AVIF

File Format
Name	AVIF
Ontology	Electronic File Formats Graphics AVIF
Extension(s)	.avif, .avifs
MIME Type(s)	image/avif, image/avif-sequence
Wikidata ID	Q59913607
Released	2018 (draft), 2019 (v1.0.0)

AVIF (AV1 Image File Format) is an image and animation file format, an extension of HEIF allowing images encoded with AV1. Most files will only have AV1-encoded images, but a mixture of different encodings is allowed. Early draft versions were named AV1 Still Image File Format.

Identification

The brands "avif" and either "MA1B" or "MA1A" are present.

Specifications

• AV1 Image File Format (AVIF)
  • Related GitHub projects

Software

• abydos
• avif2png - simple command line converter
• AVIF/HEIC converter - free, on-line converter for AVIF and HEIC images, no ads, no registration

Libraries

• libavif
• libheif - supports HEIC and AVIF
• Unit for Delphi/Free Pascal/Lazarus - reads and writes AVIF and HEIC images

Sample files

• dexvert samples — image/avif

Links

• Wikipedia: AV1#AV1 Image File Format (AVIF)
• AVIF Creating a new Image Format in the Open by Jon Bauman.