Convert WebP to AVIF
Convert WebP to AVIF online free. Fast, private and in your browser — no upload, no sign-up and no watermark. Batch WebP→AVIF conversion that works on any device.
To convert WebP to AVIF, drop your WebP file into the converter above, then download the AVIF result. It's free, needs no sign-up, and there's no watermark. The conversion runs entirely in your browser, so your files never leave your device.
Why convert WebP to AVIF?
Convert WebP to AVIF to push image compression even further. AVIF frequently produces a smaller file than WebP at the same quality, with transparency preserved — useful when you're optimising assets to the limit.
- Re-encoding existing WebP assets for extra savings.
- Standardising on the most efficient modern format.
- Optimising large galleries for speed.
WebP vs AVIF
WebP · WebP
WebP is Google's modern image format. It does both lossy and lossless compression with transparency, and is typically 25–35% smaller than an equivalent JPG or PNG. Every current browser supports it.
AVIF · AV1 Image File Format
AVIF is built on the AV1 video codec and is one of the most efficient image formats available — often 50% smaller than JPG with better quality, plus transparency and HDR. Encoding is slower and support, while broad, is slightly newer than WebP.
WebP to AVIF — frequently asked questions
How do I convert WebP to AVIF?
Drop your WebP file (or several) into the converter, confirm AVIF is selected as the output, click convert, then download the AVIF file. The whole thing takes a few seconds.
Is this WebP to AVIF converter free?
Yes — it's completely free with no watermark and no sign-up required.
Is it safe to convert WebP to AVIF here?
Yes. WebP to AVIF conversion happens entirely in your browser — your files are never uploaded to a server.
Can I convert multiple WebP files at once?
Yes. Add as many WebP files as you like and download them individually or together as a zip.
Does it work on mobile?
Yes — the converter runs in any modern browser on phones, tablets and desktops.