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.