What is AVIF?
AV1 Image File Format
.avif
AVIF stores a still image using the AV1 video codec, developed by the Alliance for Open Media, a group that includes Google, Netflix, Mozilla and Apple. The specification was published in 2019.
It compresses photos very efficiently, often producing a noticeably smaller file than JPG or WebP at the same visible quality, and it supports transparency and HDR color. The catch is support outside the browser: many editors, upload forms and older devices still can't open it.




