AVIF Format
The newest web format: often half the size of JPG at the same quality.
What is AVIF?
AVIF stores images using the AV1 video codec. It achieves excellent quality at very small sizes, supports transparency, wide color and HDR.
Pros and cons
AVIF files are usually the smallest. The trade-off is slower encoding and slightly less support in older software.
- 30–50% smaller than JPG at similar quality
- transparency and HDR support
- supported by Chrome, Edge, Firefox and Safari 16+
- slower to encode than JPG or WebP
When to use AVIF
Use AVIF for large hero images and photo-heavy pages where every kilobyte counts, ideally with a WebP or JPG fallback via the <picture> element.