AVIF Converter
AVIF applies AV1 video compression to still images and is typically 20-30% smaller than WEBP at matching quality. Browser support is now broad, but non-browser tools frequently cannot read it at all, so it is a publishing format rather than a working one.
AVIF at a glance
| Full name | AV1 Image File Format |
|---|---|
| Extension | .avif |
| MIME type | image/avif |
| Compression | Lossy and lossless |
| Transparency | Yes |
| Animation | Yes |
| Colours | 16.7M+ (up to 12-bit HDR) |
| Browser support | Chrome 85+, Firefox 93+, Safari 16.4+ |
| Typical use | Next-gen web images (even smaller than WEBP) |
| Introduced | 2019 |
Convert AVIF to another format
Create AVIF from another format
More about AVIF
Still stuck? Try the help centre or the FAQ.
Already have AVIF files that are too large? Compress AVIF instead of converting.
AVIF questions
Is AVIF smaller than WEBP?
Typically 20 to 30% smaller again at matching quality, because it uses AV1 video compression. The gain is largest on photographs and smallest on flat graphics, where WEBP's lossless mode is already efficient.
Which browsers support AVIF?
Chrome from version 85, Firefox from 93 and Safari from 16.4, which covers the large majority of traffic. Outside the browser it is far patchier: many desktop applications, older phones and upload forms still reject it.
Why is AVIF encoding slower than JPG?
It is doing far more work: AV1 searches a much larger space of ways to encode each block, which is where the size advantage comes from. The cost is paid once when the file is written and never by the person viewing it.
Should I use AVIF for images people will download?
Only if you know their software reads it. AVIF is excellent for images displayed on a web page, where you can offer a fallback, and a poor choice for a file someone will save and open in whatever they happen to have.