AVIF
AV1 Image File Format
MIME type: image/avif
AVIF is a modern image format based on the AV1 video codec, developed by the Alliance for Open Media. It offers significantly better compression than JPEG and WebP — typically 30-50% smaller files at the same visual quality. As of 2026, AVIF has 93% browser support.
Advantages
- +30-50% smaller than JPEG at same quality
- +Supports transparency (alpha channel)
- +Supports HDR and wide color gamut
- +Royalty-free, open standard
- +93% browser support in 2026
Limitations
- -Slower to encode than JPEG or WebP
- -Not yet universal in older software
- -Limited editing support in some apps
- -Complex format with many options
Common Use Cases
Technical Details
AVIF uses the AV1 intra-frame codec for still image compression. It supports 8-bit, 10-bit, and 12-bit color depths, 4:2:0, 4:2:2, and 4:4:4 chroma subsampling, and both lossy and lossless compression. The format is based on the ISOBMFF (ISO Base Media File Format) container, the same used by HEIF/HEIC. Encoding is CPU-intensive but decoding is fast, making it ideal for web delivery.
Frequently Asked Questions
What is an AVIF file?
AVIF (AV1 Image File Format) is a modern, open-source image format that compresses images 30-50% smaller than JPEG while maintaining the same visual quality. It's supported by Chrome, Firefox, Safari, and Edge.
AVIF vs WebP — which is better?
AVIF generally achieves 20-30% better compression than WebP, especially for photographs. However, WebP encodes faster and has slightly broader legacy support. For new projects, AVIF is the better choice.
How do I open an AVIF file?
Most modern browsers (Chrome, Firefox, Safari, Edge) can display AVIF images natively. For editing, use GIMP, Photoshop (with plugins), or convert to PNG/JPEG using BriskTool's image converter.
Can I convert AVIF to JPG?
Yes. Use BriskTool's free image converter to convert AVIF to JPG, PNG, or WebP instantly in your browser. No upload required — your files stay on your device.