AVIF file format

AV1 Image File Format, a modern still-image format based on the AV1 video codec.

MIME type: image/avif
Extensions: .avif
Category: Images

Magic-number signature

0x00000004	66747970	ftyp	ISO-BMFF 'ftyp' box
0x00000008	61766966	avif	brand 'avif'

About the AVIF format

AVIF applies the AV1 video codec to still images, delivering excellent compression with HDR and wide-gamut support. Like MP4 it is an ISO-BMFF file: an 'ftyp' box at offset 4 carrying the brand 'avif'.

Related formats

HEIC
WebP
JPEG
MP4

Have a file that might be AVIF? Identify it with the File Type Identifier — it reads the magic number locally, nothing is uploaded. Or browse all formats.