So komprimieren Sie ein Bild online auf 50KB (kostenlos)

Ein Bild online auf 50 KB zu bringen ist ein Qualitaetskompromiss, der in mehreren Durchgaengen erledigt wird, nicht mit einem Knopf. Speichern Sie das Foto als JPG, legen Sie es in einen Browser-Kompressor und senken Sie die Qualitaet, bis das Vorschauergebnis unter Ihr Limit passt. Die komprimierte Kopie erscheint neben dem Original, sodass Sie den Kompromiss vor dem Herunterladen bestaetigen.

Last reviewed: 2026-07-01

freetoolonline.com Editorial Team

Eigenschaft	Wert
Format	Online, ohne Installation, ohne Anmeldung
Kosten	Kostenlos
Verwendetes Tool	https://freetoolonline.com/image-tools/compress-image.html

Drei Dinge entscheiden, ob Sie unter 50 KB kommen. Das Format kommt zuerst: ein PNG- oder HEIC-Screenshot haelt Details, die JPG verwirft, also speichern Sie es vor dem Komprimieren als JPG, weil ein PNG allein oft nicht weit schrumpft. Die Abmessungen kommen als Naechstes: ein 4000 Pixel breites Foto verliert den Grossteil seines Gewichts, wenn Sie es mit einem Groessenaenderungs-Tool verkleinern, bevor der Qualitaetsschritt ueberhaupt zaehlt. Dann die Qualitaet: beginnen Sie nahe 60, lesen Sie die Dateigroesse in der Vorschau und senken Sie den Regler Schritt fuer Schritt, bis es passt. Weil das Ergebnis neben der Quelle erscheint, koennen Sie einen Schritt ueber dem Punkt stoppen, an dem die Weichzeichnung sichtbar wird.

← Zurueck zu den Bildbearbeitungswerkzeugen

Last updated: Jul 1, 2026

Reviewed by the Free Tool Online editorial team · Tested in the current versions of Chrome, Firefox, Safari, and Edge before publishing. No account is needed to use any tool. Report a bug - we triage within 72 hours. · Last refreshed April 2026.

Why trust these tools

Ten-plus years of web tooling. The freetoolonline editorial team has shipped browser-based utilities since 2015. The goal has never changed: get you to a working output fast, without an install.
No install, no sign-up. Open a tool and get a working output in seconds - nothing to download and no account to create. Tools that need heavy processing run it on our service, so even a low-powered machine gets the job done.
Analytics stops at the page view. We measure which pages get visited, not what you type or upload inside a tool. There is nothing to sign in to and no profile is attached to your input.
Open-source core components. The processing engines underneath (libheif, libde265, pdf-lib, terser, clean-css, ffmpeg.wasm, and others) are public and audit-able. We link to each one in its tool page's footer.
Free, with or without ads. All tools are fully functional without sign-up. The Disable Ads button in the header is always available if you need a distraction-free run.

Related tools:

File Compressor: Pick the Right Tool by File Type - Free file compressor online: ZIP a folder, compress JPG/PNG photos, convert HEIC to JPG, or merge
Get JPEG Compression Level - JPEG compression level checker - inspect the quality value a JPG was saved with, estimate headroom
Convert GIF To Images Frame - Extract every frame from an animated GIF and save each as PNG or JPG.
Convert Images to PDF - Images to PDF online - combine JPG, PNG, or WebP into a multi-page PDF.
Convert PDF To Images - PDF to images online - export every PDF page (or a selected range) as PNG or JPG.
Compress JPEG by AI - Free online image compressor - drop a JPG, PNG, or WebP, preview the before/after, and download a
Insights Image Optimizer - Image optimizer online - compress JPG, PNG, and WebP for PageSpeed Insights.
Image Cropper And Rotator - Crop image online to a free-form area or a preset ratio (1:1, 16:9, 4:5); rotate in 90° steps or at
GIF Maker and Gif Editor - GIF maker online - create an animated GIF from a video clip or a sequence of still images.
ImageMagick Online - ImageMagick online - run resize, convert, composite, and effect commands directly in your browser.
Resize JPG and PNG by BiInterpolation Algorithm - Resize image online - set exact pixels or a percentage, keep aspect ratio, and export JPG, PNG, or
Compose, Create PDF By Editor - Create PDFs online with a simple PDF editor.

Tags: #image-editing

Related guides:

JPG vs PNG for the Web - JPG vs PNG for web images - when lossy compression wins, when lossless + transparency matters, and
How to Extract Frames from a GIF for a Social Post - How to extract frames from a GIF for a social post - pick a hero still, preserve transparency, and
What We Learned Running Free In-Browser Image Tools - What we learned running free in-browser image tools for 100K monthly users - technical choices,
When to Compress vs Convert an Image - Compress or convert an image?
File Compressor vs ZIP - What to Pick - "File compressor" is too generic.
What Is a File Compressor and Which to Use - A "file compressor" is not one tool.
File Compressor: Pick the Right Tool by File Type - Free file compressor that picks the right browser tool by what you have: ZIP a folder, compress
How to Compress a File Online (Step by Step) - Compress a single file online without uploading.
Extract GIF Frames: PNG or JPG, Which Format? - PNG or JPG when extracting GIF frames?
GIF Frames vs GIF Frame Rate (FPS) Explained - GIF frames are the still pictures inside an animated GIF; GIF frame rate (FPS) is how fast they
How to Split a GIF Into Frames - Pull individual frames out of an animated GIF for editing, archiving, or social posts.
How to Crop and Rotate an Image - Crop and rotate an image in the browser without losing the original.