AVIF Image — AV1-based image format delivering high compression for photos.
Quick facts
What is .avif
A .avif file is a AVIF Image — AV1-based image format delivering high compression for photos.
In the mime-db registry it maps to image/avif, and it is marked as non-compressible. When serving .avif over HTTP, set the Content-Type header as shown in Developer info below.
Related entities: it maps to image/avif — and is delivered over HTTP via the Content-Type header.
How to open .avif files
Developer info
When served over HTTP, responses should set the following header:
Content-Type: image/avif
Common software that reads/writes .avif:
Relation chain
Related extensions
Related MIME types
Common uses
How to edit .avif files
How to create .avif files
Frequently asked questions
Common options include Chrome, GIMP, Preview. You can also open many of these files with built-in viewers or a browser.
Create a new file in any text editor or the app that owns the format and save it with the .avif extension.
image/avif is the media type identifier used for .avif files during network transfer (for example in the HTTP Content-Type header).
Sources & standards
Updated 2026-08-18
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