Better compression than WebP, free, no upload required
AVIF achieves 20 to 50% better compression than WebP at the same visual quality. Convert your WebP images to AVIF to reduce bandwidth, improve Core Web Vitals scores and deliver faster page loads. Runs entirely in your browser. Nothing is uploaded.
20-50% smaller
vs equivalent WebP
No uploads
Files stay on your device
Batch convert
Multiple files at once
AVIF encoding is compute-intensive. Conversion may take 5 to 30 seconds per image. All processing runs in your browser.
Drop WebP files here or click to browse
All processing stays in your browser. Nothing is uploaded.
WebP was Google's answer to JPEG back in 2010. It works well and has near-universal browser support. AVIF came later, built on the AV1 video codec, and it delivers meaningfully better compression. The tradeoff is encoding speed. AVIF takes longer to encode but the resulting files are smaller, which means faster delivery for every visitor.
High-traffic websites
The bandwidth savings from AVIF over WebP add up quickly. A site serving 100,000 images per day saves significant CDN costs by switching.
Core Web Vitals improvement
Smaller AVIF files reduce LCP (Largest Contentful Paint) times compared to WebP. Google uses LCP as a ranking factor.
Mobile performance
Smaller files load faster on mobile connections. AVIF's compression advantage is most noticeable on 4G and slower connections.
E-commerce product images
Product photo grids with many images benefit most from AVIF's per-image savings multiplied across the full catalogue.
Read more about how format choices affect your site in the Core Web Vitals and image compression guide.
AVIF achieves 20 to 50% better compression than WebP at equivalent visual quality. If you are serving images on a high-traffic website, switching from WebP to AVIF can significantly reduce bandwidth costs and improve page load times. AVIF also has 95% browser support as of 2025.
For most photographs, AVIF will be 15 to 30% smaller than an equivalent WebP at the same quality level. The savings are larger for complex images with fine detail and smaller for simple flat-colour images.
AVIF encoding is compute-intensive because it uses the AV1 codec. Expect 5 to 30 seconds per image depending on image size and your device's speed. The converter uses speed 8 (fastest) by default which produces files only about 5% larger than the slowest setting while being around 10 times faster.
AVIF has approximately 95% browser support as of 2026, covering Chrome, Firefox, Safari and Edge. Some older browsers and image processing tools may not support it. If compatibility is a concern, keep WebP as your format or use the picture element to serve AVIF with a WebP fallback.
No. All conversion happens in your browser using WebAssembly. Your files never leave your device.
Yes. Drop multiple WebP files or select them from the file picker. Each file converts independently. Download them individually or as a ZIP archive.
JPG to AVIF
Convert JPEG directly to AVIF. Up to 50% smaller than JPEG.
PNG to AVIF
Convert PNG to AVIF for 60 to 80% smaller files with transparency preserved.
AVIF to WebP
Going the other direction? Convert AVIF to WebP for wider compatibility.
WebP vs AVIF comparison
Full comparison of both formats including compression, quality and support.
