REDUCEPIXELS

100% browser-based · zero uploads

Compress images to an exact file size

Free JPG, PNG and WebP compression that runs entirely on your device. Pick a quality level or a hard limit like 100KB or 1MB — we find the best quality that fits.

Image Compressor

Runs on your device — no upload

Drop an image here

or click to browse, or paste from your clipboard with Ctrl/Cmd + V

JPG · PNG · WebP · AVIF · BMP · GIF — up to 40 MB

Supported formats

Input: JPG, PNG, WebP, AVIF, BMP and GIF. Output: the three formats every platform accepts.

Compress to an exact size

Iterative binary-search compression lands just under your limit — no guesswork.

How it works

1. Add your image

Drag & drop, browse, or paste from the clipboard.

2. Choose mode

A smart quality level, or an exact target file size.

3. Compress

Multi-pass encoding with live progress, on your device.

4. Download

Clean filenames like photo-optimized.webp.

Your images never leave your device

Most "free" compressors upload your photo to a server you know nothing about. This one cannot: the compression engine is JavaScript running in your browser, using the same Canvas and Blob APIs that render the web. There is no upload endpoint, no queue and no storage.

Open your browser's Network inspector while you compress — you will not see your image being sent anywhere. Re-encoding also strips EXIF metadata, including GPS location.

Read the full privacy policy
  • No uploads — compression is local, instant and offline-capable
  • No accounts, no email address, no payment details
  • No image storage, logs or third-party processing services
  • Safe for ID documents, medical scans and client photography

Image format comparison

Comparison of JPG, PNG and WebP image formats
FormatCompressionTransparencyTypical sizeBest for
JPGLossyNoBaselinePhotographs, scans, portal uploads
PNGLosslessYesLargest for photosLogos, icons, text, pixel art
WebPBothYes25–35% smaller than JPGModern websites and apps

Where compressed images help

Websites

Faster pages and better Core Web Vitals scores.

Email

Fit attachment limits without cloud links.

Applications

Lighter app bundles and quicker screens.

Online forms

Meet strict 50KB–1MB portal limits exactly.

Social media

Upload faster and avoid platform re-crunching.

E-commerce

Sharp product photos that still load instantly.

Documents

Shrink scans and receipts before archiving.

Why compress at all?

Faster pages

Images are usually the heaviest asset on a page. Halving them is the biggest speed win available.

Better rankings

Core Web Vitals reward fast Largest Contentful Paint, and images drive that metric.

Lower bandwidth

Less data for your hosting bill and for visitors on mobile plans.

Upload limits met

Portals and forms enforce hard caps — exact-size mode hits them first time.

More storage

Archive years of photos in a fraction of the space.

No quality surprises

Compare before and after with the slider before you download.

Frequently asked questions

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