Make JPGs 25–35% smaller with WebP at the same quality — free, no watermark,
and 100% in your browser. Powered by the Squoosh codecs; nothing is uploaded.
How to convert JPG to WebP
Drop your JPG into the box above — it's processed locally.
Output is already set to WebP. Pick a target size or "Best quality".
Click Compress image and download the WebP file.
Why convert JPG to WebP?
WebP uses more modern compression than JPEG, so it's usually 25–35% smaller at the same visual quality —
faster page loads and smaller uploads. SumoSquash runs the same WebP codec as Google's Squoosh, compiled to
WebAssembly and executed locally with zero network requests.
Is WebP smaller than JPG?
Typically 25–35% smaller at matching quality.
Are my images uploaded?
No — the WebP codec runs in your browser via WebAssembly.
When should I keep JPG?
For very old software that can't read WebP. Otherwise WebP wins on size.