Convert WebP to AVIF

Private by design: the conversion runs on your device. Nothing is uploaded.

  1. Choose the target format
  2. Drop your file (or click to browse)
  3. Download the converted file
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Output format: avif

Both of these belong to the modern web, so this is a size upgrade rather than a compatibility rescue: AVIF normally lands 20 to 30 percent below a WebP of matching quality, which adds up on an image heavy page. The WebP is decoded by the browser and re-encoded by the bundled AV1 codec, all without leaving this tab. Alpha survives the trip, so cut out assets stay cut out.

Frequently asked questions

Is the extra saving worth another lossy pass?
On a hero image or a long gallery, usually yes. On a small icon the absolute saving is a couple of kilobytes and the generation loss is not worth paying.
Which format has better support right now, WebP or AVIF?
WebP has the longer track record, but every current browser engine reads AVIF as well. Support is no longer the thing that should decide between them.
Can an animated WebP become an animated AVIF?
Not on this page. The opening frame is encoded as a still image, so hold on to the original whenever the animation is the point.