.avif

AV1 Image File Format

Handled by macOS itself

Format facts

MIME type: image/avif
Apple UTI: public.avif
Stock Quick Look: no stock preview
Planned approach (census): native-sufficient
Icon hint: renders
Prevalence: common

Renderer note (from the census)

macOS 13+ handles AVIF natively

Gotchas: older macOS needs plugin