| Extension | .avif |
| Category | images |
| Description | .avif (AV Image File Format)
The .avif format is an image file format that is designed to encapsulate AV (AOMedia Video ) encoded images. AVIF offers significant file size reduction compared to JPEG and PNG while maintaining high image quality. It supports high dynamic range (HDR) and wide color gamut (WCG) images, as well as features like lossy and lossless compression, transparency, and animation. AVIF is increasingly being adopted for web use due to its efficiency and superior image quality. |
| Technical details | The `.avif` (AV1 Image File Format) is an advanced image format with:
- **AV1 Codec Basis**: Uses AV1 video codec for high compression and quality, outperforming JPEG/PNG in smaller sizes.
- **Efficient Compression**: Intra-frame coding from AV1 ensures minimal quality loss, effective at low bitrates.
- **HDR/WCG Support**: Displays a wide color range and detailed highlights/shadows with HDR and WCG.
- **Transparency**: Manages transparency and varying opacity.
- **Color Profiles**: Supports ICC, RGB, and YCbCr color spaces.
- **8-bit and 10-bit Colors**: Handles both, enhancing HDR content detail.
- **Compression Types**: Provides lossless and lossy options.
- **Tile-Based Coding**: Enables parallel processing and selective decoding with image tiling.
- **Metadata**: Incorporates Exif and XMP data.
- **Streaming and Thumbnails**: Optimized for adaptive streaming and thumbnail storage.
- **Browser Support**: Gaining support in browsers like Chrome, Firefox, and image software.
- **Bandwidth Efficiency**: High compression benefits web/mobile content by reducing bandwidth.
- **Royalty-Free**: No licensing fees, promoting widespread use.
`.avif` marks a significant improvement in image formats, enhancing compression, quality, and features, ideal for web and mobile contexts. The introduction of the .avif format represents a significant advancement in image technology, offering improvements in compression, image quality, and features over older formats, particularly in the context of web and mobile applications. |
