Free Tool Online

Why a single tool aggregator?

Most everyday digital chores - compressing a ZIP for email, turning iPhone HEIC photos into JPGs, splitting a PDF, testing a screen for dead pixels, generating a QR code, hashing a string with MD5 - already have one good free online tool. Free Tool Online collects 122 of them in one place so you stop bouncing between sites that all look slightly different and have slightly different upload limits.

The point is convenience without compromise: every tool here works on its own, opens in your browser without an install, and never asks for an account.

What we cover

Our 122 tools fall into eight clusters; each cluster has a hub page that lists every tool in the cluster, plus shared explanatory content.

• ZIP tools - compress files and folders, unzip archives, remove ZIP passwords. The largest cluster by traffic; the Compress, Zip File and Folder tool alone handles tens of thousands of compressions per month.
• Image editing - compress JPEG, resize, crop, photo editor, GIF maker, ImageMagick online, FFmpeg online. Eight tools that cover the everyday "make this image work for the place I need it" reader-task.
• Image converters - HEIC to JPG (the second-most-used tool on the site), SVG to PNG, PNG to SVG, image to base64 and back. Six format-conversion tools.
• PDF tools - compose, split by range or per-page, merge from multiple files, protect with password, remove password, flatten, preflight, and convert to text/images/HTML. Twelve PDF tools.
• Developer tools - JSON parser, CSS / JS minifier and unminifier, MD5 converter, text diff. Nine tools for the small build-step or debugging task.
• Device tests - LCD test (dead pixel + stuck pixel + uniformity), camera test, microphone test, keyboard test (N-key rollover, anti-ghosting). Four browser-only diagnostics that need no install.
• Video tools - convert, trim, FFmpeg online. Three tools.
• Utility - time-in-millisecond conversion, QR code generator, regional and Vietnamese-language utilities. Five tools.

Privacy and where files are processed

This is the question we get most often, so the honest answer up front: most tools are mostly browser-based, but not all of them.

Tools that don't need server help - like the LCD test, camera test, microphone test, keyboard test, MD5 converter, JSON parser, CSS / JS minifier, QR code generator, and a few others - run entirely in your browser. Files (when they're involved) never leave your device. There is no upload step.

Tools that need server help - like ZIP compression on large folders, HEIC conversion (the HEIC codec is patent-encumbered and not natively supported in browsers), photo editor batch operations, and PDF composition - upload the file to our processing service, do the work, return a download link, and delete the file shortly after the session ends. We do not retain file content, do not look at file metadata for ad targeting, and do not build behavioural profiles from what you upload.

Each tool's page has a "How does this tool work?" section that names the processing model explicitly. If you're handling sensitive content (legal, medical, payroll), prefer the in-browser tools or a desktop equivalent; we'll never claim a tool is "100% local" if it isn't.

Frequently asked questions

Is everything actually free? Yes. Every tool, every guide, every category. The site is supported by ads (which respect a "Disable Ads" button at the page header) and a small Buy-Me-a-Coffee link in the navbar. We never paywall a tool feature.

Do I need to sign up? No. There is no account system. Bookmark the site if you find a tool you'll re-use.

How big a file can I process? Per-tool limits vary; most tools accept files up to the standard email-attachment range (25 - 50 MB) and many handle larger. The tool's page shows the active limit.

How fresh is each tool? Each tool page shows a "Last updated" stamp driven by the file's git history. The site receives weekly updates; the homepage's Recently published guides tile lists the most recent additions.

I found a bug or want a new tool - how do I report it? Use Contact us. We read everything; tool requests with a clear reader-task statement (what you want to do, why the existing tools don't fit) get queued for the next implementation cycle.

Where can I read more about how the site is run? The editorial team page lists who maintains what; About us covers the project history and 2026 roadmap.

The shape of a useful tool aggregator in 2026

The web is full of free-tool sites that all look the same: a noisy hero, a long list of tools with similar names, ad slots between every paragraph, and a "best free X tool 2026" page that's clearly machine-generated. We try to do the opposite: a clean homepage that surfaces what readers actually need, plain language on every tool ("HEIC to JPG" not "AI-Powered Smart Image Format Solutions"), and explainers - our guides - that answer the questions readers actually type into Google before they click a tool.

If something here saves you a minute, that's the design intent. If something here is wrong, missing, or harder than it should be, tell us and we'll fix it.