AVIF is the newest mainstream image format, based on the AV1 video codec. It delivers dramatically better compression than both JPEG and WebP — often 50% smaller files with no visible quality loss. AVIF supports HDR, wide color gamut, transparency, and animation. Browser support reached 95%+ in 2025, making AVIF the performance leader for web images in 2026.
Best for: High-performance websites, next-gen web optimization, HDR photography, replacing WebP for even better compression.