Compress Image
Shrink JPG, PNG and WEBP files while keeping them sharp.
- Add
- Adjust
- Make
- Keep
How to use this tool
- Add your files — drag them onto the page or choose them. They stay on your device.
- Choose the output format — WEBP is the default because it is the best size-for-quality trade; JPG when the destination cannot take WEBP.
- Leave Also cap the dimensions on Keep original size, or limit the longest side — for big photos this usually matters more than the quality slider.
- Press “Compress images” and download the results, individually or as one ZIP.
About this tool
Shrink JPG, PNG and WEBP files while keeping them sharp. Free and unlimited, and nothing is uploaded: it all runs in your own browser. It runs entirely in your own browser — your file is never uploaded to a server, and the result downloads straight from your device, free, with no account and no watermark.
Privacy & limitations
A file that is already efficiently compressed (a small PNG, an existing WEBP) can come out larger when re-encoded; when that happens the original is handed back untouched rather than a bigger copy.
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Frequently asked questions
How much smaller will the file get?
A photograph typically drops by 60 to 90 per cent moving to WEBP at quality 75, with no difference most people can see. A screenshot may not shrink at all, because it is already efficiently stored.
Why did my PNG get bigger?
Because it was already small and well compressed. Re-encoding an efficient file cannot improve it. When that happens the original is handed back untouched rather than a larger copy.
What quality should I use?
Around 75 to 80 is the sweet spot for photographs: above it the file grows quickly for a difference almost nobody can see, below it the artefacts start to show in smooth areas like skies and skin.
Is resizing better than compressing?
Usually, yes. A 12-megapixel photo shown at 800 pixels wide is carrying fifteen times more detail than the screen will ever draw. Capping the longest side is the single biggest saving available.