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AVIF to WebP Converter

Convert AVIF images to WebP for maximum browser compatibility. WebP is supported in 97% of browsers including all Safari versions. Free, instant, runs in Chrome or Firefox.

Why convert AVIF to WebP?

AVIF has superior compression but slightly lower browser support than WebP. If you're using AVIF images and encountering compatibility issues — particularly with Safari users on older macOS versions, or with image optimization tools that don't support AVIF — converting to WebP provides a safe, broadly-supported alternative with only a modest increase in file size.

WebP vs AVIF compatibility comparison

  • WebP: Chrome 23+, Firefox 65+, Safari 14+, Edge 18+, Opera 12+ — ~97% global support
  • AVIF: Chrome 85+, Firefox 93+, Safari 16+, Edge 121+ — ~93% global support

The 4% gap is mostly Safari users on macOS Monterey and earlier, plus users on older mobile browsers. If you need to support these users without a JPEG fallback, WebP is the safer single-format choice.

File size trade-off

WebP is approximately 15–25% larger than AVIF at equivalent quality. Converting from AVIF to WebP will increase file size by this amount. This is acceptable when broader compatibility is the priority over maximum compression.

Frequently asked questions

Use WebP when you need a single format that works in all modern browsers without any fallback. WebP has 97% global support vs AVIF's 93%. The gap primarily affects Safari users on macOS Monterey and earlier. If your analytics show significant Safari traffic, WebP is the safer single-format choice.
Typically 15–25% larger at equivalent visual quality. A 200 KB AVIF at quality 80 might become a 240–260 KB WebP at quality 82. This is a reasonable trade-off for gaining compatibility with an additional 4% of browsers.
Yes — AVIF decoding requires Chrome 85+ or Firefox 93+ or Safari 16+. On older browsers, the AVIF file may not load for conversion. Update your browser to the latest version if you encounter issues.
Yes — this is the recommended approach. Use the HTML <picture> element to serve AVIF to Chrome/Firefox/Safari 16+ and WebP as a fallback for older Safari and other browsers: <picture><source srcset="img.avif" type="image/avif"><source srcset="img.webp" type="image/webp"><img src="img.jpg"></picture>.