JPG to AVIF Converter
Shrink JPG files by ~50% by converting to AVIF. Modern web format.
Why convert JPG to AVIF?
AVIF produces files roughly 50% smaller than JPG at the same visual quality — a substantial win for page speed and hosting bandwidth. The tradeoff is compatibility: while modern browsers all support AVIF (Chrome 2020, Firefox 2021, Safari 2022), older browsers and many image editors still don't. Use AVIF for web delivery; keep JPG originals for archive. AVIF is encoded right in your browser via libavif WebAssembly.
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Unlimited files · runs entirely in your browser · nothing is uploaded
JPEG · PNG · WebP · GIF · AVIF · HEIC · JPEG XL
About JPG
JPG is the universal photo format — lossy, broadly compatible.
- JPG → AVIF is double-lossy; for archival use keep the original JPG
- AVIF preserves visual quality at roughly half the file size
- AVIF encoding is slower than JPG but only happens once