Convert WebP to AVIF

Already down to WebP and want to know if AVIF can shrink it further? Drop your files below and find out — the conversion happens entirely on your device, batch or single file.

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JPG, PNG, WebP, AVIF, or HEIC (Safari only) · processed locally · never uploaded · paste with Ctrl+V also works

Quality80

Lower quality means a smaller file.

Output format

Convert between JPG, PNG, WebP, and AVIF, or keep the original format.

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Why go from WebP to AVIF?

Starting from WebP instead of JPG or PNG means there's less low-hanging fruit left, since WebP already compressed the image once — but AVIF's newer codec typically still finds another 10-20% on top, thanks to more efficient tools for the same job. Transparency carries over either way, since both formats handle it the same way.

How much it's worth doing depends on how hard the original WebP was already compressed: one saved at a moderate quality setting still has real room to shrink further, while one already pushed close to its practical limit won't gain much no matter what you convert it to. It's a quick thing to check either way, since nothing leaves your device to find out.

AVIF vs WebP: Why AVIF Compresses Better →