AVIF
| AV1 Image File Format (AVIF) | |
|---|---|
| Filename extension |
.avif |
| Internet media type | image/avif |
| Developed by | Alliance for Open Media |
| Initial release | v1.0.0 19 February 2019 |
| Latest release | v1.2.0 16 October 2025 |
| Type of format | |
| Contained by | HEIF |
| Extended from | HEIF, ISOBMFF, AV1 |
| Open format? | Yes |
| Website | aomediacodec |
AV1 Image File Format (AVIF extension/container) is an open, royalty-free file format specification for storing images or image sequences compressed with AV1.
An AVIF file is designed to be a conformant HEIF file for both image items and image sequences. Specifically, this specification follows the recommendations given in "Annex I: Guidelines On Defining New Image Formats and Brands" of HEIF.
This specification reuses syntax and semantics used in [AV1-ISOBMFF].
In a number of tests by Netflix in 2020, AVIF showed better compression efficiency than JPEG as well as better detail preservation, fewer blocking artifacts and less color bleeding around hard edges in composites of natural images, text, and graphics.
According to the website caniuse.com, AVIF support is available in all the major web browsers (accounting for over 93% of all web browsers by use).