AVIF (AV1 Image File Format)
AVIF is a next-generation image format based on the open-source AV1 video codec. It delivers superior compression efficiency, often 50% smaller than JPEG and 20% smaller than WebP at equivalent quality. AVIF supports HDR, wide color gamut, transparency, and animation.
MIME Type
image/avif
Type
Binary
Compression
Lossy
Advantages
- + Best-in-class compression efficiency
- + Royalty-free and open-source codec
- + HDR and wide color gamut support
- + Growing browser support
Disadvantages
- − Slower encoding than JPEG or WebP
- − Not yet universally supported
- − Limited tooling compared to established formats
When to Use .AVIF
Use AVIF as a progressive enhancement for websites, serving it to supported browsers while falling back to WebP or JPEG for others.
Technical Details
AVIF uses AV1 intra-frame coding with advanced transforms and prediction modes. It supports 8, 10, and 12-bit color depth, 4:4:4 chroma, HDR10, and PQ/HLG transfer functions.
History
AVIF was finalized by the Alliance for Open Media in February 2019. Chrome added support in 2020, and Safari followed in 2023, completing major browser coverage.
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