⎗ image/avif

File Extensions

avif, avifs

Magic Bytes

1. ISOBMFF file type box code + major brand prefix for AVIF image or image sequence

   Offset	4	5	6	7	8	9	10
   Byte	0x66	0x74	0x79	0x70	0x61	0x76	0x69
   Char	f	t	y	p	a	v	i

References

• Media Type Assignment
• AVIF - Brands
• MP4RA Brands
• ISOBMFF Major Brand Explanation