What is an AVIF file?
AVIF is the newest mainstream image format, based on the AV1 video codec. It often beats WebP by another 20 percent in file size and supports HDR and transparency. Support outside of modern browsers is still patchy, so AVIF files frequently need converting before they can be edited, printed or uploaded.
| Full name | AV1 Image File Format |
|---|---|
| File extensions | .avif |
| MIME type | image/avif |
| Introduced | 2019 |
| Compression | Lossy and lossless |
| Transparency | Yes (full alpha) |
| Animation | Yes |
| Typical file size | Smallest |
| Best for | next-generation web images with the best compression available |
| Compatibility | Modern browsers; poor support in desktop apps, Windows and upload forms |
How to open an AVIF file
Windows
Opens in Chrome, Edge and Firefox. Photos needs the AV1 Video Extension from the Microsoft Store.
Mac
macOS Ventura (13) and later open AVIF in Preview and Safari.
iPhone and iPad
iOS 16 and later support AVIF in Safari and Files.
Android
Android 12 and later and Chrome support AVIF.
If none of these work, convert the file to a more widely supported format with one of the tools below.
Convert AVIF files
AVIF metadata and privacy
AVIF images can include EXIF and XMP metadata, though images served on websites are usually stripped.
Remove metadata from AVIF files · View the metadata
AVIF compared with other formats
- AVIF vs WebP: AVIF compresses better than WebP, but WebP is faster to encode and supported in more places.
- AVIF vs JPG: AVIF is the most efficient mainstream image format; JPG is the most compatible. Use AVIF on the web and JPG for everything else.
Frequently asked questions
What is an AVIF file?
AVIF is the newest mainstream image format, based on the AV1 video codec. It often beats WebP by another 20 percent in file size and supports HDR and transparency.
How do I open an AVIF file on Windows?
Opens in Chrome, Edge and Firefox. Photos needs the AV1 Video Extension from the Microsoft Store.
How do I open an AVIF file on a Mac?
macOS Ventura (13) and later open AVIF in Preview and Safari.
Is AVIF lossy or lossless?
AVIF uses lossy compression, so some detail is discarded each time the file is saved.
Does AVIF support transparency?
Yes: (full alpha).
How do I convert AVIF to another format?
Use one of the free converters on this page, for example AVIF to JPG, AVIF to PNG, AVIF to WebP. Files are converted in your browser without being uploaded.