Squoosh

What Squoosh actually is

Google's image compressor shows the original and the compressed version either side of a draggable divider, so you can see precisely what a quality setting costs. Codecs include MozJPEG, WebP, AVIF and OxiPNG, and the work happens locally without uploading the file anywhere.

Why it is worth your time

The split-screen slider turns compression from guesswork into something visible, which is why you end up picking a lower setting than you planned to.

Common questions

Is Squoosh free?

Yes. Squoosh is free and does not ask you to register or hand over an email address before you can use it.

How long does Squoosh take?

One quick round, then you can leave. We file it under "A minute" — shrink an image and watch the quality drop live.

Does Squoosh work on a phone?

Squoosh really wants a mouse and a wide window. It will load on a phone, but the experience is built for desktop.

What kind of site is Squoosh?

We list it under Practical Magic — free tools that feel like cheating. The split-screen slider turns compression from guesswork into something visible, which is why you end up picking a lower setting than you planned to.