Compress Image
Shrink JPG, PNG and WEBP files while keeping them sharp.
Shrink JPG, PNG and WEBP files while keeping them sharp. Free, with no sign-up, no watermark and no upload: it all runs in your browser.
What Compress Image is for
For when a file is simply too big: an upload form that refuses it, a page that loads slowly, an email that bounces. It re-encodes at a quality you choose and can cap the dimensions at the same time, which usually matters more than the quality setting does.
How to use it
- Add your files. Drop them on the page or choose them. They stay on your device.
- Set the output format and quality. The defaults suit most files.
- Press convert and save the results, individually or as one ZIP.
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.