Format guide
AVIF
AV1 Image File Format
AVIF uses AV1 video codec compression for still images, typically 30-50% smaller than JPG and 20% smaller than WebP at the same visual quality. Supported in Chrome since 2020, Firefox since 2021, Safari since 16.4 (2023). The encoding step is significantly slower than JPG, which is why CDNs adopt it slowly. Best fit: hero images and photo galleries on modern sites where bandwidth matters.
How to open a AVIF file
All current browsers (2024+) display AVIF inline. Native OS viewer support varies, Windows 11 supports it natively, macOS only since Ventura. Older photo editors may need a plugin.
Primary use
Modern web images where every kilobyte matters.
Convert other formats to AVIF
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