Convert WebP to AVIF

Squeeze WebP images even smaller with AVIF.

Add the WebP images to convert to AVIFWebP · up to 50 MB each · other images work too

How to use WebP to AVIF

Add your WebP images
Drop the .webp files onto the page, or click to choose them.
Set the quality
Use the slider to balance file size and detail. The default suits most photos; raise it for prints, lower it for the smallest AVIF files.
Convert and download
Click Convert, then save each image, or all of them at once as a ZIP.

Smaller than WebP
AVIF is typically 20–30% smaller than WebP at the same visual quality.
Transparency kept
Transparent backgrounds carry over to the AVIF file.
Private by design
Everything happens in your browser, so your images are never uploaded to a server.

Both formats are lossy, so converting adds a little loss. At the default setting it’s very hard to see; raise the quality to be safe.

They convert to a still AVIF of the first frame.

AVIF is slow to create: a few seconds per image.

Yes. It’s free with no sign-up, no watermark and no limit on how many images you convert.