What is AVIF?

AV1 Image File Format (.avif). High-compression modern image format that can beat WebP on size at similar quality.

Last updated: 2026-03-18

AVIF (AV1 Image File Format, .avif) is a image format that uses both compression. High-compression modern image format that can beat WebP on size at similar quality. It supports transparency. It supports animation. Common uses include photo-heavy pages, performance budgets, high-volume sites.

Quick facts

Extension
.avif
Type
Image format
Compression
both
Transparency
Yes
Animation
Yes
MIME type
image/avif

Common uses

  • photo-heavy pages
  • performance budgets
  • high-volume sites

Delivery notes

  • Can deliver extremely small files at high quality.
  • Consider fallbacks for older clients when needed.

What to do with optimo

npx optimo image.avif

Related conversions

More image formats

Frequently asked questions

What is AVIF?
AV1 Image File Format (.avif) is a image format. High-compression modern image format that can beat WebP on size at similar quality. It uses both compression, supports transparency and animation.
What is AVIF used for?
AVIF is commonly used for: photo-heavy pages, performance budgets, high-volume sites.
How do I optimize AVIF files?
Run "npx optimo image.avif" in your terminal. Optimo applies format-specific compression to reduce AVIF file size while preserving quality.