne Anmeldung. Zuletzt geprueft 2026-05-18.
- [ZIP-Datei-Kompressor Online - Buendle und schrumpfe Ordner in eine ZIP](https://freetoolonline.com/guides/de/zip-file-compressor-online.html) [lastmod=2026-07-06]
  ZIP-Datei-Kompressor online: buendle Dateien oder einen ganzen Ordner in eine .zip-Datei, setze ein optionales Passwort und lade herunter. Kostenlos, im Browser, ohne Installation.
- [ZIP-Datei-Konverter - Schnellanleitung](https://freetoolonline.com/guides/de/zip-file-converter.html) [lastmod=2026-07-06]
  Schnellanleitung fuer den ZIP-Datei-Konverter auf freetoolonline.com. Komprimieren Sie Ordner und Dateien zu einem ZIP-Archiv online, kostenlos, ohne Installation. Zuletzt geprueft: 2026-05-19.
- [Zip-Datei-Konverter - Was Er Wirklich Macht](https://freetoolonline.com/guides/de/zip-file-converter-what-it-actually-does.html) [lastmod=2026-07-06]
  "Zip-Datei-Konverter" ist die falsche Suche. ZIP ist ein Container, kein Format. Drei echte Absichten: buendeln, extrahieren oder Bilder komprimieren. Waehlen Sie nach Absicht in 30 Sekunden.
- [ZIP-Dateigroesse Online Reduzieren - Kostenlose Browser-Anleitung](https://freetoolonline.com/guides/de/reduce-zip-file-size-online.html) [lastmod=2026-07-06]
  Verkleinern Sie ein ZIP-Archiv in Ihrem Browser - was tatsaechlich Bytes spart, was nicht, und wie Sie die 25-MB-E-Mail-Grenze ohne Datei-Aufteilung erreichen.
- [Zip-Dateigroesse-Komprimierer - Kostenloser Online-Leitfaden](https://freetoolonline.com/guides/de/zip-file-size-compressor.html) [lastmod=2026-07-06]
  Verwenden Sie einen Online-Zip-Dateigroesse-Komprimierer, um einen Ordner voller Dateien in einer einzigen .zip zu buendeln und die Gesamtgroesse vor dem Senden zu reduzieren. Kostenlos, ohne Installation. Zuletzt geprueft 2026-05-19.
- [ZIP-Entsperrer online: Verwende dies, wenn du das Passwort kennst](https://freetoolonline.com/guides/de/zip-unlocker-online.html) [lastmod=2026-07-06]
  Ein "ZIP-Entsperrer online" ist nur dann das richtige Werkzeug, wenn du das Passwort bereits kennst. Oeffne den Entferner im Browser, gib das Passwort ein, lade die entsperrte Kopie herunter.
- [ZIP-Groesse online verkleinern - Kostenloser Leitfaden](https://freetoolonline.com/guides/de/mengecilkan-ukuran-zip.html) [lastmod=2026-07-06]
  Erfahren Sie, wie Sie die ZIP-Groesse online verkleinern: Dateien auswaehlen, komprimieren und ein kleineres Archiv im Browser herunterladen. Schritt fuer Schritt, ohne Installation. Zuletzt geprueft 2026-06-19.
- [ZIP-Groessen-Reduzierer - wann ZIP-Kompression Ihr Archiv tatsaechlich verkleinert](https://freetoolonline.com/guides/de/zip-size-reducer.html) [lastmod=2026-07-06]
  Eine leserorientierte Anleitung zur Verwendung eines ZIP-Groessen-Reduzierers: wann ZIP-Kompression tatsaechlich Platz spart, wann nicht, und wo der Browser-ZIP-Ersteller zu finden ist. Zuletzt geprueft: 2026-05-17.
- [ZIP-Größe Komprimieren: Wie Viel Kleiner Wird das Archiv Tatsächlich?](https://freetoolonline.com/guides/de/compress-zip-size.html) [lastmod=2026-07-06]
  Wie viel kann die ZIP-Komprimierung die Größe eines Ordners reduzieren? Komprimierbarkeitsheuristik plus ein Browser-Pfad zum Ersteller. Kostenlos, keine Installation. Zuletzt geprüft 2026-05-15.
- [ZIP-Kompression - ZIP-Kompressions-Anleitung](https://freetoolonline.com/guides/de/zip-compress.html) [lastmod=2026-07-06]
  ZIP-Kompressions-Anleitung: wann ZIP Dateien verkleinert, wann nicht, und wie man einen Ordner online zu einem Archiv buendelt. Kostenlos, ohne Installation. Zuletzt geprueft: 2026-05-18.
- [ZIP-Kompressor Online - wann er einen Ordner schrumpfen laesst und wann nicht](https://freetoolonline.com/guides/de/zip-compressor-online.html) [lastmod=2026-07-06]
  Ein Online-ZIP-Kompressor buendelt einen Ordner mit Dateien in eine .zip. Der Groessen-Schnitt haengt vom Eingabetyp ab - Text schrumpft, JPG/MP4 nicht. Werkzeug-Link innen.
- [ZIP-Kompressor: Dateien in ein kleineres ZIP-Archiv komprimieren](https://freetoolonline.com/guides/de/zip-compressor.html) [lastmod=2026-07-06]
  Eine kurze leseraufgaben-orientierte Anleitung zur Verwendung eines ZIP-Kompressors: wann ZIP-Komprimierung fuer einen Ordner mit Dateien gewaehlt werden sollte, was das resultierende .zip-Archiv bewahrt und nicht bewahrt, und wo das Browser-basierte Werkzeug zu finden ist.
- [ZIP-Passwort-Entsperrer: wann ein Online-Werkzeug ein Passwort entfernen kann (und wann es eines nicht knacken kann)](https://freetoolonline.com/guides/de/zip-password-unlocker.html) [lastmod=2026-07-06]
  Was ZIP-Passwort-Entsperrer online bedeutet: ein Passwort entfernen, das Sie bereits kennen, aus einem .zip-Archiv; unbekannte Passwoerter koennen nicht geknackt werden. Geprueft 2026-05-18.
- [ZIP-Passwort-Wiederherstellung Online - was funktioniert (und was nicht)](https://freetoolonline.com/guides/de/zip-password-recovery-online.html) [lastmod=2026-07-06]
  ZIP-Passwort-Wiederherstellungs-Leitfaden online: was Online-Entsperrer koennen und nicht koennen, plus die drei funktionierenden Wege, wenn Sie ein ZIP-Passwort vergessen haben. Zuletzt geprueft 2026-05-18.
- [ZIP-Passworttypen - stark vs schwach, erklaert (wann ein Online-Entferner helfen kann)](https://freetoolonline.com/guides/de/zip-password-types-strong-vs-weak-explained.html) [lastmod=2026-07-06]
  Bevor Sie eine passwortgeschuetzte ZIP an /remove-zip-password.html hochladen, pruefen Sie den Verschluesselungstyp. Legacy ZIP 2.0 + ein kurzes oder numerisches Passwort ist in Sekunden wiederherstellbar. WinZip AES-256 mit einem starken Passwort nicht. Ein 30-Sekunden-Entscheidungsleitfaden, damit Sie keinen Upload verschwenden.
- [Zufaelliger Listen-Mischer vs. Alternativen](https://freetoolonline.com/guides/de/random-list-shuffler-vs-alternatives.html) [lastmod=2026-07-06]
  Vergleicht den browserbasierten Listen-Mischer mit manueller Neuordnung und einer Tabellenformel RAND() bei Einrichtungszeit, Installationsgroesse und Datenschutz.
- [Zufaelliger Listen-Mischer: Schritt-fuer-Schritt-Anleitung](https://freetoolonline.com/guides/de/random-list-shuffler-step-by-step.html) [lastmod=2026-07-06]
  Schritt fuer Schritt: Liste einfuegen, auf Shuffle klicken, und eine faire zufaellige Reihenfolge per Fisher-Yates und crypto.getRandomValues direkt im Browser erhalten.

### Spanish guides (243)

- [¿Conversión FFmpeg Online Atascada? Tres Correcciones (y Prueba de 30 Segundos)](https://freetoolonline.com/guides/es/ffmpeg-online-conversion-stalled-three-fixes.html) [lastmod=2026-07-06]
  ¿Conversión FFmpeg atascada? Tres causas comunes - límite de memoria del navegador, pestaña en segundo plano, codec no soportado - cada una con solución y prueba de 30 segundos.
- [¿JPG Comprimido Se Ve Borroso? Tres Causas (y Soluciones Rápidas)](https://freetoolonline.com/guides/es/compressed-jpg-looks-blurry-three-causes.html) [lastmod=2026-07-06]
  ¿JPG se ve borroso tras compresión? Tres causas comunes - calidad muy baja, recodificaciones repetidas, fuente upscaled - cada una con una solución rápida.
- [Alternativas a MD5: bcrypt, Argon2id, SHA-256](https://freetoolonline.com/guides/es/md5-alternatives-bcrypt-argon2id-sha256-when-each-fits.html) [lastmod=2026-07-06]
  MD5 es incorrecto para contrasenas e integridad adversaria. Elige bcrypt o Argon2id para contrasenas, HMAC-SHA-256 para MAC, SHA-256 para integridad.
- [Antes de una videollamada - qué herramientas ejecutar (pantalla, cámara, micrófono)](https://freetoolonline.com/guides/es/before-a-video-call-which-tools-to-run.html) [lastmod=2026-07-06]
  Cinco minutos antes de una videollamada: una lista rápida de qué comprobaciones ejecutar en tu pantalla, webcam y micrófono, en orden de prioridad, con la herramienta adecuada para cada paso.
- [Archivo a ZIP - Guia del Compresor de Archivos en Linea](https://freetoolonline.com/guides/es/file-to-zip.html) [lastmod=2026-07-06]
  Como convertir un archivo en un archivo ZIP en linea: cuando el ZIP realmente reduce el archivo, cuando no, y donde esta el creador.
- [Archivo ZIP Online: Como crear un archivo ZIP en linea (gratis, en el navegador)](https://freetoolonline.com/guides/es/online-zip-file.html) [lastmod=2026-07-06]
  Crea un archivo ZIP en linea - pega archivos o una carpeta en el creador del navegador, obten un .zip descargable, sin instalacion, sin registro. Ultima revision 2026-05-18.
- [Base64 - Cuando Usar y Cuando No](https://freetoolonline.com/guides/es/base64-when-to-use-and-when-not-to.html) [lastmod=2026-07-06]
  Base64 hace los datos binarios seguros para texto con un costo de tamano del 33 por ciento. Correcto para data URLs inline e iconos pequenos; incorrecto para activos sobre unos pocos kilobytes. Reglas de decision.
- [Calculadora de Porcentaje Paso a Paso](https://freetoolonline.com/guides/es/percentage-calculator-step-by-step.html) [lastmod=2026-07-06]
  Calculadora de Porcentaje Paso a Paso - los pasos exactos para usar Percentage Calculator desde el inicio hasta el resultado.
- [Calculadora de Porcentaje Versus Alternativas](https://freetoolonline.com/guides/es/percentage-calculator-vs-alternatives.html) [lastmod=2026-07-06]
  Calculadora de Porcentaje vs alternativas - como se compara Percentage Calculator con una hoja de calculo o un servicio en linea basado en subida de archivos.
- [Carpeta A Zip: Cuando y Como Archivar Una Carpeta Online (Guia Gratis)](https://freetoolonline.com/guides/es/folder-to-zip.html) [lastmod=2026-07-06]
  Guia de carpeta a zip: cuando archivar una carpeta en un solo .zip realmente ahorra espacio, como elegir la herramienta correcta y donde vive el creador en el navegador. Gratis, sin instalacion.
- [Como agrupar varios archivos en un ZIP](https://freetoolonline.com/guides/es/how-to-zip-multiple-files-into-one.html) [lastmod=2026-07-06]
  Agrupa varios archivos en un solo archivo ZIP en el navegador: selecciona, nombra la salida, elige un nivel de compresion y descarga. Sin subida ni instalacion.
- [Como aplanar un PDF - y cuando hacerlo](https://freetoolonline.com/guides/es/how-to-flatten-a-pdf-and-when-to-do-it.html) [lastmod=2026-07-06]
  Aplanar un PDF hornea campos de formulario, anotaciones y firmas en graficos de pagina estaticos. Lee que hace el aplanado, cuando lo necesitas, y cuando no.
- [Cómo Comprimir un Archivo Online (Paso a Paso)](https://freetoolonline.com/guides/es/how-to-compress-a-file-online.html) [lastmod=2026-07-06]
  Identifica el tipo de archivo primero, luego elige la herramienta adecuada: imagen para Compress Image, HEIC para HEIC to JPG, PDF para Flatten PDF, video para Video Converter, documento para ZIP.
- [Como comprimir un archivo zip - guia en tres pasos](https://freetoolonline.com/guides/es/how-to-compress-a-zip-file.html) [lastmod=2026-07-06]
  Como comprimir un archivo zip en linea en tres pasos: suelta la carpeta, elige un objetivo de compresion, descarga. Gratis, basado en navegador, sin instalacion. Ultima revision 2026-05-19.
- [Como comprimir un archivo ZIP a 100 KB - gratis, en el navegador](https://freetoolonline.com/guides/es/compress-zip-file-to-100kb.html) [lastmod=2026-07-06]
  Intentando poner un ZIP por debajo de 100 KB? Lee que entradas alcanzan ese objetivo solas, cuando re-comprimir ayuda y cuando el archivo debe dividirse. Gratis, en navegador.
- [Como comprimir un archivo ZIP a 2 MB - gratis, en el navegador](https://freetoolonline.com/guides/es/compress-zip-file-to-2mb.html) [lastmod=2026-07-06]
  Necesitas un ZIP por debajo de 2 MB para un limite de adjunto de correo? Lee que entradas comprimen a 2 MB, cuando re-comprimir ayuda y cuando dividir. Gratis, en navegador.
- [Como Comprimir un JPG para Limites de Tamano de Adjunto de Correo](https://freetoolonline.com/guides/es/how-to-compress-a-jpg-for-email-attachment-limits.html) [lastmod=2026-07-06]
  Elige la calidad JPG correcta para encajar fotos bajo los limites de correo de 25 MB de Gmail / 20 MB de Outlook / 10 MB corporativo sin que la foto se vuelva masa.
- [Como comprimir un ZIP a un tamano especifico (2 / 25 MB, 100 KB)](https://freetoolonline.com/guides/es/how-to-compress-a-zip-file-to-a-specific-size.html) [lastmod=2026-07-06]
  Alcanzar un tamano ZIP exacto (2 MB, 25 MB tope de correo, 100 KB tope de formulario) no es deterministico. Tres cosas realmente lo deciden. El orden correcto de herramientas, por tope.
- [Como comprimir un Zip a un tamano menor](https://freetoolonline.com/guides/es/how-to-compress-zip-file-to-smaller-size.html) [lastmod=2026-07-06]
  Comprime un zip existente de nuevo, de la forma correcta: cuando re-zipear ayuda, cuando no hace nada, y la herramienta en el navegador para usar sin subir el archivo.
- [Como comprimir una carpeta](https://freetoolonline.com/guides/es/how-to-compress-a-folder.html) [lastmod=2026-07-06]
  Comprime una carpeta entera en un solo ZIP en tu navegador. Tres pasos desde arrastrar y soltar hasta una descarga menor de archivo unico. Gratis, sin instalacion.
- [Como Comprimir una Carpeta a Zip Online, Paso a Paso](https://freetoolonline.com/guides/es/how-to-zip-folder-online-step-by-step.html) [lastmod=2026-07-06]
  Comprime una carpeta a zip online en cinco pasos: elige la carpeta, manten la estructura, ajusta la compresion, nombra la salida, descarga. Solo navegador, con las trampas a evitar.
- [Cómo Comprimir una Carpeta ZIP Online Gratis - Guía paso a paso](https://freetoolonline.com/guides/es/compress-folder-to-zip-online-free.html) [lastmod=2026-07-06]
  Comprime una carpeta a ZIP online y gratis desde el navegador. Sin instalar nada, con contraseña opcional. Guía paso a paso. Revisado el 2026-05-19.
- [Como Comprimir una Imagen a 50KB Online (Gratis)](https://freetoolonline.com/guides/es/compress-image-online-to-50kb.html) [lastmod=2026-07-06]
  Deja un JPG, PNG o WebP por debajo de 50 KB online: convierte a JPG, baja el control de calidad y revisa la vista previa lado a lado antes de descargar. Gratis, sin cuenta.
- [Como comprobar la calidad de la camara de tu telefono](https://freetoolonline.com/guides/es/how-to-check-camera-quality-on-your-phone.html) [lastmod=2026-07-06]
  Una prueba de navegador de dos minutos para la calidad de la camara del telefono: resolucion, enfoque, poca luz, polvo en la lente. Que se ve bien, y hardware vs software.
- [Como convertir HEIC a JPG paso a paso](https://freetoolonline.com/guides/es/how-to-convert-heic-to-jpg-step-by-step.html) [lastmod=2026-07-06]
  Convierte HEIC a JPG paso a paso. Decodificacion server-side via libheif, descarga el JPG por HTTPS, listo para correo. Flujo de foto iPhone en segundos.
- [Como convertir texto en imagen (PNG) en linea gratis](https://freetoolonline.com/guides/es/how-to-turn-text-into-an-image-online.html) [lastmod=2026-07-06]
  Da estilo a tu texto en el navegador - elige una fuente, tamano, peso, colores, espaciado y una sombra, y descargalo como imagen PNG. Gratis, sin subir, sin cuenta.
- [Como Convertir una Foto del iPhone a JPG](https://freetoolonline.com/guides/es/how-to-convert-iphone-photo-to-jpg.html) [lastmod=2026-07-06]
  Convierte una foto del iPhone de HEIC a JPG sin iCloud, sin aplicacion instalada y sin escritorio. Recorrido en el navegador que maneja fotos unicas y lotes por igual.
- [Cómo convertir unidades en línea - gratis y sin registro](https://freetoolonline.com/guides/es/how-to-convert-units-online.html) [lastmod=2026-07-06]
  Convierte unidades en línea gratis: longitud, peso, temperatura, área y volumen. Todo en tu navegador, sin cuenta ni instalación.
- [Como crear una lista de tareas en linea - gratis y sin registro](https://freetoolonline.com/guides/es/how-to-make-a-to-do-list-online.html) [lastmod=2026-07-06]
  Crea una lista de tareas en linea gratis. Agrega tareas, marcalas como hechas y eliminalas; tu lista se guarda en el navegador, sin instalar apps y sin cuenta.
- [Como Dividir un GIF en Cuadros](https://freetoolonline.com/guides/es/how-to-split-a-gif-into-frames-for-editing.html) [lastmod=2026-07-06]
  Extrae cuadros individuales de un GIF animado para edicion, archivado o publicaciones en redes sociales. Recorrido en el navegador que mantiene los datos de tiempo originales por cuadro.
- [Como editar codigo online - gratis, en tu navegador](https://freetoolonline.com/guides/es/how-to-edit-code-online.html) [lastmod=2026-07-06]
  Edita codigo online en el navegador - resaltado de sintaxis para 18 lenguajes, temas claro y oscuro, abrir y guardar archivos. Sin subir nada.
- [Como ejecutar un chat de IA privado en el navegador - gratis](https://freetoolonline.com/guides/es/how-to-run-a-private-ai-chat-in-your-browser.html) [lastmod=2026-07-06]
  Ejecuta un chatbot de IA en el navegador; el modelo se carga en tu dispositivo, asi las conversaciones quedan privadas, sin subir nada ni cuenta. Requiere WebGPU.
- [Como elegir un color en linea - HEX, RGB y HSL](https://freetoolonline.com/guides/es/how-to-pick-a-color-online.html) [lastmod=2026-07-06]
  Elige un color en linea y ve sus valores HEX, RGB y HSL, paletas a juego, comprobacion de contraste, y guarda los favoritos - todo en tu navegador, sin cuenta.
- [Como elegir un nivel de compresion - calidad vs tamano de archivo, con ejemplos](https://freetoolonline.com/guides/es/how-to-choose-a-compression-level.html) [lastmod=2026-07-06]
  Elige el nivel correcto de compresion en /compress-image.html - 50, 70, 85 o 100. Rangos concretos de tamano de archivo, cuando cada nivel es suficiente y cuando seguir.
- [Como extraer un archivo en linea - ZIP, RAR, 7z (que ruta en este sitio hace que)](https://freetoolonline.com/guides/es/how-to-extract-a-file-online-zip-rar-7z.html) [lastmod=2026-07-06]
  Si buscaste "extraer archivo en linea" o "file zipper", esta es la regla de enrutamiento. Los archivos ZIP se extraen en linea via /unzip-file.html (server-upload, contrasena opcional). RAR / 7z se extraen localmente con la herramienta de tu SO - este sitio no tiene extractor server-side de .rar o .7z, y la guia lo dice honestamente.
- [Como firmar un PDF despues de eliminar su contrasena](https://freetoolonline.com/guides/es/how-to-sign-pdf-after-removing-a-password.html) [lastmod=2026-07-06]
  Como firmar un PDF despues de eliminar su contrasena de propietario - flujo legitimo para contratos y formularios, con notas legales y de privacidad.
- [Como grabar tu pantalla online - pantalla, camara o microfono](https://freetoolonline.com/guides/es/how-to-record-your-screen-online.html) [lastmod=2026-07-06]
  Graba tu pantalla, camara o microfono en el navegador, difumina rostros en tu dispositivo y descarga como WebM o MP4. Sin subir, sin instalar, sin cuenta.
- [Como Hacer un Archivo Zip Mas Pequeno](https://freetoolonline.com/guides/es/how-to-make-a-zip-file-smaller.html) [lastmod=2026-07-06]
  Haz un zip mas pequeno sin perder archivos: elige el nivel de compresion correcto, quita primero los medios ya comprimidos, divide si debe superar un limite de tamano de correo.
- [Como Leer y Comparar Hashes MD5 Correctamente: Mayusculas, Espacios, Formato Hex](https://freetoolonline.com/guides/es/read-and-compare-md5-hashes-correctly.html) [lastmod=2026-07-06]
  Dos hashes MD5 coinciden cuando sus 32 caracteres hex concuerdan despues de pasar a minusculas y eliminar espacios. Recorrido por las 4 diferencias cosmeticas y las reales.
- [Como Ocultar un Mensaje en una Imagen (Esteganografia)](https://freetoolonline.com/guides/es/how-to-hide-a-message-in-an-image.html) [lastmod=2026-07-06]
  Como ocultar un mensaje de texto secreto dentro de una imagen PNG y leerlo de nuevo, opcionalmente con contrasena - gratis, en tu navegador, nada se sube.
- [Como probar un teclado en linea paso a paso](https://freetoolonline.com/guides/es/how-to-test-a-keyboard-online-step-by-step.html) [lastmod=2026-07-06]
  Una prueba de teclado en navegador de 60 segundos: abre la pagina, presiona cada tecla, ve como cada una se resalta. Detecta teclas que no funcionan, teclas pegadas y fallos de tecla modificadora sin instalar nada.
- [Como probar una pantalla tactil por puntos muertos](https://freetoolonline.com/guides/es/how-to-test-a-touchscreen-for-bad-spots.html) [lastmod=2026-07-06]
  Una verificacion en navegador en 60 segundos de areas que no responden en pantallas tactiles de telefono, tablet o laptop. Que significa cada patron de fallo y cuando llamar a garantia.
- [Como recortar y rotar una imagen](https://freetoolonline.com/guides/es/how-to-crop-and-rotate-an-image.html) [lastmod=2026-07-06]
  Recorta y rota una imagen en el navegador sin perder el original. Recorte preciso por pixel, rotacion sin perdidas de 90 grados, y donde el flag de rotacion EXIF importa.
- [Como Reducir el Tamano de Archivo Zip Online (Gratis)](https://freetoolonline.com/guides/es/how-to-reduce-zip-file-size-online.html) [lastmod=2026-07-06]
  Reduce el tamano de archivo zip online y gratis. Por que tu zip es grande, que comprime bien, y tres tacticas para encajar en cualquier limite de correo o subida de 25 MB.
- [Como Reducir el Tamano de un Archivo ZIP - que comprime, que no](https://freetoolonline.com/guides/es/how-to-reduce-zip-file-size.html) [lastmod=2026-07-06]
  Por que la mayoria de ZIPs no se encogen y como reducir uno de verdad - que comprime (texto, CSV, codigo fuente), que no (JPG, MP4, MP3), y el flujo que funciona.
- [Como Reducir el Tamano de un Archivo Zip Online - Guia Gratuita](https://freetoolonline.com/guides/es/mengecilkan-ukuran-zip.html) [lastmod=2026-07-06]
  Aprende como reducir el tamano de un archivo zip online: selecciona los archivos, comprime y descarga un archivo mas pequeno en el navegador. Paso a paso, sin instalacion. Ultima revision 2026-06-19.
- [Como Rellenar un Formulario PDF Online - Sin Subir el Archivo](https://freetoolonline.com/guides/es/pdf-filler-form-editor-step-by-step.html) [lastmod=2026-07-06]
  Guia paso a paso para rellenar los campos de un formulario PDF existente online, directo en el navegador, sin subir el archivo y sin cuenta.
- [Como revisar la pantalla de un laptop en busca de pixeles muertos y fugas de luz](https://freetoolonline.com/guides/es/cek-layar-laptop.html) [lastmod=2026-07-06]
  Revisa la pantalla del laptop en tu navegador: llenala de rojo, verde, azul, negro, blanco y amarillo para hallar pixeles muertos o atascados. Gratis, sin instalar.
- [Como saber si un JPG fue comprimido demasiado](https://freetoolonline.com/guides/es/how-to-tell-if-a-jpg-was-compressed-too-much.html) [lastmod=2026-07-06]
  Lee el valor de calidad con el que se guardo un JPG existente, reconoce artefactos visibles de sobre-compresion, y decide si re-codificar va a ayudar o perjudicar.
- [Como visualizar datos online - crea un grafico de tus numeros](https://freetoolonline.com/guides/es/how-to-visualize-data-online.html) [lastmod=2026-07-06]
  Convierte filas de datos en un grafico en tu navegador. Pega CSV, JSON o Etiqueta, Valor, elige un tipo de grafico - sin subir nada y sin cuenta.
- [Compresion ZIP - guia de compresion zip](https://freetoolonline.com/guides/es/zip-compress.html) [lastmod=2026-07-06]
  Guia de compresion ZIP: cuando ZIP encoge archivos, cuando no, y como agrupar una carpeta en un archivo online. Gratis, sin instalar. Ultima revision: 2026-05-18.
- [Compresor de Archivo Zip Online - Agrupa y Encoge Carpetas en un ZIP](https://freetoolonline.com/guides/es/zip-file-compressor-online.html) [lastmod=2026-07-06]
  Compresor de archivo zip online: agrupa archivos o una carpeta entera en un .zip, establece una contrasena opcional y descarga. Gratis, en el navegador, sin instalacion.
- [Compresor de archivo ZIP online - guia](https://freetoolonline.com/guides/es/online-zip-file-compressor.html) [lastmod=2026-07-06]
  Guia del compresor de archivo ZIP online: agrupa archivos o una carpeta entera en un .zip, define una clave opcional y descarga. Gratis, en el navegador, sin instalar.
- [Compresor de Archivos Online: ZIP de una Carpeta vs Comprimir una Imagen](https://freetoolonline.com/guides/es/file-compressor-online-when-to-zip-vs-when-to-compress-image.html) [lastmod=2026-07-06]
  Guia de ruteo para la duda del compresor de archivos: cuando hacer ZIP de una carpeta para transporte vs cuando comprimir una sola imagen para reducir bytes. Regla de 30 segundos, cinco pasos.
- [Compresor de Archivos vs ZIP](https://freetoolonline.com/guides/es/file-compressor-vs-zip-what-to-pick.html) [lastmod=2026-07-06]
  "Compresor de archivos" es demasiado generico. Elige por tipo de archivo: ZIP una carpeta, comprime fotos, convierte HEIC, agrupa PDFs o usa un enlace de transferencia para video.
- [Compresor de Archivos: Elige por Tipo de Archivo](https://freetoolonline.com/guides/es/file-compressor.html) [lastmod=2026-07-06]
  Compresor de archivos gratuito que elige la herramienta correcta del navegador por lo que tienes: ZIP una carpeta, comprime fotos, convierte HEIC, agrupa PDFs o usa un enlace de transferencia.
- [Compresor de Tamano de Archivo Zip - Guia Online Gratis](https://freetoolonline.com/guides/es/zip-file-size-compressor.html) [lastmod=2026-07-06]
  Use un compresor de tamano de archivo zip online para agrupar una carpeta de archivos en un solo .zip y reducir el tamano total antes de enviar. Gratis, sin instalar. Ultima revision 2026-05-19.
- [Compresor ZIP Online - cuando encoge una carpeta y cuando no](https://freetoolonline.com/guides/es/zip-compressor-online.html) [lastmod=2026-07-06]
  Un compresor zip online agrupa una carpeta de archivos en un .zip. El recorte de tamano depende del tipo de entrada - el texto se encoge, JPG/MP4 no. Enlace de la herramienta dentro.
- [Compresor ZIP: Comprimir Archivos en un Archivo ZIP Mas Pequeno](https://freetoolonline.com/guides/es/zip-compressor.html) [lastmod=2026-07-06]
  Una guia breve orientada a la tarea del lector sobre el uso de un compresor zip: cuando elegir la compresion zip para una carpeta de archivos, lo que el archivo .zip resultante preserva y no preserva, y donde vive la herramienta en el navegador.
- [Comprimir Archivo Zip Online - Guia Completa en el Navegador](https://freetoolonline.com/guides/es/kompres-file-zip.html) [lastmod=2026-07-06]
  Guia de compresion de archivos zip online en el navegador. Agrupa archivos y carpetas en un solo archivo .zip, anade contrasena opcional, descarga en segundos. Gratis, sin instalacion.
- [Comprimir Carpeta Online - gratis, basado en navegador, sin instalación](https://freetoolonline.com/guides/es/compress-folder-online.html) [lastmod=2026-07-06]
  Cómo comprimir una carpeta online: arrastra la carpeta, el servicio empaqueta un .zip, descarga. Basado en navegador, sin instalación, contraseña opcional. Revisado 2026-05-24.
- [Comprimir JPEG Sin Perder Calidad: Calidad vs Tamaño](https://freetoolonline.com/guides/es/compress-jpeg-without-losing-quality-quality-vs-size.html) [lastmod=2026-07-06]
  Elige la configuración de calidad JPEG correcta: cuándo 75 parece idéntico al original, cuándo 95 desperdicia bytes, y cuándo la compresión automática por IA supera a ambos.
- [Comprimir PDF Online Gratis - Reduce el Tamano del PDF](https://freetoolonline.com/guides/es/compress-pdf-online-free.html) [lastmod=2026-07-06]
  Reduce un PDF gratis online: aplana archivos llenos de formularios o extrae-comprime-reconstruye PDF escaneados con nuestras herramientas. Sin cuenta. Revisado el 2026-06-11.
- [Comprimir Tamaño ZIP: ¿Cuánto Más Pequeño Quedará Realmente el Archivo?](https://freetoolonline.com/guides/es/compress-zip-size.html) [lastmod=2026-07-06]
  ¿Cuánto puede reducir la compresión ZIP el tamaño de una carpeta? Heurística de compresibilidad más una ruta en el navegador al creador. Gratis, sin instalación. Última revisión 2026-05-15.
- [Comprimir un archivo ZIP a un tamano menor: cuando el archivo realmente se reduce](https://freetoolonline.com/guides/es/compress-zip-file-to-smaller-size.html) [lastmod=2026-07-06]
  Guia practica para hacer mas pequeno un archivo ZIP: que entradas realmente se reducen, cuales no, y la herramienta en el navegador que construye el archivo. Ultima revision: 2026-05-17.
- [Comprimir una Carpeta para Correo](https://freetoolonline.com/guides/es/how-to-compress-a-folder-for-email.html) [lastmod=2026-07-06]
  Comprime una carpeta para correo en menos de un minuto. Paso a paso para Windows y macOS, salvedades de tamano de correo en 2026 y cuando anadir una contrasena antes de compartir.
- [Comprimir vs Convertir una Imagen](https://freetoolonline.com/guides/es/when-to-compress-vs-convert-an-image.html) [lastmod=2026-07-06]
  Comprimir o convertir una imagen? Respuesta en 30 segundos - reglas de decision para tamano de archivo, eleccion de formato, compromisos de calidad y la herramienta correcta para cada trabajo.
- [Comprimir Zip - Cuando el archivo encoge el tamano](https://freetoolonline.com/guides/es/kompres-zip.html) [lastmod=2026-07-06]
  Guia de compresion zip: cuando el formato .zip realmente encoge el tamano, cuando no, y donde vive la herramienta creadora de archivos en el navegador. Gratis, sin instalacion.
- [Comprimir ZIP: cuando la compresion ZIP ahorra espacio (y cuando no)](https://freetoolonline.com/guides/es/compress-zip.html) [lastmod=2026-07-06]
  Una guia corta orientada al lector sobre comprimir archivos en ZIP: cuando la compresion ZIP realmente ahorra espacio, cuando no, y donde esta el creador ZIP en el navegador.
- [Comprobación de Cámara - Lo Que Significa y Qué Herramienta Usar](https://freetoolonline.com/guides/es/camera-check.html) [lastmod=2026-07-06]
  Comprobación de cámara es el sinónimo cotidiano de "prueba de cámara": el flujo en navegador que pide al SO el feed de la webcam, muestra preview y confirma que el objetivo está abierto.
- [Contador de Palabras Online: Guia Paso a Paso](https://freetoolonline.com/guides/es/word-counter-step-by-step.html) [lastmod=2026-07-06]
  Una guia paso a paso del Word Counter gratuito: que significa cada uno de los seis numeros en vivo y como se estima el tiempo de lectura.
- [Contrasena MD5: como hacer hash de una contrasena y cuando MD5 esta mal](https://freetoolonline.com/guides/es/md5-password.html) [lastmod=2026-07-06]
  Guia de contrasena MD5: pegue una cadena de contrasena, obtenga un fingerprint de 32-hex, y aprenda cuando MD5 es seguro para checksums y cuando bcrypt o argon2id es la eleccion correcta.
- [Contrasena PDF - Propietario vs Usuario](https://freetoolonline.com/guides/es/pdf-password-types-owner-vs-user.html) [lastmod=2026-07-06]
  Tipos de contrasena PDF - contrasena de propietario vs usuario, que bloquea cada una, cuando establecer cada una, como elegir contrasenas que protegen el documento de verdad.
- [Conversor de Archivo Zip - Que Hace Realmente](https://freetoolonline.com/guides/es/zip-file-converter-what-it-actually-does.html) [lastmod=2026-07-06]
  "Conversor de archivo zip" es la busqueda equivocada. ZIP es un contenedor, no un formato. Tres intenciones reales: agrupar, extraer o comprimir imagenes. Elige por intencion en 30 segundos.
- [Conversor de Video a GIF Cuando Usar](https://freetoolonline.com/guides/es/video-gif-converter-when.html) [lastmod=2026-07-06]
  Conversor de Video a GIF Cuando Usar - cuando abrir el Conversor de Video a GIF sirve para la tarea y que esperar cuando sirve.
- [Conversor de Video a GIF Paso a Paso](https://freetoolonline.com/guides/es/video-gif-converter-step-by-step.html) [lastmod=2026-07-06]
  Conversor de Video a GIF Paso a Paso - los pasos exactos para ejecutar el Conversor de Video a GIF desde abrir hasta descargar el resultado.
- [Conversor De Video A Gif Vs Alternativas](https://freetoolonline.com/guides/es/video-gif-converter-vs-alternatives.html) [lastmod=2026-07-06]
  Conversor De Video A Gif Vs Alternativas - como se compara el Conversor de Video a GIF con una aplicacion de escritorio o un servicio basado en subida.
- [Conversor de Vídeo Online Gratis: Convierte a MP4, MOV, MP3 y Más](https://freetoolonline.com/guides/es/video-converter-online-free.html) [lastmod=2026-07-06]
  Convierte vídeo online gratis a MP4, WebM, MOV, MP3 o WAV. Recorta un segmento primero, sin necesidad de cuenta. Procesamiento en el servidor para archivos grandes o largos.
- [Convertidor de archivo ZIP - guia rapida](https://freetoolonline.com/guides/es/zip-file-converter.html) [lastmod=2026-07-06]
  Guia rapida para el convertidor de archivo ZIP en freetoolonline.com. Comprime carpetas y archivos en un archivo ZIP online, gratis, sin instalar. Ultima revision: 2026-05-19.
- [Convertidor de video HD online - cuando usar](https://freetoolonline.com/guides/es/hd-video-converter-when.html) [lastmod=2026-07-06]
  Convertidor de Video HD Online Cuando Usar - referencia rapida con Convertidor de Video HD Online.
- [Convertidor de video HD online - paso a paso](https://freetoolonline.com/guides/es/hd-video-converter-step-by-step.html) [lastmod=2026-07-06]
  Guia paso a paso para convertir video HD en el navegador - cambia el formato o extrae el audio con FFmpeg.wasm, sin subir nada y sin instalar.
- [Convertidor de video HD online vs alternativas](https://freetoolonline.com/guides/es/hd-video-converter-vs-alternatives.html) [lastmod=2026-07-06]
  Convertidor de Video HD Online Vs Alternativas - referencia rapida con Convertidor de Video HD Online.
- [Convertidor GIF a Fotogramas - Extrae Cada Fotograma como PNG o JPG](https://freetoolonline.com/guides/es/gif-to-frames-converter.html) [lastmod=2026-07-06]
  Convierte un GIF animado en fotogramas individuales. Sube el archivo, elige PNG o JPG y descarga cada fotograma como imagen separada. Sin instalacion. Revisado 2026-06-10.
- [Convertidor HEIC vs JPG](https://freetoolonline.com/guides/es/heic-vs-jpg-converter-when-each-wins.html) [lastmod=2026-07-06]
  Cuando convertir HEIC a JPG, cuando mantener el HEIC original y cuando ninguna ruta gana. Reglas de decision para sincronizacion iCloud, destinatarios Windows y edicion.
- [Convertir 100 Fotos HEIC a JPG](https://freetoolonline.com/guides/es/how-to-convert-100-heic-photos-to-jpg.html) [lastmod=2026-07-06]
  Como convertir mas de 100 fotos HEIC a JPG en el navegador sin subir. Flujo por lotes, configuracion de calidad, preservacion de EXIF y rutas para Windows/Mac.
- [Convertir milisegundos a fecha - guia](https://freetoolonline.com/guides/es/convert-milliseconds-to-date.html) [lastmod=2026-07-06]
  Convertir milisegundos a fecha online: pega un timestamp Unix de 13 digitos y lee la fecha y hora locales. Gratis, solo en navegador, sin instalar. Ultima revision: 2026-05-17.
- [Correccion de errores del codigo QR y fallos de escaneo](https://freetoolonline.com/guides/es/qr-code-error-correction-and-scan-failures.html) [lastmod=2026-07-06]
  Si un codigo QR no escanea, la causa suele ser una de cuatro: tamano del payload, nivel de correccion de errores, contraste o escala de impresion. Mira cual.
- [Crear Archivo ZIP Online - qué hace la herramienta y cuándo el ZIP ahorra espacio](https://freetoolonline.com/guides/es/make-zip-file-online.html) [lastmod=2026-07-06]
  Crear archivo ZIP online: cuándo el ZIP realmente ahorra espacio, cuándo no, y cómo enviar archivos o una carpeta como una sola descarga. Gratis, sin instalación.
- [Crear Archivo Zip Online (Creador ZIP Gratuito, Sin Instalación, Sin Cuenta)](https://freetoolonline.com/guides/es/create-zip-file-online.html) [lastmod=2026-07-06]
  Crea un archivo ZIP en línea desde una carpeta o selección de varios archivos. Creador gratuito en /zip-tools/zip-file.html; sin instalación en ningún extremo; el archivo se elimina automáticamente tras una retención breve. Última revisión 2026-05-18.
- [Cronometro Online: Guia Paso a Paso](https://freetoolonline.com/guides/es/stopwatch-step-by-step.html) [lastmod=2026-07-06]
  Start, Lap, Stop y Reset - vea exactamente que hace cada control y como funciona la lista de vueltas antes de cronometrar algo.
- [CSS Unminifier vs Prettier: Cuando Usar Cada Uno (Leer CSS Enviado o Formatear Fuente)](https://freetoolonline.com/guides/es/css-unminifier-vs-prettier-when-to-use-each.html) [lastmod=2026-07-06]
  Cuando CSS Unminifier es la herramienta correcta para leer CSS enviado rapidamente, cuando Prettier es la herramienta correcta para formatear fuente que vas a commitear, y lo que ninguno puede recuperar despues de un build con tree-shaking.
- [CSV vs JSON - Cuándo Usar Cada Formato de Datos](https://freetoolonline.com/guides/es/csv-vs-json-data-formats.html) [lastmod=2026-07-06]
  Formatos de datos CSV vs JSON - cuándo elegir filas-y-columnas vs objetos estructurados, con compensaciones de parsing, tamaño y herramientas para flujos 2026.
- [Cuando Usar la Calculadora de Porcentaje](https://freetoolonline.com/guides/es/percentage-calculator-when.html) [lastmod=2026-07-06]
  Calculadora de Porcentaje: cuando usar Percentage Calculator y que esperar cuando es la herramienta adecuada para tu calculo.
- [Cuando Usar la Grabadora de Voz En Linea](https://freetoolonline.com/guides/es/voice-recorder-when.html) [lastmod=2026-07-06]
  Cuando Usar la Grabadora de Voz En Linea - cuando abrir el Online Voice Recorder es adecuado y que esperar cuando lo es.
- [Cuando Usar un Mezclador de Listas Aleatorio](https://freetoolonline.com/guides/es/random-list-shuffler-when.html) [lastmod=2026-07-06]
  Cuando un mezclador de listas aleatorio es la opcion correcta: orden de turnos, asignacion de tareas y sorteos - y cuando usar una herramienta de eleccion unica en su lugar.
- [Decodificar MD5: lo que los lectores usualmente quieren y a donde ir](https://freetoolonline.com/guides/es/md5-decode.html) [lastmod=2026-07-06]
  Guia de decodificacion MD5: MD5 es de una sola via, asi que "decodificar" usualmente significa generar un hash, buscar un texto plano conocido, o elegir un hash diferente. Rutas a la herramienta correcta.
- [Desbloqueador de contrasena ZIP: cuando una herramienta online puede quitarla (y cuando no puede romperla)](https://freetoolonline.com/guides/es/zip-password-unlocker.html) [lastmod=2026-07-06]
  Lo que significa desbloqueador de contrasena ZIP online: quitar una contrasena que ya conoce de un archivo .zip; las contrasenas desconocidas no se pueden romper. Revisado 2026-05-18.
- [Desbloqueador de Zip Online: Usa esto cuando sabes la contrasena](https://freetoolonline.com/guides/es/zip-unlocker-online.html) [lastmod=2026-07-06]
  Un "desbloqueador de zip online" es la herramienta correcta solo cuando ya sabes la contrasena. Abre el removedor en el navegador, ingresa la contrasena, descarga la copia desbloqueada.
- [Desbloquear archivo ZIP online - guia](https://freetoolonline.com/guides/es/unlock-zip-file-online.html) [lastmod=2026-07-06]
  Desbloquea un archivo ZIP online: elige la ruta para ZIPs protegidos con contrasena vs ZIPs simples, ejecuta la herramienta correcta gratis en tu navegador. Ultima revision: 2026-05-20.
- [Descifrador MD5 - Busqueda Inversa y Generador de Hash Online](https://freetoolonline.com/guides/es/md5-decrypter.html) [lastmod=2026-07-06]
  Usa la herramienta MD5 gratuita para generar hashes, comparar checksums o buscar un valor conocido. Funciona en tu navegador - sin carga, sin cuenta.
- [Descifrar Hash MD5: Cuando Funciona el Lookup, Cuando No](https://freetoolonline.com/guides/es/md5-hash-decrypt.html) [lastmod=2026-07-06]
  Descifrar hash MD5 - la pregunta practica. La busqueda inversa funciona para entradas cortas y comunes que estan en rainbow tables y diccionarios; para secretos aleatorios, la fuerza bruta es el piso.
- [Descifrar MD5 online: por que no se puede, y el atajo practico](https://freetoolonline.com/guides/es/md5-decrypt-online.html) [lastmod=2026-07-06]
  MD5 es de una sola via - no se puede descifrar. Esto es lo que "descifrar MD5 online" realmente significa y el camino seguro para buscar hashes MD5 conocidos. Ultima revision 2026-05-18.
- [Desminificar JS: Restaurar la Legibilidad de JavaScript Minificado (Herramienta Gratis en el Navegador)](https://freetoolonline.com/guides/es/unminify-js.html) [lastmod=2026-07-06]
  Desminificar JavaScript minificado online gratis. Pegue el bundle, obtenga codigo indentado con saltos de linea reintroducidos - sin instalar, en el navegador. Ultima revision 2026-05-20.
- [Despertador Online: Guia Paso a Paso](https://freetoolonline.com/guides/es/alarm-clock-step-by-step.html) [lastmod=2026-07-06]
  Defina la hora de la alarma, observe la alerta en pantalla, y vea exactamente que pasa - y que no pasa - cuando suena.
- [Dividir GIF en Fotogramas Online - extraer cada fotograma de la animación](https://freetoolonline.com/guides/es/split-gif-into-frames.html) [lastmod=2026-07-06]
  Guía Dividir GIF en Fotogramas: extrae cada fotograma de la animación como una imagen separada, en el navegador, sin instalación. Paso a paso, gratis. Última revisión 2026-05-14.
- [Dividir PDF Online Gratis](https://freetoolonline.com/guides/es/split-pdf-online-free.html) [lastmod=2026-07-06]
  Divide un PDF online gratis: extrae un intervalo de paginas a un nuevo archivo, o separa cada pagina en su propio PDF. Sin cuenta, sin instalacion. Ultima revision 2026-06-14.
- [Editor de Fotos Online Gratis - Recortar, Redimensionar y Filtrar en el Navegador](https://freetoolonline.com/guides/es/photo-editor-online-pixlr.html) [lastmod=2026-07-06]
  Editor de fotos gratis en el navegador: recortar, redimensionar, filtros y texto, sin subir, sin cuenta. Edita fotos en tu equipo. Last reviewed 2026-07-02.
- [Editor de Fotos vs App de Graficos vs Batch](https://freetoolonline.com/guides/es/photo-editor-vs-graphics-app-vs-batch-processor.html) [lastmod=2026-07-06]
  Tres categorias de herramientas de imagen resuelven tres problemas diferentes. Editor de fotos para una imagen, app de graficos para diseno, batch processor para muchos archivos a la vez.
- [Eliminador de Fondo con IA - Cuando Usarlo](https://freetoolonline.com/guides/es/ai-background-remover-when.html) [lastmod=2026-07-06]
  Cuando usar el Eliminador de Fondo con IA en el navegador. Procesamiento local, sin subida, sin cuenta necesaria.
- [Eliminador de Fondo con IA - Guia Paso a Paso](https://freetoolonline.com/guides/es/ai-background-remover-step-by-step.html) [lastmod=2026-07-06]
  Elimina el fondo de una imagen en tres pasos con el Eliminador de Fondo con IA. Todo en el navegador, sin subida.
- [Eliminador de Fondo con IA vs Alternativas](https://freetoolonline.com/guides/es/ai-background-remover-vs-alternatives.html) [lastmod=2026-07-06]
  Compara el Eliminador de Fondo con IA con aplicaciones de escritorio y servicios en linea. Privacidad, sin cuenta, sin subida.
- [Eliminar Lineas Duplicadas Paso a Paso: Limpia una Lista en tu Navegador](https://freetoolonline.com/guides/es/remove-duplicate-lines-step-by-step.html) [lastmod=2026-07-06]
  Una guia paso a paso de la herramienta gratuita Remove Duplicate Lines: que cuenta como duplicado, que linea conserva y como se compara con una hoja de calculo o la linea de comandos.
- [Enlace de Descarga No Aparece Tras Conversión - 5 Correcciones](https://freetoolonline.com/guides/es/download-link-not-appearing-after-conversion-five-fixes.html) [lastmod=2026-07-06]
  ¿La subida terminó pero el enlace de descarga nunca apareció? Cinco causas concretas y soluciones para herramientas conversoras online - en orden de probabilidad.
- [Escalera de Edicion PDF - Elige la Herramienta PDF Correcta](https://freetoolonline.com/guides/es/pdf-editing-ladder.html) [lastmod=2026-07-06]
  Escalera de decision para edicion PDF. Dividir, unir, extraer, proteger, aplanar, convertir - elige la herramienta correcta por intencion en 30 segundos. 12 herramientas PDF mapeadas al flujo.
- [Escaner de Codigo QR - Cuando Usar](https://freetoolonline.com/guides/es/qr-code-scanner-when.html) [lastmod=2026-07-06]
  Escaner de Codigo QR - cuando abrirlo vale la pena y que esperar cuando encaja.
- [Escaner de Codigo QR - Paso a Paso](https://freetoolonline.com/guides/es/qr-code-scanner-step-by-step.html) [lastmod=2026-07-06]
  Escaner de Codigo QR - los pasos exactos para usar la herramienta desde abrir hasta el resultado.
- [Escaner de Codigo QR vs Alternativas](https://freetoolonline.com/guides/es/qr-code-scanner-vs-alternatives.html) [lastmod=2026-07-06]
  Escaner de Codigo QR comparado con aplicacion de escritorio o servicio en linea con carga.
- [Espejo de Webcam vs Flip Explicado: Por Qué Tu Preview de Cámara Invierte el Texto](https://freetoolonline.com/guides/es/camera-mirror-vs-flip-explained.html) [lastmod=2026-07-06]
  Por qué tu preview de webcam invierte texto y el vídeo guardado generalmente no. Procedimiento de prueba de 30 segundos más pasos exactos para desactivar espejo en OBS, Zoom, Google Meet y Microsoft Teams.
- [Este Numero Largo es un Timestamp? Milisegundos vs Segundos](https://freetoolonline.com/guides/es/long-number-millisecond-or-second.html) [lastmod=2026-07-06]
  Un numero pegado de 10, 13, 16 o 19 digitos puede ser segundos Unix, milisegundos, microsegundos, nanosegundos o solo un ID - aqui esta como saberlo rapido.
- [Extractor de Frames GIF - extrae fotogramas de un GIF animado](https://freetoolonline.com/guides/es/gif-frame-extractor.html) [lastmod=2026-07-06]
  Guia paso a paso para extraer fotogramas de cualquier GIF animado: elige PNG o JPG, ajusta FPS y descarga cada uno. Ultima revision 2026-05-14.
- [Extraer Frames de GIF: PNG o JPG, ¿Qué Formato Elegir?](https://freetoolonline.com/guides/es/extract-gif-frames-png-vs-jpg-which-format.html) [lastmod=2026-07-06]
  PNG preserva el canal alfa y es sin pérdidas para edición; JPG es más pequeño e ideal para miniaturas. Cuándo elegir cada uno al extraer frames de GIF.
- [Extraer Frames de un GIF](https://freetoolonline.com/guides/es/how-to-extract-frames-from-a-gif-for-a-social-post.html) [lastmod=2026-07-06]
  Como extraer frames de un GIF para una publicacion social - elegir un frame heroe, preservar transparencia y entregar una imagen estatica que carga rapido.
- [FFmpeg Online vs FFmpeg Local - Cuando Gana Cada Uno](https://freetoolonline.com/guides/es/ffmpeg-online-vs-local-ffmpeg-when-each-wins.html) [lastmod=2026-07-06]
  FFmpeg online (wasm de navegador) vs FFmpeg CLI local - limites de tamano, privacidad, velocidad y cobertura de codec. Cuando elegir cada uno para procesamiento de video/audio.
- [FFmpeg Online vs Video Converter - Que Herramienta Abrir](https://freetoolonline.com/guides/es/ffmpeg-online-vs-video-converter-which-to-pick.html) [lastmod=2026-07-06]
  Guia de enrutamiento para la tarea "ffmpeg online": cuando abrir FFmpeg Online y cuando la ruta especifica del formato Video Converter o GIF Maker es mas rapida. Cinco reglas de enrutamiento, una decision en 30 segundos.
- [Formateador de Codigo Paso a Paso: JS, CSS, HTML y JSON](https://freetoolonline.com/guides/es/code-formatter-beautifier-step-by-step.html) [lastmod=2026-07-06]
  Guia paso a paso para formatear JavaScript, CSS, HTML y JSON con el formateador de codigo gratuito - lo que necesita cada lenguaje y cuando usar el JSON Parser.
- [Formateador JSON online - cuando usar](https://freetoolonline.com/guides/es/json-formatter-when.html) [lastmod=2026-07-06]
  Formateador JSON Online Cuando Usar - referencia rapida con Formateador JSON Online.
- [Formateador JSON online - paso a paso](https://freetoolonline.com/guides/es/json-formatter-step-by-step.html) [lastmod=2026-07-06]
  Formateador JSON Online Paso a Paso - referencia rapida con Formateador JSON Online.
- [Formateador JSON online vs alternativas](https://freetoolonline.com/guides/es/json-formatter-vs-alternatives.html) [lastmod=2026-07-06]
  Formateador JSON Online Vs Alternativas - referencia rapida con Formateador JSON Online.
- [Formato de foto del iPhone explicado](https://freetoolonline.com/guides/es/iphone-photo-format-explained-heic-jpg-png-raw.html) [lastmod=2026-07-06]
  Las fotos del iPhone pueden ser HEIC, JPG, PNG o RAW. Aqui esta lo que cada formato es, cuando iOS lo usa, y el correcto para convertir antes de compartir fuera de Apple.
- [Fotogramas GIF vs Tasa de Fotogramas GIF (FPS): Cual Realmente Necesitas?](https://freetoolonline.com/guides/es/gif-frames-extract-vs-frame-rate-fps-explained.html) [lastmod=2026-07-06]
  Los fotogramas GIF son las imagenes fijas dentro de un GIF animado; la tasa de fotogramas GIF (FPS) es la velocidad de reproduccion. Esta guia te dice cual coincide con tu tarea en una frase y como elegir el FPS correcto al extraer fotogramas.
- [Generador de Codigo QR - Mejores Practicas](https://freetoolonline.com/guides/es/qr-code-generator-best-practices.html) [lastmod=2026-07-06]
  Un codigo QR que siempre escanea es un pequeno conjunto de elecciones: correccion de errores, contraste, tamano, payload. Cuales funcionan y cuales fallan.
- [Generador de Contrasenas Paso a Paso: Crea una Contrasena Fuerte en tu Navegador](https://freetoolonline.com/guides/es/password-generator-step-by-step.html) [lastmod=2026-07-06]
  Una guia paso a paso del Password Generator gratuito: fija la longitud, elige los conjuntos de caracteres, lee la etiqueta de fuerza y copia una contrasena aleatoria fuerte - todo en tu navegador.
- [Generador de Contrasenas vs. Alternativas: Cual Usar](https://freetoolonline.com/guides/es/password-generator-vs-alternatives.html) [lastmod=2026-07-06]
  Compara el generador de contrasenas en el navegador con escribir la tuya, usar el navegador o un gestor - descubre que enfoque produce las contrasenas mas fuertes y practicas.
- [Generador de Contrasenas: Cuando Usarlo](https://freetoolonline.com/guides/es/password-generator-when.html) [lastmod=2026-07-06]
  Descubre cuando usar un generador de contrasenas en el navegador: creacion de cuentas, restablecimiento de contrasenas y cualquier inicio de sesion que exija contrasenas unicas.
- [Generador de Numero Aleatorio Online: Guia Paso a Paso](https://freetoolonline.com/guides/es/random-number-generator-step-by-step.html) [lastmod=2026-07-06]
  Guia paso a paso del Generador de Numero Aleatorio Online: como definir Min y Max, leer el resultado, y en que se diferencia del dice roller y coin flip.
- [GIF a Fotograma - extrae cada fotograma como PNG o JPG](https://freetoolonline.com/guides/es/gif-to-frame.html) [lastmod=2026-07-06]
  Carga un GIF animado y extrae cada fotograma como PNG o JPG por separado. Sin instalacion. Archivos eliminados automaticamente. Revisado el 2026-06-10.
- [GIF en Frames: Guarda cada frame de animacion como PNG o JPG](https://freetoolonline.com/guides/es/gif-into-frames.html) [lastmod=2026-07-06]
  Convierte un GIF en frames individuales online. Sube la animacion, elige PNG o JPG, y descarga cada frame como una imagen estatica. Gratis, sin instalar. Ultima revision: 2026-05-20.
- [Grabadora de Voz En Linea Paso a Paso](https://freetoolonline.com/guides/es/voice-recorder-step-by-step.html) [lastmod=2026-07-06]
  Grabadora de Voz En Linea Paso a Paso - los pasos exactos para usar el Online Voice Recorder desde abrir hasta descargar el resultado.
- [Grabadora de Voz En Linea Versus Alternativas](https://freetoolonline.com/guides/es/voice-recorder-vs-alternatives.html) [lastmod=2026-07-06]
  Grabadora de Voz En Linea Versus Alternativas - como Online Voice Recorder se compara con una aplicacion de escritorio o un servicio en linea basado en subida de archivos.
- [Guía de Prueba de Píxel Muerto](https://freetoolonline.com/guides/es/dead-pixel-testing-guide.html) [lastmod=2026-07-06]
  Guía de prueba de píxel muerto - píxel muerto vs atascado vs caliente, comprobaciones de color a pantalla completa, pasos de recuperación, y cuándo se justifica el reemplazo en garantía.
- [Hash MD5 en el navegador - que hacen las llamadas tipo `common::md5::gethash64string`](https://freetoolonline.com/guides/es/common-md5-gethash64string.html) [lastmod=2026-07-06]
  Hash MD5 explicado para lectores que buscan nombres de metodos al estilo framework. Que devuelve un MD5, donde aplica la busqueda inversa en cache, y cuando no usar MD5.
- [HEIC a JPG: que hace realmente el convertidor](https://freetoolonline.com/guides/es/heic-to-jpg-claims-what-actually-works.html) [lastmod=2026-07-06]
  Como /heic-to-jpg.html funciona en realidad: decodificacion libheif, re-codificacion JPG, controles EXIF + calidad, mas las afirmaciones que la herramienta NO hace. Lee antes de subir.
- [HEIC vs JPG vs WebP](https://freetoolonline.com/guides/es/heic-vs-jpg-vs-webp.html) [lastmod=2026-07-06]
  Las fotos de iPhone son HEIC; Windows y Android esperan JPG. Lo que cada formato comprime bien, cuando WebP es la eleccion correcta para web y como convertir entre ellos.
- [Herramienta de Diff en Linea - Guia para Comparar Dos Textos Lado a Lado](https://freetoolonline.com/guides/es/online-diff-tool.html) [lastmod=2026-07-06]
  Guia de la herramienta de diff en linea: pega dos bloques de texto y lee las lineas anadidas, eliminadas y modificadas lado a lado en tu navegador. Sin instalacion, sin subida.
- [Herramienta ZIP Online (Gratis, Servicio de Construccion en el Navegador)](https://freetoolonline.com/guides/es/i-love-zip.html) [lastmod=2026-07-06]
  Herramienta zip online: convierte una carpeta o seleccion de varios archivos en un .zip mediante un servicio de construccion privado. Gratis, sin instalacion, sin cuenta, los archivos fuente se eliminan automaticamente.
- [Herramientas de Imagen en el Navegador - Lecciones Aprendidas](https://freetoolonline.com/guides/es/what-we-learned-running-free-in-browser-image-tools-for-100k-monthly-users.html) [lastmod=2026-07-06]
  Lo que aprendimos ejecutando herramientas de imagen gratis en el navegador para 100 mil usuarios mensuales - decisiones tecnicas, patrones de uso y lo que nos sorprendio.
- [Herramientas en linea gratis - sin subida requerida](https://freetoolonline.com/guides/es/free-online-tools-that-work-without-uploading-files.html) [lastmod=2026-07-06]
  Como las herramientas basadas en navegador convierten, comprimen y editan archivos sin nunca subirlos. La razon tecnica que lo hace funcionar, los limites y la privacidad que obtienes gratis.
- [Hora actual en milisegundos: lee el valor epoch en vivo y úsalo correctamente](https://freetoolonline.com/guides/es/current-time-in-milliseconds.html) [lastmod=2026-07-06]
  Lee la hora actual en milisegundos desde la epoch Unix en el navegador, cópiala para una línea de log o llamada API, y evita la confusión 10-dígitos-vs-13-dígitos segundo-vs-milisegundo.
- [ImageMagick Online vs Herramientas Especificas - Cual Elegir](https://freetoolonline.com/guides/es/imagemagick-online-vs-task-specific-tools-which-to-pick.html) [lastmod=2026-07-06]
  Guia de enrutamiento: cuando abrir ImageMagick Online y cuando una herramienta especifica (Crop, Resize, Compress, HEIC to JPG) es el camino mas rapido. Cinco reglas, una decision en 30 segundos.
- [Imagen a Base64 - Incrustar en HTML/CSS vs Enlazar el Archivo de Imagen](https://freetoolonline.com/guides/es/image-to-base64-embed-in-html-vs-link.html) [lastmod=2026-07-06]
  Deberias incrustar una imagen como URL de datos base64 en HTML/CSS, o enlazar el archivo de imagen? Una regla de decision practica con umbrales concretos en bytes, trade-offs de cache y HTTP/2, y una verificacion de sanidad en 30 segundos.
- [Invertir Texto: Cuando Realmente Ayuda](https://freetoolonline.com/guides/es/reverse-text-when.html) [lastmod=2026-07-06]
  Cuando invertir texto ayuda: comprobar palindromos, crear subtitulos espejo, cifrados simples, y la comparacion con hoja de calculo, rev o script.
- [JPG vs JPEG - son lo mismo?](https://freetoolonline.com/guides/es/jpg-vs-jpeg-are-they-the-same.html) [lastmod=2026-07-06]
  JPG y JPEG son el mismo formato de imagen. Las dos extensiones existen debido a un antiguo limite de tres letras de Windows. Aqui esta la historia y cual nombre preferir.
- [JPG vs PNG para la web](https://freetoolonline.com/guides/es/jpg-vs-png-for-web.html) [lastmod=2026-07-06]
  JPG vs PNG para imagenes web - cuando la compresion con perdidas gana, cuando lossless + transparencia importa y como WebP cambia el calculo en 2026.
- [JSON Parser Online: Validar vs Formatear vs Vista de Arbol - Que Funcion Necesitas](https://freetoolonline.com/guides/es/json-parser-validate-vs-format-vs-tree-view.html) [lastmod=2026-07-06]
  Validar, formatear o explorar JSON? Una guia de 30 segundos para elegir la sub-funcion correcta del parser JSON gratuito en freetoolonline.com - en el navegador.
- [JSON vs YAML vs TOML, Explicado](https://freetoolonline.com/guides/es/json-vs-yaml-vs-toml-config-formats-explained.html) [lastmod=2026-07-06]
  Tres formatos de configuracion, tres ergonomias. JSON para maquinas, YAML para humanos, TOML para configuracion poco profunda. Los compromisos que deciden lo que tu proyecto necesita.
- [Lanzador de Dados Online: Guia Paso a Paso](https://freetoolonline.com/guides/es/dice-roller-step-by-step.html) [lastmod=2026-07-06]
  Guia paso a paso de Dice Roller Online: como definir la cantidad de dados, leer las caras y el total, y la diferencia con la ruleta de nombres.
- [Lanzador de Moneda Online: Guia Paso a Paso](https://freetoolonline.com/guides/es/coin-flip-step-by-step.html) [lastmod=2026-07-06]
  Guia paso a paso de Coin Flip Online: como lanzar, leer el resultado, y la diferencia con el lanzador de dados y la ruleta de nombres.
- [Lista de Verificación de Dispositivos para Trabajo Remoto (2026)](https://freetoolonline.com/guides/es/device-test-checklist-for-remote-work.html) [lastmod=2026-07-06]
  Ejecuta la lista de verificación de 8 puntos antes de tu próxima reunión remota. Cámara, mic, LCD, teclado - ruta rápida de 60 segundos o completa de 5 minutos, sin instalación.
- [MD5 a texto - por que no puedes convertirlo de vuelta (y que hacer)](https://freetoolonline.com/guides/es/md5-to-text-why-you-cannot-convert-back.html) [lastmod=2026-07-06]
  Una cadena MD5 de 32 caracteres es una huella unidireccional - no puede convertirse de vuelta en el texto que la produjo. Esta guia explica por que, y da las tres acciones que realmente funcionan: verificar una cadena conocida, buscar un hash de entrada comun, o elegir un hash diferente para el trabajo.
- [MD5 vs SHA-256 - Cuando Usar Cada Uno](https://freetoolonline.com/guides/es/md5-vs-sha256-when-to-hash.html) [lastmod=2026-07-06]
  MD5 vs SHA-256 - velocidad, resistencia a colisiones y casos de uso concretos. Cuando el fingerprinting es suficiente, cuando la fuerza criptografica importa.
- [Metadatos EXIF y Compresion de Imagen: Que se Elimina](https://freetoolonline.com/guides/es/image-compression-and-exif-metadata-what-gets-stripped.html) [lastmod=2026-07-06]
  Comprimir una imagen suele eliminar los metadatos EXIF - GPS, camara, marca de tiempo. Que eliminan los codificadores por defecto, cuando conservarlos, y cuando eliminarlos a proposito.
- [Mezclador de Listas Aleatorio vs. Alternativas](https://freetoolonline.com/guides/es/random-list-shuffler-vs-alternatives.html) [lastmod=2026-07-06]
  Compara el mezclador de listas aleatorio del navegador con un reordenamiento manual y una formula de hoja de calculo RAND(), en tiempo de configuracion, tamano de instalacion y privacidad.
- [Mezclador de Listas Aleatorio: Guia Paso a Paso](https://freetoolonline.com/guides/es/random-list-shuffler-step-by-step.html) [lastmod=2026-07-06]
  Paso a paso: pega una lista, haz clic en Shuffle, y obten un orden aleatorio justo usando Fisher-Yates y crypto.getRandomValues en tu navegador.
- [Milisegundo A Fecha - leer un milisegundo epoch como una fecha](https://freetoolonline.com/guides/es/millisecond-to-date.html) [lastmod=2026-07-06]
  Pegue un valor de milisegundo epoch de 13 digitos y leelo de vuelta como fecha humana. Corre en su navegador, sin subir, sin cuenta. Ultima revision 2026-05-20.
- [Milisegundos a fecha: UTC vs hora local, por que puede parecer incorrecto](https://freetoolonline.com/guides/es/milliseconds-to-date-utc-vs-local-time.html) [lastmod=2026-07-06]
  Conversion de milisegundos a fecha: UTC vs hora local, por que tu resultado puede estar horas equivocado, y como verificar cual valor es correcto. En el navegador, gratis.
- [Millis Actuales: Mostrar la Marca de Tiempo Unix Actual en Milisegundos](https://freetoolonline.com/guides/es/current-millis.html) [lastmod=2026-07-06]
  Millis actuales significa lo que Date.now() devuelve ahora - un entero de 13 dígitos contando milisegundos desde la epoch Unix. Cómo leer, copiar y convertir de vuelta a fecha legible.
- [Minifica CSS y JS para Cold Start](https://freetoolonline.com/guides/es/how-to-minify-css-js-for-cloud-run-cold-start.html) [lastmod=2026-07-06]
  Minifica CSS y JS para reducir el cold-start de Cloud Run y el tamano del bundle de Cloudflare Workers. Herramientas, flags de build y ahorros de latencia medidos.
- [Minificador CSS vs Compresor](https://freetoolonline.com/guides/es/css-minifier-vs-compressor.html) [lastmod=2026-07-06]
  Minificador CSS vs compresor - eliminación de espacios en blanco vs compresión gzip/brotli, qué ahorra cada uno, y el orden exacto del pipeline para producción.
- [Minificador CSS vs Uglifier vs Tree-Shaking](https://freetoolonline.com/guides/es/css-minifier-vs-uglifier-vs-tree-shaking.html) [lastmod=2026-07-06]
  Tres tácticas de reducción de tamaño para un objetivo. Minificador elimina espacios en blanco, uglifier renombra símbolos, tree-shaking descarta reglas no usadas. Cuándo paga cada una.
- [MP4 a GIF Online Gratis: Recorta, Redimensiona y Exporta un GIF Animado](https://freetoolonline.com/guides/es/mp4-to-gif-online-free.html) [lastmod=2026-07-06]
  Convierte un clip MP4 en un GIF animado online gratis: recorta una ventana de 3 a 10 segundos, define el ancho y la tasa de fotogramas, luego descarga. Hecho con la herramienta GIF Maker.
- [MP4 vs MOV vs MKV - Que Contenedor y Cuando](https://freetoolonline.com/guides/es/mp4-vs-mov-vs-mkv-which-container-when.html) [lastmod=2026-07-06]
  Tres contenedores de video comparados. MP4 para todas partes, MOV para el flujo Apple, MKV para archivo con varias pistas. Reglas claras para elegir y convertir.
- [MP4 vs WebM para la Web](https://freetoolonline.com/guides/es/mp4-vs-webm-for-web.html) [lastmod=2026-07-06]
  MP4 se reproduce en cada navegador; WebM es 20-30 por ciento mas pequeno en los modernos. Matriz de decision, patron de fallback y cuando cada contenedor vale la pena.
- [ms a fecha - pegue un timestamp de 13 digitos en milisegundos, lea la fecha local de vuelta](https://freetoolonline.com/guides/es/ms-to-date.html) [lastmod=2026-07-06]
  Guia "ms a fecha": pegue un timestamp Unix en milisegundos de 13 digitos, lea de vuelta la fecha local correspondiente y la hora de 24 horas. 10 digitos? Multiplique por 1000 primero.
- [Niveles de la Prueba de Microfono: Que Significan Silencioso, Normal y Peak](https://freetoolonline.com/guides/es/microphone-test-online-quiet-normal-peak-meter.html) [lastmod=2026-07-06]
  Lee un medidor de nivel de prueba de microfono del navegador en espanol simple: como se ve silencioso, cual es el audio normal listo para llamada, y cuando los picos significan clipping.
- [Ordenar Lineas de Texto Paso a Paso: Alfabetiza una Lista en tu Navegador](https://freetoolonline.com/guides/es/sort-text-lines-step-by-step.html) [lastmod=2026-07-06]
  Una guia paso a paso de la herramienta gratuita Sort Text Lines: como ordenar una lista de A-Z o Z-A, como se decide el orden y por que los numeros se ordenan como texto.
- [Pantalla Negra en Test de Cámara: 4 Correcciones Que Funcionan](https://freetoolonline.com/guides/es/camera-test-shows-black-screen-four-fixes.html) [lastmod=2026-07-06]
  Test de cámara muestra un rectángulo negro? Cuatro causas - permiso, silenciamiento del SO, bloqueo por cámara virtual, obturador de privacidad - y una correccion de un minuto para cada una.
- [PDF a Texto Online: Extrae Texto Gratis, Sin Instalar](https://freetoolonline.com/guides/es/pdf-to-text-online-i-love-pdf.html) [lastmod=2026-07-06]
  Extrae texto de un PDF online, gratis y en tu navegador. Copia o descarga el resultado como .txt. Funciona con PDFs con texto incrustado; las paginas escaneadas necesitan OCR primero.
- [PDF vs HEIC para Archivo](https://freetoolonline.com/guides/es/pdf-vs-heic-for-document-archival.html) [lastmod=2026-07-06]
  PDF vs HEIC para archivo de documentos - cual preserva recibos, identificaciones y formularios a largo plazo. Tamano, capacidad de busqueda y compromisos de soporte de herramientas para 2026.
- [Permiso de Prueba de Cámara Bloqueado: Cómo Permitir Acceso a la Cámara en el Navegador](https://freetoolonline.com/guides/es/camera-test-permission-blocked-how-to-allow-it.html) [lastmod=2026-07-06]
  ¿Prueba de cámara no muestra nada o no pide prompt de permiso? Permitir acceso a la webcam en Chrome, Firefox, Safari y Edge - la ruta exacta por navegador, más cómo se ve bloqueado vs ignorado.
- [Permiso de Prueba de Microfono Bloqueado: Como Permitir Acceso al Mic en Tu Navegador](https://freetoolonline.com/guides/es/microphone-test-permission-blocked-how-to-allow-it.html) [lastmod=2026-07-06]
  La prueba de microfono muestra un medidor plano o ninguna solicitud de permiso? Permite el acceso al mic en Chrome, Firefox, Safari y Edge - la ruta exacta de clics por navegador, mas como bloqueado vs ignorado se ve.
- [PNG a SVG - cuando vectorizar una imagen raster](https://freetoolonline.com/guides/es/png-to-svg-when-to-vectorize-a-raster-image.html) [lastmod=2026-07-06]
  PNG a SVG online - traza automaticamente pixeles raster en rutas vectoriales. Lee cuando la vectorizacion funciona (logos, iconos, line art) y cuando no (fotos).
- [PNG vs SVG - Cuando Usar Cada Uno](https://freetoolonline.com/guides/es/png-vs-svg-when-to-use.html) [lastmod=2026-07-06]
  PNG vs SVG - raster vs vector, cuando elegir cada uno para logos, iconos, UI y fotos, con rutas exactas de conversion y compromisos de rendimiento.
- [Por Que HEIC No Abre en Windows - Tres Soluciones Rapidas](https://freetoolonline.com/guides/es/why-heic-wont-open-on-windows-three-fixes.html) [lastmod=2026-07-06]
  Cuando Windows dice que no puede abrir un archivo .heic, tres soluciones rapidas funcionan: instalar la extension HEIF gratuita, usar un visor gratuito o convertir a JPG online.
- [Por Que MD5 No Se Puede Descifrar](https://freetoolonline.com/guides/es/why-md5-cannot-be-decrypted.html) [lastmod=2026-07-06]
  MD5 es un hash unidireccional, no cifrado, asi que no hay clave de descifrado. Lo que las herramientas md5-decrypt realmente hacen, por que MD5 es inseguro para contrasenas, y que usar.
- [Preflight PDF online: que verifica realmente (y que no)](https://freetoolonline.com/guides/es/pdf-preflight-online-what-it-actually-checks.html) [lastmod=2026-07-06]
  El preflight PDF online verifica conformidad archival PDF/A - no corrige problemas, no certifica impresion PDF/X ni repara PDFs corruptos. Guia rapida de eleccion de herramienta antes de subir.
- [Probar LCD: Elige la herramienta correcta de prueba de pantalla](https://freetoolonline.com/guides/es/test-lcd.html) [lastmod=2026-07-06]
  Probar LCD, test LCD, o probador LCD mapean al mismo trabajo: verificar tu pantalla en busca de pixeles muertos, color y retroiluminacion en el navegador. Elige la herramienta correcta aqui.
- [Probar pixeles muertos antes de devolver un monitor](https://freetoolonline.com/guides/es/how-to-test-for-dead-pixels-before-returning-a-monitor.html) [lastmod=2026-07-06]
  Como probar pixeles muertos antes de devolver un monitor - verificacion de color a pantalla completa, pixeles atascados vs muertos, prueba de garantia, y lo que aceptan los fabricantes.
- [Prueba de Camara Frontal - Comprueba tu Camara Selfie en Linea](https://freetoolonline.com/guides/es/front-camera-test.html) [lastmod=2026-07-06]
  Prueba de camara frontal en linea: abre la lente selfie, mira una vista previa en vivo, cambia entre frontal y trasera y captura un JPEG - todo en tu navegador. Revisado el 2026-06-10.
- [Prueba de cámara vs prueba de webcam vs calidad de cámara - ¿cuál?](https://freetoolonline.com/guides/es/camera-test-vs-webcam-test-which-do-you-need.html) [lastmod=2026-07-06]
  Tres nombres, tres comprobaciones diferentes. Prueba de cámara = hardware frontal/trasera del teléfono. Prueba de webcam = cámara laptop/escritorio + permisos. Prueba de calidad = enfoque, exposición, color, ruido. Cuál ejecutar cuándo.
- [Prueba de LCD para Pantallas de Portatil - Comprobacion de Pixeles Muertos y Color](https://freetoolonline.com/guides/es/lcd-test-laptop.html) [lastmod=2026-07-06]
  Prueba el LCD de un portatil en busca de pixeles muertos, pixeles atascados y fugas de retroiluminacion - alterna rojo, verde, azul, negro y blanco a pantalla completa en tu navegador.
- [Prueba de LED vs Prueba de LCD: Cual Se Aplica a Su Pantalla?](https://freetoolonline.com/guides/es/led-test-vs-lcd-test-which-applies-to-your-screen.html) [lastmod=2026-07-06]
  LED es la retroiluminacion; LCD es el panel. En casi cualquier pantalla moderna, ambos nombres significan el mismo hardware - un ciclo de colores a pantalla completa responde a cualquiera de las dos consultas.
- [Prueba de LED: como probar la pantalla de un laptop o telefono](https://freetoolonline.com/guides/es/led-test.html) [lastmod=2026-07-06]
  Prueba tu pantalla LED en busca de pixeles atascados, pixeles muertos y sangrado de luz. Pinta seis colores a pantalla completa en el navegador. Sin instalar, gratis.
- [Prueba de Microfono Online - Que Verifica](https://freetoolonline.com/guides/es/microphone-test-online-what-it-actually-checks.html) [lastmod=2026-07-06]
  Una prueba de microfono en el navegador confirma que el microfono esta seleccionado, capta sonido y coincide con el volumen esperado. Lo que no puede comprobar y donde ir despues.
- [Prueba de Microfono Sin Sonido: 4 Correcciones Que Funcionan](https://freetoolonline.com/guides/es/microphone-test-no-sound-four-fixes.html) [lastmod=2026-07-06]
  La prueba de microfono muestra sin sonido o forma de onda plana? Cuatro causas - permiso, silenciado del sistema, aplicacion reteniendo el dispositivo, silenciado de hardware - y una correccion de un minuto para cada una.
- [Prueba de pantalla LCD - guia online](https://freetoolonline.com/guides/es/lcd-screen-test.html) [lastmod=2026-07-06]
  Guia de prueba de pantalla LCD: ejecuta una verificacion gratuita de pixeles muertos y uniformidad de color en el navegador. Paso a paso, sin instalar. Ultima revision: 2026-05-20.
- [Prueba de Pantalla para Laptop - Checklist de 5 Minutos](https://freetoolonline.com/guides/es/screen-test-for-laptop-5-minute-checklist.html) [lastmod=2026-07-06]
  Cinco comprobaciones rapidas de pantalla para una laptop que acaba de comprar o esta por devolver - pixeles muertos, brillo en bateria vs AC, desplazamiento IPS, reflejos, escalado. Dos minutos por comprobacion.
- [Prueba de pantalla vs prueba de camara - cual necesita realmente?](https://freetoolonline.com/guides/es/screen-test-vs-camera-test-pick-the-right-tool.html) [lastmod=2026-07-06]
  Pixeles atascados o fuga de retroiluminacion: prueba de pantalla. Webcam que no arranca o imagen al reves: prueba de camara. Elija la herramienta de prueba de dispositivo correcta en freetoolonline.com.
- [Prueba de Teclado - Rollover vs Anti-Ghosting](https://freetoolonline.com/guides/es/keyboard-tester-online-rollover-vs-anti-ghosting.html) [lastmod=2026-07-06]
  N-key rollover y anti-ghosting son funciones distintas del teclado. Una prueba en el navegador revela ambas. Que pulsar, que mirar, que significa el resultado.
- [Que comprueba realmente un test LCD](https://freetoolonline.com/guides/es/lcd-test-what-it-checks.html) [lastmod=2026-07-06]
  Un test LCD escanea pixeles muertos, pixeles atascados, uniformidad de color y burn-in. Que significa cada comprobacion y cuando ejecutarla antes de garantia o devolucion.
- [Que Es un Compresor de Archivos y Cual Usar](https://freetoolonline.com/guides/es/what-is-a-file-compressor-and-which-to-use.html) [lastmod=2026-07-06]
  Un "compresor de archivos" no es una sola herramienta. Elija por tipo de archivo: ZIP de una carpeta, comprimir fotos, convertir HEIC, agrupar PDFs o usar un enlace de transferencia.
- [Que Hace una Prueba de LCD (y Cuando Ejecutar Una)](https://freetoolonline.com/guides/es/what-an-lcd-test-does-and-when-to-run-one.html) [lastmod=2026-07-06]
  Lo que una prueba de LCD comprueba realmente (pixeles muertos, pixeles atascados, fuga de retroiluminacion, banding) - y cuando ejecutar una es la decision correcta antes de quedarse con una pantalla.
- [Recortar y Rotar Imagen: elige el cuadro, luego alinea](https://freetoolonline.com/guides/es/crop-and-rotate-image.html) [lastmod=2026-07-06]
  Recorta y rota una imagen en el navegador - elige una proporcion predefinida o un rectangulo de pixeles libre, luego alinea con pasos de 45 grados o un manejador de angulo libre. Gratis, sin subida.
- [Recuperacion de Contrasena ZIP Online - lo que funciona (y lo que no)](https://freetoolonline.com/guides/es/zip-password-recovery-online.html) [lastmod=2026-07-06]
  Guia de recuperacion de contrasena ZIP online: lo que los desbloqueadores online pueden y no pueden hacer, mas las tres rutas que funcionan cuando has olvidado una contrasena ZIP. Ultima revision 2026-05-18.
- [Recuperar un Archivo Zip Corrupto - Opciones](https://freetoolonline.com/guides/es/recover-corrupt-zip-file-options.html) [lastmod=2026-07-06]
  Rutas practicas para un zip que no abre: volver a descargar, extraccion parcial, herramientas de reparacion, y cuando rendirse. Que funciona, que no, que probar primero.
- [Redimensionar Archivo Zip: Que Significa "Redimensionar" Para un .zip](https://freetoolonline.com/guides/es/resize-zip-file.html) [lastmod=2026-07-06]
  "Redimensionar archivo zip" usualmente significa reducir el archivo, a veces dividirlo, a veces reducir las fotos adentro antes de re-comprimir. Tabla de ruteo + la herramienta correcta para cada caso.
- [Reducir Tamano del Archivo ZIP Online - Guia Gratis en el Navegador](https://freetoolonline.com/guides/es/reduce-zip-file-size-online.html) [lastmod=2026-07-06]
  Encoge un archivo ZIP en tu navegador - que realmente ahorra bytes, que no, y como llegar al limite de 25 MB de correo sin dividir el archivo.
- [Reducir Tamaño Zip Online - synonym-routing landing for the in-browser ZIP creator](https://freetoolonline.com/guides/es/reduce-zip-size-online.html) [lastmod=2026-07-06]
  Reducir tamaño zip online guide: where to actually reduce a .zip in your browser, when zipping saves space, and how this wording routes to the same in-browser creator as comprimir zip online.
- [Reductor de Tamano ZIP - cuando la compresion ZIP realmente encoge tu archivo](https://freetoolonline.com/guides/es/zip-size-reducer.html) [lastmod=2026-07-06]
  Una guia orientada al lector para usar un reductor de tamano ZIP: cuando la compresion ZIP realmente ahorra espacio, cuando no, y donde esta el creador ZIP en el navegador. Ultima revision: 2026-05-17.
- [Reloj Analogico Online: Como Leer las Manecillas](https://freetoolonline.com/guides/es/analog-clock-step-by-step.html) [lastmod=2026-07-06]
  Vea como las manecillas de hora, minuto y segundo indican la hora, por que el movimiento se ve suave, y donde es util un reloj analogico en vivo.
- [Reloj Digital Online: Como Leer la Pantalla](https://freetoolonline.com/guides/es/digital-clock-step-by-step.html) [lastmod=2026-07-06]
  Vea que muestran la pantalla HH:MM:SS y la linea de fecha, con que frecuencia se actualizan, y donde es util un reloj digital grande en el navegador.
- [Ruleta de Nombres Online: Guia Paso a Paso](https://freetoolonline.com/guides/es/wheel-spinner-wheel-names-step-by-step.html) [lastmod=2026-07-06]
  Start, edite la lista y haga clic en Spin - vea exactamente como la ruleta elige un nombre de forma justa antes de usarla para sorteos o decisiones.
- [Ruleta Si o No Online: Guia Paso a Paso](https://freetoolonline.com/guides/es/yes-no-wheel-step-by-step.html) [lastmod=2026-07-06]
  Como la Yes or No Wheel abre lista en Si/No, como convertirla en ruleta para cualquier decision con 2+ opciones, y como se mantiene justo el giro.
- [Salida del Extractor de Frames GIF Parece Mal? Tres Causas y Prueba de 30 Segundos](https://freetoolonline.com/guides/es/gif-frame-extractor-output-looks-wrong-three-causes.html) [lastmod=2026-07-06]
  Extractor de frames GIF dio un frame, frames en blanco o colores raros? Tres causas - GIF estatico, modo de descarte do-not-dispose, limite de memoria - cada una con una correccion.
- [Son realmente gratis las herramientas online? Privacidad, monetizacion y el modelo en el navegador](https://freetoolonline.com/guides/es/tool-free.html) [lastmod=2026-07-06]
  Son realmente gratis las herramientas online? Como las herramientas en el navegador siguen gratis sin suscripciones, como los anuncios pagan la cuenta y que se queda en tu dispositivo. Ultima revision 2026-06-04.
- [SVG a PNG - cuando rasterizar](https://freetoolonline.com/guides/es/svg-to-png-when-to-rasterize-an-svg.html) [lastmod=2026-07-06]
  La mayoria de SVGs deberian quedarse vectoriales. Las excepciones: software legado que no procesa SVG, previews de compartir social, clientes de correo. Cuando y como rasterizar limpiamente.
- [Teclas No Detectadas en la Prueba de Teclado: 4 Soluciones](https://freetoolonline.com/guides/es/keyboard-test-keys-not-detected-four-fixes.html) [lastmod=2026-07-06]
  La prueba de teclado no resalta algunas teclas? Cuatro causas - foco, distribucion del SO, filtro sticky keys, interruptor de hardware - y una solucion de un minuto cada una.
- [Temporizador de Cuenta Atras Online: Guia Paso a Paso](https://freetoolonline.com/guides/es/countdown-timer-step-by-step.html) [lastmod=2026-07-06]
  Defina los minutos y segundos, inicie la cuenta atras, y vea exactamente que sucede - y que no sucede - cuando llega a cero.
- [Test de pantalla online vs app: cual es mas preciso?](https://freetoolonline.com/guides/es/screen-test-online-vs-app-which-is-more-accurate.html) [lastmod=2026-07-06]
  Los tests de pantalla en el navegador detectan defectos del panel (pixeles muertos, uniformidad, fuga) en dos minutos. Las apps nativas llegan a la frecuencia, HDR y comprobaciones ICC. Por cual empezar.
- [Test de pantalla vs Test LCD - lo mismo?](https://freetoolonline.com/guides/es/screen-display-test-synonyms.html) [lastmod=2026-07-06]
  Test de pantalla, test de display, test de monitor - todos significan las mismas verificaciones. Elige la herramienta correcta: test LCD para monitores, test de camara para webcams.
- [Test LCD - guia de prueba de pantalla LCD](https://freetoolonline.com/guides/es/lcd-test-online.html) [lastmod=2026-07-06]
  Guia de test LCD: como hacer una prueba LCD online, gratis en tu navegador. Paso a paso, sin instalar. Ultima revision: 2026-05-13.
- [Test LCD vs test de display vs test de monitor - cual?](https://freetoolonline.com/guides/es/lcd-test-vs-display-test-which-do-you-need.html) [lastmod=2026-07-06]
  Tres nombres, tres comprobaciones diferentes. Test LCD = pixeles del panel y uniformidad. Test de display = panel + camino de senal. Test de monitor = panel + senal + puertos + escala. Cual ejecutar cuando, y la herramienta correcta para empezar.
- [Test LCD: Verificar Dead Pixel de Pantalla Online - Free Tool Online](https://freetoolonline.com/guides/es/tes-lcd.html) [lastmod=2026-07-06]
  Test LCD online: verifica dead pixel, stuck pixel y backlight bleed con seis pantallas completas (rojo, verde, azul, negro, blanco, amarillo) en el navegador. Last reviewed: 2026-05-18.
- [Test OLED vs Test LCD: Que Cambia en un Panel OLED](https://freetoolonline.com/guides/es/oled-test-vs-lcd-test-what-changes-on-oled.html) [lastmod=2026-07-06]
  Los paneles OLED necesitan una prueba distinta del LCD: no hay fugas de retroiluminacion que buscar, pero el burn-in y la retencion de imagen importan. Esta guia explica que cambia cuando tu pantalla es OLED.
- [Text vs Line vs Word vs Git Diff](https://freetoolonline.com/guides/es/text-diff-vs-line-diff-vs-word-diff-vs-git-diff.html) [lastmod=2026-07-06]
  Cuatro tipos de diff responden preguntas diferentes. Text diff para cualquier par, line diff para codigo, word diff para prosa, git diff para cambios rastreados. Cada uno explicado.
- [Texto a Voz Cuando Usar Online](https://freetoolonline.com/guides/es/text-speech-when.html) [lastmod=2026-07-06]
  Texto a Voz Cuando Usar - cuando conviene abrir Texto a Voz y que esperar cuando se adapta bien al trabajo solicitado.
- [Texto a Voz Paso a Paso Online](https://freetoolonline.com/guides/es/text-speech-step-by-step.html) [lastmod=2026-07-06]
  Texto a Voz Paso a Paso - los pasos exactos para usar la herramienta Texto a Voz desde el inicio hasta el resultado.
- [Texto a Voz Versus Alternativas](https://freetoolonline.com/guides/es/text-speech-vs-alternatives.html) [lastmod=2026-07-06]
  Texto a Voz Versus Alternativas - como Texto a Voz se compara con una aplicacion de escritorio o un servicio de carga.
- [Tiempo en milisegundos: la unidad, las conversiones y el valor epoch](https://freetoolonline.com/guides/es/time-in-ms.html) [lastmod=2026-07-06]
  Un tiempo en milisegundos es un número donde 1 segundo equivale a 1000 ms. Conoce los significados de duración y epoch, una tabla de conversión y dónde aparece ms en el código.
- [Timestamps Unix Explicados](https://freetoolonline.com/guides/es/unix-timestamps-explained.html) [lastmod=2026-07-06]
  Timestamps Unix explicados - segundos vs milisegundos, ISO-8601, RFC 2822, UTC vs hora local y las trampas comunes al convertir entre formatos.
- [Tipos de Contenido de QR: URL, vCard, Wi-Fi, Texto - Cual Elegir](https://freetoolonline.com/guides/es/qr-code-content-types-url-vcard-wifi-text-which-to-pick.html) [lastmod=2026-07-06]
  Elige el tipo de contenido correcto para tu QR: URL vs vCard vs Wi-Fi vs texto - que codifica cada uno y cual encaja en una tarjeta de visita o folleto.
- [Tipos de Contrasena ZIP - fuerte vs debil, explicado (cuando un eliminador online puede ayudar)](https://freetoolonline.com/guides/es/zip-password-types-strong-vs-weak-explained.html) [lastmod=2026-07-06]
  Antes de subir un ZIP protegido por contrasena a /remove-zip-password.html, verifica el tipo de cifrado. ZIP 2.0 heredado + una contrasena corta o numerica es recuperable en segundos. WinZip AES-256 con una contrasena fuerte no lo es. Una guia de decision de 30 segundos para no malgastar una subida.
- [Unir PDF Online Gratis - Combina PDFs en tu Navegador](https://freetoolonline.com/guides/es/merge-pdf-online-free-unlimited.html) [lastmod=2026-07-06]
  Une archivos PDF online gratis - combina varios PDF en uno, reordénalos antes de exportar y descarga. La opción en el navegador no necesita subida ni cuenta.
- [Url Decoder Cuando Usarlo](https://freetoolonline.com/guides/es/url-decoder-when.html) [lastmod=2026-07-06]
  Url Decoder Cuando Usarlo - cuando abrir el URL Decoder y que esperar cuando es adecuado.
- [Url Decoder Paso A Paso](https://freetoolonline.com/guides/es/url-decoder-step-by-step.html) [lastmod=2026-07-06]
  Url Decoder Paso A Paso - los pasos exactos para ejecutar el URL Decoder de inicio a resultado.
- [Url Decoder Vs Alternativas](https://freetoolonline.com/guides/es/url-decoder-vs-alternatives.html) [lastmod=2026-07-06]
  Url Decoder Vs Alternativas - como URL Decoder se compara con una aplicacion de escritorio o servicio de subida.
- [Verificador LCD: Ejecuta una Verificacion Gratuita de Pantalla Online en el Navegador](https://freetoolonline.com/guides/es/lcd-checker.html) [lastmod=2026-07-06]
  verificador lcd, verificacion lcd, verificador de monitor - una sola tarea: recorrer el panel en colores solidos de pantalla completa para detectar pixeles muertos, fugas de retroiluminacion y desviacion de color. Gratis y en el navegador.
- [Verifique Webcam y Microfono Antes de la Entrevista](https://freetoolonline.com/guides/es/how-to-check-webcam-and-microphone-before-an-interview.html) [lastmod=2026-07-06]
  Verifique webcam y microfono antes de una entrevista - prueba de navegador de 5 minutos para camara, niveles de microfono, iluminacion y retraso. Sin instalacion, sin subida.
- [Voz a Texto Cuando Usar](https://freetoolonline.com/guides/es/speech-text-when.html) [lastmod=2026-07-06]
  Voz a Texto Cuando Usar - cuando abrir Voz a Texto es adecuado y que esperar.
- [Voz a Texto Paso a Paso](https://freetoolonline.com/guides/es/speech-text-step-by-step.html) [lastmod=2026-07-06]
  Voz a Texto Paso a Paso - los pasos exactos para usar Voz a Texto desde el inicio hasta el resultado descargado.
- [Voz a Texto vs Alternativas](https://freetoolonline.com/guides/es/speech-text-vs-alternatives.html) [lastmod=2026-07-06]
  Voz a Texto vs Alternativas - como Voz a Texto se compara con una aplicacion de escritorio o un servicio de carga.
- [Zip online vs 7z vs Rar - cual elegir](https://freetoolonline.com/guides/es/online-zip-vs-7z-vs-rar-which-to-pick.html) [lastmod=2026-07-06]
  Elige el formato de archivo correcto online: zip para compatibilidad, 7z para mejor compresion, rar cuando debes abrir uno. Matriz de decision y enrutamiento de herramientas en el navegador.
- [Zip vs Zipx vs Rar vs 7z, explicado](https://freetoolonline.com/guides/es/zip-vs-zipx-vs-rar-vs-7z-archive-formats-explained.html) [lastmod=2026-07-06]
  Cuatro formatos de archivo comparados: cual abre Windows por defecto, cual comprime mas pequeno, y cual vale una app separada. Guia en lenguaje sencillo.
- [Zipear Carpeta Online Gratis - guia](https://freetoolonline.com/guides/es/zip-folder-online-free.html) [lastmod=2026-07-06]
  Zipea una carpeta online gratis en el navegador - arrastra, elige contrasena opcional, descarga el .zip. Paso a paso, sin instalar. Ultima revision: 2026-05-19.

### Indonesian guides (241)

- [Alat Diff Online - Panduan Membandingkan Dua Teks Berdampingan](https://freetoolonline.com/guides/id/online-diff-tool.html) [lastmod=2026-07-06]
  Panduan alat diff online: tempel dua blok teks dan baca baris yang ditambah, dihapus, dan diubah secara berdampingan di browser. Tanpa instalasi, tanpa unggah.
- [Alat Gambar di Browser - Pelajaran yang Dipetik](https://freetoolonline.com/guides/id/what-we-learned-running-free-in-browser-image-tools-for-100k-monthly-users.html) [lastmod=2026-07-06]
  Apa yang kami pelajari saat menjalankan alat gambar gratis di browser untuk 100 ribu pengguna bulanan - pilihan teknis, pola penggunaan, dan apa yang mengejutkan kami.
- [Alat online gratis - tidak perlu mengunggah](https://freetoolonline.com/guides/id/free-online-tools-that-work-without-uploading-files.html) [lastmod=2026-07-06]
  Bagaimana alat berbasis browser mengkonversi, mengkompres, dan mengedit file tanpa pernah mengunggahnya. Alasan teknis mengapa ini berfungsi, batasannya, dan privasi yang Anda dapatkan gratis.
- [Alat ZIP Online (Gratis, Layanan Bangun di Browser)](https://freetoolonline.com/guides/id/i-love-zip.html) [lastmod=2026-07-06]
  Alat zip online: ubah folder atau pilihan multi-file menjadi satu .zip melalui layanan bangun pribadi. Gratis, tanpa instalasi, tanpa akun, file sumber otomatis dihapus.
- [Alternatif MD5: bcrypt, Argon2id, SHA-256](https://freetoolonline.com/guides/id/md5-alternatives-bcrypt-argon2id-sha256-when-each-fits.html) [lastmod=2026-07-06]
  MD5 salah untuk kata sandi dan integritas adversarial. Pilih bcrypt atau Argon2id untuk kata sandi, HMAC-SHA-256 untuk MAC, SHA-256 untuk integritas.
- [Apa Itu Kompresor File dan Mana yang Harus Digunakan](https://freetoolonline.com/guides/id/what-is-a-file-compressor-and-which-to-use.html) [lastmod=2026-07-06]
  "Kompresor file" bukan satu alat tunggal. Pilih berdasarkan jenis file: ZIP sebuah folder, kompres foto, konversi HEIC, gabungkan PDF, atau pakai link transfer.
- [Apa yang Dilakukan Tes LCD (dan Kapan Menjalankannya)](https://freetoolonline.com/guides/id/what-an-lcd-test-does-and-when-to-run-one.html) [lastmod=2026-07-06]
  Apa yang sebenarnya diperiksa oleh tes LCD (pixel mati, pixel macet, kebocoran cahaya latar, banding) - dan kapan menjalankannya adalah keputusan tepat sebelum menyimpan layar.
- [Apa yang sebenarnya diperiksa tes LCD](https://freetoolonline.com/guides/id/lcd-test-what-it-checks.html) [lastmod=2026-07-06]
  Tes LCD memindai pixel mati, pixel macet, keseragaman warna, dan burn-in. Apa arti setiap pemeriksaan dan kapan menjalankannya sebelum garansi atau pengembalian.
- [Apakah alat online benar-benar gratis? Privasi, monetisasi, dan model di dalam browser](https://freetoolonline.com/guides/id/tool-free.html) [lastmod=2026-07-06]
  Apakah alat online benar-benar gratis? Bagaimana alat di dalam browser tetap gratis tanpa langganan, bagaimana iklan membayar tagihan, dan apa yang tetap ada di perangkat Anda. Terakhir ditinjau 2026-06-04.
- [Apakah Angka Panjang Ini Timestamp? Milidetik vs Detik](https://freetoolonline.com/guides/id/long-number-millisecond-or-second.html) [lastmod=2026-07-06]
  Angka 10, 13, 16, atau 19 digit yang ditempel bisa berupa detik Unix, milidetik, mikrodetik, nanodetik, atau hanya ID - berikut cara cepat mengenalinya.
- [Base64 - Kapan Menggunakan Dan Kapan Tidak](https://freetoolonline.com/guides/id/base64-when-to-use-and-when-not-to.html) [lastmod=2026-07-06]
  Base64 membuat data biner aman teks dengan biaya ukuran 33 persen. Tepat untuk data URL inline dan ikon kecil; salah untuk aset di atas beberapa kilobyte. Aturan keputusan.
- [Buat File ZIP Online - apa yang sebenarnya dilakukan alat ini dan kapan ZIP menghemat ruang](https://freetoolonline.com/guides/id/make-zip-file-online.html) [lastmod=2026-07-06]
  Buat file ZIP online: kapan ZIP benar-benar menghemat ruang, kapan tidak, dan cara mengirim file atau folder sebagai satu unduhan. Gratis, tanpa instalasi.
- [Buat File Zip Online (Pembuat ZIP Gratis, Tanpa Instalasi, Tanpa Akun)](https://freetoolonline.com/guides/id/create-zip-file-online.html) [lastmod=2026-07-06]
  Buat file ZIP online dari folder atau pilihan banyak file. Pembuat gratis di /zip-tools/zip-file.html; tanpa instalasi di kedua sisi; arsip terhapus otomatis setelah retensi singkat. Terakhir ditinjau 2026-05-18.
- [Buka kunci file ZIP online - panduan](https://freetoolonline.com/guides/id/unlock-zip-file-online.html) [lastmod=2026-07-06]
  Buka kunci file ZIP online: pilih rute untuk ZIP yang dilindungi kata sandi vs ZIP biasa, jalankan alat yang tepat gratis di browser Anda. Direview terakhir: 2026-05-20.
- [Cara cek layar laptop untuk mencari dead pixel dan kebocoran cahaya](https://freetoolonline.com/guides/id/cek-layar-laptop.html) [lastmod=2026-07-06]
  Cek layar laptop di browser: penuhi dengan warna merah, hijau, biru, hitam, putih, dan kuning untuk menemukan dead pixel atau stuck pixel. Gratis, tanpa instal.
- [Cara Kompres Folder](https://freetoolonline.com/guides/id/how-to-compress-a-folder.html) [lastmod=2026-07-06]
  Kompres seluruh folder menjadi satu ZIP di browser Anda. Tiga langkah dari drag-and-drop ke unduhan file tunggal yang lebih kecil. Gratis, tanpa instal.
- [Cara Membaca dan Membandingkan Hash MD5 dengan Benar: Huruf Besar, Spasi, Format Hex](https://freetoolonline.com/guides/id/read-and-compare-md5-hashes-correctly.html) [lastmod=2026-07-06]
  Dua hash MD5 cocok jika 32 karakter hex-nya sama setelah dijadikan huruf kecil dan spasi dihapus. Pelajari 4 perbedaan kosmetik dan yang sungguhan.
- [Cara Membuat Daftar Tugas Online - Gratis dan Tanpa Akun](https://freetoolonline.com/guides/id/how-to-make-a-to-do-list-online.html) [lastmod=2026-07-06]
  Buat daftar tugas online gratis. Tambahkan tugas, tandai selesai, dan hapus; daftar Anda tersimpan di browser, tanpa instal aplikasi dan tanpa akun.
- [Cara Membuat File Zip Lebih Kecil](https://freetoolonline.com/guides/id/how-to-make-a-zip-file-smaller.html) [lastmod=2026-07-06]
  Buat zip lebih kecil tanpa kehilangan file: pilih tingkat kompresi yang tepat, lepas media yang sudah dikompres lebih dulu, pisah jika harus melewati batas ukuran email.
- [Cara membundel beberapa file ke satu ZIP](https://freetoolonline.com/guides/id/how-to-zip-multiple-files-into-one.html) [lastmod=2026-07-06]
  Bundel beberapa file ke dalam satu arsip ZIP di browser: pilih, beri nama output, pilih level kompresi, dan unduh. Tanpa upload atau instal.
- [Cara memeriksa kualitas kamera ponsel Anda](https://freetoolonline.com/guides/id/how-to-check-camera-quality-on-your-phone.html) [lastmod=2026-07-06]
  Tes browser dua menit untuk kualitas kamera ponsel: resolusi, fokus, cahaya rendah, debu di lensa. Apa yang bagus, dan hardware vs software.
- [Cara Memilih Tingkat Kompresi - Kualitas vs Ukuran File, Dengan Contoh](https://freetoolonline.com/guides/id/how-to-choose-a-compression-level.html) [lastmod=2026-07-06]
  Pilih tingkat kompresi yang tepat di /compress-image.html - 50, 70, 85, atau 100. Rentang ukuran file konkret, kapan setiap tingkat cukup baik, dan kapan terus.
- [Cara Memilih Warna Online - HEX, RGB, dan HSL](https://freetoolonline.com/guides/id/how-to-pick-a-color-online.html) [lastmod=2026-07-06]
  Pilih warna online dan lihat nilai HEX, RGB, dan HSL-nya, palet yang cocok, pemeriksaan kontras, dan simpan favorit - semua di browser, tanpa akun.
- [Cara Memisahkan GIF Menjadi Frame](https://freetoolonline.com/guides/id/how-to-split-a-gif-into-frames-for-editing.html) [lastmod=2026-07-06]
  Tarik frame individu dari GIF animasi untuk pengeditan, pengarsipan, atau posting sosial. Panduan browser yang mempertahankan data timing asli per frame.
- [Cara memotong dan memutar gambar](https://freetoolonline.com/guides/id/how-to-crop-and-rotate-an-image.html) [lastmod=2026-07-06]
  Potong dan putar gambar di browser tanpa kehilangan aslinya. Pemotongan presisi piksel, rotasi 90 derajat tanpa kehilangan, dan di mana flag rotasi EXIF penting.
- [Cara memvisualisasikan data online - buat grafik dari angka Anda](https://freetoolonline.com/guides/id/how-to-visualize-data-online.html) [lastmod=2026-07-06]
  Ubah baris data menjadi grafik di browser Anda. Tempel CSV, JSON, atau baris Label, Nilai, pilih jenis grafik, dan lihat hasilnya - tanpa unggah dan tanpa akun.
- [Cara menandatangani PDF setelah menghapus kata sandinya](https://freetoolonline.com/guides/id/how-to-sign-pdf-after-removing-a-password.html) [lastmod=2026-07-06]
  Cara menandatangani PDF setelah menghapus kata sandi pemiliknya - alur kerja yang sah untuk kontrak dan formulir, dengan catatan hukum dan privasi.
- [Cara mengedit kode online - gratis, di browser Anda](https://freetoolonline.com/guides/id/how-to-edit-code-online.html) [lastmod=2026-07-06]
  Edit kode online langsung di browser - penyorotan sintaks untuk 18 bahasa, tema terang dan gelap, buka dan simpan berkas. Tanpa unggah.
- [Cara mengekstrak file online - ZIP, RAR, 7z (rute mana di situs ini melakukan apa)](https://freetoolonline.com/guides/id/how-to-extract-a-file-online-zip-rar-7z.html) [lastmod=2026-07-06]
  Jika Anda mencari "ekstrak file online" atau "file zipper", inilah aturan perutean. Arsip ZIP diekstrak online via /unzip-file.html (server-upload, kata sandi opsional). RAR / 7z diekstrak secara lokal dengan alat OS Anda - situs ini tidak memiliki ekstraktor sisi server untuk .rar atau .7z, dan panduan mengatakannya dengan jujur.
- [Cara mengetahui apakah JPG dikompresi terlalu banyak](https://freetoolonline.com/guides/id/how-to-tell-if-a-jpg-was-compressed-too-much.html) [lastmod=2026-07-06]
  Baca nilai kualitas tempat JPG yang ada disimpan, kenali artefak yang terlihat dari kompresi berlebihan, dan putuskan apakah re-encoding akan membantu atau merugikan.
- [Cara Mengisi Formulir PDF Online - Tanpa Unggah File](https://freetoolonline.com/guides/id/pdf-filler-form-editor-step-by-step.html) [lastmod=2026-07-06]
  Panduan langkah demi langkah untuk mengisi kolom formulir PDF yang sudah ada secara online, langsung di browser, tanpa unggah file dan tanpa akun.
- [Cara Mengkompres File ZIP ke 100 KB - Gratis, Di Browser](https://freetoolonline.com/guides/id/compress-zip-file-to-100kb.html) [lastmod=2026-07-06]
  Mencoba menurunkan ZIP di bawah 100 KB? Baca input mana yang mencapai target itu sendiri, kapan re-kompres membantu, dan kapan file harus dipecah. Gratis, di browser.
- [Cara Mengkompres File ZIP ke 2 MB - Gratis, Di Browser](https://freetoolonline.com/guides/id/compress-zip-file-to-2mb.html) [lastmod=2026-07-06]
  Butuh ZIP di bawah 2 MB untuk batas lampiran email? Baca input mana yang dikemas ke 2 MB, kapan re-kompres membantu, dan kapan harus dipecah. Gratis, di browser.
- [Cara Mengkompres JPG Untuk Batas Ukuran Lampiran Email](https://freetoolonline.com/guides/id/how-to-compress-a-jpg-for-email-attachment-limits.html) [lastmod=2026-07-06]
  Pilih kualitas JPG yang tepat untuk menempatkan foto di bawah batas email 25 MB Gmail / 20 MB Outlook / 10 MB korporat tanpa foto berubah menjadi bubur.
- [Cara mengkonversi HEIC ke JPG langkah demi langkah](https://freetoolonline.com/guides/id/how-to-convert-heic-to-jpg-step-by-step.html) [lastmod=2026-07-06]
  Konversi HEIC ke JPG langkah demi langkah. Dekoding server-side via libheif, unduh JPG melalui HTTPS, siap dikirim email. Alur kerja foto iPhone dalam hitungan detik.
- [Cara Mengompres File Online (Langkah demi Langkah)](https://freetoolonline.com/guides/id/how-to-compress-a-file-online.html) [lastmod=2026-07-06]
  Identifikasi tipe file dulu, lalu pilih alat yang sesuai: gambar pakai Compress Image, HEIC pakai HEIC to JPG, PDF pakai Flatten PDF, video pakai Video Converter, dokumen pakai ZIP.
- [Cara mengompres file zip - panduan tiga langkah](https://freetoolonline.com/guides/id/how-to-compress-a-zip-file.html) [lastmod=2026-07-06]
  Cara mengompres file zip online dalam tiga langkah: jatuhkan folder, pilih target kompresi, unduh. Gratis, berbasis browser, tanpa instalasi. Tinjauan terakhir 2026-05-19.
- [Cara Mengompres Folder ke Zip Online, Langkah demi Langkah](https://freetoolonline.com/guides/id/how-to-zip-folder-online-step-by-step.html) [lastmod=2026-07-06]
  Kompres folder ke zip online dalam lima langkah: pilih folder, pertahankan struktur, atur kompresi, beri nama keluaran, unduh. Hanya di peramban, dengan jebakan yang harus dihindari.
- [Cara Mengompres Gambar ke 50KB Online (Gratis)](https://freetoolonline.com/guides/id/compress-image-online-to-50kb.html) [lastmod=2026-07-06]
  Buat JPG, PNG, atau WebP di bawah 50 KB online: konversi ke JPG, turunkan penggeser kualitas, dan periksa pratinjau berdampingan sebelum mengunduh. Gratis, tanpa akun.
- [Cara mengompres Zip ke ukuran lebih kecil](https://freetoolonline.com/guides/id/how-to-compress-zip-file-to-smaller-size.html) [lastmod=2026-07-06]
  Kompres zip yang sudah ada lagi, dengan cara yang benar: kapan re-zip membantu, kapan tidak melakukan apa-apa, dan alat browser untuk digunakan tanpa upload arsip.
- [Cara mengompres ZIP ke ukuran tertentu (2 / 25 MB, 100 KB)](https://freetoolonline.com/guides/id/how-to-compress-a-zip-file-to-a-specific-size.html) [lastmod=2026-07-06]
  Mencapai ukuran ZIP yang tepat (2 MB, batas email 25 MB, batas formulir 100 KB) tidak deterministik. Tiga hal benar-benar yang menentukannya. Urutan alat yang tepat, per batas.
- [Cara Mengonversi Foto iPhone ke JPG](https://freetoolonline.com/guides/id/how-to-convert-iphone-photo-to-jpg.html) [lastmod=2026-07-06]
  Konversi foto iPhone dari HEIC ke JPG tanpa iCloud, aplikasi terinstal, atau desktop. Panduan browser yang menangani foto tunggal dan batch dengan sama.
- [Cara Mengonversi Satuan Online - Gratis dan Tanpa Akun](https://freetoolonline.com/guides/id/how-to-convert-units-online.html) [lastmod=2026-07-06]
  Konversi satuan online gratis: panjang, berat, suhu, dan lainnya. Pilih kategori, pilih satuan asal dan tujuan, lalu ketik nilai - semua di browser, tanpa akun.
- [Cara mengubah teks menjadi gambar (PNG) online gratis](https://freetoolonline.com/guides/id/how-to-turn-text-into-an-image-online.html) [lastmod=2026-07-06]
  Beri gaya pada teks di browser Anda - pilih font, ukuran, ketebalan, warna, spasi, dan bayangan, lalu unduh sebagai gambar PNG. Gratis, tanpa unggah, tanpa akun.
- [Cara menguji keyboard online langkah demi langkah](https://freetoolonline.com/guides/id/how-to-test-a-keyboard-online-step-by-step.html) [lastmod=2026-07-06]
  Tes keyboard di browser dalam 60 detik: buka halaman, tekan setiap tombol, lihat setiap tombol menyala. Deteksi tombol yang tidak berfungsi, tombol macet, dan kegagalan tombol modifier tanpa menginstal apa pun.
- [Cara menguji layar sentuh untuk titik mati](https://freetoolonline.com/guides/id/how-to-test-a-touchscreen-for-bad-spots.html) [lastmod=2026-07-06]
  Pemeriksaan browser-saja 60 detik untuk area tidak responsif pada layar sentuh ponsel, tablet, atau laptop. Apa arti setiap pola kegagalan dan kapan menghubungi garansi.
- [Cara Mengurangi Ukuran File ZIP - apa yang terkompres, apa yang tidak](https://freetoolonline.com/guides/id/how-to-reduce-zip-file-size.html) [lastmod=2026-07-06]
  Mengapa sebagian besar ZIP tidak mengecil dan bagaimana benar-benar mengurangi satu - apa yang terkompres (teks, CSV, kode sumber), apa yang tidak (JPG, MP4, MP3), dan alur yang berhasil.
- [Cara Mengurangi Ukuran File Zip Online (Gratis)](https://freetoolonline.com/guides/id/how-to-reduce-zip-file-size-online.html) [lastmod=2026-07-06]
  Kurangi ukuran file zip online dan gratis. Mengapa zip Anda besar, apa yang dapat dikompres dengan baik, dan tiga taktik untuk muat ke batas email atau unggahan 25 MB apa pun.
- [Cara menjalankan chat AI pribadi di browser - gratis](https://freetoolonline.com/guides/id/how-to-run-a-private-ai-chat-in-your-browser.html) [lastmod=2026-07-06]
  Jalankan chatbot AI di browser Anda - model dimuat di perangkat, jadi percakapan tetap pribadi, tanpa unggah dan tanpa akun. Perlu browser dengan WebGPU.
- [Cara Menyembunyikan Pesan dalam Gambar (Steganografi)](https://freetoolonline.com/guides/id/how-to-hide-a-message-in-an-image.html) [lastmod=2026-07-06]
  Cara menyembunyikan pesan teks rahasia di dalam gambar PNG dan membacanya kembali, opsional dengan kata sandi - gratis, di browser, tidak ada yang diunggah.
- [Cara meratakan PDF - dan kapan melakukannya](https://freetoolonline.com/guides/id/how-to-flatten-a-pdf-and-when-to-do-it.html) [lastmod=2026-07-06]
  Meratakan PDF memanggang field formulir, anotasi, dan tanda tangan menjadi grafik halaman statis. Baca apa yang dilakukan perataan, kapan Anda membutuhkannya, dan kapan tidak.
- [Cara merekam layar Anda online - layar, kamera, atau mikrofon](https://freetoolonline.com/guides/id/how-to-record-your-screen-online.html) [lastmod=2026-07-06]
  Rekam layar, kamera, atau mikrofon Anda di browser, buramkan wajah di perangkat Anda, dan unduh sebagai WebM atau MP4. Tanpa unggah, tanpa instal, tanpa akun.
- [Checklist Tes Perangkat untuk Kerja Jarak Jauh (2026)](https://freetoolonline.com/guides/id/device-test-checklist-for-remote-work.html) [lastmod=2026-07-06]
  Jalankan checklist tes perangkat 8 poin sebelum rapat jarak jauh berikutnya. Kamera, mic, LCD, keyboard - jalur cepat 60 detik atau jalur lengkap 5 menit, tanpa instalasi.
- [Code Beautifier Langkah demi Langkah: JS, CSS, HTML dan JSON](https://freetoolonline.com/guides/id/code-formatter-beautifier-step-by-step.html) [lastmod=2026-07-06]
  Panduan langkah demi langkah untuk memformat JavaScript, CSS, HTML, dan JSON dengan code beautifier gratis - apa yang dibutuhkan setiap bahasa dan kapan menggunakan JSON Parser.
- [CSS Minifier vs Compressor](https://freetoolonline.com/guides/id/css-minifier-vs-compressor.html) [lastmod=2026-07-06]
  CSS minifier vs compressor - penghapusan whitespace vs kompresi gzip/brotli, apa yang dihemat masing-masing, dan urutan pipeline yang tepat untuk pengiriman produksi.
- [CSS Minifier vs Uglifier vs Tree-Shaking](https://freetoolonline.com/guides/id/css-minifier-vs-uglifier-vs-tree-shaking.html) [lastmod=2026-07-06]
  Tiga taktik pengurangan ukuran untuk satu tujuan. Minifier menghapus whitespace, uglifier mengubah nama simbol, tree-shaking membuang aturan tak terpakai. Kapan masing-masing bermanfaat.
- [CSS Unminifier vs Prettier: Kapan Menggunakan Masing-masing (Baca CSS Terkirim atau Format Sumber)](https://freetoolonline.com/guides/id/css-unminifier-vs-prettier-when-to-use-each.html) [lastmod=2026-07-06]
  Kapan CSS Unminifier adalah alat yang tepat untuk membaca CSS yang dikirim dengan cepat, kapan Prettier adalah alat yang tepat untuk memformat sumber yang akan Anda commit, dan apa yang keduanya tidak dapat memulihkan setelah build tree-shaking.
- [CSV vs JSON - Kapan Menggunakan Setiap Format Data](https://freetoolonline.com/guides/id/csv-vs-json-data-formats.html) [lastmod=2026-07-06]
  Format data CSV vs JSON - kapan memilih baris-dan-kolom vs objek terstruktur, dengan trade-off parsing, ukuran, dan tooling untuk alur kerja 2026.
- [Decode MD5: yang biasanya dimaksud pembaca dan tujuan selanjutnya](https://freetoolonline.com/guides/id/md5-decode.html) [lastmod=2026-07-06]
  Panduan decode MD5: MD5 satu arah, jadi "decode" biasanya berarti membuat hash, mencari plaintext yang dikenal, atau memilih hash berbeda. Rute ke alat yang tepat.
- [Dekripsi Hash MD5: Kapan Lookup Bekerja, Kapan Tidak](https://freetoolonline.com/guides/id/md5-hash-decrypt.html) [lastmod=2026-07-06]
  Dekripsi hash MD5 - pertanyaan praktis. Lookup balik bekerja untuk input pendek umum yang ada di rainbow table dan kamus; untuk rahasia acak, brute force adalah lantainya.
- [Dekripsi MD5 - Pencarian Terbalik dan Generator Hash Online](https://freetoolonline.com/guides/id/md5-decrypter.html) [lastmod=2026-07-06]
  Gunakan alat MD5 gratis untuk membuat hash, membandingkan checksum, atau mencari nilai yang diketahui. Berjalan di browser Anda - tanpa unggahan, tanpa akun.
- [Dekripsi MD5 online: mengapa Anda tidak bisa, dan jalan pintas praktis](https://freetoolonline.com/guides/id/md5-decrypt-online.html) [lastmod=2026-07-06]
  MD5 satu arah - tidak bisa didekripsi. Inilah apa yang sebenarnya dimaksud "dekripsi MD5 online" dan jalan aman untuk mencari hash MD5 yang dikenal. Terakhir ditinjau 2026-05-18.
- [Editor Foto Online Gratis - Potong, Ubah Ukuran, Filter di Peramban](https://freetoolonline.com/guides/id/photo-editor-online-pixlr.html) [lastmod=2026-07-06]
  Editor foto gratis di peramban: potong, ubah ukuran, tambah filter dan teks, tanpa unggah, tanpa akun. Edit foto online di perangkat. Last reviewed 2026-07-02.
- [Editor Foto vs App Grafis vs Batch](https://freetoolonline.com/guides/id/photo-editor-vs-graphics-app-vs-batch-processor.html) [lastmod=2026-07-06]
  Tiga kategori alat gambar menyelesaikan tiga masalah berbeda. Editor foto untuk satu gambar, app grafis untuk desain, batch processor untuk banyak file sekaligus.
- [Ekstrak Frame dari GIF](https://freetoolonline.com/guides/id/how-to-extract-frames-from-a-gif-for-a-social-post.html) [lastmod=2026-07-06]
  Cara mengekstrak frame dari GIF untuk postingan sosial - pilih frame hero, pertahankan transparansi, dan kirim gambar statis yang dimuat cepat.
- [Ekstrak Frame GIF: PNG atau JPG, Format Mana yang Dipilih?](https://freetoolonline.com/guides/id/extract-gif-frames-png-vs-jpg-which-format.html) [lastmod=2026-07-06]
  PNG mempertahankan saluran alfa dan tanpa kehilangan untuk pengeditan; JPG lebih kecil dan ideal untuk thumbnail. Kapan memilih masing-masing saat mengekstrak frame GIF.
- [Ekstraktor Frame GIF - ambil frame individu dari GIF animasi](https://freetoolonline.com/guides/id/gif-frame-extractor.html) [lastmod=2026-07-06]
  Panduan langkah demi langkah mengekstrak frame dari GIF animasi: pilih PNG atau JPG, atur FPS, unduh tiap frame. Terakhir ditinjau 2026-05-14.
- [FFmpeg Online vs FFmpeg Lokal - Kapan Masing-masing Menang](https://freetoolonline.com/guides/id/ffmpeg-online-vs-local-ffmpeg-when-each-wins.html) [lastmod=2026-07-06]
  FFmpeg online (wasm browser) vs FFmpeg CLI lokal - batas ukuran, privasi, kecepatan, dan cakupan codec. Kapan memilih masing-masing untuk pemrosesan video/audio.
- [FFmpeg Online vs Video Converter - Alat Mana Yang Dibuka](https://freetoolonline.com/guides/id/ffmpeg-online-vs-video-converter-which-to-pick.html) [lastmod=2026-07-06]
  Panduan routing untuk tugas "ffmpeg online": kapan membuka FFmpeg Online dan kapan rute khusus format Video Converter atau GIF Maker lebih cepat. Lima aturan routing, satu keputusan dalam 30 detik.
- [File ke ZIP - Panduan Kompresor File Online](https://freetoolonline.com/guides/id/file-to-zip.html) [lastmod=2026-07-06]
  Cara mengubah sebuah file menjadi arsip ZIP online: kapan ZIP benar-benar memperkecil file, kapan tidak, dan di mana alat pembuatnya.
- [File ZIP Online: Cara membuat arsip ZIP secara online (gratis, di browser)](https://freetoolonline.com/guides/id/online-zip-file.html) [lastmod=2026-07-06]
  Buat arsip ZIP online - tempel file atau folder ke pembuat di browser, dapatkan .zip yang bisa diunduh, tanpa instalasi, tanpa pendaftaran. Terakhir ditinjau 2026-05-18.
- [Folder Ke Zip: Kapan Dan Cara Mengarsipkan Folder Online (Panduan Gratis)](https://freetoolonline.com/guides/id/folder-to-zip.html) [lastmod=2026-07-06]
  Panduan folder ke zip: kapan mengarsipkan folder menjadi satu .zip benar-benar menghemat ruang, cara memilih alat yang tepat, dan di mana pembuat dalam browser berada. Gratis, tanpa instal.
- [Format foto iPhone dijelaskan](https://freetoolonline.com/guides/id/iphone-photo-format-explained-heic-jpg-png-raw.html) [lastmod=2026-07-06]
  Foto iPhone bisa berupa HEIC, JPG, PNG, atau RAW. Inilah apa setiap format itu, kapan iOS menggunakannya, dan yang tepat untuk dikonversi sebelum berbagi di luar Apple.
- [Formatter JSON online - kapan digunakan](https://freetoolonline.com/guides/id/json-formatter-when.html) [lastmod=2026-07-06]
  Formatter JSON Online Kapan Digunakan - referensi cepat bersama Formatter JSON Online.
- [Formatter JSON online - langkah demi langkah](https://freetoolonline.com/guides/id/json-formatter-step-by-step.html) [lastmod=2026-07-06]
  Formatter JSON Online Langkah Demi Langkah - referensi cepat bersama Formatter JSON Online.
- [Formatter JSON online vs alternatif](https://freetoolonline.com/guides/id/json-formatter-vs-alternatives.html) [lastmod=2026-07-06]
  Formatter JSON Online Vs Alternatif - referensi cepat bersama Formatter JSON Online.
- [Frame GIF vs Frame Rate GIF (FPS): Mana Yang Benar-benar Anda Butuhkan?](https://freetoolonline.com/guides/id/gif-frames-extract-vs-frame-rate-fps-explained.html) [lastmod=2026-07-06]
  Frame GIF adalah gambar diam di dalam GIF animasi; frame rate GIF (FPS) adalah kecepatan pemutaran. Panduan ini memberi tahu mana yang cocok dengan tugas Anda dalam satu kalimat dan cara memilih FPS yang tepat saat mengekstrak frame.
- [Gabung PDF Online Gratis - Gabungkan PDF di Browser Anda](https://freetoolonline.com/guides/id/merge-pdf-online-free-unlimited.html) [lastmod=2026-07-06]
  Gabungkan file PDF online gratis - satukan beberapa PDF jadi satu, atur ulang urutan sebelum ekspor, lalu unduh. Opsi di browser tanpa unggah dan tanpa akun.
- [Gambar ke Base64 - Sematkan di HTML/CSS vs Tautkan File Gambar](https://freetoolonline.com/guides/id/image-to-base64-embed-in-html-vs-link.html) [lastmod=2026-07-06]
  Haruskah Anda menyematkan gambar sebagai URL data base64 di HTML/CSS, atau menautkan file gambar? Aturan keputusan praktis dengan ambang byte konkret, trade-off cache dan HTTP/2, dan pemeriksaan kewarasan 30 detik.
- [Generator Angka Acak Online: Panduan Langkah demi Langkah](https://freetoolonline.com/guides/id/random-number-generator-step-by-step.html) [lastmod=2026-07-06]
  Panduan langkah demi langkah Generator Angka Acak Online: mengatur Min dan Max, membaca hasil, dan perbedaannya dengan dice roller dan coin flip.
- [Generator Kata Sandi vs. Alternatif: Mana yang Dipakai](https://freetoolonline.com/guides/id/password-generator-vs-alternatives.html) [lastmod=2026-07-06]
  Bandingkan generator kata sandi di browser dengan mengetik sendiri, menggunakan browser atau pengelola - lihat pendekatan mana yang menghasilkan kata sandi terkuat dan paling praktis.
- [Generator Kata Sandi: Kapan Menggunakannya](https://freetoolonline.com/guides/id/password-generator-when.html) [lastmod=2026-07-06]
  Pelajari kapan menggunakan generator kata sandi berbasis browser: pembuatan akun, reset kata sandi, dan situasi apa pun yang membutuhkan kata sandi unik dan tidak terduga.
- [Generator Kode QR - Praktik Terbaik](https://freetoolonline.com/guides/id/qr-code-generator-best-practices.html) [lastmod=2026-07-06]
  Kode QR yang selalu dipindai adalah serangkaian kecil pilihan: koreksi kesalahan, kontras, ukuran, payload. Default yang bekerja, yang gagal di lapangan.
- [GIF ke Bingkai - ekstrak setiap bingkai sebagai PNG atau JPG](https://freetoolonline.com/guides/id/gif-to-frame.html) [lastmod=2026-07-06]
  Unggah GIF animasi dan ekstrak setiap bingkai sebagai PNG atau JPG terpisah. Tanpa instalasi. File dihapus otomatis. Ditinjau 2026-06-10.
- [GIF ke Frame: Simpan setiap frame animasi sebagai PNG atau JPG](https://freetoolonline.com/guides/id/gif-into-frames.html) [lastmod=2026-07-06]
  Ubah GIF menjadi frame individual online. Unggah animasi, pilih PNG atau JPG, dan unduh setiap frame sebagai gambar diam. Gratis, tanpa instal. Direview terakhir: 2026-05-20.
- [Hapus Baris Duplikat Langkah demi Langkah: Bersihkan Daftar di Browser Anda](https://freetoolonline.com/guides/id/remove-duplicate-lines-step-by-step.html) [lastmod=2026-07-06]
  Panduan langkah demi langkah untuk alat gratis Remove Duplicate Lines: apa yang dianggap duplikat, baris mana yang dipertahankan, dan perbandingannya dengan spreadsheet atau baris perintah.
- [Hash MD5 di browser - apa yang sebenarnya dilakukan panggilan seperti `common::md5::gethash64string`](https://freetoolonline.com/guides/id/common-md5-gethash64string.html) [lastmod=2026-07-06]
  Hash MD5 dijelaskan untuk pembaca yang mencari nama metode gaya framework. Apa yang dikembalikan MD5, kapan pencarian terbalik dari cache berlaku, dan kapan tidak menggunakan MD5.
- [HEIC ke JPG: apa yang sebenarnya dilakukan konverter](https://freetoolonline.com/guides/id/heic-to-jpg-claims-what-actually-works.html) [lastmod=2026-07-06]
  Bagaimana /heic-to-jpg.html sebenarnya bekerja: decoding libheif, re-encoding JPG, kontrol EXIF + kualitas, plus klaim yang TIDAK dibuat alat. Baca sebelum mengunggah.
- [HEIC vs JPG vs WebP](https://freetoolonline.com/guides/id/heic-vs-jpg-vs-webp.html) [lastmod=2026-07-06]
  Foto iPhone adalah HEIC; Windows dan Android mengharapkan JPG. Apa yang setiap format kompres dengan baik, kapan WebP adalah pilihan tepat untuk web dan cara mengkonversi di antaranya.
- [ImageMagick Online vs Alat Khusus - Pilih Yang Mana](https://freetoolonline.com/guides/id/imagemagick-online-vs-task-specific-tools-which-to-pick.html) [lastmod=2026-07-06]
  Panduan perutean: kapan membuka ImageMagick Online dan kapan alat khusus (Crop, Resize, Compress, HEIC to JPG) adalah jalur tercepat. Lima aturan, satu keputusan dalam 30 detik.
- [Izin Tes Kamera Diblokir: Cara Mengizinkan Akses Kamera di Browser Anda](https://freetoolonline.com/guides/id/camera-test-permission-blocked-how-to-allow-it.html) [lastmod=2026-07-06]
  Tes kamera tidak menampilkan apa-apa atau tidak meminta prompt izin? Izinkan akses webcam di Chrome, Firefox, Safari, dan Edge - jalur klik persis per browser, plus seperti apa diblokir vs diabaikan.
- [Izin Tes Mikrofon Diblokir: Cara Mengizinkan Akses Mic di Browser Anda](https://freetoolonline.com/guides/id/microphone-test-permission-blocked-how-to-allow-it.html) [lastmod=2026-07-06]
  Tes mikrofon menunjukkan meter datar atau tidak ada permintaan izin? Izinkan akses mic di Chrome, Firefox, Safari, dan Edge - jalur klik yang tepat per browser, plus seperti apa diblokir vs diabaikan.
- [Jam Alarm Online: Panduan Langkah demi Langkah](https://freetoolonline.com/guides/id/alarm-clock-step-by-step.html) [lastmod=2026-07-06]
  Atur waktu alarm, perhatikan notifikasi di layar, dan lihat persis apa yang terjadi - dan tidak terjadi - saat alarm berbunyi.
- [Jam Analog Online: Cara Membaca Jarum Jam](https://freetoolonline.com/guides/id/analog-clock-step-by-step.html) [lastmod=2026-07-06]
  Lihat cara jarum jam, menit, dan detik menunjukkan waktu, mengapa gerakannya terlihat mulus, dan kapan jam analog langsung ini berguna.
- [Jam Digital Online: Cara Membaca Tampilan](https://freetoolonline.com/guides/id/digital-clock-step-by-step.html) [lastmod=2026-07-06]
  Lihat apa yang ditunjukkan tampilan HH:MM:SS dan baris tanggal, seberapa sering diperbarui, dan kapan jam digital besar di browser ini berguna.
- [Jenis Kata Sandi ZIP - kuat vs lemah, dijelaskan (kapan penghapus online dapat membantu)](https://freetoolonline.com/guides/id/zip-password-types-strong-vs-weak-explained.html) [lastmod=2026-07-06]
  Sebelum mengunggah ZIP yang dilindungi kata sandi ke /remove-zip-password.html, periksa jenis enkripsi. ZIP 2.0 lama + kata sandi pendek atau numerik dapat dipulihkan dalam hitungan detik. WinZip AES-256 dengan kata sandi kuat tidak. Panduan keputusan 30 detik agar tidak menyia-nyiakan upload.
- [Jenis Konten Kode QR: URL, vCard, Wi-Fi, Teks - Mana yang Dipilih](https://freetoolonline.com/guides/id/qr-code-content-types-url-vcard-wifi-text-which-to-pick.html) [lastmod=2026-07-06]
  Pilih jenis konten yang tepat untuk kode QR: URL vs vCard vs Wi-Fi vs teks - apa yang dienkode masing-masing dan mana yang cocok untuk kartu nama atau brosur.
- [JPG vs JPEG - apakah sama?](https://freetoolonline.com/guides/id/jpg-vs-jpeg-are-they-the-same.html) [lastmod=2026-07-06]
  JPG dan JPEG adalah format gambar yang sama. Kedua ekstensi ada karena batas tiga huruf lama dari Windows. Inilah ceritanya dan nama mana yang lebih disukai.
- [JPG vs PNG untuk web](https://freetoolonline.com/guides/id/jpg-vs-png-for-web.html) [lastmod=2026-07-06]
  JPG vs PNG untuk gambar web - kapan kompresi lossy menang, kapan lossless + transparansi penting, dan bagaimana WebP mengubah perhitungan di 2026.
- [JPG yang Dikompres Terlihat Buram? Tiga Penyebab (dan Perbaikan Cepat)](https://freetoolonline.com/guides/id/compressed-jpg-looks-blurry-three-causes.html) [lastmod=2026-07-06]
  JPG terlihat buram setelah kompresi? Tiga penyebab umum - kualitas terlalu rendah, encode ulang berulang, sumber upscaled - masing-masing dengan perbaikan cepat.
- [JSON Parser Online: Validasi vs Format vs Tampilan Pohon - Fitur Mana Yang Anda Butuhkan](https://freetoolonline.com/guides/id/json-parser-validate-vs-format-vs-tree-view.html) [lastmod=2026-07-06]
  Validasi, format, atau jelajahi JSON? Panduan 30 detik untuk memilih sub-fitur yang tepat dari parser JSON gratis di freetoolonline.com - di browser.
- [JSON vs YAML vs TOML, Dijelaskan](https://freetoolonline.com/guides/id/json-vs-yaml-vs-toml-config-formats-explained.html) [lastmod=2026-07-06]
  Tiga format konfigurasi, tiga ergonomi. JSON untuk mesin, YAML untuk manusia, TOML untuk konfigurasi dangkal. Kompromi yang menentukan apa yang dibutuhkan proyek Anda.
- [Kalkulator Persen Langkah demi Langkah](https://freetoolonline.com/guides/id/percentage-calculator-step-by-step.html) [lastmod=2026-07-06]
  Kalkulator Persen langkah demi langkah - langkah pasti untuk menggunakan Percentage Calculator dari awal hingga hasil.
- [Kalkulator Persen Versus Alternatif](https://freetoolonline.com/guides/id/percentage-calculator-vs-alternatives.html) [lastmod=2026-07-06]
  Kalkulator Persen vs alternatif - bagaimana Percentage Calculator dibandingkan dengan spreadsheet atau layanan online berbasis unggah.
- [Kapan Menggunakan Kalkulator Persen](https://freetoolonline.com/guides/id/percentage-calculator-when.html) [lastmod=2026-07-06]
  Kalkulator Persen: kapan menggunakan Percentage Calculator dan apa yang diharapkan saat alat ini tepat digunakan.
- [Kapan Menggunakan Pengacak Daftar Acak](https://freetoolonline.com/guides/id/random-list-shuffler-when.html) [lastmod=2026-07-06]
  Kapan pengacak daftar acak adalah pilihan yang tepat: urutan giliran, pembagian tugas, dan daftar undian - dan kapan sebaiknya menggunakan alat pemilih tunggal.
- [Kapan Menggunakan Perekam Suara Online](https://freetoolonline.com/guides/id/voice-recorder-when.html) [lastmod=2026-07-06]
  Kapan Menggunakan Perekam Suara Online - kapan membuka Online Voice Recorder sesuai dan apa yang diharapkan.
- [Kata Sandi PDF - Pemilik vs Pengguna](https://freetoolonline.com/guides/id/pdf-password-types-owner-vs-user.html) [lastmod=2026-07-06]
  Jenis kata sandi PDF - kata sandi pemilik vs pengguna, apa yang masing-masing blokir, kapan menetapkan setiap jenis, cara memilih kata sandi yang benar-benar melindungi dokumen.
- [Kecilkan Ukuran File ZIP Online - Panduan Gratis Browser](https://freetoolonline.com/guides/id/reduce-zip-file-size-online.html) [lastmod=2026-07-06]
  Perkecil arsip ZIP di browser Anda - apa yang benar-benar menghemat byte, apa yang tidak, dan cara mencapai batas email 25 MB tanpa memecah file.
- [Kompres file ZIP ke ukuran lebih kecil: kapan arsip benar-benar mengecil](https://freetoolonline.com/guides/id/compress-zip-file-to-smaller-size.html) [lastmod=2026-07-06]
  Panduan praktis untuk membuat arsip ZIP lebih kecil: input mana yang benar-benar mengecil, mana yang tidak, dan alat browser yang membangun arsip. Direview terakhir: 2026-05-17.
- [Kompres File Zip Online - Panduan Lengkap di Browser](https://freetoolonline.com/guides/id/kompres-file-zip.html) [lastmod=2026-07-06]
  Panduan kompres file zip online di browser. Bundel file dan folder menjadi satu arsip .zip, tambahkan kata sandi opsional, unduh dalam hitungan detik. Gratis, tanpa instalasi.
- [Kompres Folder Online - gratis, berbasis browser, tanpa instalasi](https://freetoolonline.com/guides/id/compress-folder-online.html) [lastmod=2026-07-06]
  Cara mengompres folder online: seret folder, layanan membundel satu .zip, unduh. Berbasis browser, tanpa instalasi, kata sandi opsional. Ditinjau 2026-05-24.
- [Kompres Folder Untuk Email](https://freetoolonline.com/guides/id/how-to-compress-a-folder-for-email.html) [lastmod=2026-07-06]
  Kompres folder untuk email dalam waktu kurang dari satu menit. Langkah demi langkah untuk Windows dan macOS, peringatan ukuran email pada 2026, dan kapan menambahkan kata sandi sebelum berbagi.
- [Kompres JPEG Tanpa Kehilangan Kualitas: Kualitas vs Ukuran](https://freetoolonline.com/guides/id/compress-jpeg-without-losing-quality-quality-vs-size.html) [lastmod=2026-07-06]
  Pilih pengaturan kualitas JPEG yang tepat: kapan 75 terlihat identik dengan asli, kapan 95 membuang byte, dan kapan kompresi otomatis AI mengalahkan keduanya.
- [Kompres PDF Online Gratis - Perkecil Ukuran PDF](https://freetoolonline.com/guides/id/compress-pdf-online-free.html) [lastmod=2026-07-06]
  Perkecil PDF gratis online: ratakan berkas penuh formulir atau ekstrak-kompres-susun ulang PDF pindai dengan alat kami. Tanpa akun. Ditinjau 2026-06-11.
- [Kompres Ukuran ZIP: Seberapa Lebih Kecil Arsip Sebenarnya?](https://freetoolonline.com/guides/id/compress-zip-size.html) [lastmod=2026-07-06]
  Seberapa banyak kompresi ZIP dapat memotong ukuran folder? Heuristik kompresibilitas ditambah rute di browser ke pembuatnya. Gratis, tanpa instalasi. Terakhir ditinjau 2026-05-15.
- [Kompres vs Konversi Gambar](https://freetoolonline.com/guides/id/when-to-compress-vs-convert-an-image.html) [lastmod=2026-07-06]
  Kompres atau konversi gambar? Jawaban dalam 30 detik - aturan keputusan untuk ukuran file, pilihan format, trade-off kualitas, dan alat yang tepat untuk setiap pekerjaan.
- [Kompres Zip - Kapan Arsip Mengecilkan Ukuran](https://freetoolonline.com/guides/id/kompres-zip.html) [lastmod=2026-07-06]
  Panduan kompres zip: kapan format .zip benar-benar mengecilkan ukuran, kapan tidak, dan di mana alat pembuat arsip berada di browser. Gratis, tanpa instalasi.
- [Kompres ZIP: kapan kompresi ZIP menghemat ruang (dan kapan tidak)](https://freetoolonline.com/guides/id/compress-zip.html) [lastmod=2026-07-06]
  Panduan singkat berorientasi pembaca tentang mengompres file ke ZIP: kapan kompresi ZIP benar-benar menghemat ruang, kapan tidak, dan di mana pembuat ZIP browser berada.
- [Kompresi ZIP - panduan kompresi zip](https://freetoolonline.com/guides/id/zip-compress.html) [lastmod=2026-07-06]
  Panduan kompresi ZIP: kapan ZIP mengecilkan file, kapan tidak, dan cara membundel folder ke dalam satu arsip online. Gratis, tanpa instal. Direview terakhir: 2026-05-18.
- [Kompresor File Online: ZIP Sebuah Folder vs Kompres Sebuah Gambar](https://freetoolonline.com/guides/id/file-compressor-online-when-to-zip-vs-when-to-compress-image.html) [lastmod=2026-07-06]
  Panduan perutean untuk pertanyaan kompresor file: kapan ZIP sebuah folder untuk dikirim vs kapan mengompres satu gambar untuk mengurangi ukuran byte. Aturan 30 detik, lima langkah.
- [Kompresor File vs ZIP](https://freetoolonline.com/guides/id/file-compressor-vs-zip-what-to-pick.html) [lastmod=2026-07-06]
  "Kompresor file" terlalu umum. Pilih berdasarkan tipe file: ZIP folder, kompres foto, konversi HEIC, bundel PDF atau gunakan tautan transfer untuk video.
- [Kompresor File Zip Online - Bundel dan Susutkan Folder menjadi Satu ZIP](https://freetoolonline.com/guides/id/zip-file-compressor-online.html) [lastmod=2026-07-06]
  Kompresor file zip online: bundel file atau seluruh folder menjadi satu .zip, atur kata sandi opsional, dan unduh. Gratis, di browser, tanpa instalasi.
- [Kompresor file ZIP online - panduan](https://freetoolonline.com/guides/id/online-zip-file-compressor.html) [lastmod=2026-07-06]
  Panduan kompresor file ZIP online: bundel file atau seluruh folder menjadi satu .zip, set kata sandi opsional, dan unduh. Gratis, di browser, tanpa instal.
- [Kompresor File: Pilih Berdasarkan Tipe File](https://freetoolonline.com/guides/id/file-compressor.html) [lastmod=2026-07-06]
  Kompresor file gratis yang memilih alat browser yang tepat berdasarkan yang Anda miliki: ZIP folder, kompres foto, konversi HEIC, bundel PDF atau gunakan tautan transfer.
- [Kompresor Ukuran File Zip - Panduan Online Gratis](https://freetoolonline.com/guides/id/zip-file-size-compressor.html) [lastmod=2026-07-06]
  Gunakan kompresor ukuran file zip online untuk membundel folder file menjadi satu .zip dan mengurangi total ukuran sebelum mengirim. Gratis, tanpa install. Terakhir ditinjau 2026-05-19.
- [Kompresor ZIP Online - kapan ia menyusutkan folder dan kapan tidak](https://freetoolonline.com/guides/id/zip-compressor-online.html) [lastmod=2026-07-06]
  Kompresor zip online menggabungkan folder file menjadi satu .zip. Pemotongan ukuran tergantung pada tipe input - teks menyusut, JPG/MP4 tidak. Tautan alat ada di dalam.
- [Kompresor ZIP: Kompres File Menjadi Arsip ZIP yang Lebih Kecil](https://freetoolonline.com/guides/id/zip-compressor.html) [lastmod=2026-07-06]
  Panduan singkat berorientasi tugas pembaca tentang penggunaan kompresor zip: kapan memilih kompresi zip untuk folder file, apa yang dipertahankan dan tidak dipertahankan oleh arsip .zip yang dihasilkan, dan di mana alat berbasis browser berada.
- [Konversi 100 Foto HEIC ke JPG](https://freetoolonline.com/guides/id/how-to-convert-100-heic-photos-to-jpg.html) [lastmod=2026-07-06]
  Cara mengonversi 100+ foto HEIC ke JPG di browser tanpa upload. Alur batch, pengaturan kualitas, preservasi EXIF, dan jalur Windows/Mac.
- [Konversi FFmpeg Online Macet? Tiga Perbaikan (dan Tes 30 Detik)](https://freetoolonline.com/guides/id/ffmpeg-online-conversion-stalled-three-fixes.html) [lastmod=2026-07-06]
  Konversi FFmpeg macet? Tiga penyebab umum - batas memori browser, tab latar belakang, codec tidak didukung - masing-masing dengan perbaikan dan tes 30 detik.
- [Konversi milidetik ke tanggal - panduan](https://freetoolonline.com/guides/id/convert-milliseconds-to-date.html) [lastmod=2026-07-06]
  Konversi milidetik ke tanggal online: tempel timestamp Unix 13 digit dan baca tanggal dan waktu lokal. Gratis, hanya di browser, tanpa instal. Direview terakhir: 2026-05-17.
- [Konverter File Zip - Apa yang Sebenarnya Dilakukannya](https://freetoolonline.com/guides/id/zip-file-converter-what-it-actually-does.html) [lastmod=2026-07-06]
  "Konverter file zip" adalah pencarian yang salah. ZIP adalah wadah, bukan format. Tiga niat nyata: bundel, ekstrak, atau kompres gambar. Pilih berdasarkan niat dalam 30 detik.
- [Konverter file ZIP - panduan singkat](https://freetoolonline.com/guides/id/zip-file-converter.html) [lastmod=2026-07-06]
  Panduan singkat untuk konverter file ZIP di freetoolonline.com. Kompres folder dan file menjadi arsip ZIP online, gratis, tanpa instal. Direview terakhir: 2026-05-19.
- [Konverter GIF ke Frame - Ekstrak Setiap Frame sebagai PNG atau JPG](https://freetoolonline.com/guides/id/gif-to-frames-converter.html) [lastmod=2026-07-06]
  Ubah GIF animasi menjadi frame individual. Upload, pilih PNG atau JPG dan unduh setiap frame sebagai gambar terpisah. Tanpa instalasi. Diperbarui 2026-06-10.
- [Konverter HEIC vs JPG](https://freetoolonline.com/guides/id/heic-vs-jpg-converter-when-each-wins.html) [lastmod=2026-07-06]
  Kapan mengkonversi HEIC ke JPG, kapan mempertahankan HEIC asli, dan kapan tidak ada jalur yang menang. Aturan keputusan untuk sinkronisasi iCloud, penerima Windows, dan pengeditan.
- [Konverter video HD online - kapan digunakan](https://freetoolonline.com/guides/id/hd-video-converter-when.html) [lastmod=2026-07-06]
  Konverter Video HD Online Kapan Digunakan - referensi cepat bersama Konverter Video HD Online.
- [Konverter video HD online - langkah demi langkah](https://freetoolonline.com/guides/id/hd-video-converter-step-by-step.html) [lastmod=2026-07-06]
  Panduan langkah demi langkah mengonversi video HD di browser - ubah format atau ekstrak trek audio dengan FFmpeg.wasm, tanpa unggah dan tanpa instalasi.
- [Konverter video HD online vs alternatif](https://freetoolonline.com/guides/id/hd-video-converter-vs-alternatives.html) [lastmod=2026-07-06]
  Konverter Video HD Online Vs Alternatif - referensi cepat bersama Konverter Video HD Online.
- [Konverter Video ke GIF Kapan Digunakan](https://freetoolonline.com/guides/id/video-gif-converter-when.html) [lastmod=2026-07-06]
  Konverter Video ke GIF Kapan Digunakan - kapan membuka Konverter Video ke GIF cocok untuk tugas dan apa yang diharapkan saat cocok.
- [Konverter Video ke GIF Langkah demi Langkah](https://freetoolonline.com/guides/id/video-gif-converter-step-by-step.html) [lastmod=2026-07-06]
  Konverter Video ke GIF Langkah demi Langkah - langkah-langkah persis untuk menjalankan Konverter Video ke GIF dari membuka hingga mengunduh hasilnya.
- [Konverter Video Ke Gif Vs Alternatif](https://freetoolonline.com/guides/id/video-gif-converter-vs-alternatives.html) [lastmod=2026-07-06]
  Konverter Video Ke Gif Vs Alternatif - bagaimana Konverter Video ke GIF dibandingkan dengan aplikasi desktop atau layanan berbasis unggah.
- [Konverter Video Online Gratis: Konversi ke MP4, MOV, MP3 dan Lainnya](https://freetoolonline.com/guides/id/video-converter-online-free.html) [lastmod=2026-07-06]
  Konversi video online gratis ke MP4, WebM, MOV, MP3 atau WAV. Potong segmen terlebih dahulu, tanpa akun. Diproses di server untuk file besar atau panjang.
- [Koreksi kesalahan kode QR dan kegagalan pemindaian](https://freetoolonline.com/guides/id/qr-code-error-correction-and-scan-failures.html) [lastmod=2026-07-06]
  Jika kode QR tidak dapat dipindai, penyebabnya biasanya satu dari empat: ukuran payload, tingkat koreksi kesalahan, kontras, atau skala cetak. Lihat mana.
- [Lempar Koin Online: Panduan Langkah demi Langkah](https://freetoolonline.com/guides/id/coin-flip-step-by-step.html) [lastmod=2026-07-06]
  Panduan langkah demi langkah Coin Flip Online: cara melempar, membaca hasil, serta perbedaannya dengan pelempar dadu dan roda pemutar nama.
- [Level Tes Mikrofon: Apa Arti Sunyi, Normal, dan Peak](https://freetoolonline.com/guides/id/microphone-test-online-quiet-normal-peak-meter.html) [lastmod=2026-07-06]
  Baca meter level tes mikrofon browser dalam bahasa sederhana: seperti apa sunyi, apa audio normal yang siap untuk panggilan, dan kapan peak berarti clipping.
- [MD5 ke teks - mengapa Anda tidak bisa mengonversi kembali (dan apa yang harus dilakukan)](https://freetoolonline.com/guides/id/md5-to-text-why-you-cannot-convert-back.html) [lastmod=2026-07-06]
  String MD5 32 karakter adalah sidik jari satu arah - tidak bisa dikonversi kembali ke teks yang menghasilkannya. Panduan ini menjelaskan mengapa, dan memberikan tiga tindakan yang benar-benar bekerja: verifikasi string yang diketahui, cari hash input umum, atau pilih hash berbeda untuk pekerjaan.
- [MD5 vs SHA-256 - Kapan Menggunakan Masing-Masing](https://freetoolonline.com/guides/id/md5-vs-sha256-when-to-hash.html) [lastmod=2026-07-06]
  MD5 vs SHA-256 - kecepatan, ketahanan tabrakan, dan kasus penggunaan konkret. Kapan fingerprinting cukup, kapan kekuatan kriptografi penting.
- [Membalik Teks: Kapan Ini Benar-Benar Berguna](https://freetoolonline.com/guides/id/reverse-text-when.html) [lastmod=2026-07-06]
  Kapan membalik teks berguna: cek palindrom, buat keterangan cermin, sandi sederhana, dan perbandingan dengan spreadsheet, rev, atau skrip.
- [Memulihkan File Zip Rusak - Opsi](https://freetoolonline.com/guides/id/recover-corrupt-zip-file-options.html) [lastmod=2026-07-06]
  Jalur praktis untuk zip yang tidak terbuka: unduh ulang, ekstraksi sebagian, alat perbaikan, dan kapan menyerah. Apa yang bekerja, apa tidak, apa yang dicoba dulu.
- [Mengapa HEIC Tidak Bisa Dibuka di Windows - Tiga Solusi Cepat](https://freetoolonline.com/guides/id/why-heic-wont-open-on-windows-three-fixes.html) [lastmod=2026-07-06]
  Saat Windows mengatakan tidak bisa membuka file .heic, tiga solusi cepat bekerja: pasang ekstensi HEIF gratis, gunakan penampil gratis, atau konversi ke JPG online.
- [Mengapa MD5 Tidak Dapat Didekripsi](https://freetoolonline.com/guides/id/why-md5-cannot-be-decrypted.html) [lastmod=2026-07-06]
  MD5 adalah hash satu arah, bukan enkripsi, jadi tidak ada kunci dekripsi. Apa yang sebenarnya dilakukan alat md5-decrypt, mengapa MD5 tidak aman untuk kata sandi, dan apa yang harus digunakan.
- [Mengecilkan Ukuran Zip Online - Panduan Gratis](https://freetoolonline.com/guides/id/mengecilkan-ukuran-zip.html) [lastmod=2026-07-06]
  Pelajari cara mengecilkan ukuran zip online: pilih file, kompres, dan unduh arsip yang lebih kecil di browser. Langkah demi langkah, tanpa instalasi. Terakhir ditinjau 2026-06-19.
- [Mengubah Ukuran File Zip: Apa Arti "Resize" Untuk File .zip](https://freetoolonline.com/guides/id/resize-zip-file.html) [lastmod=2026-07-06]
  "Mengubah ukuran file zip" biasanya berarti memperkecil arsip, kadang membaginya, kadang memperkecil foto di dalamnya sebelum re-zip. Tabel perutean + alat yang tepat untuk setiap kasus.
- [Metadata EXIF dan Kompresi Gambar: Apa yang Dihapus](https://freetoolonline.com/guides/id/image-compression-and-exif-metadata-what-gets-stripped.html) [lastmod=2026-07-06]
  Mengompres gambar sering menghapus metadata EXIF - GPS, kamera, stempel waktu. Apa yang dihapus encoder secara default, kapan menyimpannya, dan kapan menghapusnya dengan sengaja.
- [Milidetik Ke Tanggal - membaca milidetik epoch sebagai tanggal](https://freetoolonline.com/guides/id/millisecond-to-date.html) [lastmod=2026-07-06]
  Tempel nilai milidetik epoch 13 digit dan baca kembali sebagai tanggal manusia. Berjalan di browser Anda, tanpa upload, tanpa akun. Terakhir ditinjau 2026-05-20.
- [Milidetik ke tanggal: UTC vs waktu lokal, mengapa bisa terlihat keliru](https://freetoolonline.com/guides/id/milliseconds-to-date-utc-vs-local-time.html) [lastmod=2026-07-06]
  Konversi milidetik ke tanggal: UTC vs waktu lokal, mengapa hasil Anda bisa meleset beberapa jam, dan cara memverifikasi nilai mana yang benar. Di peramban, gratis.
- [Millis Sekarang: Tampilkan Timestamp Unix Sekarang dalam Milidetik](https://freetoolonline.com/guides/id/current-millis.html) [lastmod=2026-07-06]
  Millis sekarang berarti apa yang Date.now() kembalikan saat ini - integer 13 digit yang menghitung milidetik sejak epoch Unix. Cara membaca, menyalin, dan mengonversi kembali ke tanggal yang dapat dibaca.
- [Minify CSS dan JS untuk Cold Start](https://freetoolonline.com/guides/id/how-to-minify-css-js-for-cloud-run-cold-start.html) [lastmod=2026-07-06]
  Minify CSS dan JS untuk mengurangi cold-start Cloud Run dan ukuran bundle Cloudflare Workers. Alat, flag build, dan penghematan latensi yang terukur.
- [MP4 ke GIF Online Gratis: Potong, Ubah Ukuran, dan Ekspor GIF Animasi](https://freetoolonline.com/guides/id/mp4-to-gif-online-free.html) [lastmod=2026-07-06]
  Ubah klip MP4 menjadi GIF animasi online gratis: potong jendela 3 sampai 10 detik, atur lebar dan frame rate, lalu unduh. Dibangun di atas alat GIF Maker.
- [MP4 vs MOV vs MKV - Container Mana Kapan](https://freetoolonline.com/guides/id/mp4-vs-mov-vs-mkv-which-container-when.html) [lastmod=2026-07-06]
  Tiga container video dibandingkan. MP4 untuk di mana saja, MOV untuk pipeline Apple, MKV untuk arsip dengan banyak track. Aturan jelas untuk memilih dan mengonversi.
- [MP4 vs WebM untuk Web](https://freetoolonline.com/guides/id/mp4-vs-webm-for-web.html) [lastmod=2026-07-06]
  MP4 diputar di setiap browser; WebM 20-30 persen lebih kecil di browser modern. Matriks keputusan, pola fallback, dan kapan setiap container layak dipakai.
- [ms ke tanggal - tempel timestamp milidetik 13 digit, baca tanggal lokal kembali](https://freetoolonline.com/guides/id/ms-to-date.html) [lastmod=2026-07-06]
  Panduan "ms ke tanggal": tempel timestamp Unix milidetik 13 digit, baca kembali tanggal lokal yang sesuai dan jam 24 jam. 10 digit? Kalikan 1000 dulu.
- [Output Ekstraktor Frame GIF Terlihat Salah? Tiga Penyebab Dan Tes 30 Detik](https://freetoolonline.com/guides/id/gif-frame-extractor-output-looks-wrong-three-causes.html) [lastmod=2026-07-06]
  Ekstraktor frame GIF memberi satu frame, frame kosong, atau warna aneh? Tiga penyebab - GIF statis, mode disposal do-not-dispose, batas memori - masing-masing dengan satu perbaikan.
- [Panduan Pengujian Piksel Mati](https://freetoolonline.com/guides/id/dead-pixel-testing-guide.html) [lastmod=2026-07-06]
  Panduan pengujian piksel mati - piksel mati vs macet vs panas, pemeriksaan warna layar penuh, langkah pemulihan, dan kapan penggantian garansi monitor dibenarkan.
- [Password MD5: cara hash sebuah password dan kapan MD5 salah](https://freetoolonline.com/guides/id/md5-password.html) [lastmod=2026-07-06]
  Panduan password MD5: tempel string password, dapatkan sidik jari 32-hex, dan ketahui kapan MD5 aman untuk checksum dan kapan bcrypt atau argon2id adalah pilihan yang tepat.
- [PDF ke Teks Online: Ekstrak Teks Gratis, Tanpa Instal](https://freetoolonline.com/guides/id/pdf-to-text-online-i-love-pdf.html) [lastmod=2026-07-06]
  Ekstrak teks dari PDF online, gratis dan di browser Anda. Salin atau unduh hasilnya sebagai .txt. Bekerja pada PDF dengan teks tertanam; halaman hasil pindai butuh OCR dulu.
- [PDF vs HEIC untuk Arsip](https://freetoolonline.com/guides/id/pdf-vs-heic-for-document-archival.html) [lastmod=2026-07-06]
  PDF vs HEIC untuk arsip dokumen - mana yang melestarikan tanda terima, ID, dan formulir jangka panjang. Trade-off ukuran, dapat dicari, dan dukungan alat untuk 2026.
- [Pelempar Dadu Online: Panduan Langkah demi Langkah](https://freetoolonline.com/guides/id/dice-roller-step-by-step.html) [lastmod=2026-07-06]
  Panduan langkah demi langkah Dice Roller Online: cara mengatur jumlah dadu, membaca sisi dadu dan total, serta perbedaannya dengan roda pemutar nama.
- [Pembuat Kata Sandi Langkah demi Langkah: Buat Kata Sandi Kuat di Browser Anda](https://freetoolonline.com/guides/id/password-generator-step-by-step.html) [lastmod=2026-07-06]
  Panduan langkah demi langkah untuk Password Generator gratis: atur panjang, pilih set karakter, baca label kekuatan, dan salin kata sandi acak yang kuat - semua di browser.
- [Pembuka kunci password ZIP: kapan alat online dapat menghapus password (dan kapan tidak dapat memecahkannya)](https://freetoolonline.com/guides/id/zip-password-unlocker.html) [lastmod=2026-07-06]
  Apa yang dimaksud pembuka kunci password ZIP online: menghapus password yang Anda sudah tahu dari arsip .zip; password yang tidak diketahui tidak dapat dipecahkan. Ditinjau 2026-05-18.
- [Pembuka Kunci Zip Online: Gunakan saat Anda tahu kata sandinya](https://freetoolonline.com/guides/id/zip-unlocker-online.html) [lastmod=2026-07-06]
  "Pembuka kunci zip online" adalah alat yang tepat hanya saat Anda sudah tahu kata sandinya. Buka penghapus di browser, masukkan kata sandi, unduh salinan yang sudah terbuka.
- [Pemeriksa LCD: Jalankan Pemeriksaan Layar Online Gratis di Browser](https://freetoolonline.com/guides/id/lcd-checker.html) [lastmod=2026-07-06]
  pemeriksa lcd, cek lcd, pemeriksa monitor - satu tugas yang sama: mengalirkan panel melalui warna solid layar penuh untuk mendeteksi piksel mati, kebocoran cahaya latar, dan pergeseran warna. Gratis dan berbasis browser.
- [Pemeriksaan Kamera - Apa Artinya dan Alat Mana yang Digunakan](https://freetoolonline.com/guides/id/camera-check.html) [lastmod=2026-07-06]
  Pemeriksaan kamera adalah sinonim sehari-hari untuk "tes kamera": alur di browser yang meminta umpan webcam dari OS, menampilkan pratinjau, dan mengonfirmasi lensa terbuka.
- [Pemindai Kode QR - Kapan Menggunakannya](https://freetoolonline.com/guides/id/qr-code-scanner-when.html) [lastmod=2026-07-06]
  Pemindai Kode QR - kapan layak dibuka dan apa yang diharapkan ketika cocok.
- [Pemindai Kode QR - Langkah demi Langkah](https://freetoolonline.com/guides/id/qr-code-scanner-step-by-step.html) [lastmod=2026-07-06]
  Pemindai Kode QR - langkah tepat dari membuka alat hingga mendapatkan hasil.
- [Pemindai Kode QR vs Alternatif](https://freetoolonline.com/guides/id/qr-code-scanner-vs-alternatives.html) [lastmod=2026-07-06]
  Pemindai Kode QR dibandingkan dengan aplikasi desktop atau layanan online berbasis unggahan.
- [Pemulihan Kata Sandi ZIP Online - apa yang bekerja (dan apa yang tidak)](https://freetoolonline.com/guides/id/zip-password-recovery-online.html) [lastmod=2026-07-06]
  Panduan pemulihan kata sandi ZIP online: apa yang dapat dan tidak dapat dilakukan unlocker online, plus tiga jalur yang bekerja ketika Anda lupa kata sandi ZIP. Ditinjau terakhir 2026-05-18.
- [Pengacak Daftar Acak vs. Alternatif](https://freetoolonline.com/guides/id/random-list-shuffler-vs-alternatives.html) [lastmod=2026-07-06]
  Membandingkan pengacak daftar acak berbasis browser dengan pengurutan manual dan rumus spreadsheet RAND(), dari segi waktu penyiapan, ukuran instalasi, dan privasi.
- [Pengacak Daftar Acak: Panduan Langkah demi Langkah](https://freetoolonline.com/guides/id/random-list-shuffler-step-by-step.html) [lastmod=2026-07-06]
  Langkah demi langkah: tempel daftar, klik Shuffle, dan dapatkan urutan acak yang adil menggunakan Fisher-Yates dan crypto.getRandomValues di browser.
- [Penghapus Latar AI - Kapan Menggunakannya](https://freetoolonline.com/guides/id/ai-background-remover-when.html) [lastmod=2026-07-06]
  Kapan menggunakan Penghapus Latar AI di browser. Pemrosesan lokal, tanpa unggahan, tanpa akun.
- [Penghapus Latar AI - Panduan Langkah demi Langkah](https://freetoolonline.com/guides/id/ai-background-remover-step-by-step.html) [lastmod=2026-07-06]
  Hapus latar gambar dalam tiga langkah dengan Penghapus Latar AI. Semuanya di browser, tanpa unggahan.
- [Penghapus Latar AI vs Alternatif](https://freetoolonline.com/guides/id/ai-background-remover-vs-alternatives.html) [lastmod=2026-07-06]
  Bandingkan Penghapus Latar AI dengan aplikasi desktop dan layanan online. Privasi, offline, tanpa akun.
- [Penghitung Kata Online: Panduan Langkah demi Langkah](https://freetoolonline.com/guides/id/word-counter-step-by-step.html) [lastmod=2026-07-06]
  Panduan langkah demi langkah untuk Word Counter gratis: arti setiap dari enam angka langsungnya dan cara waktu baca diperkirakan.
- [Pereduksi Ukuran ZIP - kapan kompresi ZIP benar-benar mengecilkan arsip Anda](https://freetoolonline.com/guides/id/zip-size-reducer.html) [lastmod=2026-07-06]
  Panduan berorientasi pembaca untuk menggunakan pereduksi ukuran ZIP: kapan kompresi ZIP benar-benar menghemat ruang, kapan tidak, dan di mana pembuat ZIP browser berada. Direview terakhir: 2026-05-17.
- [Perekam Suara Online Langkah demi Langkah](https://freetoolonline.com/guides/id/voice-recorder-step-by-step.html) [lastmod=2026-07-06]
  Perekam Suara Online Langkah demi Langkah - langkah-langkah tepat menggunakan Online Voice Recorder dari buka sampai unduh hasil.
- [Perekam Suara Online Versus Alternatif](https://freetoolonline.com/guides/id/voice-recorder-vs-alternatives.html) [lastmod=2026-07-06]
  Perekam Suara Online Versus Alternatif - bagaimana Online Voice Recorder dibandingkan dengan aplikasi desktop atau layanan online berbasis unggah.
- [Periksa Webcam Dan Mikrofon Sebelum Wawancara](https://freetoolonline.com/guides/id/how-to-check-webcam-and-microphone-before-an-interview.html) [lastmod=2026-07-06]
  Periksa webcam dan mikrofon sebelum wawancara - tes browser 5 menit untuk kamera, level mikrofon, pencahayaan, dan jeda. Tanpa instal, tanpa unggah.
- [Pisahkan GIF Menjadi Frame Online - ekstrak setiap frame animasi](https://freetoolonline.com/guides/id/split-gif-into-frames.html) [lastmod=2026-07-06]
  Panduan Pisahkan GIF Menjadi Frame: ekstrak setiap frame animasi sebagai gambar terpisah, di browser, tanpa instalasi. Langkah demi langkah, gratis. Terakhir ditinjau 2026-05-14.
- [Pisahkan PDF Online Gratis](https://freetoolonline.com/guides/id/split-pdf-online-free.html) [lastmod=2026-07-06]
  Pisahkan PDF online gratis: ekstrak rentang halaman menjadi satu berkas baru, atau pecah setiap halaman menjadi PDF tersendiri. Tanpa akun, tanpa instalasi. Last reviewed 2026-06-14.
- [PNG ke SVG - kapan vektorisasi gambar raster](https://freetoolonline.com/guides/id/png-to-svg-when-to-vectorize-a-raster-image.html) [lastmod=2026-07-06]
  PNG ke SVG online - menelusuri pixel raster otomatis menjadi jalur vektor. Baca kapan vektorisasi bekerja (logo, ikon, line art) dan kapan tidak (foto).
- [PNG vs SVG - Kapan Memakai Yang Mana](https://freetoolonline.com/guides/id/png-vs-svg-when-to-use.html) [lastmod=2026-07-06]
  PNG vs SVG - raster vs vektor, kapan memilih masing-masing untuk logo, ikon, UI, dan foto, dengan jalur konversi tepat dan kompromi performa.
- [Potong dan Putar Gambar: pilih bingkai, lalu luruskan](https://freetoolonline.com/guides/id/crop-and-rotate-image.html) [lastmod=2026-07-06]
  Potong dan putar gambar di browser - pilih rasio aspek preset atau persegi panjang piksel bebas, lalu luruskan dengan langkah 45 derajat atau pegangan sudut bebas. Gratis, tanpa upload.
- [Preflight PDF online: apa yang sebenarnya diperiksa (dan apa yang tidak)](https://freetoolonline.com/guides/id/pdf-preflight-online-what-it-actually-checks.html) [lastmod=2026-07-06]
  Preflight PDF online memeriksa konformitas arsip PDF/A - tidak memperbaiki masalah, tidak mengesahkan cetak PDF/X, tidak memperbaiki PDF rusak. Panduan 30 detik pemilihan alat sebelum unggah.
- [Roda Pemutar Nama Online: Panduan Langkah demi Langkah](https://freetoolonline.com/guides/id/wheel-spinner-wheel-names-step-by-step.html) [lastmod=2026-07-06]
  Start, edit daftar, dan klik Spin - lihat persis bagaimana roda memilih nama secara adil sebelum digunakan untuk undian atau keputusan.
- [Roda Ya atau Tidak Online: Panduan Langkah demi Langkah](https://freetoolonline.com/guides/id/yes-no-wheel-step-by-step.html) [lastmod=2026-07-06]
  Cara Yes or No Wheel terbuka siap dengan Ya/Tidak, cara mengubahnya jadi roda untuk keputusan apa pun dengan 2+ opsi, dan cara putaran tetap adil.
- [Sebelum panggilan video - alat mana yang dijalankan (layar, kamera, mikrofon)](https://freetoolonline.com/guides/id/before-a-video-call-which-tools-to-run.html) [lastmod=2026-07-06]
  Lima menit sebelum panggilan video: checklist cepat pemeriksaan mana yang dijalankan pada layar, webcam, dan mikrofon Anda, dalam urutan prioritas, dengan alat yang tepat untuk setiap langkah.
- [Stopwatch Online: Panduan Langkah demi Langkah](https://freetoolonline.com/guides/id/stopwatch-step-by-step.html) [lastmod=2026-07-06]
  Start, Lap, Stop, dan Reset - lihat persis apa yang dilakukan setiap kontrol dan cara kerja daftar lap sebelum Anda mulai mengukur waktu.
- [Suara ke Teks Kapan Digunakan](https://freetoolonline.com/guides/id/speech-text-when.html) [lastmod=2026-07-06]
  Suara ke Teks Kapan Digunakan - kapan membuka Suara ke Teks cocok dan apa yang diharapkan.
- [Suara ke Teks Langkah demi Langkah](https://freetoolonline.com/guides/id/speech-text-step-by-step.html) [lastmod=2026-07-06]
  Suara ke Teks Langkah demi Langkah - langkah-langkah tepat untuk menggunakan Suara ke Teks dari awal hingga hasil diunduh.
- [Suara ke Teks vs Alternatif](https://freetoolonline.com/guides/id/speech-text-vs-alternatives.html) [lastmod=2026-07-06]
  Suara ke Teks vs Alternatif - bagaimana Suara ke Teks dibandingkan dengan aplikasi desktop atau layanan unggah.
- [SVG ke PNG - kapan harus dirasterisasi](https://freetoolonline.com/guides/id/svg-to-png-when-to-rasterize-an-svg.html) [lastmod=2026-07-06]
  Kebanyakan SVG harus tetap vektor. Pengecualian: perangkat lunak lama yang tidak memparsing SVG, pratinjau berbagi sosial, klien email. Kapan dan bagaimana melakukan rasterisasi dengan bersih.
- [Tangga Pengeditan PDF - Pilih Alat PDF Yang Tepat](https://freetoolonline.com/guides/id/pdf-editing-ladder.html) [lastmod=2026-07-06]
  Tangga keputusan pengeditan PDF. Bagi, gabung, ekstrak, lindungi, ratakan, konversi - pilih alat yang tepat berdasarkan tujuan dalam 30 detik. 12 alat PDF dipetakan ke alur kerja.
- [Tautan Unduhan Tidak Muncul Setelah Konversi - 5 Perbaikan](https://freetoolonline.com/guides/id/download-link-not-appearing-after-conversion-five-fixes.html) [lastmod=2026-07-06]
  Unggahan selesai tetapi tautan unduhan tidak pernah muncul? Lima penyebab dan perbaikan konkret untuk alat konverter online - dalam urutan kemungkinan.
- [Teks ke Ucapan Kapan Digunakan](https://freetoolonline.com/guides/id/text-speech-when.html) [lastmod=2026-07-06]
  Teks ke Ucapan Kapan Digunakan - kapan membuka Teks ke Ucapan dan apa yang dapat diharapkan saat sesuai dengan kebutuhan.
- [Teks ke Ucapan Langkah demi Langkah](https://freetoolonline.com/guides/id/text-speech-step-by-step.html) [lastmod=2026-07-06]
  Teks ke Ucapan Langkah demi Langkah - langkah-langkah tepat menggunakan Teks ke Ucapan dari awal hingga hasil.
- [Teks ke Ucapan Versus Alternatif](https://freetoolonline.com/guides/id/text-speech-vs-alternatives.html) [lastmod=2026-07-06]
  Teks ke Ucapan Versus Alternatif - perbandingan Teks ke Ucapan dengan aplikasi desktop atau layanan berbasis unggah.
- [Tes Kamera Depan - Periksa Kamera Selfie Anda Secara Online](https://freetoolonline.com/guides/id/front-camera-test.html) [lastmod=2026-07-06]
  Tes kamera depan online: buka lensa selfie, lihat pratinjau langsung, beralih antara depan dan belakang, dan ambil JPEG - semua di browser Anda. Terakhir ditinjau 2026-06-10.
- [Tes Kamera Menampilkan Layar Hitam: 4 Perbaikan Yang Berhasil](https://freetoolonline.com/guides/id/camera-test-shows-black-screen-four-fixes.html) [lastmod=2026-07-06]
  Tes kamera menampilkan persegi panjang hitam? Empat penyebab - izin, OS dimatikan, terkunci kamera virtual, penutup privasi - dan satu perbaikan satu menit untuk masing-masing.
- [Tes kamera vs tes webcam vs kualitas kamera - yang mana?](https://freetoolonline.com/guides/id/camera-test-vs-webcam-test-which-do-you-need.html) [lastmod=2026-07-06]
  Tiga nama, tiga pemeriksaan berbeda. Tes kamera = perangkat keras depan/belakang ponsel. Tes webcam = kamera laptop/desktop + izin. Tes kualitas = fokus, eksposur, warna, derau. Mana yang dijalankan kapan.
- [Tes Keyboard - Rollover vs Anti-Ghosting](https://freetoolonline.com/guides/id/keyboard-tester-online-rollover-vs-anti-ghosting.html) [lastmod=2026-07-06]
  N-key rollover dan anti-ghosting adalah fitur keyboard yang berbeda. Tes keyboard di browser memunculkan keduanya. Apa yang ditekan, apa yang dicari, apa arti hasilnya.
- [Tes layar LCD - panduan online](https://freetoolonline.com/guides/id/lcd-screen-test.html) [lastmod=2026-07-06]
  Panduan tes layar LCD: jalankan pemeriksaan piksel mati dan keseragaman warna gratis di browser. Langkah demi langkah, tanpa instal. Direview terakhir: 2026-05-20.
- [Tes layar online vs app: mana yang lebih akurat?](https://freetoolonline.com/guides/id/screen-test-online-vs-app-which-is-more-accurate.html) [lastmod=2026-07-06]
  Tes layar berbasis peramban menangkap cacat panel (pixel mati, keseragaman, kebocoran) dalam dua menit. App native mencapai frekuensi refresh, HDR, dan pemeriksaan ICC. Mana yang dimulai duluan.
- [Tes Layar untuk Laptop - Checklist 5 Menit](https://freetoolonline.com/guides/id/screen-test-for-laptop-5-minute-checklist.html) [lastmod=2026-07-06]
  Lima pemeriksaan layar cepat untuk laptop yang baru dibeli atau hendak dikembalikan - pixel mati, kecerahan baterai vs AC, pergeseran IPS, silau, penskalaan. Dua menit per pemeriksaan.
- [Tes layar vs tes kamera - mana yang sebenarnya Anda butuhkan?](https://freetoolonline.com/guides/id/screen-test-vs-camera-test-pick-the-right-tool.html) [lastmod=2026-07-06]
  Pixel macet atau kebocoran cahaya latar: tes layar. Webcam tidak bisa start atau gambar terbalik: tes kamera. Pilih alat tes perangkat yang tepat di freetoolonline.com.
- [Tes layar vs Tes LCD - hal yang sama?](https://freetoolonline.com/guides/id/screen-display-test-synonyms.html) [lastmod=2026-07-06]
  Tes layar, tes display, tes monitor - semua berarti pemeriksaan yang sama. Pilih alat yang tepat: tes LCD untuk monitor, tes kamera untuk webcam.
- [Tes LCD - panduan tes layar LCD](https://freetoolonline.com/guides/id/lcd-test-online.html) [lastmod=2026-07-06]
  Panduan tes LCD: cara tes layar LCD online, gratis di browser. Langkah demi langkah, tanpa instal. Direview terakhir: 2026-05-13.
- [Tes LCD untuk Layar Laptop - Pemeriksaan Piksel Mati dan Warna](https://freetoolonline.com/guides/id/lcd-test-laptop.html) [lastmod=2026-07-06]
  Tes LCD laptop untuk mencari piksel mati, piksel macet, dan rembesan lampu latar - putar merah, hijau, biru, hitam, dan putih layar penuh di peramban Anda.
- [Tes LCD vs tes display vs tes monitor - yang mana?](https://freetoolonline.com/guides/id/lcd-test-vs-display-test-which-do-you-need.html) [lastmod=2026-07-06]
  Tiga nama, tiga pemeriksaan berbeda. Tes LCD = pixel panel dan keseragaman. Tes display = panel + jalur sinyal. Tes monitor = panel + sinyal + port + skala. Mana yang dijalankan kapan, dan alat yang tepat untuk memulai.
- [Tes LCD: Cek Layar Dead Pixel Online - Free Tool Online](https://freetoolonline.com/guides/id/tes-lcd.html) [lastmod=2026-07-06]
  Tes LCD online: cek dead pixel, stuck pixel, dan backlight bleed dengan enam tampilan layar penuh (merah, hijau, biru, hitam, putih, kuning) di browser. Last reviewed: 2026-05-18.
- [Tes LCD: Pilih alat tes layar yang tepat](https://freetoolonline.com/guides/id/test-lcd.html) [lastmod=2026-07-06]
  Tes LCD, pengujian LCD, atau alat penguji LCD semuanya memetakan ke satu pekerjaan: periksa layar Anda untuk piksel mati, warna, dan cahaya latar di browser. Pilih alat yang tepat di sini.
- [Tes LED vs Tes LCD: Mana yang Berlaku untuk Layar Anda?](https://freetoolonline.com/guides/id/led-test-vs-lcd-test-which-applies-to-your-screen.html) [lastmod=2026-07-06]
  LED adalah cahaya latar; LCD adalah panel. Pada hampir setiap layar modern, kedua nama berarti hardware yang sama - satu siklus warna layar penuh menjawab kedua pertanyaan.
- [Tes LED: cara menguji layar laptop atau ponsel](https://freetoolonline.com/guides/id/led-test.html) [lastmod=2026-07-06]
  Uji layar LED Anda untuk piksel macet, piksel mati, dan rembesan cahaya. Cat enam warna layar penuh di browser. Tanpa instal, gratis.
- [Tes Mikrofon Online - Apa Yang Dicek](https://freetoolonline.com/guides/id/microphone-test-online-what-it-actually-checks.html) [lastmod=2026-07-06]
  Tes mikrofon di browser memastikan mikrofon dipilih, menangkap suara, dan cocok dengan volume yang diharapkan. Apa yang tidak bisa diperiksa dan ke mana selanjutnya.
- [Tes Mikrofon Tanpa Suara: 4 Perbaikan Yang Bekerja](https://freetoolonline.com/guides/id/microphone-test-no-sound-four-fixes.html) [lastmod=2026-07-06]
  Tes mikrofon menunjukkan tanpa suara atau bentuk gelombang datar? Empat penyebab - izin, OS dibisukan, aplikasi memegang perangkat, mute hardware - dan satu perbaikan satu menit untuk masing-masing.
- [Tes OLED vs Tes LCD: Apa yang Berubah pada Panel OLED](https://freetoolonline.com/guides/id/oled-test-vs-lcd-test-what-changes-on-oled.html) [lastmod=2026-07-06]
  Panel OLED memerlukan tes yang berbeda dari LCD: tidak ada kebocoran lampu latar yang dicari, tetapi burn-in dan retensi gambar penting. Panduan ini menjelaskan apa yang berubah saat layar Anda adalah OLED.
- [Text vs Line vs Word vs Git Diff](https://freetoolonline.com/guides/id/text-diff-vs-line-diff-vs-word-diff-vs-git-diff.html) [lastmod=2026-07-06]
  Empat jenis diff menjawab pertanyaan yang berbeda. Text diff untuk pasangan apapun, line diff untuk kode, word diff untuk prosa, git diff untuk perubahan yang dilacak. Masing-masing dijelaskan.
- [Timer Hitung Mundur Online: Panduan Langkah demi Langkah](https://freetoolonline.com/guides/id/countdown-timer-step-by-step.html) [lastmod=2026-07-06]
  Atur menit dan detik, mulai hitung mundur, dan lihat persis apa yang terjadi - dan tidak terjadi - saat mencapai nol.
- [Timestamp Unix Dijelaskan](https://freetoolonline.com/guides/id/unix-timestamps-explained.html) [lastmod=2026-07-06]
  Timestamp Unix dijelaskan - detik vs milidetik, ISO-8601, RFC 2822, UTC vs waktu lokal dan jebakan umum saat mengonversi antar format.
- [Tombol Tidak Terdeteksi di Tes Keyboard: 4 Perbaikan](https://freetoolonline.com/guides/id/keyboard-test-keys-not-detected-four-fixes.html) [lastmod=2026-07-06]
  Tes keyboard tidak menyorot beberapa tombol? Empat penyebab - fokus, layout OS, filter sticky keys, saklar hardware - dan perbaikan satu menit untuk masing-masing.
- [Uji piksel mati sebelum mengembalikan monitor](https://freetoolonline.com/guides/id/how-to-test-for-dead-pixels-before-returning-a-monitor.html) [lastmod=2026-07-06]
  Cara menguji piksel mati sebelum mengembalikan monitor - pemeriksaan warna layar penuh, piksel macet vs mati, bukti garansi, dan apa yang diterima produsen.
- [Unminify JS: Memulihkan Keterbacaan JavaScript Terminifikasi (Alat Browser Gratis)](https://freetoolonline.com/guides/id/unminify-js.html) [lastmod=2026-07-06]
  Unminify JavaScript yang terminifikasi online gratis. Tempel bundle, dapatkan kode terindentasi dengan baris baru dikembalikan - tanpa install, di sisi browser. Terakhir ditinjau 2026-05-20.
- [Url Decoder Kapan Digunakan](https://freetoolonline.com/guides/id/url-decoder-when.html) [lastmod=2026-07-06]
  Url Decoder Kapan Digunakan - kapan membuka URL Decoder dan apa yang diharapkan.
- [Url Decoder Langkah Demi Langkah](https://freetoolonline.com/guides/id/url-decoder-step-by-step.html) [lastmod=2026-07-06]
  Url Decoder Langkah Demi Langkah - langkah-langkah tepat untuk menjalankan URL Decoder.
- [Url Decoder Vs Alternatif](https://freetoolonline.com/guides/id/url-decoder-vs-alternatives.html) [lastmod=2026-07-06]
  Url Decoder Vs Alternatif - bagaimana URL Decoder dibandingkan dengan aplikasi desktop atau layanan unggahan.
- [Urutkan Baris Teks Langkah demi Langkah: Susun Daftar di Browser Anda](https://freetoolonline.com/guides/id/sort-text-lines-step-by-step.html) [lastmod=2026-07-06]
  Panduan langkah demi langkah untuk alat gratis Sort Text Lines: cara mengurutkan daftar A-Z atau Z-A, bagaimana urutan ditentukan, dan mengapa angka diurutkan sebagai teks.
- [Waktu dalam milidetik: satuan, konversi, dan nilai epoch](https://freetoolonline.com/guides/id/time-in-ms.html) [lastmod=2026-07-06]
  Waktu dalam milidetik adalah angka di mana 1 detik sama dengan 1000 ms. Pelajari makna durasi dan epoch, tabel konversi, dan di mana ms muncul dalam kode.
- [Waktu sekarang dalam milidetik: baca nilai epoch langsung dan gunakan dengan benar](https://freetoolonline.com/guides/id/current-time-in-milliseconds.html) [lastmod=2026-07-06]
  Baca waktu sekarang dalam milidetik sejak epoch Unix di browser, salin untuk baris log atau panggilan API, dan hindari kebingungan 10-digit-vs-13-digit detik-vs-milidetik.
- [Webcam Mirror vs Flip Dijelaskan: Mengapa Pratinjau Kamera Anda Membalik Teks](https://freetoolonline.com/guides/id/camera-mirror-vs-flip-explained.html) [lastmod=2026-07-06]
  Mengapa pratinjau webcam Anda membalik teks dan video yang disimpan biasanya tidak. Prosedur bukti 30 detik plus langkah-langkah persis menonaktifkan mirror untuk OBS, Zoom, Google Meet, dan Microsoft Teams.
- [Zip Folder Online Gratis - panduan](https://freetoolonline.com/guides/id/zip-folder-online-free.html) [lastmod=2026-07-06]
  Zip folder online gratis di browser - seret, pilih kata sandi opsional, unduh .zip. Langkah demi langkah, tanpa instal. Direview terakhir: 2026-05-19.
- [Zip online vs 7z vs Rar - mana yang dipilih](https://freetoolonline.com/guides/id/online-zip-vs-7z-vs-rar-which-to-pick.html) [lastmod=2026-07-06]
  Pilih format arsip yang tepat online: zip untuk kompatibilitas, 7z untuk kompresi terbaik, rar saat Anda harus membuka satu. Matriks keputusan dan routing alat browser.
- [Zip vs Zipx vs Rar vs 7z, dijelaskan](https://freetoolonline.com/guides/id/zip-vs-zipx-vs-rar-vs-7z-archive-formats-explained.html) [lastmod=2026-07-06]
  Empat format arsip dibandingkan: yang mana Windows buka secara default, yang mengompres paling kecil, dan yang sebanding dengan aplikasi terpisah. Panduan dalam bahasa sederhana.

### Portuguese guides (249)

- [Alternativas ao MD5: bcrypt, Argon2id, SHA-256](https://freetoolonline.com/guides/pt/md5-alternatives-bcrypt-argon2id-sha256-when-each-fits.html) [lastmod=2026-07-06]
  MD5 e errado para senhas e integridade adversaria. Escolha bcrypt ou Argon2id para senhas, HMAC-SHA-256 para MAC, SHA-256 para integridade.
- [Antes de uma chamada de vídeo - quais ferramentas executar (tela, câmera, microfone)](https://freetoolonline.com/guides/pt/before-a-video-call-which-tools-to-run.html) [lastmod=2026-07-06]
  Cinco minutos antes de uma chamada de vídeo: um checklist rápido de quais verificações executar na tela, webcam e microfone, em ordem de prioridade, com a ferramenta certa para cada passo.
- [Arquivo para ZIP - Guia do Compressor de Arquivos Online](https://freetoolonline.com/guides/pt/file-to-zip.html) [lastmod=2026-07-06]
  Como transformar um arquivo em um arquivo ZIP online: quando o ZIP realmente reduz o arquivo, quando nao reduz, e onde fica o criador.
- [Arquivo ZIP Online: Como criar um arquivo ZIP online (gratuito, no navegador)](https://freetoolonline.com/guides/pt/online-zip-file.html) [lastmod=2026-07-06]
  Crie um arquivo ZIP online - cole arquivos ou uma pasta no criador no navegador, receba um .zip baixavel, sem instalacao, sem cadastro. Ultima revisao 2026-05-18.
- [As ferramentas online sao realmente gratuitas? Privacidade, monetizacao e o modelo no navegador](https://freetoolonline.com/guides/pt/tool-free.html) [lastmod=2026-07-06]
  As ferramentas online sao realmente gratuitas? Como as ferramentas no navegador continuam gratuitas sem assinaturas, como os anuncios pagam a conta e o que fica no seu dispositivo. Ultima revisao 2026-06-04.
- [Base64 - Quando Usar e Quando Nao Usar](https://freetoolonline.com/guides/pt/base64-when-to-use-and-when-not-to.html) [lastmod=2026-07-06]
  Base64 torna dados binarios seguros para texto a um custo de tamanho de 33 por cento. Certo para data URLs inline e icones pequenos; errado para ativos acima de alguns kilobytes. Regras de decisao.
- [Calculadora de Porcentagem Passo a Passo](https://freetoolonline.com/guides/pt/percentage-calculator-step-by-step.html) [lastmod=2026-07-06]
  Calculadora de Porcentagem Passo a Passo - os passos exatos para usar a Percentage Calculator do inicio ao resultado.
- [Calculadora de Porcentagem Versus Alternativas](https://freetoolonline.com/guides/pt/percentage-calculator-vs-alternatives.html) [lastmod=2026-07-06]
  Calculadora de Porcentagem vs alternativas - como a Percentage Calculator se compara a uma planilha ou a um servico online baseado em upload.
- [Checklist de Teste de Dispositivos para Trabalho Remoto (2026)](https://freetoolonline.com/guides/pt/device-test-checklist-for-remote-work.html) [lastmod=2026-07-06]
  Execute o checklist de 8 pontos de teste de dispositivos antes da sua próxima reunião remota. Câmera, mic, LCD, teclado - caminho rápido de 60 segundos ou completo de 5 minutos, sem instalação.
- [Como achatar um PDF - e quando fazer isso](https://freetoolonline.com/guides/pt/how-to-flatten-a-pdf-and-when-to-do-it.html) [lastmod=2026-07-06]
  Achatar um PDF assa campos de formulario, anotacoes e assinaturas em graficos de pagina estaticos. Leia o que achatar faz, quando voce precisa, e quando nao.
- [Como agrupar varios arquivos em um ZIP](https://freetoolonline.com/guides/pt/how-to-zip-multiple-files-into-one.html) [lastmod=2026-07-06]
  Agrupe varios arquivos em um unico arquivo ZIP no navegador: selecione, nomeie a saida, escolha um nivel de compressao e baixe. Sem upload ou instalacao.
- [Como assinar um PDF depois de remover sua senha](https://freetoolonline.com/guides/pt/how-to-sign-pdf-after-removing-a-password.html) [lastmod=2026-07-06]
  Como assinar um PDF depois de remover sua senha de proprietario - fluxo legitimo para contratos e formularios, com notas legais e de privacidade.
- [Como Compactar um Arquivo Online (Passo a Passo)](https://freetoolonline.com/guides/pt/how-to-compress-a-file-online.html) [lastmod=2026-07-06]
  Identifique o tipo de arquivo primeiro, depois escolha a ferramenta certa: imagem para Compress Image, HEIC para HEIC to JPG, PDF para Flatten PDF, vídeo para Video Converter, documento para ZIP.
- [Como compactar um arquivo ZIP para 100 KB - gratis, no navegador](https://freetoolonline.com/guides/pt/compress-zip-file-to-100kb.html) [lastmod=2026-07-06]
  Tentando colocar um ZIP abaixo de 100 KB? Leia quais entradas atingem esse alvo sozinhas, quando re-compactar ajuda e quando o arquivo deve ser dividido. Gratis, no navegador.
- [Como compactar um arquivo ZIP para 2 MB - gratis, no navegador](https://freetoolonline.com/guides/pt/compress-zip-file-to-2mb.html) [lastmod=2026-07-06]
  Precisa de um ZIP abaixo de 2 MB para um limite de anexo de email? Leia quais entradas compactam para 2 MB, quando re-compactar ajuda e quando dividir. Gratis, no navegador.
- [Como Compactar um JPG para Limites de Tamanho de Anexo de Email](https://freetoolonline.com/guides/pt/how-to-compress-a-jpg-for-email-attachment-limits.html) [lastmod=2026-07-06]
  Escolha a qualidade JPG certa para enquadrar fotos abaixo dos limites de email de 25 MB do Gmail / 20 MB do Outlook / 10 MB corporativo sem a foto virar massa.
- [Como compactar uma pasta](https://freetoolonline.com/guides/pt/how-to-compress-a-folder.html) [lastmod=2026-07-06]
  Compacte uma pasta inteira em um unico ZIP no seu navegador. Tres passos do arrastar-soltar ate um download menor de arquivo unico. Gratuito, sem instalacao.
- [Como comprimir um arquivo zip - guia em tres passos](https://freetoolonline.com/guides/pt/how-to-compress-a-zip-file.html) [lastmod=2026-07-06]
  Como comprimir um arquivo zip online em tres passos: solte a pasta, escolha um alvo de compressao, baixe. Gratis, baseado em navegador, sem instalacao. Ultima revisao 2026-05-19.
- [Como comprimir um ZIP para um tamanho especifico (2 / 25 MB, 100 KB)](https://freetoolonline.com/guides/pt/how-to-compress-a-zip-file-to-a-specific-size.html) [lastmod=2026-07-06]
  Atingir um tamanho exato de ZIP (2 MB, 25 MB cap de email, 100 KB cap de formulario) nao e deterministico. Tres coisas realmente decidem. A ordem certa de ferramentas, por cap.
- [Como comprimir um Zip para um tamanho menor](https://freetoolonline.com/guides/pt/how-to-compress-zip-file-to-smaller-size.html) [lastmod=2026-07-06]
  Comprima um zip existente novamente, do jeito certo: quando re-zipar ajuda, quando nao faz nada, e a ferramenta no navegador para usar sem upload.
- [Como Comprimir uma Imagem para 50KB Online (Gratis)](https://freetoolonline.com/guides/pt/compress-image-online-to-50kb.html) [lastmod=2026-07-06]
  Deixe um JPG, PNG ou WebP abaixo de 50 KB online: converta para JPG, baixe o controle de qualidade e confira a previa lado a lado antes de baixar. Gratis, sem conta.
- [Como converter HEIC para JPG passo a passo](https://freetoolonline.com/guides/pt/how-to-convert-heic-to-jpg-step-by-step.html) [lastmod=2026-07-06]
  Converta HEIC para JPG passo a passo. Decodificacao server-side via libheif, baixe o JPG por HTTPS, pronto para enviar por email. Fluxo de foto iPhone em segundos.
- [Como Converter uma Foto do iPhone para JPG](https://freetoolonline.com/guides/pt/how-to-convert-iphone-photo-to-jpg.html) [lastmod=2026-07-06]
  Converta uma foto do iPhone de HEIC para JPG sem iCloud, sem aplicativo instalado e sem desktop. Passo a passo no navegador que lida com fotos unicas e lotes igualmente.
- [Como converter unidades online - grátis e sem cadastro](https://freetoolonline.com/guides/pt/how-to-convert-units-online.html) [lastmod=2026-07-06]
  Converta unidades online de graça: comprimento, peso, temperatura, área e volume. Tudo no navegador, sem conta nem instalação.
- [Como criar uma lista de tarefas online - gratis e sem cadastro](https://freetoolonline.com/guides/pt/how-to-make-a-to-do-list-online.html) [lastmod=2026-07-06]
  Crie uma lista de tarefas online gratuita. Adicione tarefas, marque as concluidas e exclua-as; sua lista fica salva no navegador, sem instalar app e sem conta.
- [Como Dividir um GIF em Quadros](https://freetoolonline.com/guides/pt/how-to-split-a-gif-into-frames-for-editing.html) [lastmod=2026-07-06]
  Extraia quadros individuais de um GIF animado para edicao, arquivamento ou posts em redes sociais. Passo a passo no navegador que mantem os dados de tempo originais por quadro.
- [Como editar codigo online - gratis, no seu navegador](https://freetoolonline.com/guides/pt/how-to-edit-code-online.html) [lastmod=2026-07-06]
  Edite codigo online em um editor gratuito no navegador - destaque de sintaxe para 18 linguagens, temas claro e escuro, abrir e salvar arquivos. Sem upload.
- [Como escolher um nivel de compressao - qualidade vs tamanho do arquivo, com exemplos](https://freetoolonline.com/guides/pt/how-to-choose-a-compression-level.html) [lastmod=2026-07-06]
  Escolha o nivel certo de compressao em /compress-image.html - 50, 70, 85 ou 100. Faixas concretas de tamanho de arquivo, quando cada nivel e bom o suficiente e quando continuar.
- [Como escolher uma cor online - HEX, RGB e HSL](https://freetoolonline.com/guides/pt/how-to-pick-a-color-online.html) [lastmod=2026-07-06]
  Escolha uma cor online e veja seus valores HEX, RGB e HSL, paletas correspondentes, verificacao de contraste, e salve as favoritas - tudo no navegador, sem conta.
- [Como Esconder uma Mensagem em uma Imagem (Esteganografia)](https://freetoolonline.com/guides/pt/how-to-hide-a-message-in-an-image.html) [lastmod=2026-07-06]
  Como esconder uma mensagem de texto secreta dentro de uma imagem PNG e le-la de volta, opcionalmente com senha - gratis, no seu navegador, nada enviado.
- [Como executar um chat de IA privado no navegador - gratis](https://freetoolonline.com/guides/pt/how-to-run-a-private-ai-chat-in-your-browser.html) [lastmod=2026-07-06]
  Execute um chatbot de IA no navegador; o modelo carrega no dispositivo, entao as conversas ficam privadas, sem upload e sem conta. Requer WebGPU.
- [Como extrair um arquivo online - ZIP, RAR, 7z (qual rota neste site faz o que)](https://freetoolonline.com/guides/pt/how-to-extract-a-file-online-zip-rar-7z.html) [lastmod=2026-07-06]
  Se voce pesquisou "extrair arquivo online" ou "file zipper", esta e a regra de roteamento. Arquivos ZIP extraem online via /unzip-file.html (server-upload, senha opcional). RAR / 7z extraem localmente com a ferramenta do seu SO - este site nao tem extrator server-side de .rar ou .7z, e o guia diz isso honestamente.
- [Como gravar a sua tela online - tela, camera ou microfone](https://freetoolonline.com/guides/pt/how-to-record-your-screen-online.html) [lastmod=2026-07-06]
  Grave a sua tela, camera ou microfone no navegador, desfoque rostos no seu dispositivo e baixe como WebM ou MP4. Sem upload, sem instalar, sem conta.
- [Como Ler e Comparar Hashes MD5 Corretamente: Maiusculas, Espacos, Formato Hex](https://freetoolonline.com/guides/pt/read-and-compare-md5-hashes-correctly.html) [lastmod=2026-07-06]
  Dois hashes MD5 sao iguais quando seus 32 caracteres hex coincidem depois de converter para minusculas e remover espacos. Veja as 4 diferencas cosmeticas e as reais.
- [Como Preencher um Formulario PDF Online - Sem Upload](https://freetoolonline.com/guides/pt/pdf-filler-form-editor-step-by-step.html) [lastmod=2026-07-06]
  Guia passo a passo para preencher os campos de um formulario PDF existente online, direto no navegador, sem upload e sem conta.
- [Como recortar e girar uma imagem](https://freetoolonline.com/guides/pt/how-to-crop-and-rotate-an-image.html) [lastmod=2026-07-06]
  Recorte e gire uma imagem no navegador sem perder o original. Recorte preciso por pixel, rotacao sem perdas de 90 graus, e onde o flag de rotacao EXIF importa.
- [Como redimensionar uma imagem online gratuitamente](https://freetoolonline.com/guides/pt/resize-image-online-free.html) [lastmod=2026-07-06]
  Redimensione uma imagem online de graça - defina pixels exatos ou uma porcentagem, trave a proporção e exporte JPG, PNG ou WebP. Gratuito, sem cadastro.
- [Como Reduzir o Tamanho de Arquivo Zip Online (Gratis)](https://freetoolonline.com/guides/pt/how-to-reduce-zip-file-size-online.html) [lastmod=2026-07-06]
  Reduza o tamanho de arquivo zip online e gratis. Por que seu zip e grande, o que comprime bem, e tres taticas para caber em qualquer limite de e-mail ou upload de 25 MB.
- [Como Reduzir o Tamanho de um Arquivo ZIP - o que comprime, o que nao](https://freetoolonline.com/guides/pt/how-to-reduce-zip-file-size.html) [lastmod=2026-07-06]
  Por que a maioria dos ZIPs nao encolhe e como realmente reduzir um - o que comprime (texto, CSV, codigo-fonte), o que nao (JPG, MP4, MP3), e o fluxo que funciona.
- [Como Reduzir o Tamanho do Arquivo Zip Online - Guia Gratuito](https://freetoolonline.com/guides/pt/mengecilkan-ukuran-zip.html) [lastmod=2026-07-06]
  Aprenda como reduzir o tamanho do arquivo zip online: selecione os arquivos, comprima e baixe um arquivo menor no navegador. Passo a passo, sem instalacao. Ultima revisao 2026-06-19.
- [Como saber se um JPG foi comprimido demais](https://freetoolonline.com/guides/pt/how-to-tell-if-a-jpg-was-compressed-too-much.html) [lastmod=2026-07-06]
  Leia o valor de qualidade com que um JPG existente foi salvo, reconheca artefatos visiveis de super-compressao e decida se re-codificar vai ajudar ou prejudicar.
- [Como testar um teclado online passo a passo](https://freetoolonline.com/guides/pt/how-to-test-a-keyboard-online-step-by-step.html) [lastmod=2026-07-06]
  Um teste de teclado no navegador em 60 segundos: abra a pagina, pressione cada tecla, veja cada uma destacar. Identifique teclas que nao funcionam, teclas presas e falhas de tecla modificadora sem instalar nada.
- [Como testar uma tela sensivel ao toque por pontos defeituosos](https://freetoolonline.com/guides/pt/how-to-test-a-touchscreen-for-bad-spots.html) [lastmod=2026-07-06]
  Uma verificacao no navegador em 60 segundos para areas que nao respondem em telas de toque de telefone, tablet ou laptop. O que cada padrao de falha significa e quando acionar a garantia.
- [Como Tornar um Arquivo Zip Menor](https://freetoolonline.com/guides/pt/how-to-make-a-zip-file-smaller.html) [lastmod=2026-07-06]
  Torne um zip menor sem perder arquivos: escolha o nivel de compressao certo, remova primeiro a midia ja comprimida, divida se precisar passar por um limite de tamanho de e-mail.
- [Como transformar texto em imagem (PNG) online gratis](https://freetoolonline.com/guides/pt/how-to-turn-text-into-an-image-online.html) [lastmod=2026-07-06]
  Estilize texto no seu navegador - escolha uma fonte, tamanho, peso, cores, espacamento e uma sombra, e baixe como imagem PNG. Gratis, sem upload, sem conta.
- [Como verificar a qualidade da camera do seu telefone](https://freetoolonline.com/guides/pt/how-to-check-camera-quality-on-your-phone.html) [lastmod=2026-07-06]
  Um teste de navegador de dois minutos para qualidade da camera de telefone: resolucao, foco, pouca luz, poeira na lente. O que e bom, e hardware vs software.
- [Como verificar a tela de um laptop em busca de pixels mortos e vazamento de luz](https://freetoolonline.com/guides/pt/cek-layar-laptop.html) [lastmod=2026-07-06]
  Verifique a tela de um laptop no navegador: preencha com vermelho, verde, azul, preto, branco e amarelo solidos para achar pixels mortos ou travados e vazamento de luz. Gratis, sem instalar.
- [Como visualizar dados online - crie um grafico dos seus numeros](https://freetoolonline.com/guides/pt/how-to-visualize-data-online.html) [lastmod=2026-07-06]
  Transforme linhas de dados em um grafico no navegador. Cole CSV, JSON ou Rotulo, Valor, escolha um tipo de grafico - sem upload e sem conta.
- [Como Zipar uma Pasta Online, Passo a Passo](https://freetoolonline.com/guides/pt/how-to-zip-folder-online-step-by-step.html) [lastmod=2026-07-06]
  Zipe uma pasta online em cinco passos: escolha a pasta, mantenha a estrutura, defina a compressao, nomeie a saida, baixe. Apenas no navegador, com as armadilhas a evitar.
- [Compactador de Arquivo Online: ZIP uma Pasta vs Comprimir uma Imagem](https://freetoolonline.com/guides/pt/file-compressor-online-when-to-zip-vs-when-to-compress-image.html) [lastmod=2026-07-06]
  Guia de roteamento para a duvida do compactador de arquivo: quando fazer ZIP de uma pasta para transporte vs quando comprimir uma unica imagem para reduzir bytes. Regra de 30 segundos, cinco passos.
- [Compactador de Arquivos vs ZIP](https://freetoolonline.com/guides/pt/file-compressor-vs-zip-what-to-pick.html) [lastmod=2026-07-06]
  "Compactador de arquivos" e generico demais. Escolha por tipo de arquivo: ZIP uma pasta, comprima fotos, converta HEIC, agrupe PDFs ou use um link de transferencia para video.
- [Compactador de Arquivos: Escolha pelo Tipo de Arquivo](https://freetoolonline.com/guides/pt/file-compressor.html) [lastmod=2026-07-06]
  Compactador de arquivos gratuito que escolhe a ferramenta certa do navegador pelo que voce tem: ZIP uma pasta, comprima fotos, converta HEIC, agrupe PDFs ou use um link de transferencia.
- [Compactador de Tamanho de Arquivo Zip - Guia Online Gratis](https://freetoolonline.com/guides/pt/zip-file-size-compressor.html) [lastmod=2026-07-06]
  Use um compactador de tamanho de arquivo zip online para agrupar uma pasta de arquivos em um unico .zip e reduzir o tamanho total antes de enviar. Gratis, sem instalar. Ultima revisao 2026-05-19.
- [Compactar Pasta Online - Crie um ZIP a Partir de uma Pasta Inteira](https://freetoolonline.com/guides/pt/compress-folder.html) [lastmod=2026-07-06]
  Compactar pasta inteira em um ZIP online, gratis e sem instalar nada. Senha opcional (Standard, AES-128, AES-256). Passo a passo, revisado em 2026-05-18.
- [Compactar Pasta Online - grátis, baseado em navegador, sem instalação](https://freetoolonline.com/guides/pt/compress-folder-online.html) [lastmod=2026-07-06]
  Como compactar uma pasta online: arraste a pasta, o serviço empacota um .zip, baixe. Baseado em navegador, sem instalação, senha opcional. Revisado em 2026-05-24.
- [Compactar uma Pasta para Email](https://freetoolonline.com/guides/pt/how-to-compress-a-folder-for-email.html) [lastmod=2026-07-06]
  Compacte uma pasta para email em menos de um minuto. Passo a passo para Windows e macOS, ressalvas de tamanho de email em 2026 e quando adicionar uma senha antes de compartilhar.
- [Compressao ZIP - guia de compressao zip](https://freetoolonline.com/guides/pt/zip-compress.html) [lastmod=2026-07-06]
  Guia de compressao ZIP: quando ZIP encolhe arquivos, quando nao, e como agrupar uma pasta em um arquivo online. Gratis, sem instalar. Ultima revisao: 2026-05-18.
- [Compressor de Arquivo Zip Online - Agrupe e Encolha Pastas em um ZIP](https://freetoolonline.com/guides/pt/zip-file-compressor-online.html) [lastmod=2026-07-06]
  Compressor de arquivo zip online: agrupe arquivos ou uma pasta inteira em um .zip, defina uma senha opcional e baixe. Gratuito, no navegador, sem instalacao.
- [Compressor de arquivo ZIP online - guia](https://freetoolonline.com/guides/pt/online-zip-file-compressor.html) [lastmod=2026-07-06]
  Guia do compressor de arquivo ZIP online: agrupe arquivos ou uma pasta inteira em um .zip, defina uma senha opcional e baixe. Gratis, no navegador, sem instalar.
- [Compressor ZIP Online - quando encolhe uma pasta e quando nao](https://freetoolonline.com/guides/pt/zip-compressor-online.html) [lastmod=2026-07-06]
  Um compressor zip online agrupa uma pasta de arquivos em um .zip. O corte de tamanho depende do tipo de entrada - texto encolhe, JPG/MP4 nao. Link da ferramenta dentro.
- [Compressor ZIP: Comprimir Arquivos em um Arquivo ZIP Menor](https://freetoolonline.com/guides/pt/zip-compressor.html) [lastmod=2026-07-06]
  Um guia rapido de tarefa de leitor sobre o uso de um compressor zip: quando escolher compressao zip para uma pasta de arquivos, o que o arquivo .zip resultante preserva e nao preserva, e onde fica a ferramenta no navegador.
- [Comprimir Arquivo Zip - Criar Novo ou Re-Comprimir](https://freetoolonline.com/guides/pt/compress-zip-file.html) [lastmod=2026-07-06]
  Comprimir arquivo zip: como criar um ZIP novo a partir de um arquivo ou pasta, e quando re-comprimir um .zip ja existente faz sentido. Online, gratis.
- [Comprimir Arquivo Zip Online - Guia Completo no Navegador](https://freetoolonline.com/guides/pt/kompres-file-zip.html) [lastmod=2026-07-06]
  Guia de compressao de arquivos zip online no navegador. Agrupe arquivos e pastas em um arquivo .zip, adicione senha opcional, baixe em segundos. Gratuito, sem instalacao.
- [Comprimir JPEG Sem Perder Qualidade: Qualidade vs Tamanho](https://freetoolonline.com/guides/pt/compress-jpeg-without-losing-quality-quality-vs-size.html) [lastmod=2026-07-06]
  Escolha a configuração certa de qualidade JPEG: quando 75 parece idêntico ao original, quando 95 desperdiça bytes, e quando a compressão automática por IA supera ambos.
- [Comprimir Pasta Zipada Online - Guia Pratico](https://freetoolonline.com/guides/pt/compress-folder-to-zip.html) [lastmod=2026-07-06]
  Guia para comprimir uma pasta zipada online no navegador. Explica quando re-zipar funciona, quando nao, e o caminho para o resultado mais menor. Last reviewed 2026-05-21.
- [Comprimir PDF Online Gratis - Reduza o Tamanho do PDF](https://freetoolonline.com/guides/pt/compress-pdf-online-free.html) [lastmod=2026-07-06]
  Reduza um PDF de graca online: achate arquivos cheios de formularios ou extraia-comprima-reconstrua PDFs digitalizados com nossas ferramentas. Sem conta. Revisado em 2026-06-11.
- [Comprimir Tamanho ZIP: Quanto Menor o Arquivo Realmente Fica?](https://freetoolonline.com/guides/pt/compress-zip-size.html) [lastmod=2026-07-06]
  Quanto a compressão ZIP pode reduzir o tamanho de uma pasta? Heurística de compressibilidade mais uma rota no navegador para o criador. Grátis, sem instalação. Última revisão 2026-05-15.
- [Comprimir um arquivo ZIP para um tamanho menor: quando o arquivo realmente encolhe](https://freetoolonline.com/guides/pt/compress-zip-file-to-smaller-size.html) [lastmod=2026-07-06]
  Guia pratico para tornar um arquivo ZIP menor: quais entradas realmente encolhem, quais nao, e a ferramenta no navegador que constroi o arquivo. Ultima revisao: 2026-05-17.
- [Comprimir vs Converter uma Imagem](https://freetoolonline.com/guides/pt/when-to-compress-vs-convert-an-image.html) [lastmod=2026-07-06]
  Comprimir ou converter uma imagem? Resposta em 30 segundos - regras de decisao para tamanho de arquivo, escolha de formato, trocas de qualidade e a ferramenta certa para cada trabalho.
- [Comprimir Zip - Quando o arquivo encolhe o tamanho](https://freetoolonline.com/guides/pt/kompres-zip.html) [lastmod=2026-07-06]
  Guia de compressao zip: quando o formato .zip realmente encolhe o tamanho, quando nao, e onde fica a ferramenta criadora de arquivos no navegador. Gratuita, sem instalacao.
- [Comprimir Zip Online - free in-browser ZIP creator and size-trade guide](https://freetoolonline.com/guides/pt/compress-zip-online.html) [lastmod=2026-07-06]
  Comprimir Zip Online guide: bundle one file, several files, or a folder into one .zip archive in your browser. When ZIP saves space, when it does not, and where the free creator lives.
- [Comprimir ZIP: quando a compressao ZIP economiza espaco (e quando nao)](https://freetoolonline.com/guides/pt/compress-zip.html) [lastmod=2026-07-06]
  Um guia curto orientado ao leitor sobre comprimir arquivos em ZIP: quando a compressao ZIP realmente economiza espaco, quando nao, e onde fica o criador ZIP no navegador.
- [Contador de Palavras Online: Guia Passo a Passo](https://freetoolonline.com/guides/pt/word-counter-step-by-step.html) [lastmod=2026-07-06]
  Um guia passo a passo do Word Counter gratuito: o que cada um dos seis numeros ao vivo significa e como o tempo de leitura e estimado.
- [Conversão FFmpeg Online Travada? Três Correções (e Teste de 30 Segundos)](https://freetoolonline.com/guides/pt/ffmpeg-online-conversion-stalled-three-fixes.html) [lastmod=2026-07-06]
  Conversão FFmpeg travada? Três causas comuns - limite de memória do navegador, aba em segundo plano, codec não suportado - cada uma com correção e teste de 30 segundos.
- [Conversor de arquivo ZIP - guia rapido](https://freetoolonline.com/guides/pt/zip-file-converter.html) [lastmod=2026-07-06]
  Guia rapido para o conversor de arquivo ZIP em freetoolonline.com. Comprima pastas e arquivos em um arquivo ZIP online, gratis, sem instalar. Ultima revisao: 2026-05-19.
- [Conversor de Arquivo Zip - O Que Ele Realmente Faz](https://freetoolonline.com/guides/pt/zip-file-converter-what-it-actually-does.html) [lastmod=2026-07-06]
  "Conversor de arquivo zip" e a busca errada. ZIP e um recipiente, nao um formato. Tres intencoes reais: agrupar, extrair ou comprimir imagens. Escolha por intencao em 30 segundos.
- [Conversor de video HD online - passo a passo](https://freetoolonline.com/guides/pt/hd-video-converter-step-by-step.html) [lastmod=2026-07-06]
  Guia passo a passo para converter video HD no navegador - mude o formato ou extraia a faixa de audio com FFmpeg.wasm, sem upload e sem instalacao.
- [Conversor de video HD online - quando usar](https://freetoolonline.com/guides/pt/hd-video-converter-when.html) [lastmod=2026-07-06]
  Conversor de Video HD Online Quando Usar - referencia rapida com Conversor de Video HD Online.
- [Conversor de video HD online vs alternativas](https://freetoolonline.com/guides/pt/hd-video-converter-vs-alternatives.html) [lastmod=2026-07-06]
  Conversor de Video HD Online Vs Alternativas - referencia rapida com Conversor de Video HD Online.
- [Conversor de Vídeo Online Grátis: Converta para MP4, MOV, MP3 e Mais](https://freetoolonline.com/guides/pt/video-converter-online-free.html) [lastmod=2026-07-06]
  Converta vídeo online grátis para MP4, WebM, MOV, MP3 ou WAV. Recorte um trecho antes, sem necessidade de conta. Processamento no servidor para arquivos grandes ou longos.
- [Conversor de Video para GIF Passo a Passo](https://freetoolonline.com/guides/pt/video-gif-converter-step-by-step.html) [lastmod=2026-07-06]
  Conversor de Video para GIF Passo a Passo - os passos exatos para executar o Conversor de Video para GIF desde abrir ate baixar o resultado.
- [Conversor de Video para GIF Quando Usar](https://freetoolonline.com/guides/pt/video-gif-converter-when.html) [lastmod=2026-07-06]
  Conversor de Video para GIF Quando Usar - quando abrir o Conversor de Video para GIF serve para a tarefa e o que esperar quando serve.
- [Conversor De Video Para Gif Vs Alternativas](https://freetoolonline.com/guides/pt/video-gif-converter-vs-alternatives.html) [lastmod=2026-07-06]
  Conversor De Video Para Gif Vs Alternativas - como o Conversor de Video para GIF se compara com um aplicativo de desktop ou um servico baseado em upload.
- [Conversor GIF para Quadros - Extraia Cada Quadro como PNG ou JPG](https://freetoolonline.com/guides/pt/gif-to-frames-converter.html) [lastmod=2026-07-06]
  Converta um GIF animado em quadros individuais. Carregue, escolha PNG ou JPG e baixe cada quadro como uma imagem separada. Sem instalacao. Revisado 2026-06-10.
- [Conversor HEIC vs JPG](https://freetoolonline.com/guides/pt/heic-vs-jpg-converter-when-each-wins.html) [lastmod=2026-07-06]
  Quando converter HEIC para JPG, quando manter o HEIC original e quando nenhum caminho vence. Regras de decisao para sincronia iCloud, destinatarios Windows e edicao.
- [Converter 100 Fotos HEIC para JPG](https://freetoolonline.com/guides/pt/how-to-convert-100-heic-photos-to-jpg.html) [lastmod=2026-07-06]
  Como converter mais de 100 fotos HEIC para JPG no navegador sem upload. Fluxo em lote, configuracoes de qualidade, preservacao de EXIF e caminhos para Windows/Mac.
- [Converter milissegundos para data - guia](https://freetoolonline.com/guides/pt/convert-milliseconds-to-date.html) [lastmod=2026-07-06]
  Converter milissegundos para data online: cole um timestamp Unix de 13 digitos e leia a data e hora locais. Gratis, so no navegador, sem instalar. Ultima revisao: 2026-05-17.
- [Correcao de erros do QR code e falhas de leitura](https://freetoolonline.com/guides/pt/qr-code-error-correction-and-scan-failures.html) [lastmod=2026-07-06]
  Se um QR code nao le, a causa geralmente e uma de quatro: tamanho do payload, nivel de correcao de erros, contraste ou escala de impressao. Veja qual e corrija.
- [Cortar e Girar Imagem: escolha o quadro, depois alinhe](https://freetoolonline.com/guides/pt/crop-and-rotate-image.html) [lastmod=2026-07-06]
  Corte e gire uma imagem no navegador - escolha uma proporcao predefinida ou um retangulo de pixels livre, depois alinhe com passos de 45 graus ou uma alavanca de angulo livre. Gratis, sem upload.
- [Criar Arquivo ZIP Online - o que a ferramenta faz e quando o ZIP economiza espaço](https://freetoolonline.com/guides/pt/make-zip-file-online.html) [lastmod=2026-07-06]
  Criar arquivo ZIP online: quando o ZIP realmente economiza espaço, quando não, e como enviar arquivos ou uma pasta como um único download. Grátis, sem instalação.
- [Criar Arquivo Zip Online (Criador ZIP Gratuito, Sem Instalação, Sem Conta)](https://freetoolonline.com/guides/pt/create-zip-file-online.html) [lastmod=2026-07-06]
  Crie um arquivo ZIP online a partir de uma pasta ou seleção de múltiplos arquivos. Criador gratuito em /zip-tools/zip-file.html; sem instalação em nenhum dos lados; arquivo é excluído automaticamente após uma retenção curta. Última revisão 2026-05-18.
- [Cronometro Online: Guia Passo a Passo](https://freetoolonline.com/guides/pt/stopwatch-step-by-step.html) [lastmod=2026-07-06]
  Start, Lap, Stop e Reset - veja exatamente o que cada controle faz e como a lista de voltas funciona antes de cronometrar algo.
- [CSS Unminifier vs Prettier: Quando Usar Cada Um (Ler CSS Enviado ou Formatar Fonte)](https://freetoolonline.com/guides/pt/css-unminifier-vs-prettier-when-to-use-each.html) [lastmod=2026-07-06]
  Quando CSS Unminifier e a ferramenta certa para ler CSS enviado rapidamente, quando Prettier e a ferramenta certa para formatar fonte que voce vai commitar, e o que nenhum pode recuperar apos um build com tree-shaking.
- [CSV vs JSON - Quando Usar Cada Formato de Dados](https://freetoolonline.com/guides/pt/csv-vs-json-data-formats.html) [lastmod=2026-07-06]
  Formatos de dados CSV vs JSON - quando escolher linhas-e-colunas vs objetos estruturados, com compensações de parsing, tamanho e ferramentas para fluxos 2026.
- [Decodificar MD5: o que os leitores geralmente querem e para onde ir](https://freetoolonline.com/guides/pt/md5-decode.html) [lastmod=2026-07-06]
  Guia de decodificacao MD5: MD5 e de mao unica, entao "decodificar" geralmente significa gerar um hash, procurar um texto plano conhecido, ou escolher um hash diferente. Caminhos para a ferramenta certa.
- [Desbloqueador de senha ZIP: quando uma ferramenta online pode remover a senha (e quando nao consegue quebra-la)](https://freetoolonline.com/guides/pt/zip-password-unlocker.html) [lastmod=2026-07-06]
  O que desbloqueador de senha ZIP significa online: remover uma senha que voce ja sabe de um arquivo .zip; senhas desconhecidas nao podem ser quebradas. Revisado em 2026-05-18.
- [Desbloqueador de Zip Online: Use isto quando voce sabe a senha](https://freetoolonline.com/guides/pt/zip-unlocker-online.html) [lastmod=2026-07-06]
  Um "desbloqueador de zip online" e a ferramenta certa apenas quando voce ja sabe a senha. Abra o removedor no navegador, digite a senha, baixe a copia desbloqueada.
- [Desbloquear arquivo ZIP online - guia](https://freetoolonline.com/guides/pt/unlock-zip-file-online.html) [lastmod=2026-07-06]
  Desbloqueie um arquivo ZIP online: escolha a rota para ZIPs protegidos por senha vs ZIPs simples, execute a ferramenta certa gratis no navegador. Ultima revisao: 2026-05-20.
- [Descriptografador MD5 - Busca Reversa e Gerador de Hash Online](https://freetoolonline.com/guides/pt/md5-decrypter.html) [lastmod=2026-07-06]
  Use a ferramenta MD5 gratuita para gerar hashes, comparar checksums ou buscar um valor conhecido. Funciona no seu navegador - sem upload, sem conta.
- [Descriptografar Hash MD5: Quando o Lookup Funciona, Quando Nao](https://freetoolonline.com/guides/pt/md5-hash-decrypt.html) [lastmod=2026-07-06]
  Descriptografar hash MD5 - a pergunta pratica. O lookup reverso funciona para entradas curtas e comuns que estao em rainbow tables e dicionarios; para segredos aleatorios, forca bruta e o piso.
- [Descriptografar MD5 online: por que voce nao consegue, e o atalho pratico](https://freetoolonline.com/guides/pt/md5-decrypt-online.html) [lastmod=2026-07-06]
  MD5 e de mao unica - nao pode ser descriptografado. Aqui esta o que "descriptografar MD5 online" de fato significa e o caminho seguro para procurar hashes MD5 conhecidos. Ultima revisao 2026-05-18.
- [Despertador Online: Guia Passo a Passo](https://freetoolonline.com/guides/pt/alarm-clock-step-by-step.html) [lastmod=2026-07-06]
  Defina o horario do alarme, veja o alerta na tela, e veja exatamente o que acontece - e o que nao acontece - quando ele dispara.
- [Dividir GIF em Quadros Online - extrair cada quadro da animação](https://freetoolonline.com/guides/pt/split-gif-into-frames.html) [lastmod=2026-07-06]
  Guia Dividir GIF em Quadros: extraia cada quadro da animação como uma imagem separada, no navegador, sem instalação. Passo a passo, grátis. Última revisão 2026-05-14.
- [Dividir PDF Online Gratis](https://freetoolonline.com/guides/pt/split-pdf-online-free.html) [lastmod=2026-07-06]
  Divida um PDF online gratis: extraia um intervalo de paginas para um novo arquivo, ou separe cada pagina em seu proprio PDF. Sem conta, sem instalacao. Ultima revisao 2026-06-14.
- [Editor de Fotos Online Gratis - Cortar, Redimensionar e Filtrar no Navegador](https://freetoolonline.com/guides/pt/photo-editor-online-pixlr.html) [lastmod=2026-07-06]
  Editor de fotos gratis no navegador: cortar, redimensionar, filtros e texto, sem envio, sem conta. Edite fotos online no aparelho. Last reviewed 2026-07-02.
- [Editor de Fotos vs App de Graficos vs Batch](https://freetoolonline.com/guides/pt/photo-editor-vs-graphics-app-vs-batch-processor.html) [lastmod=2026-07-06]
  Tres categorias de ferramentas de imagem resolvem tres problemas diferentes. Editor de fotos para uma imagem, app de graficos para design, batch processor para muitos arquivos de uma vez.
- [Embaralhador de Lista Aleatoria vs. Alternativas](https://freetoolonline.com/guides/pt/random-list-shuffler-vs-alternatives.html) [lastmod=2026-07-06]
  Compara o embaralhador de lista aleatoria no navegador com uma reordenacao manual e uma formula de planilha RAND(), em tempo de configuracao, tamanho de instalacao e privacidade.
- [Embaralhador de Lista Aleatoria: Guia Passo a Passo](https://freetoolonline.com/guides/pt/random-list-shuffler-step-by-step.html) [lastmod=2026-07-06]
  Passo a passo: cole uma lista, clique em Shuffle, e receba uma ordem aleatoria justa usando Fisher-Yates e crypto.getRandomValues no navegador.
- [Escada de Edicao PDF - Escolha a Ferramenta PDF Certa](https://freetoolonline.com/guides/pt/pdf-editing-ladder.html) [lastmod=2026-07-06]
  Escada de decisao para edicao PDF. Dividir, juntar, extrair, proteger, achatar, converter - escolha a ferramenta certa por intencao em 30 segundos. 12 ferramentas PDF mapeadas para o fluxo.
- [Espelho de Webcam vs Flip Explicado: Por Que Seu Preview de Câmera Inverte o Texto](https://freetoolonline.com/guides/pt/camera-mirror-vs-flip-explained.html) [lastmod=2026-07-06]
  Por que seu preview de webcam inverte texto e o vídeo gravado geralmente não. Procedimento de prova de 30 segundos mais passos exatos de desativar espelho para OBS, Zoom, Google Meet e Microsoft Teams.
- [Este Numero Longo e um Timestamp? Milissegundos vs Segundos](https://freetoolonline.com/guides/pt/long-number-millisecond-or-second.html) [lastmod=2026-07-06]
  Um numero colado de 10, 13, 16 ou 19 digitos pode ser segundos Unix, milissegundos, microssegundos, nanossegundos ou apenas um ID - aqui esta como saber rapido.
- [Extrair Frames de GIF: PNG ou JPG, Qual Formato Escolher?](https://freetoolonline.com/guides/pt/extract-gif-frames-png-vs-jpg-which-format.html) [lastmod=2026-07-06]
  PNG preserva o canal alfa e é sem perdas para edição; JPG é menor e ideal para miniaturas. Quando escolher cada um ao extrair frames de GIF.
- [Extrair Frames de um GIF](https://freetoolonline.com/guides/pt/how-to-extract-frames-from-a-gif-for-a-social-post.html) [lastmod=2026-07-06]
  Como extrair frames de um GIF para uma publicacao social - escolher um frame heroi, preservar transparencia, e entregar uma imagem estatica que carrega rapido.
- [Extrator de Frames GIF - extraia quadros de qualquer GIF animado](https://freetoolonline.com/guides/pt/gif-frame-extractor.html) [lastmod=2026-07-06]
  Guia passo a passo para extrair quadros de qualquer GIF animado: escolha PNG ou JPG, defina FPS e baixe cada quadro. Ultima revisao 2026-05-14.
- [Fala para Texto Passo a Passo](https://freetoolonline.com/guides/pt/speech-text-step-by-step.html) [lastmod=2026-07-06]
  Fala para Texto Passo a Passo - os passos exatos para usar Fala para Texto do inicio ao resultado baixado.
- [Fala para Texto Quando Usar](https://freetoolonline.com/guides/pt/speech-text-when.html) [lastmod=2026-07-06]
  Fala para Texto Quando Usar - quando abrir Fala para Texto e adequado e o que esperar.
- [Fala para Texto vs Alternativas](https://freetoolonline.com/guides/pt/speech-text-vs-alternatives.html) [lastmod=2026-07-06]
  Fala para Texto vs Alternativas - como Fala para Texto se compara com um aplicativo desktop ou um servico de upload.
- [Ferramenta de Diff Online - Guia para Comparar Dois Textos Lado a Lado](https://freetoolonline.com/guides/pt/online-diff-tool.html) [lastmod=2026-07-06]
  Guia da ferramenta de diff online: cole dois blocos de texto e veja as linhas adicionadas, removidas e alteradas lado a lado no navegador. Sem instalacao, sem upload.
- [Ferramenta ZIP Online (Gratuita, Servico de Construcao no Navegador)](https://freetoolonline.com/guides/pt/i-love-zip.html) [lastmod=2026-07-06]
  Ferramenta zip online: transforme uma pasta ou selecao de varios arquivos em um .zip por meio de um servico de construcao privado. Gratuita, sem instalacao, sem conta, arquivos-fonte sao excluidos automaticamente.
- [Ferramentas de Imagem no Navegador - Licoes Aprendidas](https://freetoolonline.com/guides/pt/what-we-learned-running-free-in-browser-image-tools-for-100k-monthly-users.html) [lastmod=2026-07-06]
  O que aprendemos rodando ferramentas de imagem gratis no navegador para 100 mil usuarios mensais - escolhas tecnicas, padroes de uso e o que nos surpreendeu.
- [Ferramentas online gratuitas - sem upload necessario](https://freetoolonline.com/guides/pt/free-online-tools-that-work-without-uploading-files.html) [lastmod=2026-07-06]
  Como ferramentas baseadas em navegador convertem, comprimem e editam arquivos sem nunca envia-los. A razao tecnica que faz funcionar, os limites e a privacidade que voce ganha de graca.
- [FFmpeg Online vs FFmpeg Local - Quando Cada Um Vence](https://freetoolonline.com/guides/pt/ffmpeg-online-vs-local-ffmpeg-when-each-wins.html) [lastmod=2026-07-06]
  FFmpeg online (wasm de navegador) vs FFmpeg CLI local - limites de tamanho, privacidade, velocidade e cobertura de codec. Quando escolher cada um para processamento de video/audio.
- [FFmpeg Online vs Video Converter - Qual Ferramenta Abrir](https://freetoolonline.com/guides/pt/ffmpeg-online-vs-video-converter-which-to-pick.html) [lastmod=2026-07-06]
  Guia de roteamento para a tarefa "ffmpeg online": quando abrir FFmpeg Online e quando a rota especifica do formato Video Converter ou GIF Maker e mais rapida. Cinco regras de roteamento, uma decisao em 30 segundos.
- [Formatador de Codigo Passo a Passo: JS, CSS, HTML e JSON](https://freetoolonline.com/guides/pt/code-formatter-beautifier-step-by-step.html) [lastmod=2026-07-06]
  Guia passo a passo para formatar JavaScript, CSS, HTML e JSON com o formatador de codigo gratuito - o que cada linguagem precisa e quando usar o JSON Parser.
- [Formatador JSON online - passo a passo](https://freetoolonline.com/guides/pt/json-formatter-step-by-step.html) [lastmod=2026-07-06]
  Formatador JSON Online Passo a Passo - referencia rapida com Formatador JSON Online.
- [Formatador JSON online - quando usar](https://freetoolonline.com/guides/pt/json-formatter-when.html) [lastmod=2026-07-06]
  Formatador JSON Online Quando Usar - referencia rapida com Formatador JSON Online.
- [Formatador JSON online vs alternativas](https://freetoolonline.com/guides/pt/json-formatter-vs-alternatives.html) [lastmod=2026-07-06]
  Formatador JSON Online Vs Alternativas - referencia rapida com Formatador JSON Online.
- [Formato de foto do iPhone explicado](https://freetoolonline.com/guides/pt/iphone-photo-format-explained-heic-jpg-png-raw.html) [lastmod=2026-07-06]
  Fotos do iPhone podem ser HEIC, JPG, PNG ou RAW. Aqui esta o que cada formato e, quando o iOS o usa, e o correto para converter antes de compartilhar fora da Apple.
- [Frames GIF vs Taxa de Quadros GIF (FPS): Qual Voce Realmente Precisa?](https://freetoolonline.com/guides/pt/gif-frames-extract-vs-frame-rate-fps-explained.html) [lastmod=2026-07-06]
  Frames GIF sao as imagens estaticas dentro de um GIF animado; taxa de quadros GIF (FPS) e a velocidade de reproducao. Este guia diz qual combina com sua tarefa em uma frase e como escolher o FPS certo ao extrair frames.
- [Gerador de Numero Aleatorio Online: Guia Passo a Passo](https://freetoolonline.com/guides/pt/random-number-generator-step-by-step.html) [lastmod=2026-07-06]
  Guia passo a passo do Gerador de Numero Aleatorio Online: como definir Min e Max, ler o resultado, e a diferenca em relacao ao dice roller e coin flip.
- [Gerador de QR Code - Melhores Praticas](https://freetoolonline.com/guides/pt/qr-code-generator-best-practices.html) [lastmod=2026-07-06]
  Um QR code que sempre le e um pequeno conjunto de escolhas: correcao de erros, contraste, tamanho, payload. Padroes que funcionam, os que falham no campo.
- [Gerador de Senhas Passo a Passo: Crie uma Senha Forte no Navegador](https://freetoolonline.com/guides/pt/password-generator-step-by-step.html) [lastmod=2026-07-06]
  Um guia passo a passo do Password Generator gratuito: defina o comprimento, escolha os conjuntos de caracteres, leia a etiqueta de forca e copie uma senha aleatoria forte - tudo no navegador.
- [Gerador de Senhas vs. Alternativas: Qual Usar](https://freetoolonline.com/guides/pt/password-generator-vs-alternatives.html) [lastmod=2026-07-06]
  Compare o gerador de senhas no navegador com digitar a sua propria, usar o navegador ou um gerenciador - veja qual abordagem gera as senhas mais fortes e praticas.
- [Gerador de Senhas: Quando Usar](https://freetoolonline.com/guides/pt/password-generator-when.html) [lastmod=2026-07-06]
  Descubra quando usar um gerador de senhas no navegador: criacao de conta, redefinicao de senha e qualquer login que exija senhas unicas e imprevisíveis.
- [GIF em Frames: Salve cada frame de animacao como PNG ou JPG](https://freetoolonline.com/guides/pt/gif-into-frames.html) [lastmod=2026-07-06]
  Transforme um GIF em frames individuais online. Faca upload da animacao, escolha PNG ou JPG, e baixe cada frame como uma imagem estatica. Gratis, sem instalar. Ultima revisao: 2026-05-20.
- [GIF para Quadro - extraia cada quadro como PNG ou JPG](https://freetoolonline.com/guides/pt/gif-to-frame.html) [lastmod=2026-07-06]
  Carregue um GIF animado e extraia cada quadro como PNG ou JPG separado. Sem instalacao. Arquivos excluidos automaticamente. Revisado em 2026-06-10.
- [Gravador de Voz Online Passo a Passo](https://freetoolonline.com/guides/pt/voice-recorder-step-by-step.html) [lastmod=2026-07-06]
  Gravador de Voz Online Passo a Passo - os passos exatos para usar o Online Voice Recorder do inicio ao resultado baixado.
- [Gravador de Voz Online Versus Alternativas](https://freetoolonline.com/guides/pt/voice-recorder-vs-alternatives.html) [lastmod=2026-07-06]
  Gravador de Voz Online Versus Alternativas - como o Online Voice Recorder se compara com um aplicativo de desktop ou um servico online baseado em upload.
- [Guia de Teste de Pixel Morto](https://freetoolonline.com/guides/pt/dead-pixel-testing-guide.html) [lastmod=2026-07-06]
  Guia de teste de pixel morto - pixel morto vs preso vs quente, verificações de cor em tela cheia, passos de recuperação, e quando a substituição em garantia se justifica.
- [Hash MD5 no navegador - o que chamadas como `common::md5::gethash64string` realmente fazem](https://freetoolonline.com/guides/pt/common-md5-gethash64string.html) [lastmod=2026-07-06]
  Hash MD5 explicado para leitores buscando nomes de metodos no estilo framework. O que um MD5 retorna, onde a busca reversa em cache se aplica, e quando nao usar MD5.
- [HEIC para JPG: o que o conversor realmente faz](https://freetoolonline.com/guides/pt/heic-to-jpg-claims-what-actually-works.html) [lastmod=2026-07-06]
  Como /heic-to-jpg.html realmente funciona: decodificacao libheif, re-codificacao JPG, controles de EXIF + qualidade, mais as afirmacoes que a ferramenta NAO faz. Leia antes de enviar.
- [HEIC vs JPG vs WebP](https://freetoolonline.com/guides/pt/heic-vs-jpg-vs-webp.html) [lastmod=2026-07-06]
  Fotos do iPhone sao HEIC; Windows e Android esperam JPG. O que cada formato comprime bem, quando WebP e a escolha certa para web e como converter entre eles.
- [Hora atual em milissegundos: leia o valor epoch ao vivo e use-o corretamente](https://freetoolonline.com/guides/pt/current-time-in-milliseconds.html) [lastmod=2026-07-06]
  Leia a hora atual em milissegundos desde a epoch Unix no navegador, copie para uma linha de log ou chamada de API, e evite a confusão 10-dígitos-vs-13-dígitos segundo-vs-milissegundo.
- [Imagem para Base64 - Embutir em HTML/CSS vs Vincular o Arquivo de Imagem](https://freetoolonline.com/guides/pt/image-to-base64-embed-in-html-vs-link.html) [lastmod=2026-07-06]
  Voce deve embutir uma imagem como URL de dados base64 em HTML/CSS, ou vincular o arquivo de imagem? Uma regra de decisao pratica com limites concretos em bytes, trade-offs de cache e HTTP/2, e uma verificacao de sanidade em 30 segundos.
- [ImageMagick Online vs Ferramentas Especificas - Qual Escolher](https://freetoolonline.com/guides/pt/imagemagick-online-vs-task-specific-tools-which-to-pick.html) [lastmod=2026-07-06]
  Guia de encaminhamento: quando abrir ImageMagick Online e quando uma ferramenta especifica (Crop, Resize, Compress, HEIC to JPG) e o caminho mais rapido. Cinco regras, uma decisao em 30 segundos.
- [Inverter Texto: Quando Isso Ajuda de Verdade](https://freetoolonline.com/guides/pt/reverse-text-when.html) [lastmod=2026-07-06]
  Quando inverter texto ajuda: verificar palindromos, criar legendas espelhadas, cifras simples, e a comparacao com planilha, rev ou um script.
- [JPG Comprimido Parece Borrado? Três Causas (e Correções Rápidas)](https://freetoolonline.com/guides/pt/compressed-jpg-looks-blurry-three-causes.html) [lastmod=2026-07-06]
  JPG parece borrado depois da compressão? Três causas comuns - qualidade muito baixa, re-codificações repetidas, fonte upscaled - cada uma com uma correção rápida.
- [JPG vs JPEG - sao o mesmo?](https://freetoolonline.com/guides/pt/jpg-vs-jpeg-are-they-the-same.html) [lastmod=2026-07-06]
  JPG e JPEG sao o mesmo formato de imagem. As duas extensoes existem por causa de um antigo limite de tres letras do Windows. Aqui esta a historia e qual nome preferir.
- [JPG vs PNG para a web](https://freetoolonline.com/guides/pt/jpg-vs-png-for-web.html) [lastmod=2026-07-06]
  JPG vs PNG para imagens web - quando a compressao com perdas vence, quando lossless + transparencia importa e como o WebP muda o calculo em 2026.
- [JSON Parser Online: Validar vs Formatar vs Vista em Arvore - Que Funcao Precisa](https://freetoolonline.com/guides/pt/json-parser-validate-vs-format-vs-tree-view.html) [lastmod=2026-07-06]
  Validar, formatar ou explorar JSON? Um guia de 30 segundos para escolher a sub-funcao certa do parser JSON gratuito em freetoolonline.com - no navegador.
- [JSON vs YAML vs TOML, Explicado](https://freetoolonline.com/guides/pt/json-vs-yaml-vs-toml-config-formats-explained.html) [lastmod=2026-07-06]
  Tres formatos de configuracao, tres ergonomias. JSON para maquinas, YAML para humanos, TOML para configuracao rasa. Os compromissos que decidem o que o seu projeto precisa.
- [Juntar PDF Online Grátis - Combine PDFs no Seu Navegador](https://freetoolonline.com/guides/pt/merge-pdf-online-free-unlimited.html) [lastmod=2026-07-06]
  Junte arquivos PDF online de graça - combine vários PDFs em um só, reordene antes de exportar e depois baixe. A opção no navegador não exige envio nem conta.
- [Lancador de Moeda Online: Guia Passo a Passo](https://freetoolonline.com/guides/pt/coin-flip-step-by-step.html) [lastmod=2026-07-06]
  Guia passo a passo do Coin Flip Online: como lancar, ler o resultado, e a diferenca em relacao ao rolador de dados e a roleta de nomes.
- [Link de Download Não Aparece Após Conversão - 5 Correções](https://freetoolonline.com/guides/pt/download-link-not-appearing-after-conversion-five-fixes.html) [lastmod=2026-07-06]
  O upload terminou mas o link de download nunca apareceu? Cinco causas concretas e correções para ferramentas conversoras online - em ordem de probabilidade.
- [MD5 para texto - por que voce nao pode converter de volta (e o que fazer)](https://freetoolonline.com/guides/pt/md5-to-text-why-you-cannot-convert-back.html) [lastmod=2026-07-06]
  Uma string MD5 de 32 caracteres e uma impressao digital de mao unica - nao pode ser convertida de volta no texto que a produziu. Este guia explica por que, e da as tres acoes que realmente funcionam: verificar uma string conhecida, procurar um hash de entrada comum, ou escolher um hash diferente para o trabalho.
- [MD5 vs SHA-256 - Quando Usar Cada Um](https://freetoolonline.com/guides/pt/md5-vs-sha256-when-to-hash.html) [lastmod=2026-07-06]
  MD5 vs SHA-256 - velocidade, resistencia a colisoes e casos de uso concretos. Quando o fingerprinting e suficiente, quando a forca criptografica importa.
- [Metadados EXIF e Compressao de Imagem: O Que e Removido](https://freetoolonline.com/guides/pt/image-compression-and-exif-metadata-what-gets-stripped.html) [lastmod=2026-07-06]
  Comprimir uma imagem normalmente remove metadados EXIF - GPS, camera, timestamp. O que os codificadores removem por padrao, quando manter, e quando remover de proposito.
- [Milissegundo Para Data - ler um milissegundo epoch como uma data](https://freetoolonline.com/guides/pt/millisecond-to-date.html) [lastmod=2026-07-06]
  Cole um valor de milissegundo epoch de 13 digitos e leia-o de volta como data humana. Roda no seu navegador, sem upload, sem conta. Ultima revisao 2026-05-20.
- [Milissegundos para data: UTC vs hora local, por que pode parecer errado](https://freetoolonline.com/guides/pt/milliseconds-to-date-utc-vs-local-time.html) [lastmod=2026-07-06]
  Conversao de milissegundos para data: UTC vs hora local, por que seu resultado pode estar horas errado, e como verificar qual valor esta correto. No navegador, gratis.
- [Millis Atual: Mostrar o Timestamp Unix Atual em Milissegundos](https://freetoolonline.com/guides/pt/current-millis.html) [lastmod=2026-07-06]
  Millis atual significa o que Date.now() retorna agora - um inteiro de 13 dígitos contando milissegundos desde a epoch Unix. Como ler, copiar e converter de volta para data legível.
- [Minificador CSS vs Compressor](https://freetoolonline.com/guides/pt/css-minifier-vs-compressor.html) [lastmod=2026-07-06]
  Minificador CSS vs compressor - remoção de espaços em branco vs compressão gzip/brotli, o que cada um economiza, e a ordem exata do pipeline para entrega em produção.
- [Minificador CSS vs Uglifier vs Tree-Shaking](https://freetoolonline.com/guides/pt/css-minifier-vs-uglifier-vs-tree-shaking.html) [lastmod=2026-07-06]
  Três táticas de redução de tamanho para um objetivo. Minificador remove espaços em branco, uglifier renomeia símbolos, tree-shaking descarta regras não usadas. Quando cada um compensa.
- [Minifique CSS e JS para Cold Start](https://freetoolonline.com/guides/pt/how-to-minify-css-js-for-cloud-run-cold-start.html) [lastmod=2026-07-06]
  Minifique CSS e JS para reduzir o cold-start do Cloud Run e o tamanho do bundle do Cloudflare Workers. Ferramentas, flags de build e ganhos de latencia medidos.
- [MP4 para GIF Online Gratis: Corte, Redimensione e Exporte um GIF Animado](https://freetoolonline.com/guides/pt/mp4-to-gif-online-free.html) [lastmod=2026-07-06]
  Converta um clipe MP4 em um GIF animado online gratis: corte uma janela de 3 a 10 segundos, defina largura e taxa de quadros, depois baixe. Feito com a ferramenta GIF Maker.
- [MP4 vs MOV vs MKV - Qual Contentor Quando](https://freetoolonline.com/guides/pt/mp4-vs-mov-vs-mkv-which-container-when.html) [lastmod=2026-07-06]
  Tres contentores de video comparados. MP4 para todo o lado, MOV para o fluxo Apple, MKV para arquivo com varias faixas. Regras claras para escolher e converter.
- [MP4 vs WebM para a Web](https://freetoolonline.com/guides/pt/mp4-vs-webm-for-web.html) [lastmod=2026-07-06]
  MP4 funciona em todos os navegadores; WebM e 20-30 por cento menor nos modernos. Matriz de decisao, padrao de fallback e quando cada contentor vale a pena.
- [ms para data - cole um timestamp de 13 digitos em milissegundos, leia a data local de volta](https://freetoolonline.com/guides/pt/ms-to-date.html) [lastmod=2026-07-06]
  Guia "ms para data": cole um timestamp Unix em milissegundos de 13 digitos, leia de volta a data local correspondente e a hora 24 horas. 10 digitos? Multiplique por 1000 primeiro.
- [Niveis do Teste de Microfone: O Que Silencioso, Normal e Peak Significam](https://freetoolonline.com/guides/pt/microphone-test-online-quiet-normal-peak-meter.html) [lastmod=2026-07-06]
  Leia um medidor de nivel de teste de microfone do navegador em portugues simples: como silencioso se parece, qual e o audio normal pronto para chamada, e quando os picos significam clipping.
- [O Que E um Compactador de Arquivos e Qual Usar](https://freetoolonline.com/guides/pt/what-is-a-file-compressor-and-which-to-use.html) [lastmod=2026-07-06]
  "Compactador de arquivos" nao e uma ferramenta unica. Escolha pelo tipo de arquivo: faca ZIP de uma pasta, comprima fotos, converta HEIC, junte PDFs ou use um link de transferencia.
- [O Que um Teste de LCD Faz (e Quando Executar Um)](https://freetoolonline.com/guides/pt/what-an-lcd-test-does-and-when-to-run-one.html) [lastmod=2026-07-06]
  O que um teste de LCD realmente verifica (pixels mortos, pixels travados, vazamento de luz, banding) - e quando executar um e a jogada certa antes de ficar com uma tela.
- [O que um teste LCD realmente verifica](https://freetoolonline.com/guides/pt/lcd-test-what-it-checks.html) [lastmod=2026-07-06]
  Um teste LCD escaneia pixels mortos, pixels travados, uniformidade de cor e burn-in. O que cada verificacao significa e quando rodar uma antes da garantia ou devolucao.
- [Ordenar Linhas de Texto Passo a Passo: Coloque uma Lista em Ordem no Navegador](https://freetoolonline.com/guides/pt/sort-text-lines-step-by-step.html) [lastmod=2026-07-06]
  Um guia passo a passo da ferramenta gratuita Sort Text Lines: como ordenar uma lista de A-Z ou Z-A, como a ordem e decidida e por que os numeros sao ordenados como texto.
- [Palavra-passe PDF - Proprietario vs Utilizador](https://freetoolonline.com/guides/pt/pdf-password-types-owner-vs-user.html) [lastmod=2026-07-06]
  Tipos de palavra-passe PDF - palavra-passe de proprietario vs utilizador, o que cada uma bloqueia, quando definir cada uma, como escolher palavras-passe que protegem mesmo o documento.
- [Pasta Para Zip: Quando e Como Arquivar Uma Pasta Online (Guia Gratis)](https://freetoolonline.com/guides/pt/folder-to-zip.html) [lastmod=2026-07-06]
  Guia de pasta para zip: quando arquivar uma pasta em um unico .zip realmente economiza espaco, como escolher a ferramenta certa e onde o criador no navegador vive. Gratis, sem instalacao.
- [PDF para Texto Online: Extraia Texto Gratis, Sem Instalar](https://freetoolonline.com/guides/pt/pdf-to-text-online-i-love-pdf.html) [lastmod=2026-07-06]
  Extraia texto de um PDF online, gratis e no seu navegador. Copie ou baixe o resultado como .txt. Funciona em PDFs com texto incorporado; paginas digitalizadas precisam de OCR antes.
- [PDF vs HEIC para Arquivo](https://freetoolonline.com/guides/pt/pdf-vs-heic-for-document-archival.html) [lastmod=2026-07-06]
  PDF vs HEIC para arquivo de documentos - qual preserva recibos, identificacoes e formularios a longo prazo. Tamanho, pesquisa e compromissos de suporte de ferramentas para 2026.
- [Permissão de Teste de Câmera Bloqueada: Como Permitir Acesso à Câmera no Navegador](https://freetoolonline.com/guides/pt/camera-test-permission-blocked-how-to-allow-it.html) [lastmod=2026-07-06]
  Teste de câmera não mostra nada ou não pede prompt de permissão? Permitir acesso à webcam no Chrome, Firefox, Safari e Edge - o caminho exato por navegador, mais o que bloqueado vs ignorado parece.
- [Permissao de Teste de Microfone Bloqueada: Como Permitir Acesso ao Mic no Seu Navegador](https://freetoolonline.com/guides/pt/microphone-test-permission-blocked-how-to-allow-it.html) [lastmod=2026-07-06]
  O teste de microfone mostra um medidor plano ou nenhuma solicitacao de permissao? Permita o acesso ao mic no Chrome, Firefox, Safari e Edge - o caminho exato de cliques por navegador, mais como bloqueado vs ignorado se parece.
- [PNG para SVG - quando vetorizar uma imagem raster](https://freetoolonline.com/guides/pt/png-to-svg-when-to-vectorize-a-raster-image.html) [lastmod=2026-07-06]
  PNG para SVG online - traca automaticamente pixels raster em caminhos vetoriais. Leia quando a vetorizacao funciona (logos, icones, line art) e quando nao funciona (fotos).
- [PNG vs SVG - Quando Usar Cada Um](https://freetoolonline.com/guides/pt/png-vs-svg-when-to-use.html) [lastmod=2026-07-06]
  PNG vs SVG - raster vs vetor, quando escolher cada um para logos, icones, UI e fotos, com caminhos exatos de conversao e compromissos de desempenho.
- [Por Que MD5 Nao Pode Ser Descriptografado](https://freetoolonline.com/guides/pt/why-md5-cannot-be-decrypted.html) [lastmod=2026-07-06]
  MD5 e um hash unidirecional, nao criptografia, entao nao ha chave de descriptografia. O que as ferramentas md5-decrypt realmente fazem, por que MD5 e inseguro para senhas, e o que usar.
- [Porque HEIC Nao Abre no Windows - Tres Solucoes Rapidas](https://freetoolonline.com/guides/pt/why-heic-wont-open-on-windows-three-fixes.html) [lastmod=2026-07-06]
  Quando o Windows diz que nao consegue abrir um ficheiro .heic, tres solucoes rapidas funcionam: instalar a extensao HEIF gratuita, usar um visualizador gratuito ou converter para JPG online.
- [Preflight PDF online: o que verifica de facto (e o que nao)](https://freetoolonline.com/guides/pt/pdf-preflight-online-what-it-actually-checks.html) [lastmod=2026-07-06]
  Preflight PDF online verifica conformidade arquival PDF/A - nao corrige problemas, nao certifica impressao PDF/X nem repara PDFs corrompidos. Guia rapido de escolha de ferramenta antes de carregar.
- [Quando Usar a Calculadora de Porcentagem](https://freetoolonline.com/guides/pt/percentage-calculator-when.html) [lastmod=2026-07-06]
  Calculadora de Porcentagem: quando usar a Percentage Calculator e o que esperar quando ela e a ferramenta certa.
- [Quando Usar o Gravador de Voz Online](https://freetoolonline.com/guides/pt/voice-recorder-when.html) [lastmod=2026-07-06]
  Quando Usar o Gravador de Voz Online - quando abrir o Online Voice Recorder e adequado e o que esperar quando for.
- [Quando Usar um Embaralhador de Lista Aleatoria](https://freetoolonline.com/guides/pt/random-list-shuffler-when.html) [lastmod=2026-07-06]
  Quando um embaralhador de lista aleatoria e a escolha certa: ordem de turnos, atribuicao de tarefas e listas de sorteio - e quando usar uma ferramenta de escolha unica em vez disso.
- [Recortar Imagem Online Grátis - Arrastar, Proporção ou Pixels Exatos](https://freetoolonline.com/guides/pt/crop-image-online-free.html) [lastmod=2026-07-06]
  Recorte uma imagem online grátis no navegador: arraste a caixa de recorte, escolha uma proporção predefinida ou informe pixels exatos. JPG, PNG, WebP mantidos. Sem upload, sem cadastro.
- [Recuperacao de Senha ZIP Online - o que funciona (e o que nao)](https://freetoolonline.com/guides/pt/zip-password-recovery-online.html) [lastmod=2026-07-06]
  Guia de recuperacao de senha ZIP online: o que os desbloqueadores online podem e nao podem fazer, alem dos tres caminhos funcionais quando voce esqueceu uma senha de ZIP. Ultima revisao 2026-05-18.
- [Recuperar um Ficheiro Zip Corrompido - Opcoes](https://freetoolonline.com/guides/pt/recover-corrupt-zip-file-options.html) [lastmod=2026-07-06]
  Caminhos praticos para um zip que nao abre: voltar a descarregar, extracao parcial, ferramentas de reparacao, e quando desistir. O que funciona, o que nao, o que tentar primeiro.
- [Redimensionar Arquivo Zip: O Que "Redimensionar" Significa Para um .zip](https://freetoolonline.com/guides/pt/resize-zip-file.html) [lastmod=2026-07-06]
  "Redimensionar arquivo zip" geralmente significa encolher o arquivo, as vezes dividi-lo, as vezes encolher as fotos dentro antes de re-zipar. Tabela de roteamento + a ferramenta certa para cada caso.
- [Redutor de Tamanho ZIP - quando a compressao ZIP realmente encolhe seu arquivo](https://freetoolonline.com/guides/pt/zip-size-reducer.html) [lastmod=2026-07-06]
  Um guia orientado ao leitor para usar um redutor de tamanho ZIP: quando a compressao ZIP realmente economiza espaco, quando nao, e onde fica o criador ZIP no navegador. Ultima revisao: 2026-05-17.
- [Reduzir Tamanho do Arquivo ZIP Online - Guia Gratis no Navegador](https://freetoolonline.com/guides/pt/reduce-zip-file-size-online.html) [lastmod=2026-07-06]
  Encolha um arquivo ZIP no seu navegador - o que realmente economiza bytes, o que nao, e como atingir o limite de 25 MB de email sem dividir o arquivo.
- [Relogio Analogico Online: Como Ler os Ponteiros](https://freetoolonline.com/guides/pt/analog-clock-step-by-step.html) [lastmod=2026-07-06]
  Veja como os ponteiros de hora, minuto e segundo indicam a hora, por que o movimento parece suave, e onde um relogio analogico ao vivo e util.
- [Relogio Digital Online: Como Ler o Mostrador](https://freetoolonline.com/guides/pt/digital-clock-step-by-step.html) [lastmod=2026-07-06]
  Veja o que o mostrador HH:MM:SS e a linha de data indicam, com que frequencia eles atualizam, e onde um relogio digital grande no navegador e util.
- [Removedor de Fundo com IA - Guia Passo a Passo](https://freetoolonline.com/guides/pt/ai-background-remover-step-by-step.html) [lastmod=2026-07-06]
  Remova o fundo de uma imagem em tres passos com o Removedor de Fundo com IA. Tudo no navegador, sem upload.
- [Removedor de Fundo com IA - Quando Usar](https://freetoolonline.com/guides/pt/ai-background-remover-when.html) [lastmod=2026-07-06]
  Saiba quando usar o Removedor de Fundo com IA no navegador. Processamento local, sem upload, sem conta necessaria.
- [Removedor de Fundo com IA vs Alternativas](https://freetoolonline.com/guides/pt/ai-background-remover-vs-alternatives.html) [lastmod=2026-07-06]
  Compare o Removedor de Fundo com IA no navegador com aplicativos de desktop e servicos online. Privacidade, offline e sem conta.
- [Remover Linhas Duplicadas Passo a Passo: Limpe uma Lista no Navegador](https://freetoolonline.com/guides/pt/remove-duplicate-lines-step-by-step.html) [lastmod=2026-07-06]
  Um guia passo a passo da ferramenta gratuita Remove Duplicate Lines: o que a ferramenta considera uma duplicata, o que ela mantem e como se compara a uma planilha ou linha de comando.
- [Rolador de Dados Online: Guia Passo a Passo](https://freetoolonline.com/guides/pt/dice-roller-step-by-step.html) [lastmod=2026-07-06]
  Guia passo a passo do Dice Roller Online: como definir a quantidade de dados, ler as faces e o total, e a diferenca em relacao a roleta de nomes.
- [Roleta de Nomes Online: Guia Passo a Passo](https://freetoolonline.com/guides/pt/wheel-spinner-wheel-names-step-by-step.html) [lastmod=2026-07-06]
  Start, edite a lista e clique em Spin - veja exatamente como a roleta escolhe um nome de forma justa antes de usar para sorteios ou decisoes.
- [Roleta Sim ou Nao Online: Guia Passo a Passo](https://freetoolonline.com/guides/pt/yes-no-wheel-step-by-step.html) [lastmod=2026-07-06]
  Como a Yes or No Wheel abre pronta em Sim/Nao, como transformar em roleta para qualquer decisao com 2+ opcoes, e como o giro se mantem justo.
- [Saida do Extrator de Frames GIF Parece Errada? Tres Causas e Teste de 30 Segundos](https://freetoolonline.com/guides/pt/gif-frame-extractor-output-looks-wrong-three-causes.html) [lastmod=2026-07-06]
  Extrator de frames GIF deu um frame, frames em branco ou cores estranhas? Tres causas - GIF estatico, modo de descarte do-not-dispose, limite de memoria - cada uma com uma correcao.
- [Scanner de QR Code - Passo a Passo](https://freetoolonline.com/guides/pt/qr-code-scanner-step-by-step.html) [lastmod=2026-07-06]
  Scanner de QR Code - os passos exatos para usar a ferramenta desde a abertura ate o resultado.
- [Scanner de QR Code - Quando Usar](https://freetoolonline.com/guides/pt/qr-code-scanner-when.html) [lastmod=2026-07-06]
  Scanner de QR Code - quando abrir vale a pena e o que esperar quando faz sentido.
- [Scanner de QR Code vs Alternativas](https://freetoolonline.com/guides/pt/qr-code-scanner-vs-alternatives.html) [lastmod=2026-07-06]
  Scanner de QR Code comparado com aplicativo de desktop ou servico online com upload.
- [Senha MD5: como criar hash de uma senha e quando MD5 esta errado](https://freetoolonline.com/guides/pt/md5-password.html) [lastmod=2026-07-06]
  Guia de senha MD5: cole uma string de senha, receba um fingerprint de 32-hex, e saiba quando MD5 e seguro para checksums e quando bcrypt ou argon2id e a escolha certa.
- [SVG para PNG - quando rasterizar](https://freetoolonline.com/guides/pt/svg-to-png-when-to-rasterize-an-svg.html) [lastmod=2026-07-06]
  A maioria dos SVGs deve permanecer vetorial. As excecoes: software legado que nao processa SVG, previews de compartilhamento social, clientes de email. Quando e como rasterizar limpo.
- [Teclas Nao Detetadas no Teste de Teclado: 4 Solucoes](https://freetoolonline.com/guides/pt/keyboard-test-keys-not-detected-four-fixes.html) [lastmod=2026-07-06]
  O teste de teclado nao mostra algumas teclas a destacar? Quatro causas - foco, layout do SO, filtro sticky keys, interruptor de hardware - e uma solucao de um minuto para cada uma.
- [Tela Preta no Teste de Câmera: 4 Correções Que Funcionam](https://freetoolonline.com/guides/pt/camera-test-shows-black-screen-four-fixes.html) [lastmod=2026-07-06]
  Teste de câmera mostra um retângulo preto? Quatro causas - permissão, silenciamento do SO, conflito com câmera virtual, obturador de privacidade - e uma correção de um minuto para cada uma.
- [Tempo em milissegundos: a unidade, as conversões e o valor epoch](https://freetoolonline.com/guides/pt/time-in-ms.html) [lastmod=2026-07-06]
  Um tempo em milissegundos é um número onde 1 segundo equivale a 1000 ms. Veja os significados de duração e epoch, uma tabela de conversão e onde ms aparece no código.
- [Testar LCD: Escolha a ferramenta certa de teste de tela](https://freetoolonline.com/guides/pt/test-lcd.html) [lastmod=2026-07-06]
  Testar LCD, teste LCD ou testador LCD mapeiam todos para um trabalho: verificar sua tela em busca de pixels mortos, cor e luz de fundo no navegador. Escolha a ferramenta certa aqui.
- [Teste de Camera Frontal - Verifique a Camera de Selfie Online](https://freetoolonline.com/guides/pt/front-camera-test.html) [lastmod=2026-07-06]
  Teste de camera frontal online: abra a lente de selfie, veja uma previa ao vivo, alterne entre frontal e traseira e capture um JPEG - tudo no navegador. Revisado em 2026-06-10.
- [Teste de câmera vs teste de webcam vs qualidade de câmera - qual deles?](https://freetoolonline.com/guides/pt/camera-test-vs-webcam-test-which-do-you-need.html) [lastmod=2026-07-06]
  Três nomes, três verificações diferentes. Teste de câmera = hardware frontal/traseiro do telefone. Teste de webcam = câmera laptop/desktop + permissões. Teste de qualidade = foco, exposição, cor, ruído. Qual executar quando.
- [Teste de LCD para Telas de Notebook - Verificacao de Pixel Morto e Cor](https://freetoolonline.com/guides/pt/lcd-test-laptop.html) [lastmod=2026-07-06]
  Teste o LCD de um notebook em busca de pixels mortos, pixels presos e vazamento de luz de fundo - alterne vermelho, verde, azul, preto e branco em tela cheia no seu navegador.
- [Teste de LED vs Teste de LCD: Qual Se Aplica a Sua Tela?](https://freetoolonline.com/guides/pt/led-test-vs-lcd-test-which-applies-to-your-screen.html) [lastmod=2026-07-06]
  LED e a retroiluminacao; LCD e o painel. Em quase toda tela moderna, os dois nomes significam o mesmo hardware - um ciclo de cores em tela cheia responde qualquer das duas perguntas.
- [Teste de LED: como testar a tela de um laptop ou celular](https://freetoolonline.com/guides/pt/led-test.html) [lastmod=2026-07-06]
  Teste sua tela LED em busca de pixels presos, pixels mortos e vazamento de luz. Pinte seis cores em tela cheia no navegador. Sem instalar, gratis.
- [Teste de Microfone Online - O Que Verifica](https://freetoolonline.com/guides/pt/microphone-test-online-what-it-actually-checks.html) [lastmod=2026-07-06]
  Um teste de microfone no navegador confirma que o microfone esta selecionado, capta som e corresponde ao volume esperado. O que nao consegue verificar e para onde ir a seguir.
- [Teste de Microfone Sem Som: 4 Correcoes Que Funcionam](https://freetoolonline.com/guides/pt/microphone-test-no-sound-four-fixes.html) [lastmod=2026-07-06]
  O teste de microfone mostra sem som ou forma de onda plana? Quatro causas - permissao, mudo do sistema, aplicativo segurando o dispositivo, mudo de hardware - e uma correcao de um minuto para cada uma.
- [Teste de Teclado - Rollover vs Anti-Ghosting](https://freetoolonline.com/guides/pt/keyboard-tester-online-rollover-vs-anti-ghosting.html) [lastmod=2026-07-06]
  N-key rollover e anti-ghosting sao funcionalidades diferentes do teclado. Um teste no navegador revela ambas. O que premir, o que procurar, o que o resultado significa.
- [Teste de tela LCD - guia online](https://freetoolonline.com/guides/pt/lcd-screen-test.html) [lastmod=2026-07-06]
  Guia de teste de tela LCD: execute uma verificacao gratuita de pixels mortos e uniformidade de cor no navegador. Passo a passo, sem instalar. Ultima revisao: 2026-05-20.
- [Teste de tela online vs app: qual e mais preciso?](https://freetoolonline.com/guides/pt/screen-test-online-vs-app-which-is-more-accurate.html) [lastmod=2026-07-06]
  Testes de tela no navegador detectam defeitos do painel (pixels mortos, uniformidade, vazamento) em dois minutos. Apps nativos alcancam taxa de atualizacao, HDR e checagens ICC. Por qual comecar.
- [Teste de Tela para Laptop - Checklist de 5 Minutos](https://freetoolonline.com/guides/pt/screen-test-for-laptop-5-minute-checklist.html) [lastmod=2026-07-06]
  Cinco verificacoes rapidas de tela para um laptop que voce acabou de comprar ou esta prestes a devolver - pixels mortos, brilho na bateria vs AC, deslocamento IPS, reflexos, escalonamento. Dois minutos por verificacao.
- [Teste de tela vs teste de camera - qual voce realmente precisa?](https://freetoolonline.com/guides/pt/screen-test-vs-camera-test-pick-the-right-tool.html) [lastmod=2026-07-06]
  Pixels travados ou vazamento de luz: teste de tela. Webcam que nao inicia ou imagem de cabeca para baixo: teste de camera. Escolha a ferramenta de teste de dispositivo certa em freetoolonline.com.
- [Teste de tela vs Teste LCD - mesma coisa?](https://freetoolonline.com/guides/pt/screen-display-test-synonyms.html) [lastmod=2026-07-06]
  Teste de tela, teste de display, teste de monitor - todos significam as mesmas verificacoes. Escolha a ferramenta certa: teste LCD para monitores, teste de camera para webcams.
- [Teste LCD - guia de teste de LCD](https://freetoolonline.com/guides/pt/lcd-test-online.html) [lastmod=2026-07-06]
  Guia de teste LCD: como fazer um teste LCD online, gratis no navegador. Passo a passo, sem instalar. Ultima revisao: 2026-05-13.
- [Teste LCD vs teste de display vs teste de monitor - qual?](https://freetoolonline.com/guides/pt/lcd-test-vs-display-test-which-do-you-need.html) [lastmod=2026-07-06]
  Tres nomes, tres verificacoes diferentes. Teste LCD = pixels do painel e uniformidade. Teste de display = painel + caminho do sinal. Teste de monitor = painel + sinal + portas + escala. Qual rodar quando, e a ferramenta certa para comecar.
- [Teste LCD: Verifique Dead Pixel da Tela Online - Free Tool Online](https://freetoolonline.com/guides/pt/tes-lcd.html) [lastmod=2026-07-06]
  Teste de LCD online: verifique dead pixel, stuck pixel e backlight bleed com seis telas em cheio (vermelho, verde, azul, preto, branco, amarelo) no navegador. Last reviewed: 2026-05-18.
- [Teste OLED vs Teste LCD: O Que Muda em um Painel OLED](https://freetoolonline.com/guides/pt/oled-test-vs-lcd-test-what-changes-on-oled.html) [lastmod=2026-07-06]
  Paineis OLED precisam de um teste diferente do LCD: nao ha vazamento de luz de fundo para procurar, mas burn-in e retencao de imagem importam. Este guia explica o que muda quando sua tela e OLED.
- [Teste pixels mortos antes de devolver um monitor](https://freetoolonline.com/guides/pt/how-to-test-for-dead-pixels-before-returning-a-monitor.html) [lastmod=2026-07-06]
  Como testar pixels mortos antes de devolver um monitor - verificacao de cor em tela cheia, pixels presos vs mortos, prova de garantia, e o que os fabricantes aceitam.
- [Text Repeater Passo a Passo](https://freetoolonline.com/guides/pt/text-repeater-step-by-step.html) [lastmod=2026-07-06]
  Text Repeater Passo a Passo - os passos exatos para usar o Text Repeater, desde abrir a ferramenta até baixar o resultado.
- [Text vs Line vs Word vs Git Diff](https://freetoolonline.com/guides/pt/text-diff-vs-line-diff-vs-word-diff-vs-git-diff.html) [lastmod=2026-07-06]
  Quatro tipos de diff respondem perguntas diferentes. Text diff para qualquer par, line diff para codigo, word diff para prosa, git diff para mudancas rastreadas. Cada um explicado.
- [Texto para Fala - Passo a Passo](https://freetoolonline.com/guides/pt/text-speech-step-by-step.html) [lastmod=2026-07-06]
  Texto para Fala Passo a Passo - os passos exatos para usar a ferramenta de texto para fala do inicio ao resultado final.
- [Texto para Fala Quando Usar Online](https://freetoolonline.com/guides/pt/text-speech-when.html) [lastmod=2026-07-06]
  Texto para Fala Quando Usar - quando vale a pena abrir o Texto para Fala e o que esperar quando ele se encaixa.
- [Texto para Fala Versus Alternativas](https://freetoolonline.com/guides/pt/text-speech-vs-alternatives.html) [lastmod=2026-07-06]
  Texto para Fala Versus Alternativas - como o Texto para Fala se compara com um aplicativo de desktop ou servico de upload.
- [Timer de Contagem Regressiva Online: Guia Passo a Passo](https://freetoolonline.com/guides/pt/countdown-timer-step-by-step.html) [lastmod=2026-07-06]
  Defina os minutos e segundos, inicie a contagem regressiva, e veja exatamente o que acontece - e o que nao acontece - quando ela chega a zero.
- [Timestamps Unix Explicados](https://freetoolonline.com/guides/pt/unix-timestamps-explained.html) [lastmod=2026-07-06]
  Timestamps Unix explicados - segundos vs milissegundos, ISO-8601, RFC 2822, UTC vs hora local e as armadilhas comuns ao converter entre formatos.
- [Tipos de Conteudo de QR Code: URL, vCard, Wi-Fi - Qual Escolher](https://freetoolonline.com/guides/pt/qr-code-content-types-url-vcard-wifi-text-which-to-pick.html) [lastmod=2026-07-06]
  Escolha o tipo de conteudo certo para seu QR: URL vs vCard vs Wi-Fi vs texto - o que cada um codifica e qual cabe num cartao de visita ou panfleto.
- [Tipos de Senha ZIP - forte vs fraca, explicado (quando um removedor online pode ajudar)](https://freetoolonline.com/guides/pt/zip-password-types-strong-vs-weak-explained.html) [lastmod=2026-07-06]
  Antes de enviar um ZIP protegido por senha para /remove-zip-password.html, verifique o tipo de criptografia. ZIP 2.0 legado + uma senha curta ou numerica e recuperavel em segundos. WinZip AES-256 com uma senha forte nao e. Um guia de decisao de 30 segundos para nao desperdicar um upload.
- [Unminify JS: Restaurar a Legibilidade de JavaScript Minificado (Ferramenta Gratis no Navegador)](https://freetoolonline.com/guides/pt/unminify-js.html) [lastmod=2026-07-06]
  Desminificar JavaScript minificado online de graca. Cole o bundle, receba codigo indentado com quebras de linha reintroduzidas - sem instalar, no proprio navegador. Ultima revisao 2026-05-20.
- [Url Decoder Passo A Passo](https://freetoolonline.com/guides/pt/url-decoder-step-by-step.html) [lastmod=2026-07-06]
  Url Decoder Passo A Passo - os passos exatos para executar o URL Decoder do inicio ao resultado.
- [Url Decoder Quando Usar](https://freetoolonline.com/guides/pt/url-decoder-when.html) [lastmod=2026-07-06]
  Url Decoder Quando Usar - quando abrir o URL Decoder e o que esperar quando for adequado.
- [Url Decoder Vs Alternativas](https://freetoolonline.com/guides/pt/url-decoder-vs-alternatives.html) [lastmod=2026-07-06]
  Url Decoder Vs Alternativas - como o URL Decoder se compara com um aplicativo ou servico de upload.
- [Verificação de Câmera - O Que Significa e Qual Ferramenta Usar](https://freetoolonline.com/guides/pt/camera-check.html) [lastmod=2026-07-06]
  Verificação de câmera é o sinônimo cotidiano para "teste de câmera": o fluxo no navegador que pede ao SO o feed da webcam, mostra preview e confirma que a lente está aberta.
- [Verificador LCD: Faca uma Verificacao Gratuita da Tela Online no Navegador](https://freetoolonline.com/guides/pt/lcd-checker.html) [lastmod=2026-07-06]
  verificador lcd, checagem de lcd, verificador de monitor - uma tarefa so: percorrer o painel em cores solidas de tela cheia para detectar pixels mortos, vazamento de luz de fundo e dominante de cor. Gratuito e no navegador.
- [Verifique Webcam e Microfone Antes da Entrevista](https://freetoolonline.com/guides/pt/how-to-check-webcam-and-microphone-before-an-interview.html) [lastmod=2026-07-06]
  Verifique webcam e microfone antes de uma entrevista - teste de navegador de 5 minutos para camera, niveis de microfone, iluminacao e atraso. Sem instalacao, sem upload.
- [Zip online vs 7z vs Rar - qual escolher](https://freetoolonline.com/guides/pt/online-zip-vs-7z-vs-rar-which-to-pick.html) [lastmod=2026-07-06]
  Escolha o formato de arquivo correto online: zip para compatibilidade, 7z para melhor compressao, rar quando precisa abrir um. Matriz de decisao e roteamento de ferramentas no navegador.
- [Zip vs Zipx vs Rar vs 7z, explicado](https://freetoolonline.com/guides/pt/zip-vs-zipx-vs-rar-vs-7z-archive-formats-explained.html) [lastmod=2026-07-06]
  Quatro formatos de arquivo comparados: qual o Windows abre por padrao, qual comprime menor, e qual vale uma app separada. Guia em linguagem simples.
- [Zipar Pasta Online - Como Compactar uma Pasta em ZIP no Navegador](https://freetoolonline.com/guides/pt/zip-a-folder.html) [lastmod=2026-07-06]
  Como zipar uma pasta online no navegador. Passo a passo, sem instalar nada. Explica quando usar maxima compressao e quando descompactar imagens primeiro. Last reviewed 2026-05-21.
- [Zipar Pasta Online Gratis - guia](https://freetoolonline.com/guides/pt/zip-folder-online-free.html) [lastmod=2026-07-06]
  Zipe uma pasta online gratis no navegador - arraste, escolha senha opcional, baixe o .zip. Passo a passo, sem instalar. Ultima revisao: 2026-05-19.

### Vietnamese guides (241)

- [Bai Kiem Tra LCD Lam Gi (va Khi Nao Nen Chay)](https://freetoolonline.com/guides/vi/what-an-lcd-test-does-and-when-to-run-one.html) [lastmod=2026-07-06]
  Bai kiem tra LCD thuc su kiem tra gi (pixel chet, pixel ket, ro sang vien, banding) - va khi nao chay no la lua chon dung truoc khi giu lai mot man hinh.
- [Bai kiem tra LCD thuc su kiem tra gi](https://freetoolonline.com/guides/vi/lcd-test-what-it-checks.html) [lastmod=2026-07-06]
  Bai kiem tra LCD quet pixel chet, pixel ket cung, do dong deu mau va burn-in. Moi kiem tra co y nghia gi va khi nao chay truoc bao hanh hoac tra hang.
- [Bam MD5 trong trinh duyet - cac lenh nhu `common::md5::gethash64string` thuc su lam gi](https://freetoolonline.com/guides/vi/common-md5-gethash64string.html) [lastmod=2026-07-06]
  Giai thich bam MD5 cho doc gia tim ten phuong thuc kieu framework. MD5 tra ve gi, tra cuu nguoc tu cache hoat dong nhu the nao, va khi nao khong nen dung MD5.
- [Base64 - Khi Nao Su Dung Va Khi Nao Khong](https://freetoolonline.com/guides/vi/base64-when-to-use-and-when-not-to.html) [lastmod=2026-07-06]
  Base64 lam du lieu nhi phan an toan ban van voi chi phi kich co 33 phan tram. Dung cho data URL inline va bieu tuong nho; sai cho tai san tren vai kilobyte. Quy tac quyet dinh.
- [Bo kiem tra LCD: Chay kiem tra man hinh online mien phi tren trinh duyet](https://freetoolonline.com/guides/vi/lcd-checker.html) [lastmod=2026-07-06]
  bo kiem tra lcd, kiem tra lcd, bo kiem tra man hinh - cung mot cong viec: chuyen tam nen qua cac mau dac toan man hinh de phat hien pixel chet, ro ri den nen va sai lech mau. Mien phi va chay trong trinh duyet.
- [Bo nen tep ZIP truc tuyen - huong dan](https://freetoolonline.com/guides/vi/online-zip-file-compressor.html) [lastmod=2026-07-06]
  Huong dan bo nen tep ZIP truc tuyen: gom tep hoac ca thu muc thanh mot .zip, dat mat khau tuy chon va tai xuong. Mien phi, tren trinh duyet, khong cai dat.
- [Bo Tao QR Code - Cac Thuc Hanh Tot Nhat](https://freetoolonline.com/guides/vi/qr-code-generator-best-practices.html) [lastmod=2026-07-06]
  Mot QR code luon quet duoc la mot bo nho cac lua chon: sua loi, do tuong phan, kich thuoc, payload. Mac dinh hoat dong, nhung cai that bai trong thuc te.
- [Cac Loai Mat Khau ZIP - manh vs yeu, giai thich (khi nao bo go online co the giup)](https://freetoolonline.com/guides/vi/zip-password-types-strong-vs-weak-explained.html) [lastmod=2026-07-06]
  Truoc khi tai mot ZIP duoc bao ve bang mat khau len /remove-zip-password.html, kiem tra loai ma hoa. ZIP 2.0 cu + mat khau ngan hoac so co the khoi phuc trong vai giay. WinZip AES-256 voi mat khau manh thi khong. Mot huong dan quyet dinh 30 giay de khong lang phi mot lan tai len.
- [Cac Loai Noi Dung Ma QR: URL, vCard, Wi-Fi - Chon Loai Nao](https://freetoolonline.com/guides/vi/qr-code-content-types-url-vcard-wifi-text-which-to-pick.html) [lastmod=2026-07-06]
  Chon dung loai noi dung cho ma QR: URL vs vCard vs Wi-Fi vs van ban - moi loai ma hoa gi va loai nao phu hop cho danh thiep hoac to roi.
- [Cac Lua Chon Thay The MD5: bcrypt, Argon2id, SHA-256](https://freetoolonline.com/guides/vi/md5-alternatives-bcrypt-argon2id-sha256-when-each-fits.html) [lastmod=2026-07-06]
  MD5 sai cho mat khau va toan ven chong doi thu. Chon bcrypt hoac Argon2id cho mat khau, HMAC-SHA-256 cho MAC, SHA-256 cho toan ven.
- [Cach biet mot JPG da bi nen qua nhieu](https://freetoolonline.com/guides/vi/how-to-tell-if-a-jpg-was-compressed-too-much.html) [lastmod=2026-07-06]
  Doc gia tri chat luong da luu cua mot JPG hien co, nhan ra artifact thay duoc cua nen qua tay, va quyet dinh ma hoa lai se giup hay lam te hon.
- [Cach cat va xoay mot hinh anh](https://freetoolonline.com/guides/vi/how-to-crop-and-rotate-an-image.html) [lastmod=2026-07-06]
  Cat va xoay mot hinh anh trong trinh duyet ma khong mat ban goc. Cat chinh xac den pixel, xoay khong mat 90 do, va noi flag xoay EXIF quan trong.
- [Cach chay chat AI rieng tu tren trinh duyet - mien phi](https://freetoolonline.com/guides/vi/how-to-run-a-private-ai-chat-in-your-browser.html) [lastmod=2026-07-06]
  Chay chatbot AI tren trinh duyet; mo hinh tai tren thiet bi cua ban, nen cuoc tro chuyen rieng tu, khong tai len, khong can tai khoan. Can WebGPU.
- [Cach chinh sua ma code online - mien phi, ngay tren trinh duyet](https://freetoolonline.com/guides/vi/how-to-edit-code-online.html) [lastmod=2026-07-06]
  Chinh sua ma code online ngay tren trinh duyet - to mau cu phap cho 18 ngon ngu, giao dien sang va toi, mo va luu tap tin. Khong tai len.
- [Cach chon mau online - HEX, RGB va HSL](https://freetoolonline.com/guides/vi/how-to-pick-a-color-online.html) [lastmod=2026-07-06]
  Chon mot mau online va xem gia tri HEX, RGB va HSL, bang mau phu hop, kiem tra do tuong phan, va luu mau yeu thich - tat ca trong trinh duyet, khong tai khoan.
- [Cach Chon Muc Do Nen - Chat Luong vs Kich Co File, Voi Vi Du](https://freetoolonline.com/guides/vi/how-to-choose-a-compression-level.html) [lastmod=2026-07-06]
  Chon muc do nen dung tren /compress-image.html - 50, 70, 85 hoac 100. Pham vi kich co file cu the, khi nao moi muc du tot va khi nao tiep tuc.
- [Cach Chuyen Doi Anh iPhone Sang JPG](https://freetoolonline.com/guides/vi/how-to-convert-iphone-photo-to-jpg.html) [lastmod=2026-07-06]
  Chuyen doi anh iPhone tu HEIC sang JPG ma khong can iCloud, ung dung cai dat, hoac desktop. Huong dan trinh duyet xu ly anh don va lot deu nhau.
- [Cach chuyen doi don vi online - mien phi va khong can dang ky](https://freetoolonline.com/guides/vi/how-to-convert-units-online.html) [lastmod=2026-07-06]
  Chuyen doi don vi online mien phi: chieu dai, khoi luong, nhiet do, dien tich va the tich. Tat ca trong trinh duyet, khong tai khoan.
- [Cach chuyen doi HEIC sang JPG tung buoc](https://freetoolonline.com/guides/vi/how-to-convert-heic-to-jpg-step-by-step.html) [lastmod=2026-07-06]
  Chuyen doi HEIC sang JPG tung buoc. Giai ma phia may chu qua libheif, tai JPG ve qua HTTPS, san sang gui email. Luong anh iPhone trong vai giay.
- [Cach chuyen van ban thanh hinh anh (PNG) truc tuyen mien phi](https://freetoolonline.com/guides/vi/how-to-turn-text-into-an-image-online.html) [lastmod=2026-07-06]
  Tao kieu cho van ban ngay trong trinh duyet - chon font, kich thuoc, mau sac, khoang cach va bong do, roi tai ve dang PNG. Mien phi, khong tai khoan.
- [Cach Dien Bieu Mau PDF Truc Tuyen - Khong Can Tai Len](https://freetoolonline.com/guides/vi/pdf-filler-form-editor-step-by-step.html) [lastmod=2026-07-06]
  Huong dan tung buoc de dien cac truong cua mot bieu mau PDF co san truc tuyen, ngay trong trinh duyet, khong can tai len va khong can tai khoan.
- [Cach Doc va So Sanh Hash MD5 Dung Cach: Hoa Thuong, Khoang Trang, Dinh Dang Hex](https://freetoolonline.com/guides/vi/read-and-compare-md5-hashes-correctly.html) [lastmod=2026-07-06]
  Hai hash MD5 trung nhau khi 32 ky tu hex giong nhau sau khi chuyen ve chu thuong va xoa khoang trang. Tim hieu 4 khac biet hinh thuc va cac khac biet that su.
- [Cach ghi man hinh truc tuyen - man hinh, camera hoac micro](https://freetoolonline.com/guides/vi/how-to-record-your-screen-online.html) [lastmod=2026-07-06]
  Ghi man hinh, camera hoac micro ngay trong trinh duyet, lam mo khuon mat tren thiet bi va tai ve duoi dang WebM hoac MP4. Khong tai len, khong tai khoan.
- [Cach giai nen tep truc tuyen - ZIP, RAR, 7z (tuyen nao tren trang lam gi)](https://freetoolonline.com/guides/vi/how-to-extract-a-file-online-zip-rar-7z.html) [lastmod=2026-07-06]
  Neu ban da tim "giai nen tep truc tuyen" hoac "file zipper", day la quy tac dieu phoi. Kho luu tru ZIP giai nen truc tuyen qua /unzip-file.html (server-upload, mat khau tuy chon). RAR / 7z giai nen cuc bo voi cong cu cua he dieu hanh - trang nay khong co bo giai nen .rar hay .7z phia may chu, va huong dan noi dieu do mot cach trung thuc.
- [Cach Giam Kich Thuoc Tep ZIP - cai gi nen, cai gi khong](https://freetoolonline.com/guides/vi/how-to-reduce-zip-file-size.html) [lastmod=2026-07-06]
  Vi sao hau het tep ZIP khong nho di va cach thuc su giam mot tep - cai gi nen (van ban, CSV, ma nguon), cai gi khong (JPG, MP4, MP3), va quy trinh hoat dong.
- [Cach Giam Kich Thuoc Tep Zip Online (Mien Phi)](https://freetoolonline.com/guides/vi/how-to-reduce-zip-file-size-online.html) [lastmod=2026-07-06]
  Giam kich thuoc tep zip online va mien phi. Vi sao tep zip cua ban lon, cai gi nen tot, va ba chien thuat de vua moi gioi han email hoac tai len 25 MB.
- [Cach Giau Tin Nhan Trong Anh (Steganography)](https://freetoolonline.com/guides/vi/how-to-hide-a-message-in-an-image.html) [lastmod=2026-07-06]
  Cach giau mot tin nhan van ban bi mat ben trong anh PNG va doc lai, tuy chon co mat khau - mien phi, tren trinh duyet, khong tai len.
- [Cach gop nhieu tep vao mot ZIP](https://freetoolonline.com/guides/vi/how-to-zip-multiple-files-into-one.html) [lastmod=2026-07-06]
  Gop nhieu tep vao mot kho luu tru ZIP duy nhat trong trinh duyet: chon, dat ten dau ra, chon muc nen va tai xuong. Khong can tai len hoac cai dat.
- [Cach kiem tra ban phim truc tuyen tung buoc](https://freetoolonline.com/guides/vi/how-to-test-a-keyboard-online-step-by-step.html) [lastmod=2026-07-06]
  Bai kiem tra ban phim trong trinh duyet trong 60 giay: mo trang, nhan moi phim, xem moi phim sang len. Phat hien phim khong hoat dong, phim ket va loi phim bo nho chinh ma khong can cai dat gi.
- [Cach kiem tra chat luong camera dien thoai cua ban](https://freetoolonline.com/guides/vi/how-to-check-camera-quality-on-your-phone.html) [lastmod=2026-07-06]
  Mot bai kiem tra trinh duyet hai phut cho chat luong camera dien thoai: do phan giai, lay net, anh sang yeu, bui tren ong kinh. The nao la tot, va phan cung vs phan mem.
- [Cach kiem tra man hinh cam ung tim diem chet](https://freetoolonline.com/guides/vi/how-to-test-a-touchscreen-for-bad-spots.html) [lastmod=2026-07-06]
  Kiem tra trong trinh duyet 60 giay cac vung khong phan ung tren man hinh cam ung dien thoai, tablet hoac laptop. Y nghia cua moi mau loi va khi nao goi bao hanh.
- [Cach kiem tra man hinh laptop de tim diem chet va ho sang](https://freetoolonline.com/guides/vi/cek-layar-laptop.html) [lastmod=2026-07-06]
  Kiem tra man hinh laptop ngay tren trinh duyet: to day mau do, luc, lam, den, trang, vang de tim diem chet hoac diem ket. Mien phi, khong cai dat.
- [Cach ky mot PDF sau khi xoa mat khau](https://freetoolonline.com/guides/vi/how-to-sign-pdf-after-removing-a-password.html) [lastmod=2026-07-06]
  Cach ky mot PDF sau khi xoa mat khau chu so huu - luong cong viec hop phap cho hop dong va bieu mau, voi ghi chu phap ly va rieng tu.
- [Cach lam phang mot PDF - va khi nao thuc hien](https://freetoolonline.com/guides/vi/how-to-flatten-a-pdf-and-when-to-do-it.html) [lastmod=2026-07-06]
  Lam phang mot PDF se nuong cac truong bieu mau, ghi chu va chu ky vao do hoa trang tinh. Doc ve cong viec lam phang, khi nao ban can, va khi nao khong.
- [Cach Lam Tep Zip Nho Hon](https://freetoolonline.com/guides/vi/how-to-make-a-zip-file-smaller.html) [lastmod=2026-07-06]
  Lam tep zip nho hon ma khong mat tep: chon muc nen dung, bo phuong tien da duoc nen truoc, chia tep neu phai vuot qua gioi han kich thuoc email.
- [Cach Nen Anh Xuong 50KB Online (Mien Phi)](https://freetoolonline.com/guides/vi/compress-image-online-to-50kb.html) [lastmod=2026-07-06]
  Dua JPG, PNG hoac WebP xuong duoi 50 KB online: chuyen sang JPG, ha thanh truot chat luong va xem ban xem truoc canh nhau truoc khi tai ve. Mien phi, khong can tai khoan.
- [Cach Nen JPG Cho Gioi Han Kich Co Tep Dinh Kem Email](https://freetoolonline.com/guides/vi/how-to-compress-a-jpg-for-email-attachment-limits.html) [lastmod=2026-07-06]
  Chon chat luong JPG dung de dua anh duoi gioi han email 25 MB cua Gmail / 20 MB cua Outlook / 10 MB cong ty ma khong lam anh tro nen nhan nho.
- [Cach Nen Mot Thu Muc](https://freetoolonline.com/guides/vi/how-to-compress-a-folder.html) [lastmod=2026-07-06]
  Nen mot thu muc hoan chinh thanh mot ZIP duy nhat trong trinh duyet cua ban. Ba buoc tu keo tha den tai xuong tep don nho hon. Mien phi, khong cai dat.
- [Cach Nen Tep Truc Tuyen (Tung Buoc)](https://freetoolonline.com/guides/vi/how-to-compress-a-file-online.html) [lastmod=2026-07-06]
  Xac dinh loai tep truoc, sau do chon cong cu phu hop: anh dung Compress Image, HEIC dung HEIC to JPG, PDF dung Flatten PDF, video dung Video Converter, tai lieu dung ZIP.
- [Cach nen tep zip - huong dan ba buoc](https://freetoolonline.com/guides/vi/how-to-compress-a-zip-file.html) [lastmod=2026-07-06]
  Cach nen tep zip truc tuyen trong ba buoc: tha thu muc, chon muc tieu nen, tai ve. Mien phi, chay trong trinh duyet, khong cai dat. Soat lai lan cuoi 2026-05-19.
- [Cach Nen Tep ZIP Xuong 100 KB - Mien Phi, Tren Trinh Duyet](https://freetoolonline.com/guides/vi/compress-zip-file-to-100kb.html) [lastmod=2026-07-06]
  Co gang dua mot ZIP xuong duoi 100 KB? Doc nhung dau vao nao dat duoc muc tieu do mot minh, khi nao nen lai giup va khi nao tep phai duoc chia. Mien phi, trong trinh duyet.
- [Cach Nen Tep ZIP Xuong 2 MB - Mien Phi, Tren Trinh Duyet](https://freetoolonline.com/guides/vi/compress-zip-file-to-2mb.html) [lastmod=2026-07-06]
  Can mot ZIP duoi 2 MB cho gioi han tep dinh kem email? Doc nhung dau vao nao nen xuong 2 MB, khi nao nen lai giup va khi nao chia. Mien phi, trong trinh duyet.
- [Cach Nen Thu Muc Thanh Zip Online, Tung Buoc](https://freetoolonline.com/guides/vi/how-to-zip-folder-online-step-by-step.html) [lastmod=2026-07-06]
  Nen thu muc thanh zip online qua nam buoc: chon thu muc, giu cau truc, dat muc nen, dat ten tep ket qua, tai xuong. Chi trong trinh duyet, kem cac cai bay can tranh.
- [Cach nen ZIP den kich thuoc cu the (2 / 25 MB, 100 KB)](https://freetoolonline.com/guides/vi/how-to-compress-a-zip-file-to-a-specific-size.html) [lastmod=2026-07-06]
  Dat duoc kich thuoc ZIP chinh xac (2 MB, tran 25 MB email, tran 100 KB bieu mau) khong xac dinh duoc. Ba thu thuc su quyet dinh. Thu tu cong cu dung, theo tran.
- [Cach nen Zip nho hon](https://freetoolonline.com/guides/vi/how-to-compress-zip-file-to-smaller-size.html) [lastmod=2026-07-06]
  Nen mot zip hien co lai dung cach: khi nao re-zip giup ich, khi nao no khong lam gi, va cong cu trinh duyet de su dung ma khong tai len.
- [Cach Tach Mot GIF Thanh Cac Khung Hinh](https://freetoolonline.com/guides/vi/how-to-split-a-gif-into-frames-for-editing.html) [lastmod=2026-07-06]
  Lay tung khung hinh tu mot GIF dong de chinh sua, luu tru hoac dang bai xa hoi. Huong dan trinh duyet giu du lieu thoi gian goc theo tung khung.
- [Cach tao danh sach viec can lam online - mien phi, khong dang ky](https://freetoolonline.com/guides/vi/how-to-make-a-to-do-list-online.html) [lastmod=2026-07-06]
  Tao danh sach viec can lam online mien phi. Them viec, danh dau hoan thanh va xoa; danh sach duoc luu trong trinh duyet, khong cai app va khong tai khoan.
- [Cach truc quan hoa du lieu online - tao bieu do tu so lieu](https://freetoolonline.com/guides/vi/how-to-visualize-data-online.html) [lastmod=2026-07-06]
  Bien cac hang du lieu thanh bieu do trong trinh duyet. Dan CSV, JSON hoac Nhan, Gia tri, chon loai bieu do - khong tai len, khong tai khoan.
- [Cat va Xoay Anh: chon khung, sau do can chinh](https://freetoolonline.com/guides/vi/crop-and-rotate-image.html) [lastmod=2026-07-06]
  Cat va xoay mot hinh anh trong trinh duyet - chon mot ty le predefined hoac mot hinh chu nhat pixel tu do, sau do can chinh voi cac buoc 45 do hoac mot tay cam goc tu do. Mien phi, khong tai len.
- [Checklist Kiem Tra Thiet Bi cho Lam Viec Tu Xa (2026)](https://freetoolonline.com/guides/vi/device-test-checklist-for-remote-work.html) [lastmod=2026-07-06]
  Chay checklist kiem tra thiet bi 8 diem truoc cuoc hop tu xa tiep theo. Camera, mic, LCD, ban phim - duong nhanh 60 giay hoac duong day du 5 phut, khong cai dat.
- [Chinh Sua Anh Online Mien Phi - Cat, Doi Kich Thuoc, Loc Ngay Tren Trinh Duyet](https://freetoolonline.com/guides/vi/photo-editor-online-pixlr.html) [lastmod=2026-07-06]
  Trinh chinh sua anh mien phi tren trinh duyet: cat, doi kich thuoc, them bo loc va chu, khong tai len, khong tai khoan. Last reviewed 2026-07-02.
- [Chuyen Doi 100 Anh HEIC Sang JPG](https://freetoolonline.com/guides/vi/how-to-convert-100-heic-photos-to-jpg.html) [lastmod=2026-07-06]
  Cach chuyen doi hon 100 anh HEIC sang JPG trong trinh duyet ma khong tai len. Quy trinh hang loat, cai dat chat luong, giu EXIF, va duong di Windows/Mac.
- [Chuyen Doi FFmpeg Truc Tuyen Dung? Ba Cach Khac Phuc (va Test 30 Giay)](https://freetoolonline.com/guides/vi/ffmpeg-online-conversion-stalled-three-fixes.html) [lastmod=2026-07-06]
  Chuyen doi FFmpeg bi dung? Ba nguyen nhan pho bien - gioi han bo nho trinh duyet, tab nen, codec khong ho tro - moi cai co cach khac phuc va test 30 giay.
- [Chuyen doi mili giay sang ngay - huong dan](https://freetoolonline.com/guides/vi/convert-milliseconds-to-date.html) [lastmod=2026-07-06]
  Chuyen doi mili giay sang ngay truc tuyen: dan mot timestamp Unix 13 chu so va doc ngay gio dia phuong. Mien phi, chi tren trinh duyet, khong cai dat. Cap nhat lan cuoi: 2026-05-17.
- [Chuyen doi tep ZIP - huong dan nhanh](https://freetoolonline.com/guides/vi/zip-file-converter.html) [lastmod=2026-07-06]
  Huong dan nhanh cho bo chuyen doi tep ZIP tren freetoolonline.com. Nen thu muc va tep thanh mot kho luu tru ZIP truc tuyen, mien phi, khong cai dat. Cap nhat lan cuoi: 2026-05-19.
- [Chuyen doi video HD truc tuyen - khi nao dung](https://freetoolonline.com/guides/vi/hd-video-converter-when.html) [lastmod=2026-07-06]
  Chuyen Doi Video HD Truc Tuyen Khi Nao Dung - tham khao nhanh ket hop voi Chuyen Doi Video HD Truc Tuyen.
- [Chuyen doi video HD truc tuyen - tung buoc](https://freetoolonline.com/guides/vi/hd-video-converter-step-by-step.html) [lastmod=2026-07-06]
  Huong dan tung buoc chuyen doi video HD ngay tren trinh duyet - doi dinh dang hoac trich xuat am thanh bang FFmpeg.wasm, khong tai len, khong cai dat.
- [Chuyen doi video HD truc tuyen vs cac lua chon khac](https://freetoolonline.com/guides/vi/hd-video-converter-vs-alternatives.html) [lastmod=2026-07-06]
  Chuyen Doi Video HD Truc Tuyen Vs Cac Lua Chon Khac - tham khao nhanh ket hop voi Chuyen Doi Video HD Truc Tuyen.
- [Chuyen Doi Video Online Mien Phi: Sang MP4, MOV, MP3 va Nhieu Hon](https://freetoolonline.com/guides/vi/video-converter-online-free.html) [lastmod=2026-07-06]
  Chuyen doi video online mien phi sang MP4, WebM, MOV, MP3 hoac WAV. Cat mot doan truoc, khong can tai khoan. Xu ly tren may chu cho tep lon hoac dai.
- [Chuyen GIF thanh Khung hinh - Trich xuat tung Khung hinh PNG hoac JPG](https://freetoolonline.com/guides/vi/gif-to-frames-converter.html) [lastmod=2026-07-06]
  Chuyen GIF dong thanh tung khung hinh rieng le. Tai len, chon PNG hoac JPG va tai xuong moi khung hinh. Khong can cai dat. Cap nhat 2026-06-10.
- [Chuyen MP4 sang GIF Truc Tuyen Mien Phi: Cat, Doi Kich Thuoc va Xuat GIF Dong](https://freetoolonline.com/guides/vi/mp4-to-gif-online-free.html) [lastmod=2026-07-06]
  Chuyen doi mot doan video MP4 thanh GIF dong truc tuyen mien phi: cat trong khoang 3 den 10 giay, dat chieu rong va toc do khung hinh, roi tai xuong. Duoc xay dung tren cong cu GIF Maker.
- [Chuyen Van Ban Thanh Giong Noi Khi Nao Dung](https://freetoolonline.com/guides/vi/text-speech-when.html) [lastmod=2026-07-06]
  Chuyen Van Ban Thanh Giong Noi Khi Nao Dung - khi nao nen mo cong cu nay va nhung dieu co the mong doi khi su dung.
- [Chuyen Van Ban Thanh Giong Noi So Sanh](https://freetoolonline.com/guides/vi/text-speech-vs-alternatives.html) [lastmod=2026-07-06]
  Chuyen Van Ban Thanh Giong Noi So Sanh - so sanh cong cu nay voi ung dung may tinh de ban hoac dich vu tai len.
- [Chuyen Van Ban Thanh Giong Noi Tung Buoc](https://freetoolonline.com/guides/vi/text-speech-step-by-step.html) [lastmod=2026-07-06]
  Chuyen Van Ban Thanh Giong Noi Tung Buoc - cac buoc chinh xac de su dung cong cu chuyen van ban thanh giong noi tu dau den ket qua.
- [Cong Cu Anh Trong Trinh Duyet - Nhung Bai Hoc Rut Ra](https://freetoolonline.com/guides/vi/what-we-learned-running-free-in-browser-image-tools-for-100k-monthly-users.html) [lastmod=2026-07-06]
  Nhung gi chung toi hoc duoc khi van hanh cong cu anh mien phi trong trinh duyet cho 100 nghin nguoi dung moi thang - lua chon ky thuat, mau su dung, va dieu lam chung toi bat ngo.
- [Cong Cu Chuyen Doi Tep Zip - No Thuc Su Lam Gi](https://freetoolonline.com/guides/vi/zip-file-converter-what-it-actually-does.html) [lastmod=2026-07-06]
  "Cong cu chuyen doi tep zip" la tim kiem sai. ZIP la mot container, khong phai mot dinh dang. Ba y dinh thuc su: gom, trich xuat hoac nen anh. Chon theo y dinh trong 30 giay.
- [Cong Cu Chuyen Video Sang GIF Khi Nao Dung](https://freetoolonline.com/guides/vi/video-gif-converter-when.html) [lastmod=2026-07-06]
  Cong Cu Chuyen Video Sang GIF Khi Nao Dung - khi nao mo Cong Cu Chuyen Video Sang GIF phu hop voi cong viec va nen mong doi gi khi no phu hop.
- [Cong Cu Chuyen Video Sang Gif So Voi Cac Lua Chon Khac](https://freetoolonline.com/guides/vi/video-gif-converter-vs-alternatives.html) [lastmod=2026-07-06]
  Cong Cu Chuyen Video Sang Gif So Voi Cac Lua Chon Khac - cach Cong Cu Chuyen Video Sang GIF so sanh voi ung dung may tinh hoac dich vu dua tren tai len.
- [Cong Cu Chuyen Video Sang GIF Tung Buoc](https://freetoolonline.com/guides/vi/video-gif-converter-step-by-step.html) [lastmod=2026-07-06]
  Cong Cu Chuyen Video Sang GIF Tung Buoc - cac buoc chinh xac de chay Cong Cu Chuyen Video Sang GIF tu khi mo den khi tai xuong ket qua.
- [Cong Cu Dem Tu Online: Huong Dan Tung Buoc](https://freetoolonline.com/guides/vi/word-counter-step-by-step.html) [lastmod=2026-07-06]
  Huong dan tung buoc cho cong cu Word Counter mien phi: y nghia cua sau con so truc tiep va cach tinh thoi gian doc uoc tinh.
- [Cong cu Diff Truc tuyen - Huong dan so sanh hai van ban canh nhau](https://freetoolonline.com/guides/vi/online-diff-tool.html) [lastmod=2026-07-06]
  Huong dan cong cu diff truc tuyen: dan hai khoi van ban va doc cac dong them, xoa va thay doi canh nhau ngay tren trinh duyet. Khong cai dat, khong tai len.
- [Cong cu mo khoa mat khau ZIP: khi nao cong cu online co the xoa mat khau (va khi nao no khong the be khoa)](https://freetoolonline.com/guides/vi/zip-password-unlocker.html) [lastmod=2026-07-06]
  "Cong cu mo khoa mat khau ZIP" online co nghia gi: xoa mot mat khau ban da biet khoi mot file .zip; mat khau khong biet thi khong the be. Cap nhat 2026-05-18.
- [Cong cu mo khoa Zip truc tuyen: Dung khi ban biet mat khau](https://freetoolonline.com/guides/vi/zip-unlocker-online.html) [lastmod=2026-07-06]
  Mot "cong cu mo khoa zip truc tuyen" la cong cu dung chi khi ban da biet mat khau. Mo cong cu xoa mat khau trong trinh duyet, nhap mat khau, tai xuong ban da duoc mo khoa.
- [Cong Cu Nen File La Gi va Nen Dung Loai Nao](https://freetoolonline.com/guides/vi/what-is-a-file-compressor-and-which-to-use.html) [lastmod=2026-07-06]
  "Cong cu nen file" khong phai mot cong cu duy nhat. Chon theo loai file: ZIP mot thu muc, nen anh, chuyen HEIC, gom PDFs, hoac dung link chuyen file.
- [Cong Cu Nen File Online: ZIP Mot Thu Muc vs Nen Mot Anh](https://freetoolonline.com/guides/vi/file-compressor-online-when-to-zip-vs-when-to-compress-image.html) [lastmod=2026-07-06]
  Huong dan dinh tuyen cho cau hoi cong cu nen file: khi nao ZIP mot thu muc de chuyen vs khi nao nen mot anh don le de giam kich thuoc byte. Quy tac 30 giay, nam buoc.
- [Cong Cu Nen Kich Thuoc File Zip - Huong Dan Online Mien Phi](https://freetoolonline.com/guides/vi/zip-file-size-compressor.html) [lastmod=2026-07-06]
  Dung cong cu nen kich thuoc file zip online de gom mot thu muc file thanh mot .zip duy nhat va giam tong kich thuoc truoc khi gui. Mien phi, khong cai dat. Cap nhat lan cuoi 2026-05-19.
- [Cong cu nen tep Zip truc tuyen - Goi va thu nho thu muc thanh mot ZIP](https://freetoolonline.com/guides/vi/zip-file-compressor-online.html) [lastmod=2026-07-06]
  Cong cu nen tep zip truc tuyen: goi cac tep hoac mot thu muc nguyen ven thanh mot .zip, dat mat khau tuy chon va tai xuong. Mien phi, trong trinh duyet, khong cai dat.
- [Cong cu nen ZIP Truc tuyen - khi nao no thu nho mot thu muc va khi nao khong](https://freetoolonline.com/guides/vi/zip-compressor-online.html) [lastmod=2026-07-06]
  Mot cong cu nen zip truc tuyen goi mot thu muc cac tep thanh mot tep .zip. Khoan giam kich thuoc phu thuoc vao loai dau vao - van ban giam, JPG/MP4 thi khong. Lien ket cong cu o ben trong.
- [Cong cu nen ZIP: Nen tep vao mot tep ZIP nho hon](https://freetoolonline.com/guides/vi/zip-compressor.html) [lastmod=2026-07-06]
  Mot huong dan ngan ve nhiem vu cua doc gia khi su dung cong cu nen zip: khi nao chon nen zip cho mot thu muc cac tep, tep .zip ket qua giu lai va khong giu lai nhung gi, va cong cu trong trinh duyet nam o dau.
- [Cong Cu Tao Mat Khau vs. Cac Lua Chon Khac](https://freetoolonline.com/guides/vi/password-generator-vs-alternatives.html) [lastmod=2026-07-06]
  So sanh cong cu tao mat khau tren trinh duyet voi tu dat mat khau, dung trinh duyet hoac trinh quan ly - xem cach nao tao ra mat khau manh nhat va thuc te nhat.
- [Cong Cu Tao Mat Khau: Khi Nao Nen Dung](https://freetoolonline.com/guides/vi/password-generator-when.html) [lastmod=2026-07-06]
  Tim hieu khi nao nen dung cong cu tao mat khau tren trinh duyet: tao tai khoan moi, dat lai mat khau va thay the mat khau bi dung lai hoac de doan.
- [Cong cu truc tuyen co thuc su mien phi khong? Quyen rieng tu, kiem tien va mo hinh chay trong trinh duyet](https://freetoolonline.com/guides/vi/tool-free.html) [lastmod=2026-07-06]
  Cong cu truc tuyen co thuc su mien phi khong? Cach cac cong cu chay trong trinh duyet van mien phi ma khong can dang ky, cach quang cao tra chi phi, va nhung gi o lai tren thiet bi cua ban. Ra soat lan cuoi 2026-06-04.
- [Cong cu truc tuyen mien phi - khong can tai len](https://freetoolonline.com/guides/vi/free-online-tools-that-work-without-uploading-files.html) [lastmod=2026-07-06]
  Cach cong cu chay trong trinh duyet chuyen doi, nen va chinh sua tep ma khong bao gio tai chung len. Ly do ky thuat khien no hoat dong, cac gioi han va quyen rieng tu ban duoc mien phi.
- [Cong Cu Xoa Nen AI - Huong Dan Tung Buoc](https://freetoolonline.com/guides/vi/ai-background-remover-step-by-step.html) [lastmod=2026-07-06]
  Xoa nen anh trong ba buoc voi Cong Cu Xoa Nen AI. Toan bo tren trinh duyet, khong tai len.
- [Cong Cu Xoa Nen AI - Khi Nao Su Dung](https://freetoolonline.com/guides/vi/ai-background-remover-when.html) [lastmod=2026-07-06]
  Khi nao su dung Cong Cu Xoa Nen AI tren trinh duyet. Xu ly cuc bo, khong tai len, khong can tai khoan.
- [Cong Cu Xoa Nen AI vs Cac Phuong An Khac](https://freetoolonline.com/guides/vi/ai-background-remover-vs-alternatives.html) [lastmod=2026-07-06]
  So sanh Cong Cu Xoa Nen AI voi ung dung may tinh de ban va dich vu truc tuyen. Bao mat, ngoai tuyen, khong tai khoan.
- [Cong cu ZIP Truc tuyen (Mien phi, Dich vu Xay dung Trong trinh duyet)](https://freetoolonline.com/guides/vi/i-love-zip.html) [lastmod=2026-07-06]
  Cong cu zip truc tuyen: bien mot thu muc hoac lua chon nhieu tep thanh mot tep .zip qua mot dich vu xay dung rieng tu. Mien phi, khong cai dat, khong tai khoan, cac tep nguon tu dong bi xoa.
- [CSS Unminifier vs Prettier: Khi Nao Su Dung Moi Cong Cu (Doc CSS Da Trien Khai Hay Dinh Dang Ma Nguon)](https://freetoolonline.com/guides/vi/css-unminifier-vs-prettier-when-to-use-each.html) [lastmod=2026-07-06]
  Khi nao CSS Unminifier la cong cu dung de doc nhanh CSS da trien khai, khi nao Prettier la cong cu dung de dinh dang ma nguon ban se commit va nhung gi khong cong cu nao co the khoi phuc sau khi build voi tree-shaking.
- [CSV vs JSON - Khi Nao Dung Dinh Dang Du Lieu Nao](https://freetoolonline.com/guides/vi/csv-vs-json-data-formats.html) [lastmod=2026-07-06]
  Dinh dang du lieu CSV vs JSON - khi nao chon hang-va-cot vs doi tuong co cau truc, voi danh doi ve phan tich, kich thuoc va cong cu cho luong 2026.
- [Dao Nguoc Van Ban: Khi Nao Thuc Su Co Ich](https://freetoolonline.com/guides/vi/reverse-text-when.html) [lastmod=2026-07-06]
  Khi nao dao nguoc van ban co ich: kiem tra doc xuoi doc nguoc, chu de doi guong, ma hoa don gian, va so sanh voi bang tinh, rev hoac script.
- [Dau Ra Trinh Trich Xuat Khung GIF Trong Sai? Ba Nguyen Nhan Va Kiem Tra 30 Giay](https://freetoolonline.com/guides/vi/gif-frame-extractor-output-looks-wrong-three-causes.html) [lastmod=2026-07-06]
  Trinh trich xuat khung GIF cho mot khung, khung trong hoac mau la? Ba nguyen nhan - GIF tinh, che do bo do-not-dispose, gioi han bo nho - moi cai voi mot cach khac phuc.
- [Dinh dang anh iPhone giai thich](https://freetoolonline.com/guides/vi/iphone-photo-format-explained-heic-jpg-png-raw.html) [lastmod=2026-07-06]
  Anh iPhone co the la HEIC, JPG, PNG hoac RAW. Day la nhung gi moi dinh dang la, khi iOS su dung no, va dinh dang dung de chuyen doi truoc khi chia se ben ngoai Apple.
- [Dinh Dang Code Tung Buoc: JS, CSS, HTML va JSON](https://freetoolonline.com/guides/vi/code-formatter-beautifier-step-by-step.html) [lastmod=2026-07-06]
  Huong dan tung buoc de dinh dang JavaScript, CSS, HTML va JSON bang cong cu dinh dang code mien phi - dieu moi ngon ngu can va khi nao dung JSON Parser thay the.
- [Dinh dang JSON truc tuyen - khi nao dung](https://freetoolonline.com/guides/vi/json-formatter-when.html) [lastmod=2026-07-06]
  Dinh Dang JSON Truc Tuyen Khi Nao Dung - tham khao nhanh ket hop voi Dinh Dang JSON Truc Tuyen.
- [Dinh dang JSON truc tuyen - tung buoc](https://freetoolonline.com/guides/vi/json-formatter-step-by-step.html) [lastmod=2026-07-06]
  Dinh Dang JSON Truc Tuyen Tung Buoc - tham khao nhanh ket hop voi Dinh Dang JSON Truc Tuyen.
- [Dinh dang JSON truc tuyen vs cac lua chon khac](https://freetoolonline.com/guides/vi/json-formatter-vs-alternatives.html) [lastmod=2026-07-06]
  Dinh Dang JSON Truc Tuyen Vs Cac Lua Chon Khac - tham khao nhanh ket hop voi Dinh Dang JSON Truc Tuyen.
- [Dong Ho Bam Gio Online: Huong Dan Tung Buoc](https://freetoolonline.com/guides/vi/stopwatch-step-by-step.html) [lastmod=2026-07-06]
  Start, Lap, Stop va Reset - xem chinh xac moi nut lam gi va danh sach vong hoat dong ra sao truoc khi ban bam gio.
- [Dong Ho Bao Thuc Online: Huong Dan Tung Buoc](https://freetoolonline.com/guides/vi/alarm-clock-step-by-step.html) [lastmod=2026-07-06]
  Dat gio bao thuc, theo doi thong bao tren man hinh, va xem chinh xac dieu gi xay ra - va khong xay ra - khi bao thuc reo.
- [Dong Ho Dem Nguoc Online: Huong Dan Tung Buoc](https://freetoolonline.com/guides/vi/countdown-timer-step-by-step.html) [lastmod=2026-07-06]
  Dat so phut va giay, bat dau dem nguoc, va xem chinh xac dieu gi xay ra - va khong xay ra - khi ve den khong.
- [Dong Ho Kim Online: Cach Doc Cac Kim](https://freetoolonline.com/guides/vi/analog-clock-step-by-step.html) [lastmod=2026-07-06]
  Xem cach cac kim gio, phut va giay chi thoi gian, vi sao chuyen dong trong muot, va khi nao mot dong ho kim song huu ich.
- [Dong Ho So Online: Cach Doc Man Hinh](https://freetoolonline.com/guides/vi/digital-clock-step-by-step.html) [lastmod=2026-07-06]
  Xem man hinh HH:MM:SS va dong ngay hien thi gi, tan suat cap nhat, va khi nao mot dong ho so lon trong trinh duyet huu ich.
- [FFmpeg Online vs FFmpeg Cuc Bo - Khi Nao Moi Cai Thang](https://freetoolonline.com/guides/vi/ffmpeg-online-vs-local-ffmpeg-when-each-wins.html) [lastmod=2026-07-06]
  FFmpeg online (wasm trinh duyet) vs FFmpeg CLI cuc bo - gioi han kich co, quyen rieng tu, toc do va do bao phu codec. Khi nao chon moi cai cho xu ly video/am thanh.
- [FFmpeg Online vs Video Converter - Mo Cong Cu Nao](https://freetoolonline.com/guides/vi/ffmpeg-online-vs-video-converter-which-to-pick.html) [lastmod=2026-07-06]
  Huong dan dinh tuyen cho tac vu "ffmpeg online": khi nao mo FFmpeg Online va khi nao tuyen duong dac thu Video Converter hoac GIF Maker nhanh hon. Nam quy tac dinh tuyen, mot quyet dinh trong 30 giay.
- [Ghep PDF Online Mien Phi - Gop Nhieu PDF Trong Trinh Duyet](https://freetoolonline.com/guides/vi/merge-pdf-online-free-unlimited.html) [lastmod=2026-07-06]
  Ghep cac tep PDF online mien phi - gop nhieu PDF thanh mot, sap xep lai thu tu truoc khi xuat, roi tai ve. Tuy chon chay trong trinh duyet khong can tai len va khong can tai khoan.
- [Ghi Am Truc Tuyen So Sanh Voi Cac Lua Chon](https://freetoolonline.com/guides/vi/voice-recorder-vs-alternatives.html) [lastmod=2026-07-06]
  Ghi Am Truc Tuyen So Sanh Voi Cac Lua Chon - so sanh Online Voice Recorder voi ung dung may tinh hoac dich vu truc tuyen co tai len.
- [Ghi Am Truc Tuyen Tung Buoc](https://freetoolonline.com/guides/vi/voice-recorder-step-by-step.html) [lastmod=2026-07-06]
  Ghi Am Truc Tuyen Tung Buoc - cac buoc chinh xac de su dung Online Voice Recorder tu khi mo den khi tai ket qua.
- [Giai Ma Hash MD5: Khi Nao Lookup Hoat Dong, Khi Nao Khong](https://freetoolonline.com/guides/vi/md5-hash-decrypt.html) [lastmod=2026-07-06]
  Giai ma hash MD5 - cau hoi thuc te. Tra cuu nguoc hoat dong voi dau vao ngan pho bien co trong rainbow table va tu dien; voi bi mat ngau nhien, vu luc la san.
- [Giai Ma MD5 - Tim Kiem Nguoc va Tao Hash Truc Tuyen](https://freetoolonline.com/guides/vi/md5-decrypter.html) [lastmod=2026-07-06]
  Dung cong cu MD5 mien phi de tao hash, so sanh checksum hoac tim kiem gia tri da biet. Chay tren trinh duyet - khong can tai len, khong can tai khoan.
- [Giai ma MD5 online: tai sao ban khong the, va cach lam thuc te](https://freetoolonline.com/guides/vi/md5-decrypt-online.html) [lastmod=2026-07-06]
  MD5 la mot chieu - khong the giai ma. Day la y nghia thuc su cua "giai ma MD5 online" va cach an toan de tra cuu hash MD5 da biet. Cap nhat lan cuoi 2026-05-18.
- [Giai Ma MD5: nguoi doc thuong muon gi va di den dau](https://freetoolonline.com/guides/vi/md5-decode.html) [lastmod=2026-07-06]
  Huong dan giai ma MD5: MD5 la mot chieu, nen "giai ma" thuong co nghia la tao hash, tra cuu mot plaintext da biet, hoac chon mot hash khac. Loi di den cong cu dung.
- [Giam Kich Thuoc Tep ZIP Truc Tuyen - Huong Dan Mien Phi Tren Trinh Duyet](https://freetoolonline.com/guides/vi/reduce-zip-file-size-online.html) [lastmod=2026-07-06]
  Thu nho mot kho luu tru ZIP trong trinh duyet - cai gi thuc su tiet kiem byte, cai gi khong, va lam sao dat duoc gioi han 25 MB email ma khong chia tep.
- [Giam Kich Thuoc ZIP - khi nao nen ZIP thuc su thu nho kho luu tru](https://freetoolonline.com/guides/vi/zip-size-reducer.html) [lastmod=2026-07-06]
  Mot huong dan dinh huong doc gia ve viec su dung mot bo giam kich thuoc ZIP: khi nao nen ZIP thuc su tiet kiem dung luong, khi nao khong, va bo tao ZIP trinh duyet o dau. Cap nhat lan cuoi: 2026-05-17.
- [GIF thanh Frame: Luu moi khung hinh hoat anh thanh PNG hoac JPG](https://freetoolonline.com/guides/vi/gif-into-frames.html) [lastmod=2026-07-06]
  Bien mot GIF thanh cac frame rieng le online. Tai len hoat anh, chon PNG hoac JPG, va tai xuong moi frame nhu mot anh tinh. Mien phi, khong cai dat. Cap nhat lan cuoi: 2026-05-20.
- [GIF Thanh Khung - trich xuat moi khung thanh PNG hoac JPG](https://freetoolonline.com/guides/vi/gif-to-frame.html) [lastmod=2026-07-06]
  Tai len GIF dong va trich xuat tung khung thanh PNG hoac JPG. Khong can cai dat. Tep tu dong xoa sau khi tai. Xem lai 2026-06-10.
- [HEIC sang JPG: cong cu chuyen doi thuc su lam gi](https://freetoolonline.com/guides/vi/heic-to-jpg-claims-what-actually-works.html) [lastmod=2026-07-06]
  /heic-to-jpg.html thuc su hoat dong nhu the nao: giai ma libheif, ma hoa lai JPG, dieu khien EXIF + chat luong, cong cac tuyen bo ma cong cu KHONG dua ra. Doc truoc khi tai len.
- [HEIC vs JPG vs WebP](https://freetoolonline.com/guides/vi/heic-vs-jpg-vs-webp.html) [lastmod=2026-07-06]
  Anh iPhone la HEIC; Windows va Android mong doi JPG. Moi dinh dang nen tot dieu gi, khi nao WebP la lua chon dung cho web va cach chuyen doi giua chung.
- [Hinh Anh sang Base64 - Nhung trong HTML/CSS vs Lien Ket Tep Anh](https://freetoolonline.com/guides/vi/image-to-base64-embed-in-html-vs-link.html) [lastmod=2026-07-06]
  Ban nen nhung mot hinh anh duoi dang URL du lieu base64 trong HTML/CSS, hay lien ket tep hinh anh? Mot quy tac quyet dinh thuc te voi cac nguong byte cu the, trade-off cache va HTTP/2, va kiem tra tinh tao trong 30 giay.
- [Huong Dan Kiem Tra Diem Anh Chet](https://freetoolonline.com/guides/vi/dead-pixel-testing-guide.html) [lastmod=2026-07-06]
  Huong dan kiem tra diem anh chet - diem anh chet vs ket vs nong, kiem tra mau toan man hinh, cac buoc khoi phuc, va khi nao viec thay the bao hanh la chinh dang.
- [ImageMagick Online vs Cong Cu Chuyen Biet - Chon Cai Nao](https://freetoolonline.com/guides/vi/imagemagick-online-vs-task-specific-tools-which-to-pick.html) [lastmod=2026-07-06]
  Huong dan dinh tuyen: khi nao mo ImageMagick Online va khi nao cong cu chuyen biet (Crop, Resize, Compress, HEIC to JPG) la duong nhanh hon. Nam quy tac, mot quyet dinh trong 30 giay.
- [JPG Da Nen Trong Mo? Ba Nguyen Nhan (va Cach Khac Phuc Nhanh)](https://freetoolonline.com/guides/vi/compressed-jpg-looks-blurry-three-causes.html) [lastmod=2026-07-06]
  JPG trong mo sau khi nen? Ba nguyen nhan pho bien - chat luong qua thap, ma hoa lai nhieu lan, nguon upscaled - moi cai co cach khac phuc nhanh.
- [JPG va PNG cho web](https://freetoolonline.com/guides/vi/jpg-vs-png-for-web.html) [lastmod=2026-07-06]
  JPG va PNG cho hinh anh web - khi nen co mat thang the, khi lossless + trong suot quan trong, va WebP thay doi phep tinh nhu the nao trong 2026.
- [JPG vs JPEG - co giong nhau khong?](https://freetoolonline.com/guides/vi/jpg-vs-jpeg-are-they-the-same.html) [lastmod=2026-07-06]
  JPG va JPEG la cung mot dinh dang anh. Hai phan mo rong ton tai vi mot gioi han ba ky tu cu cua Windows. Day la cau chuyen va ten nao nen chon.
- [JSON Parser Online: Kiem Tra vs Dinh Dang vs Vista Cay - Tinh Nang Nao Ban Can](https://freetoolonline.com/guides/vi/json-parser-validate-vs-format-vs-tree-view.html) [lastmod=2026-07-06]
  Kiem tra, dinh dang, hay kham pha JSON? Huong dan 30 giay de chon dung tinh nang con cua parser JSON mien phi tai freetoolonline.com - trong trinh duyet.
- [JSON vs YAML vs TOML, Giai Thich](https://freetoolonline.com/guides/vi/json-vs-yaml-vs-toml-config-formats-explained.html) [lastmod=2026-07-06]
  Ba dinh dang cau hinh, ba kieu ergonomic. JSON cho may, YAML cho con nguoi, TOML cho cau hinh nong. Cac danh doi quyet dinh du an cua ban can gi.
- [Khi Nao Dung Cong Cu Xao Tron Danh Sach Ngau Nhien](https://freetoolonline.com/guides/vi/random-list-shuffler-when.html) [lastmod=2026-07-06]
  Khi nao mot cong cu xao tron danh sach ngau nhien phu hop: thu tu luot choi, phan cong nhiem vu, danh sach ve so - va khi nao nen dung cong cu chon mot nguoi thang thay vao do.
- [Khi Nao Dung Ghi Am Truc Tuyen](https://freetoolonline.com/guides/vi/voice-recorder-when.html) [lastmod=2026-07-06]
  Khi Nao Dung Ghi Am Truc Tuyen - khi nao mo Online Voice Recorder la phu hop va nhung gi xay ra khi su dung.
- [Khi Nao Nen Dung May Tinh Phan Tram](https://freetoolonline.com/guides/vi/percentage-calculator-when.html) [lastmod=2026-07-06]
  May Tinh Phan Tram: khi nao nen dung Percentage Calculator va nhung gi can mong doi khi day la cong cu phu hop.
- [Khoi Phuc Mat Khau ZIP Online - cai gi hoat dong (va cai gi khong)](https://freetoolonline.com/guides/vi/zip-password-recovery-online.html) [lastmod=2026-07-06]
  Huong dan khoi phuc mat khau ZIP online: bo go online co the va khong the lam gi, cung ba duong di hoat dong khi ban quen mat khau ZIP. Lan ra soat cuoi 2026-05-18.
- [Khoi Phuc Tep Zip Bi Hong - Cac Lua Chon](https://freetoolonline.com/guides/vi/recover-corrupt-zip-file-options.html) [lastmod=2026-07-06]
  Cac duong di thuc te cho mot tep zip khong mo: tai lai, giai nen mot phan, cong cu sua chua, va khi nao dau hang. Cai gi hoat dong, cai gi khong, cai gi thu truoc.
- [Khung Hinh GIF vs Toc Do Khung Hinh GIF (FPS): Cai Nao Ban Thuc Su Can?](https://freetoolonline.com/guides/vi/gif-frames-extract-vs-frame-rate-fps-explained.html) [lastmod=2026-07-06]
  Khung hinh GIF la cac hinh anh tinh ben trong GIF dong; toc do khung hinh GIF (FPS) la toc do phat lai. Huong dan nay noi voi ban cai nao phu hop voi nhiem vu trong mot cau va cach chon FPS dung khi trich xuat khung hinh.
- [Kiem Tra Ban Phim - Rollover vs Anti-Ghosting](https://freetoolonline.com/guides/vi/keyboard-tester-online-rollover-vs-anti-ghosting.html) [lastmod=2026-07-06]
  N-key rollover va anti-ghosting la hai tinh nang khac nhau cua ban phim. Mot bai kiem tra trong trinh duyet hien thi ca hai. Bam gi, tim gi, ket qua nghia la gi.
- [Kiem Tra Camera - Y Nghia va Cong Cu Can Dung](https://freetoolonline.com/guides/vi/camera-check.html) [lastmod=2026-07-06]
  Kiem tra camera la tu dong nghia hang ngay cua "test camera": quy trinh trong trinh duyet yeu cau he dieu hanh cap luong webcam, hien xem truoc va xac nhan ong kinh mo.
- [Kiem Tra Camera Truoc - Kiem Tra Camera Selfie Truc Tuyen](https://freetoolonline.com/guides/vi/front-camera-test.html) [lastmod=2026-07-06]
  Kiem tra camera truoc truc tuyen: mo ong kinh selfie, xem ban xem truoc truc tiep, chuyen giua camera truoc va sau, va chup mot anh JPEG - tat ca trong trinh duyet. Da soat xet 2026-06-10.
- [Kiem tra diem chet truoc khi tra lai man hinh](https://freetoolonline.com/guides/vi/how-to-test-for-dead-pixels-before-returning-a-monitor.html) [lastmod=2026-07-06]
  Cach kiem tra diem chet truoc khi tra lai man hinh - kiem tra mau toan man hinh, diem ket vs diem chet, bang chung bao hanh, va dieu nha san xuat chap nhan.
- [Kiem tra LCD - huong dan test man hinh LCD](https://freetoolonline.com/guides/vi/lcd-test-online.html) [lastmod=2026-07-06]
  Huong dan kiem tra LCD: cach test man hinh LCD online, mien phi tren trinh duyet. Tung buoc, khong can cai dat. Cap nhat lan cuoi: 2026-05-13.
- [Kiem Tra LCD Cho Man Hinh Laptop - Kiem Tra Diem Anh Chet va Mau](https://freetoolonline.com/guides/vi/lcd-test-laptop.html) [lastmod=2026-07-06]
  Kiem tra LCD laptop de tim diem anh chet, diem anh ket va ho sang nen - chuyen lan luot mau do, xanh la, xanh duong, den va trang toan man hinh ngay trong trinh duyet.
- [Kiem tra LCD vs kiem tra display vs kiem tra monitor - cai nao?](https://freetoolonline.com/guides/vi/lcd-test-vs-display-test-which-do-you-need.html) [lastmod=2026-07-06]
  Ba ten goi, ba bo kiem tra khac nhau. Kiem tra LCD = pixel tam nen va do dong deu. Kiem tra display = tam nen + duong di tin hieu. Kiem tra monitor = tam nen + tin hieu + cong + scale. Khi nao chay cai nao, va cong cu dung de bat dau.
- [Kiem Tra LCD: Cach Phat Hien Dead Pixel Man Hinh Online - Free Tool Online](https://freetoolonline.com/guides/vi/tes-lcd.html) [lastmod=2026-07-06]
  Kiem tra LCD online: phat hien dead pixel, stuck pixel va backlight bleed bang sau mau hien thi toan man hinh (do, xanh la, xanh duong, den, trang, vang) trong trinh duyet. Last reviewed: 2026-05-18.
- [Kiem tra LCD: Chon cong cu kiem tra man hinh dung](https://freetoolonline.com/guides/vi/test-lcd.html) [lastmod=2026-07-06]
  Kiem tra LCD, test LCD hoac bo kiem tra LCD deu anh xa den mot cong viec: kiem tra man hinh cua ban xem co pixel chet, mau va den nen trong trinh duyet. Chon cong cu dung tai day.
- [Kiem Tra LED vs Kiem Tra LCD: Cai Nao Ap Dung Cho Man Hinh Cua Ban?](https://freetoolonline.com/guides/vi/led-test-vs-lcd-test-which-applies-to-your-screen.html) [lastmod=2026-07-06]
  LED la den nen; LCD la panel. Tren hau het man hinh hien dai, ca hai ten goi cung mot phan cung - mot chu ky mau toan man hinh tra loi duoc ca hai truy van.
- [Kiem tra LED: cach test man hinh laptop hoac dien thoai](https://freetoolonline.com/guides/vi/led-test.html) [lastmod=2026-07-06]
  Kiem tra man hinh LED de tim pixel ket, pixel chet va ho sang. Ve sau mau toan man hinh trong trinh duyet. Khong cai dat, mien phi.
- [Kiem Tra Man Hinh Cho Laptop - Checklist 5 Phut](https://freetoolonline.com/guides/vi/screen-test-for-laptop-5-minute-checklist.html) [lastmod=2026-07-06]
  Nam buoc kiem tra man hinh nhanh cho laptop ban vua mua hoac sap tra lai - pixel chet, do sang pin vs sac, doi mau IPS, choi sang, ti le hien thi. Hai phut moi buoc.
- [Kiem tra man hinh LCD - huong dan online](https://freetoolonline.com/guides/vi/lcd-screen-test.html) [lastmod=2026-07-06]
  Huong dan kiem tra man hinh LCD: chay kiem tra pixel chet va do dong nhat mau mien phi tren trinh duyet. Tung buoc, khong cai dat. Cap nhat lan cuoi: 2026-05-20.
- [Kiem tra man hinh online vs app: cai nao chinh xac hon?](https://freetoolonline.com/guides/vi/screen-test-online-vs-app-which-is-more-accurate.html) [lastmod=2026-07-06]
  Bai kiem tra man hinh tren trinh duyet phat hien loi tam nen (pixel chet, do dong deu, ro ri) trong hai phut. App ban dia tiep can tan so quet, HDR va kiem tra ICC. Nen bat dau bang cai nao.
- [Kiem tra man hinh vs kiem tra camera - cai nao ban thuc su can?](https://freetoolonline.com/guides/vi/screen-test-vs-camera-test-pick-the-right-tool.html) [lastmod=2026-07-06]
  Pixel ket hoac ro sang vien: kiem tra man hinh. Webcam khong khoi dong duoc hoac anh nguoc dau: kiem tra camera. Chon dung cong cu kiem tra thiet bi tren freetoolonline.com.
- [Kiem Tra Microphone Khong Co Am Thanh: 4 Cach Khac Phuc Thuc Su](https://freetoolonline.com/guides/vi/microphone-test-no-sound-four-fixes.html) [lastmod=2026-07-06]
  Kiem tra microphone hien khong co am thanh hoac song phang? Bon nguyen nhan - quyen, OS tat tieng, ung dung giu thiet bi, tat tieng phan cung - va mot cach sua mot phut moi nguyen nhan.
- [Kiem Tra Microphone Online - Kiem Tra Gi](https://freetoolonline.com/guides/vi/microphone-test-online-what-it-actually-checks.html) [lastmod=2026-07-06]
  Kiem tra microphone trong trinh duyet xac nhan microphone duoc chon, thu am va khop voi muc am thanh mong doi. Cai khong kiem tra duoc va di dau ke tiep.
- [Kiem Tra OLED vs Kiem Tra LCD: Co Gi Khac Tren Tam Nen OLED](https://freetoolonline.com/guides/vi/oled-test-vs-lcd-test-what-changes-on-oled.html) [lastmod=2026-07-06]
  Tam nen OLED can mot bai kiem tra khac voi LCD: khong co ro ri den nen de tim, nhung burn-in va luu hinh moi la van de. Huong dan nay giai thich nhung gi thay doi khi man hinh la OLED.
- [Kiem Tra Webcam Va Microphone Truoc Cuoc Phong Van](https://freetoolonline.com/guides/vi/how-to-check-webcam-and-microphone-before-an-interview.html) [lastmod=2026-07-06]
  Kiem tra webcam va microphone truoc cuoc phong van - kiem tra trinh duyet 5 phut cho camera, muc microphone, anh sang va do tre. Khong cai dat, khong tai len.
- [Lien Ket Tai Xuong Khong Xuat Hien Sau Khi Chuyen Doi - 5 Cach Khac Phuc](https://freetoolonline.com/guides/vi/download-link-not-appearing-after-conversion-five-fixes.html) [lastmod=2026-07-06]
  Tai len hoan thanh nhung lien ket tai xuong khong bao gio xuat hien? Nam nguyen nhan va cach khac phuc cu the cho cong cu chuyen doi truc tuyen - theo thu tu kha nang.
- [Mat khau MD5: cach hash mot mat khau va khi nao MD5 la sai](https://freetoolonline.com/guides/vi/md5-password.html) [lastmod=2026-07-06]
  Huong dan mat khau MD5: dan mot chuoi mat khau, nhan dau van tay 32-hex, va biet khi nao MD5 an toan cho checksums va khi nao bcrypt hoac argon2id la lua chon dung.
- [Mat Khau PDF - Chu So Huu vs Nguoi Dung](https://freetoolonline.com/guides/vi/pdf-password-types-owner-vs-user.html) [lastmod=2026-07-06]
  Cac loai mat khau PDF - mat khau chu so huu vs nguoi dung, moi loai chan gi, khi nao dat tung loai, cach chon mat khau bao ve duoc tai lieu.
- [May Tinh Phan Tram So Voi Cac Lua Chon Khac](https://freetoolonline.com/guides/vi/percentage-calculator-vs-alternatives.html) [lastmod=2026-07-06]
  May Tinh Phan Tram so voi cac lua chon khac - Percentage Calculator so sanh nhu the nao voi bang tinh hoac dich vu truc tuyen yeu cau tai len.
- [May Tinh Phan Tram Tung Buoc](https://freetoolonline.com/guides/vi/percentage-calculator-step-by-step.html) [lastmod=2026-07-06]
  May Tinh Phan Tram tung buoc - cac buoc chinh xac de dung Percentage Calculator tu dau den khi co ket qua.
- [MD5 sang van ban - vi sao ban khong the chuyen nguoc lai (va phai lam gi)](https://freetoolonline.com/guides/vi/md5-to-text-why-you-cannot-convert-back.html) [lastmod=2026-07-06]
  Mot chuoi MD5 32 ky tu la mot dau van tay mot chieu - khong the chuyen nguoc thanh van ban da tao ra no. Huong dan nay giai thich vi sao, va dua ra ba hanh dong thuc su hoat dong: xac minh mot chuoi da biet, tim mot hash dau vao pho bien, hoac chon mot hash khac cho cong viec.
- [MD5 vs SHA-256 - Khi Nao Dung Cai Nao](https://freetoolonline.com/guides/vi/md5-vs-sha256-when-to-hash.html) [lastmod=2026-07-06]
  MD5 vs SHA-256 - toc do, kha nang khang va cham, va cac truong hop su dung cu the. Khi nao fingerprinting la du, khi nao do manh ma hoa quan trong.
- [Mengecilkan Ukuran Zip Online - Huong Dan Mien Phi](https://freetoolonline.com/guides/vi/mengecilkan-ukuran-zip.html) [lastmod=2026-07-06]
  Tim hieu cach mengecilkan ukuran zip online: chon tep, nen, va tai ve mot kho luu tru nho hon ngay trong trinh duyet. Tung buoc, khong can cai dat. Da soat xet lan cuoi 2026-06-19.
- [Metadata EXIF va Nen Anh: Cai Gi Bi Loai Bo](https://freetoolonline.com/guides/vi/image-compression-and-exif-metadata-what-gets-stripped.html) [lastmod=2026-07-06]
  Nen anh thuong loai bo metadata EXIF - GPS, may anh, dau thoi gian. Cai gi cac bo ma hoa loai bo theo mac dinh, khi nao nen giu, va khi nao nen loai bo co chu y.
- [Mili Giay Sang Ngay - doc mot mili giay epoch nhu mot ngay](https://freetoolonline.com/guides/vi/millisecond-to-date.html) [lastmod=2026-07-06]
  Dan vao gia tri mili giay epoch 13 chu so va doc lai duoi dang ngay con nguoi. Chay trong trinh duyet, khong upload, khong tai khoan. Cap nhat lan cuoi 2026-05-20.
- [Mili giay sang ngay: UTC vs gio dia phuong, vi sao co the trong sai](https://freetoolonline.com/guides/vi/milliseconds-to-date-utc-vs-local-time.html) [lastmod=2026-07-06]
  Chuyen doi mili giay sang ngay: UTC vs gio dia phuong, vi sao ket qua co the lech vai gio, va cach xac minh gia tri nao dung. Trong trinh duyet, mien phi.
- [Millis Hien Tai: Hien Thi Dau Thoi Gian Unix Hien Tai Bang Mili Giay](https://freetoolonline.com/guides/vi/current-millis.html) [lastmod=2026-07-06]
  Millis hien tai nghia la ket qua Date.now() tra ve ngay bay gio - mot so nguyen 13 chu so dem mili giay tu epoch Unix. Cach doc, sao chep va chuyen doi nguoc thanh ngay de doc.
- [Minify CSS va JS cho Cold Start](https://freetoolonline.com/guides/vi/how-to-minify-css-js-for-cloud-run-cold-start.html) [lastmod=2026-07-06]
  Minify CSS va JS de giam cold-start cua Cloud Run va kich thuoc bundle cua Cloudflare Workers. Cong cu, build flag va loi ich do duoc ve do tre.
- [Mo khoa tep ZIP truc tuyen - huong dan](https://freetoolonline.com/guides/vi/unlock-zip-file-online.html) [lastmod=2026-07-06]
  Mo khoa mot tep ZIP truc tuyen: chon tuyen duong cho ZIP duoc bao ve bang mat khau vs ZIP thuong, chay cong cu phu hop mien phi tren trinh duyet. Cap nhat lan cuoi: 2026-05-20.
- [MP4 vs MOV vs MKV - Chon Container Nao Khi Nao](https://freetoolonline.com/guides/vi/mp4-vs-mov-vs-mkv-which-container-when.html) [lastmod=2026-07-06]
  So sanh ba container video. MP4 dung khap noi, MOV cho luong Apple, MKV de luu tru voi nhieu track. Quy tac ro rang de chon va chuyen doi.
- [MP4 vs WebM cho Web](https://freetoolonline.com/guides/vi/mp4-vs-webm-for-web.html) [lastmod=2026-07-06]
  MP4 phat tren moi trinh duyet; WebM nho hon 20-30 phan tram tren cac trinh duyet hien dai. Bang quyet dinh, mau fallback va khi nao moi container dang gia.
- [ms sang ngay - dan timestamp 13 chu so mili giay, doc lai ngay local](https://freetoolonline.com/guides/vi/ms-to-date.html) [lastmod=2026-07-06]
  Huong dan "ms sang ngay": dan timestamp Unix mili giay 13 chu so, doc lai ngay local tuong ung va gio 24 gio. 10 chu so? Nhan 1000 truoc.
- [Muc Kiem Tra Microphone: Yen Tinh, Binh Thuong va Peak Co Nghia La Gi](https://freetoolonline.com/guides/vi/microphone-test-online-quiet-normal-peak-meter.html) [lastmod=2026-07-06]
  Doc dong ho muc kiem tra microphone trinh duyet bang tieng Viet don gian: yen tinh trong nhu the nao, audio binh thuong san sang cho cuoc goi la gi, va khi nao cac peak co nghia clipping.
- [Nen JPEG Khong Mat Chat Luong: Chat Luong vs Kich Thuoc](https://freetoolonline.com/guides/vi/compress-jpeg-without-losing-quality-quality-vs-size.html) [lastmod=2026-07-06]
  Chon cai dat chat luong JPEG phu hop: khi nao 75 trong giong ban goc, khi nao 95 lang phi byte, va khi nao nen tu dong AI vuot ca hai.
- [Nen Kich Thuoc ZIP: Tep Luu Tru Se Nho Hon Bao Nhieu Thuc Te?](https://freetoolonline.com/guides/vi/compress-zip-size.html) [lastmod=2026-07-06]
  Nen ZIP co the giam bao nhieu kich thuoc thu muc? Phuong phap uoc luong do nen cong voi duong dan trong trinh duyet den trinh tao. Mien phi, khong can cai dat. Cap nhat 2026-05-15.
- [Nen Mot Thu Muc Cho Email](https://freetoolonline.com/guides/vi/how-to-compress-a-folder-for-email.html) [lastmod=2026-07-06]
  Nen mot thu muc cho email trong duoi mot phut. Tung buoc cho Windows va macOS, luu y kich co email vao nam 2026 va khi nao them mat khau truoc khi chia se.
- [Nen PDF Online Mien Phi - Giam Kich Thuoc PDF](https://freetoolonline.com/guides/vi/compress-pdf-online-free.html) [lastmod=2026-07-06]
  Lam nho PDF mien phi truc tuyen: lam phang tep nhieu bieu mau hoac trich xuat-nen-dung lai PDF quet bang cong cu cua chung toi. Khong can tai khoan. Da xem xet 2026-06-11.
- [Nen tep ZIP nho hon: khi nao kho luu tru thuc su thu nho](https://freetoolonline.com/guides/vi/compress-zip-file-to-smaller-size.html) [lastmod=2026-07-06]
  Huong dan thuc te de lam tep ZIP nho hon: dau vao nao thuc su thu nho, dau vao nao khong, va cong cu trinh duyet xay dung kho luu tru. Cap nhat lan cuoi: 2026-05-17.
- [Nen Tep Zip Truc Tuyen - Huong dan day du trong trinh duyet](https://freetoolonline.com/guides/vi/kompres-file-zip.html) [lastmod=2026-07-06]
  Huong dan nen tep zip truc tuyen trong trinh duyet. Goi cac tep va thu muc thanh mot kho luu tru .zip, them mat khau tuy chon, tai xuong trong vai giay. Mien phi, khong cai dat.
- [Nen Thu Muc Truc Tuyen - mien phi, dua tren trinh duyet, khong cai dat](https://freetoolonline.com/guides/vi/compress-folder-online.html) [lastmod=2026-07-06]
  Cach nen thu muc truc tuyen: keo thu muc, dich vu dong goi thanh mot .zip, tai ve. Dua tren trinh duyet, khong cai dat, mat khau tuy chon. Cap nhat 2026-05-24.
- [Nen vs Chuyen Doi Mot Anh](https://freetoolonline.com/guides/vi/when-to-compress-vs-convert-an-image.html) [lastmod=2026-07-06]
  Nen hay chuyen doi mot anh? Cau tra loi trong 30 giay - quy tac quyet dinh ve kich thuoc tep, lua chon dinh dang, danh doi chat luong, va cong cu dung cho moi cong viec.
- [Nen ZIP - huong dan nen zip](https://freetoolonline.com/guides/vi/zip-compress.html) [lastmod=2026-07-06]
  Huong dan nen ZIP: khi nao ZIP thu nho tep, khi nao khong, va cach gop mot thu muc vao mot kho luu tru online. Mien phi, khong cai dat. Cap nhat lan cuoi: 2026-05-18.
- [Nen Zip - Khi nao kho luu tru thu nho kich thuoc](https://freetoolonline.com/guides/vi/kompres-zip.html) [lastmod=2026-07-06]
  Huong dan nen zip: khi nao dinh dang .zip thuc su thu nho kich thuoc, khi nao khong, va noi cong cu tao kho luu tru o trong trinh duyet. Mien phi, khong cai dat.
- [Nen ZIP: khi nao nen ZIP tiet kiem dung luong (va khi nao khong)](https://freetoolonline.com/guides/vi/compress-zip.html) [lastmod=2026-07-06]
  Mot huong dan ngan dinh huong doc gia ve nen tep thanh ZIP: khi nao nen ZIP thuc su tiet kiem dung luong, khi nao khong, va bo tao ZIP trong trinh duyet o dau.
- [Noi Chuyen Thanh Van Ban Khi Nao Nen Dung](https://freetoolonline.com/guides/vi/speech-text-when.html) [lastmod=2026-07-06]
  Noi Chuyen Thanh Van Ban Khi Nao Nen Dung - khi nao nen dung Noi Chuyen Thanh Van Ban va dieu gi se xay ra.
- [Noi Chuyen Thanh Van Ban So Sanh](https://freetoolonline.com/guides/vi/speech-text-vs-alternatives.html) [lastmod=2026-07-06]
  Noi Chuyen Thanh Van Ban So Sanh - so sanh Noi Chuyen Thanh Van Ban voi ung dung may tinh de ban hoac dich vu tai len.
- [Noi Chuyen Thanh Van Ban Tung Buoc](https://freetoolonline.com/guides/vi/speech-text-step-by-step.html) [lastmod=2026-07-06]
  Noi Chuyen Thanh Van Ban Tung Buoc - cac buoc chinh xac de su dung Noi Chuyen Thanh Van Ban tu dau den ket qua tai xuong.
- [PDF sang Text Online: Trich Xuat Van Ban Mien Phi, Khong Cai Dat](https://freetoolonline.com/guides/vi/pdf-to-text-online-i-love-pdf.html) [lastmod=2026-07-06]
  Trich xuat van ban tu file PDF online, mien phi va ngay trong trinh duyet. Sao chep hoac tai ket qua duoi dang .txt. Hoat dong voi PDF co van ban nhung; trang scan can OCR truoc.
- [PDF vs HEIC Cho Luu Tru](https://freetoolonline.com/guides/vi/pdf-vs-heic-for-document-archival.html) [lastmod=2026-07-06]
  PDF vs HEIC cho luu tru tai lieu - cai nao bao toan hoa don, ID va bieu mau lau dai. Su danh doi kich thuoc, kha nang tim kiem va ho tro cong cu cho 2026.
- [Phim Khong Phat Hien Trong Kiem Tra Ban Phim: 4 Cach Khac Phuc](https://freetoolonline.com/guides/vi/keyboard-test-keys-not-detected-four-fixes.html) [lastmod=2026-07-06]
  Kiem tra ban phim khong sang mot so phim? Bon nguyen nhan - focus, layout he dieu hanh, bo loc sticky keys, cong tac phan cung - va cach sua mot phut cho moi loai.
- [PNG sang SVG - khi nao vector hoa anh raster](https://freetoolonline.com/guides/vi/png-to-svg-when-to-vectorize-a-raster-image.html) [lastmod=2026-07-06]
  PNG sang SVG online - tu dong vet pixel raster thanh duong dan vector. Doc khi nao vector hoa hoat dong (logo, icon, line art) va khi nao khong (anh chup).
- [PNG vs SVG - Khi Nao Dung Cai Nao](https://freetoolonline.com/guides/vi/png-vs-svg-when-to-use.html) [lastmod=2026-07-06]
  PNG vs SVG - raster vs vector, khi nao chon cai nao cho logo, icon, UI va anh, voi duong chuyen doi chinh xac va su danh doi hieu nang.
- [Preflight PDF online: kiem tra gi thuc su (va khong kiem tra gi)](https://freetoolonline.com/guides/vi/pdf-preflight-online-what-it-actually-checks.html) [lastmod=2026-07-06]
  Preflight PDF online kiem tra tuan thu luu tru PDF/A - khong sua loi, khong chung nhan in PDF/X, khong sua PDF hong. Huong dan 30 giay chon cong cu truoc khi upload.
- [Quet Ma QR - Khi Nao Nen Dung](https://freetoolonline.com/guides/vi/qr-code-scanner-when.html) [lastmod=2026-07-06]
  Cong cu Quet Ma QR - khi nao phu hop va nhung gi can chu y khi dung.
- [Quet Ma QR - Tung Buoc](https://freetoolonline.com/guides/vi/qr-code-scanner-step-by-step.html) [lastmod=2026-07-06]
  Cong cu Quet Ma QR - tung buoc tu mo cong cu den lay ket qua.
- [Quet Ma QR vs Cac Lua Chon Khac](https://freetoolonline.com/guides/vi/qr-code-scanner-vs-alternatives.html) [lastmod=2026-07-06]
  Cong cu Quet Ma QR so voi ung dung may tinh hoac dich vu truc tuyen can tai len.
- [Quyen Kiem Tra Microphone Bi Chan: Cach Cho Phep Truy Cap Mic Trong Trinh Duyet](https://freetoolonline.com/guides/vi/microphone-test-permission-blocked-how-to-allow-it.html) [lastmod=2026-07-06]
  Kiem tra microphone hien dong ho phang hoac khong co nhac quyen? Cho phep truy cap mic trong Chrome, Firefox, Safari va Edge - duong dan nhap chinh xac theo tung trinh duyet, va bi chan vs bi bo qua trong nhu the nao.
- [Quyen Test Camera Bi Chan: Cach Cho Phep Truy Cap Camera Trong Trinh Duyet](https://freetoolonline.com/guides/vi/camera-test-permission-blocked-how-to-allow-it.html) [lastmod=2026-07-06]
  Test camera khong hien gi hoac khong hoi quyen? Cho phep truy cap webcam tren Chrome, Firefox, Safari va Edge - duong dan chinh xac cho tung trinh duyet, cong voi cach phan biet bi chan vs bo qua.
- [Sap Xep Dong Van Ban Tung Buoc: Sap Xep Danh Sach Ngay Trong Trinh Duyet](https://freetoolonline.com/guides/vi/sort-text-lines-step-by-step.html) [lastmod=2026-07-06]
  Huong dan tung buoc ve cong cu mien phi Sort Text Lines: cach sap xep danh sach A-Z hoac Z-A, cach quyet dinh thu tu va vi sao so duoc sap xep nhu van ban.
- [So Dai Nay Co Phai La Timestamp? Mili Giay vs Giay](https://freetoolonline.com/guides/vi/long-number-millisecond-or-second.html) [lastmod=2026-07-06]
  Mot so duoc dan 10, 13, 16 hoac 19 chu so co the la giay Unix, mili giay, micro giay, nano giay hoac chi la mot ID - day la cach biet nhanh.
- [Sua loi QR code va that bai quet](https://freetoolonline.com/guides/vi/qr-code-error-correction-and-scan-failures.html) [lastmod=2026-07-06]
  Neu QR code khong quet duoc, nguyen nhan thuong la mot trong bon: kich thuoc payload, muc sua loi, do tuong phan, hoac ty le in. Xem cai nao va cach sua.
- [SVG sang PNG - khi nao rasterize](https://freetoolonline.com/guides/vi/svg-to-png-when-to-rasterize-an-svg.html) [lastmod=2026-07-06]
  Hau het SVG nen giu vector. Cac ngoai le: phan mem cu khong xu ly SVG, preview chia se mang xa hoi, ung dung email. Khi nao va cach rasterize sach se.
- [Tach GIF Thanh Cac Khung Truc Tuyen - trich xuat moi khung hinh](https://freetoolonline.com/guides/vi/split-gif-into-frames.html) [lastmod=2026-07-06]
  Huong dan Tach GIF Thanh Cac Khung: trich xuat moi khung hinh dong nhu mot hinh anh rieng biet, trong trinh duyet, khong cai dat. Tung buoc, mien phi. Cap nhat lan cuoi 2026-05-14.
- [Tach PDF Online Mien Phi](https://freetoolonline.com/guides/vi/split-pdf-online-free.html) [lastmod=2026-07-06]
  Tach PDF online mien phi: trich xuat mot khoang trang thanh mot file moi, hoac tach moi trang thanh PDF rieng. Khong can tai khoan, khong cai dat. Da soat xet 2026-06-14.
- [Tai Sao HEIC Khong Mo Tren Windows - Ba Cach Khac Phuc Nhanh](https://freetoolonline.com/guides/vi/why-heic-wont-open-on-windows-three-fixes.html) [lastmod=2026-07-06]
  Khi Windows bao khong mo duoc tep .heic, ba cach nhanh hieu qua: cai dat tien ich HEIF mien phi, dung trinh xem mien phi, hoac chuyen sang JPG online.
- [Tai Sao MD5 Khong The Giai Ma](https://freetoolonline.com/guides/vi/why-md5-cannot-be-decrypted.html) [lastmod=2026-07-06]
  MD5 la mot ham bam mot chieu, khong phai ma hoa, nen khong co khoa giai ma. Cong cu md5-decrypt thuc su lam gi, tai sao MD5 khong an toan cho mat khau, va dung gi thay the.
- [Tao Mat Khau Tung Buoc: Tao Mat Khau Manh Ngay Trong Trinh Duyet](https://freetoolonline.com/guides/vi/password-generator-step-by-step.html) [lastmod=2026-07-06]
  Huong dan tung buoc cho Password Generator mien phi: dat do dai, chon bo ky tu, doc nhan do manh va sao chep mot mat khau ngau nhien manh - tat ca trong trinh duyet.
- [Tao So Ngau Nhien Online: Huong Dan Tung Buoc](https://freetoolonline.com/guides/vi/random-number-generator-step-by-step.html) [lastmod=2026-07-06]
  Huong dan tung buoc cong cu Tao So Ngau Nhien Online: cach dat Min va Max, doc ket qua, va khac gi so voi dice roller va coin flip.
- [Tao Tep ZIP Truc Tuyen - cong cu lam gi va khi nao ZIP tiet kiem khong gian](https://freetoolonline.com/guides/vi/make-zip-file-online.html) [lastmod=2026-07-06]
  Tao tep ZIP truc tuyen: khi nao ZIP that su tiet kiem khong gian, khi nao khong, va cach gui cac tep hoac mot thu muc nhu mot ban tai xuong duy nhat. Mien phi, khong cai dat.
- [Tao Tep Zip Truc Tuyen (Trinh Tao ZIP Mien Phi, Khong Cai Dat, Khong Tai Khoan)](https://freetoolonline.com/guides/vi/create-zip-file-online.html) [lastmod=2026-07-06]
  Tao tep ZIP truc tuyen tu mot thu muc hoac nhieu tep da chon. Trinh tao mien phi tai /zip-tools/zip-file.html; khong can cai dat o ca hai phia; tep tu xoa sau thoi gian luu tru ngan. Cap nhat 2026-05-18.
- [Tep tin sang ZIP - Huong dan nen tep tin truc tuyen](https://freetoolonline.com/guides/vi/file-to-zip.html) [lastmod=2026-07-06]
  Cach chuyen mot tep tin thanh tep ZIP truc tuyen: khi nao ZIP thuc su lam nho tep, khi nao khong, va cong cu tao nam o dau.
- [Tep ZIP truc tuyen: Cach tao mot tep ZIP truc tuyen (mien phi, trong trinh duyet)](https://freetoolonline.com/guides/vi/online-zip-file.html) [lastmod=2026-07-06]
  Tao mot tep ZIP truc tuyen - dan cac tep hoac mot thu muc vao bo tao trong trinh duyet, nhan mot tep .zip co the tai xuong, khong cai dat, khong dang ky. Lan kiem tra cuoi 2026-05-18.
- [Test Camera Hien Thi Man Hinh Den: 4 Cach Khac Phuc Hieu Qua](https://freetoolonline.com/guides/vi/camera-test-shows-black-screen-four-fixes.html) [lastmod=2026-07-06]
  Test camera hien thi mot hinh chu nhat den? Bon nguyen nhan - quyen, tat tieng he dieu hanh, khoa do camera ao, nap che rieng tu - va mot cach khac phuc trong mot phut cho moi nguyen nhan.
- [Test camera vs test webcam vs chat luong camera - cai nao?](https://freetoolonline.com/guides/vi/camera-test-vs-webcam-test-which-do-you-need.html) [lastmod=2026-07-06]
  Ba ten, ba bo kiem tra khac nhau. Test camera = phan cung truoc/sau dien thoai. Test webcam = camera laptop/desktop + quyen. Test chat luong = tieu cu, phoi sang, mau sac, nhieu. Cai nao chay khi nao.
- [Test man hinh vs Test LCD - cung mot thu?](https://freetoolonline.com/guides/vi/screen-display-test-synonyms.html) [lastmod=2026-07-06]
  Test man hinh, test display, test monitor - tat ca deu co nghia la cung cac kiem tra giong nhau. Chon cong cu dung: test LCD cho monitor, test camera cho webcam.
- [Text vs Line vs Word vs Git Diff](https://freetoolonline.com/guides/vi/text-diff-vs-line-diff-vs-word-diff-vs-git-diff.html) [lastmod=2026-07-06]
  Bon loai diff tra loi cac cau hoi khac nhau. Text diff cho bat ky cap nao, line diff cho code, word diff cho van xuoi, git diff cho thay doi duoc theo doi. Moi loai giai thich.
- [Thang Chinh Sua PDF - Chon Dung Cong Cu PDF](https://freetoolonline.com/guides/vi/pdf-editing-ladder.html) [lastmod=2026-07-06]
  Thang quyet dinh cho chinh sua PDF. Tach, gop, trich xuat, bao ve, lam phang, chuyen doi - chon dung cong cu theo y dinh trong 30 giay. 12 cong cu PDF anh xa sang luong cong viec.
- [Thay Doi Kich Thuoc File Zip: "Resize" That Su Co Nghia Gi Voi mot .zip](https://freetoolonline.com/guides/vi/resize-zip-file.html) [lastmod=2026-07-06]
  "Thay doi kich thuoc file zip" thuong nghia la lam nho archive, doi khi chia no, doi khi lam nho anh ben trong truoc khi re-zip. Bang dinh tuyen + cong cu dung cho moi truong hop.
- [Thoi gian bang mili giay: don vi, chuyen doi va gia tri epoch](https://freetoolonline.com/guides/vi/time-in-ms.html) [lastmod=2026-07-06]
  Thoi gian bang mili giay la mot so voi 1 giay bang 1000 ms. Tim hieu y nghia thoi luong va epoch, bang chuyen doi, va noi ms xuat hien trong ma nguon.
- [Thoi gian hien tai bang mili giay: doc gia tri epoch truc tiep va dung dung cach](https://freetoolonline.com/guides/vi/current-time-in-milliseconds.html) [lastmod=2026-07-06]
  Doc thoi gian hien tai bang mili giay ke tu epoch Unix trong trinh duyet, sao chep cho dong log hoac goi API, va tranh nham lan 10-chu-so-vs-13-chu-so giay-vs-mili-giay.
- [Thu Muc Sang Zip: Khi Nao Va Cach Luu Tru Thu Muc Truc Tuyen (Huong Dan Mien Phi)](https://freetoolonline.com/guides/vi/folder-to-zip.html) [lastmod=2026-07-06]
  Huong dan thu muc sang zip: khi nao luu tru mot thu muc thanh mot .zip duy nhat thuc su tiet kiem khong gian, cach chon dung cong cu va noi trinh tao trong trinh duyet song. Mien phi, khong cai dat.
- [Timestamp Unix Giai Thich](https://freetoolonline.com/guides/vi/unix-timestamps-explained.html) [lastmod=2026-07-06]
  Timestamp Unix giai thich - giay vs mili giay, ISO-8601, RFC 2822, UTC vs gio dia phuong va cac bay thuong gap khi chuyen doi giua cac dinh dang.
- [Trich Xuat Frame Tu GIF](https://freetoolonline.com/guides/vi/how-to-extract-frames-from-a-gif-for-a-social-post.html) [lastmod=2026-07-06]
  Cach trich xuat frame tu GIF cho bai dang mang xa hoi - chon mot frame hero, giu nguyen do trong suot, va giao mot anh tinh tai nhanh.
- [Trich Xuat Khung GIF: PNG hay JPG, Dinh Dang Nao Chon?](https://freetoolonline.com/guides/vi/extract-gif-frames-png-vs-jpg-which-format.html) [lastmod=2026-07-06]
  PNG bao toan kenh alpha va khong mat du lieu de chinh sua; JPG nho hon va ly tuong cho hinh thu nho. Khi nao chon moi loai khi trich xuat khung GIF.
- [Trinh Chinh Sua Anh vs App Do Hoa vs Batch](https://freetoolonline.com/guides/vi/photo-editor-vs-graphics-app-vs-batch-processor.html) [lastmod=2026-07-06]
  Ba loai cong cu anh giai quyet ba van de khac nhau. Trinh chinh sua anh cho mot anh, app do hoa cho thiet ke, batch processor cho nhieu tep cung luc.
- [Trinh Chuyen Doi HEIC vs JPG](https://freetoolonline.com/guides/vi/heic-vs-jpg-converter-when-each-wins.html) [lastmod=2026-07-06]
  Khi nao chuyen doi HEIC sang JPG, khi nao giu HEIC goc va khi nao khong duong nao thang. Quy tac quyet dinh cho dong bo iCloud, nguoi nhan Windows va chinh sua.
- [Trinh Nen File vs ZIP](https://freetoolonline.com/guides/vi/file-compressor-vs-zip-what-to-pick.html) [lastmod=2026-07-06]
  "Trinh nen file" qua chung chung. Chon theo loai file: ZIP mot thu muc, nen anh, chuyen doi HEIC, gom PDF hoac dung lien ket truyen cho video.
- [Trinh Nen File: Chon Theo Loai File](https://freetoolonline.com/guides/vi/file-compressor.html) [lastmod=2026-07-06]
  Trinh nen file mien phi chon dung cong cu trinh duyet theo nhung gi ban co: ZIP mot thu muc, nen anh, chuyen doi HEIC, gop PDF hoac dung lien ket truyen file.
- [Trinh Rut Gon CSS vs Trinh Nen](https://freetoolonline.com/guides/vi/css-minifier-vs-compressor.html) [lastmod=2026-07-06]
  Trinh rut gon CSS vs trinh nen - xoa khoang trang vs nen gzip/brotli, moi loai tiet kiem gi, va thu tu pipeline chinh xac de trien khai production.
- [Trinh Rut Gon CSS vs Uglifier vs Tree-Shaking](https://freetoolonline.com/guides/vi/css-minifier-vs-uglifier-vs-tree-shaking.html) [lastmod=2026-07-06]
  Ba chien thuat giam kich thuoc cho mot muc tieu. Trinh rut gon xoa khoang trang, uglifier doi ten ky hieu, tree-shaking loai bo luat khong dung. Khi nao moi cai co loi.
- [Trinh Trich Xuat Khung Hinh GIF - lay khung tu GIF dong](https://freetoolonline.com/guides/vi/gif-frame-extractor.html) [lastmod=2026-07-06]
  Huong dan tung buoc trich xuat khung hinh tu GIF dong: chon PNG hoac JPG, dat FPS va tai tung khung. Da xem lai lan cuoi 2026-05-14.
- [Truoc cuoc goi video - cong cu nao can chay (man hinh, camera, microphone)](https://freetoolonline.com/guides/vi/before-a-video-call-which-tools-to-run.html) [lastmod=2026-07-06]
  Nam phut truoc cuoc goi video: checklist nhanh cac kiem tra can chay tren man hinh, webcam va microphone, theo thu tu uu tien, voi cong cu phu hop cho moi buoc.
- [Tung Dong Xu Online: Huong Dan Tung Buoc](https://freetoolonline.com/guides/vi/coin-flip-step-by-step.html) [lastmod=2026-07-06]
  Huong dan tung buoc cho Coin Flip Online: cach tung, doc ket qua, va diem khac biet so voi may tung xuc xac va vong quay chon ten.
- [Tung Xuc Xac Online: Huong Dan Tung Buoc](https://freetoolonline.com/guides/vi/dice-roller-step-by-step.html) [lastmod=2026-07-06]
  Huong dan tung buoc cho Dice Roller Online: cach dat so xuc xac, doc mat xuc xac va tong diem, va diem khac biet so voi vong quay chon ten.
- [Unminify JS: Khoi Phuc Kha Nang Doc JavaScript Da Minify (Cong Cu Trinh Duyet Mien Phi)](https://freetoolonline.com/guides/vi/unminify-js.html) [lastmod=2026-07-06]
  Unminify JavaScript minified online mien phi. Dan bundle vao, nhan ma duoc thut le va ngat dong tro lai - khong cai dat, chay tren trinh duyet. Cap nhat lan cuoi 2026-05-20.
- [Url Decoder Khi Nao Dung](https://freetoolonline.com/guides/vi/url-decoder-when.html) [lastmod=2026-07-06]
  Url Decoder Khi Nao Dung - khi nao mo URL Decoder va nhung gi can biet khi dung no.
- [Url Decoder So Voi Cac Cong Cu Khac](https://freetoolonline.com/guides/vi/url-decoder-vs-alternatives.html) [lastmod=2026-07-06]
  Url Decoder So Voi Cac Cong Cu Khac - URL Decoder so sanh voi ung dung may tinh va dich vu upload.
- [Url Decoder Tung Buoc](https://freetoolonline.com/guides/vi/url-decoder-step-by-step.html) [lastmod=2026-07-06]
  Url Decoder Tung Buoc - cac buoc chinh xac de chay URL Decoder tu dau den ket qua.
- [Vong Quay Chon Ten Online: Huong Dan Tung Buoc](https://freetoolonline.com/guides/vi/wheel-spinner-wheel-names-step-by-step.html) [lastmod=2026-07-06]
  Start, sua danh sach va nhan Spin - xem chinh xac cach vong quay chon mot ten cong bang truoc khi dung cho boc tham hoac ra quyet dinh.
- [Vong Quay Co Hoac Khong Online: Huong Dan Tung Buoc](https://freetoolonline.com/guides/vi/yes-no-wheel-step-by-step.html) [lastmod=2026-07-06]
  Cach Yes or No Wheel mo san Co/Khong, cach bien thanh vong quay cho bat ky quyet dinh nao co 2+ tuy chon, va cach giu cho lan quay cong bang.
- [Webcam Mirror vs Flip Giai Thich: Tai Sao Preview Camera Dao Nguoc Chu](https://freetoolonline.com/guides/vi/camera-mirror-vs-flip-explained.html) [lastmod=2026-07-06]
  Tai sao xem truoc webcam dao nguoc chu va video da ghi thuong khong. Quy trinh kiem chung 30 giay cong cac buoc tat mirror chinh xac cho OBS, Zoom, Google Meet va Microsoft Teams.
- [Xao Tron Danh Sach Ngau Nhien So Sanh Cac Lua Chon Khac](https://freetoolonline.com/guides/vi/random-list-shuffler-vs-alternatives.html) [lastmod=2026-07-06]
  So sanh cong cu xao tron danh sach ngau nhien tren trinh duyet voi sap xep tay va cong thuc bang tinh RAND(), ve thoi gian thiet lap, dung luong cai dat, va quyen rieng tu.
- [Xao Tron Danh Sach Ngau Nhien: Huong Dan Tung Buoc](https://freetoolonline.com/guides/vi/random-list-shuffler-step-by-step.html) [lastmod=2026-07-06]
  Tung buoc: dan mot danh sach, bam Shuffle, va nhan mot thu tu ngau nhien cong bang bang Fisher-Yates va crypto.getRandomValues ngay trong trinh duyet.
- [Xoa Dong Trung Lap Tung Buoc: Lam Sach Danh Sach Ngay Trong Trinh Duyet](https://freetoolonline.com/guides/vi/remove-duplicate-lines-step-by-step.html) [lastmod=2026-07-06]
  Huong dan tung buoc cho cong cu mien phi Remove Duplicate Lines: dieu gi duoc coi la trung lap, dong nao duoc giu lai va so sanh voi bang tinh hoac dong lenh.
- [Zip online vs 7z vs Rar - chon cai nao](https://freetoolonline.com/guides/vi/online-zip-vs-7z-vs-rar-which-to-pick.html) [lastmod=2026-07-06]
  Chon dinh dang kho luu tru phu hop online: zip cho tuong thich, 7z cho nen tot nhat, rar khi ban phai mo mot cai. Ma tran quyet dinh va dinh tuyen cong cu trinh duyet.
- [Zip Thu Muc Truc Tuyen Mien Phi - huong dan](https://freetoolonline.com/guides/vi/zip-folder-online-free.html) [lastmod=2026-07-06]
  Zip mot thu muc truc tuyen mien phi trong trinh duyet - keo no vao, chon mat khau tuy chon, tai .zip. Tung buoc, khong cai dat. Cap nhat lan cuoi: 2026-05-19.
- [Zip vs Zipx vs Rar vs 7z, giai thich](https://freetoolonline.com/guides/vi/zip-vs-zipx-vs-rar-vs-7z-archive-formats-explained.html) [lastmod=2026-07-06]
  Bon dinh dang kho luu tru duoc so sanh: cai nao Windows mo mac dinh, cai nao nen nho nhat, va cai nao dang gia mot ung dung rieng. Huong dan ngon ngu don gian.

## Pages (6)

- [About Us - Our Story Behind 100+ Free Tools](https://freetoolonline.com/about-us.html) [lastmod=2026-07-06]
  Every tool page reads the same way and dates its wording; spot a stale step and the editorial team re-checks the tool family. No upload, no signup, free to use.
- [Contact Us - Email or DM the Team](https://freetoolonline.com/contact-us.html) [lastmod=2026-07-06]
  Use this contact form to send advertising, outsourcing request or feedback on this website.
- [Editorial Team](https://freetoolonline.com/editorial-team.html) [lastmod=2026-07-06]
  Meet the Free Tool Online editorial team - engineers, content specialists, and security reviewers who build and vet every tool on the site.
- [Privacy Policy](https://freetoolonline.com/privacy-policy.html) [lastmod=2026-07-06]
  Privacy policy for freetoolonline.com - what we collect (analytics + ads only), why, and how to opt out. Per-tool data flow on each tool page.
- [Site Map - All Tools, Guides & Resources](https://freetoolonline.com/sitemap.html) [lastmod=2026-07-06]
  A full index of every browser-based tool, long-form guide, and informational page on Free Tool Online - grouped by category for quick navigation.
- [Tags Collection](https://freetoolonline.com/tags.html) [lastmod=2026-07-06]
  Browse 100+ free online tools at freetoolonline.com by tag: file, image, PDF, video, developer, and device-test categories.