Compare AV1 Image File Format and High Efficiency Image formats — understand the key differences and when to use each
AV1 Image File Format
AVIF (AV1 Image File Format) is a next-generation image format based on the AV1 video codec. AVIF provides approximately 50% better compression than JPEG and 20% better than WebP at equivalent quality. It supports HDR, wide color gamut, transparency, animation, and lossless compression. AVIF is supported by Chrome, Firefox, Safari, and Edge. While encoding is slower than JPEG or WebP, AVIF produces the smallest file sizes with excellent quality, making it ideal for web performance optimization.
High Efficiency Image
HEIC (High Efficiency Image Container) uses the HEVC (H.265) video codec for image compression, providing approximately 50% better compression than JPEG at equivalent quality. Apple adopted HEIC as the default photo format for iOS 11+ and macOS High Sierra+ devices. A single HEIC file can contain multiple images (like burst photos or Live Photos), depth maps, alpha channels, and HDR content. HEIC supports 16-bit color depth and wide color gamut (P3), resulting in more vibrant and detailed photos than JPEG. However, HEIC has limited compatibility outside the Apple ecosystem — many Windows applications, web browsers, and social media platforms require JPEG or PNG. Converting HEIC to JPG or PNG ensures universal compatibility while preserving image quality.
| Feature | AVIF | HEIC |
|---|---|---|
| Full Name | AV1 Image File Format | High Efficiency Image |
| File Extension | .avif | .heic |
| Category | image | image |
| Free to Convert | ✓ Yes | ✓ Yes |
| Browser Support | ✓ All Browsers | ✓ All Browsers |
| Convert to Each Other | ✓ Yes | ✓ Yes |
或将文件拖放到此处
最大文件大小：2GB