WebP to AVIF Converter
Upgrade from WebP to AVIF — 10–20% smaller files, same quality. No upload needed.
Best for web developers upgrading existing WebP image libraries to AVIF on modern browser stacks.
Drop files here
or click to browse · paste from clipboard
Accepts .WEBP · Up to 1,000 files
How it works
Drop your files
Drag and drop, click to browse, or paste from clipboard. Up to 1,000 files at once.
Choose settings
Adjust quality, format, and other options to match your needs.
Click Convert
Everything runs in your browser via WebAssembly. WebP to AVIF Converter happens locally — no server involved.
Download
Download files individually or grab all at once as a ZIP.
Frequently asked questions
AVIF achieves 10–20% better compression than WebP at equal quality, with no visible difference. If your web platform supports AVIF (Chrome 85+, Firefox 93+, Safari 16+), serving AVIF instead of WebP means smaller files, faster page loads, and lower bandwidth costs. It's a straightforward upgrade for modern web projects.
AVIF is supported in Chrome 85+, Edge 121+, Firefox 93+, and Safari 16+ (released September 2022). Older browsers and some mobile apps do not support it. For maximum compatibility, WebP remains the safer default. For modern web projects where you control the browser environment (or serve AVIF with a WebP fallback), AVIF is the better choice.
AVIF's compression is more efficient than WebP, so lower quality numbers produce the same perceptual quality. AVIF at 60 is visually similar to WebP at 80. If you push quality above 80, you'll get slightly larger files than the original WebP with no visible improvement.
Yes. Drop them all in and ConvertYard processes them in your browser — no uploads, no server queue. AVIF encoding is CPU-intensive; on a modern laptop, 1,000 files at effort 4 typically finishes in 10–20 minutes. Lower the effort setting to speed up encoding.
Never. Conversion runs entirely in your browser using WebAssembly. Your files never leave your device.