How to open a .avif file?

AVIF files can be opened by most image viewers and editors. You can also convert AVIF to other formats online using SquishConvert.

How to convert a .avif file?

Upload your .avif file to SquishConvert, select an output format, and click Convert. Your converted file will be ready to download in seconds.

Image format

.avif

AV1 Image File Format

AVIF is a next-generation image format based on the AV1 video codec. It offers the best compression ratios available today — significantly better than WebP and JPG — while being royalty-free and open source.

MIME type

image/avif

Developer

Alliance for Open Media

Introduced

2019

Advantages

Best-in-class compression efficiency
Royalty-free and open source
Supports HDR, wide color gamut, and transparency
Both lossy and lossless modes

Limitations

Slow encoding speed
Growing but incomplete browser support
Limited editing software support
Relatively new format

When to use AVIF

Cutting-edge web performance optimization

HDR image delivery

Next-gen progressive web apps

Replacing WebP for maximum compression

Technical details

AVIF uses the AV1 intra-frame codec within the HEIF container format. It supports 8, 10, and 12-bit color depths, 4:2:0/4:2:2/4:4:4 chroma subsampling, HDR10, and PQ/HLG transfer functions.