JPG to AVIF
converter.
Convert JPG to AVIF in your browser to make your images dramatically smaller for the web — without uploading anything. Drop your JPGs and download optimized AVIF files ready for fast-loading pages.
Why convert JPG to AVIF?
AVIF can be around 50% smaller than JPG at the same visual quality, which means faster pages, lower bandwidth and better Core Web Vitals. It's the format to reach for on modern websites and apps.
JPG vs AVIF
AVIF uses the AV1 codec to beat JPG (and usually WebP) on compression, and it also supports transparency and HDR. The trade-offs are slower encoding and the fact that very old browsers won't display it. onvert encodes AVIF locally via WebAssembly, so your originals never leave your device.
FAQ
JPG to AVIF, answered.
- How much smaller is AVIF than JPG?
- Typically around 50% smaller at comparable visual quality, though it depends on the image.
- Do all browsers show AVIF?
- All current major browsers support AVIF. Very old browser versions may not, so keep a JPG fallback for critical images.
- Are my files uploaded to a server?
- No. Conversion runs entirely in your browser using WebAssembly. Your files never leave your device and we never see them.
- Is it free?
- Yes, converting on onvert is completely free, with no sign-up and no ads.
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