Convert anything to WebP. Free, in your browser.
WebP shrinks photos dramatically: our 1024x695 reference photo went from 691 KB as PNG to 12 KB as WebP. PixSip writes WebP with libwebp in your browser - drop up to 20 images (10 MB each), no uploads.
How the WebP conversion works
- 1
Drop JPG, PNG, HEIC or AVIF
Up to 20 images per batch, 10 MB each. Files stay on your device.
- 2
libwebp writes the WebP
Each image is encoded to WebP at a calibrated quality, with its own size shown next to the result.
- 3
Keep the smallest
Compare sizes at a glance and download the batch as a ZIP, all generated locally.
Why WebP wins on the web
Up to 98% smaller
On our reference photo the 691 KB PNG came back as a 12 KB WebP - and AVIF gets smaller still.
Every format in
JPG, PNG, HEIC and AVIF are decoded locally, so the converter accepts anything you are likely to have.
Private by design
Conversion runs in your browser. There is no upload endpoint, no storage, and nothing to delete afterwards.