ImagesverifiedReviewed 2026-08-08

AVIF

AV1 Image File Format · image/avif · .avif

Overview

AVIF encodes images with the AV1 video codec and supports HDR, transparency, and animation. It can deliver smaller photo files than JPEG or WebP, but encoding is more CPU intensive and legacy device support is thinner.

Typical use cases

  • Compressed web photos
  • HDR images
  • Modern responsive images
  • Photo-heavy interfaces

Advantages

  • Designed for compressed web photos
  • Lossy or lossless storage
  • Open specification
  • Browser support: All modern browsers since 2022

Disadvantages

  • Encoding is CPU intensive
  • Not supported by some older devices
  • Tooling is newer than WebP

How to open or use it

Open AVIF files with an application that supports image/avif. Encoding and decoding in modern image tools. For delivery, use a viewer or converter that reads avif.