Convert AVIF to WEBP
Convert AVIF to WEBP for free. Files never leave your device: the conversion runs in your browser, works offline, no upload, no limits.
Drop files here or click to choose
Your files stay on this device. Nothing is uploaded.
AVIF (AV1 Image File Format) is the newest web format, smaller than WEBP, but not yet accepted by many apps and printers. WEBP is Google's web format: 25–35% smaller than JPG, supports transparency and animation. Some older apps and photo editors still reject it. This converter turns one into the other directly on your device, so your files are never uploaded anywhere.
How it works
- Drop your AVIF files here or click to pick them (many at once is fine).
- Pick WEBP quality (80 is a good default).
- Click Convert. Download each WEBP or all of them as a ZIP.
This tool runs entirely in your browser. Your files are never uploaded, so there is no size limit and it works offline once loaded.
About the formats
AVIF (AV1 Image File Format) — the newest web format, smaller than WEBP, but not yet accepted by many apps and printers.
WEBP (WebP) — Google's web format: 25–35% smaller than JPG, supports transparency and animation. Some older apps and photo editors still reject it.
Frequently asked questions
Is it really free and private?
Yes. There is no server: your browser does the conversion with open-source code. Your files never leave your computer or phone, which also means there is no file-size limit and it works offline once the page has loaded.
Will I lose quality converting AVIF to WEBP?
Both are lossy, so a little detail is discarded twice. At quality 80 the difference is invisible on screen, and the WEBP will usually be 20-40% larger than the AVIF it came from.
Does it work on iPhone and Android?
Yes, in Safari and Chrome. Very large batches may be limited by your phone's memory; convert in groups if a batch fails.
Why convert AVIF to WEBP at all?
WEBP is understood by every browser and by most apps and CMSs; AVIF is newer and still rejected in places. WEBP is the safe middle ground when JPG is too lossy.