Compress AVIF Online — Free & Instant

AVIF is the most efficient format for web images, but even AVIF files can be over-compressed or under-compressed for their intended use case. Re-encoding with precise quality control gives you exactly the file size you need while keeping visual quality at the level you require.

AVIF's compression advantage over other formats is most pronounced at lower quality settings. At quality 60–70, AVIF can represent photographic content with very small files while maintaining surprisingly good visual quality — much better than JPEG or even WebP at the same quality setting. This makes AVIF particularly valuable for low-bandwidth scenarios, mobile delivery, and thumbnail-heavy interfaces.

For production web images, quality 75–85 is the recommended range for AVIF. This strikes the ideal balance between maximum compression efficiency and preservation of fine detail, colour accuracy, and texture. At quality 80, AVIF images are typically 40–50% smaller than JPEG images of equal visual quality.

When re-compressing existing AVIF files, the same principle applies as with any lossy format: each re-encode accumulates quality loss. Use quality 80+ to keep additional degradation imperceptible. For the most critical images, encode from a lossless source (PNG, TIFF, RAW) to produce the final AVIF without intermediate lossy steps.

AVIF encoding is computationally intensive. OptiPic uses your browser's native AVIF encoder, which may take 2–10 seconds for large, high-resolution images. The encoding time is a one-time cost; the resulting small file delivers fast for every visitor who loads it.