Convert WebP to AVIF online free. Upgrade your web images to the next-generation format. 20–30% smaller than WebP at the same quality. No upload.
WebP was Google's answer to JPEG inefficiency — and it delivered a 25–35% improvement. AVIF goes further: it is typically 20–30% smaller than WebP at the same visual quality. If you are already using WebP, converting to AVIF is the logical next step for maximum performance.
Drop your WebP file into IMGVO. AVIF encoding runs in the background using Web Workers.
AVIF encoding is more CPU-intensive than WebP. IMGVO shows a progress indicator — the page stays responsive.
Save the AVIF. For maximum reach, use it alongside a WebP fallback in your <picture> element.
| File size (same quality) | WebP: Baseline | AVIF: 20–30% smaller |
| Browser support | WebP: ~97% | AVIF: ~90% |
| Encoding speed | WebP: Fast | AVIF: Slower (CPU-intensive) |
| HDR support | ❌ No | ✅ Yes |
Generally yes — AVIF achieves 20–30% better compression than WebP at the same quality. However, AVIF encoding is slower, which is why IMGVO uses Web Workers to keep the page responsive.
Use both. Serve AVIF to browsers that support it and WebP as a fallback using the <picture> element. This gives you the best performance across all browsers.
Any transcoding between lossy formats introduces some generation loss. For best results, convert from the original lossless source to both formats rather than converting WebP to AVIF.
AVIF encoding is more CPU-intensive than WebP. IMGVO runs everything in your browser and uses Web Workers to keep the UI responsive during conversion.