Images saved from websites are often WebP, which many apps and upload forms still reject. Converting to AVIF fixes that: smallest files of any common format.
Drop one WebP or a hundred — they’re converted inside your browser, so even private photos are never uploaded anywhere.
WebP vs AVIF
| WebP | AVIF | |
|---|---|---|
| Compression | Lossy or lossless | Lossy or lossless |
| Transparency | Yes | Yes |
| Animation | Yes | Yes |
| File size | 25–35% smaller than JPG at the same quality | Often 50% smaller than JPG |
| Compatibility | All modern browsers; some older apps and upload forms still reject it | Modern browsers (Chrome, Edge, Firefox, Safari 16+); limited in desktop apps |
| Best for | Websites and online stores that need fast-loading images | The smallest possible files for modern websites |
Good to know before converting WebP to AVIF
- AVIF files are smaller, but double-check that the app or site you’re uploading to accepts AVIF.
- Hidden data like GPS location and camera details is left out of the converted file.
What is WebP?
WebP was made by Google to make websites load faster. It does everything JPG and PNG do — including transparency — in noticeably smaller files. The catch: plenty of desktop apps, government portals and older software still can’t open it.
What is AVIF?
AVIF is the newest mainstream image format, based on the AV1 video codec. It squeezes photos dramatically smaller than JPG while keeping them sharp, and supports transparency and HDR. It’s still new, so many apps and websites don’t accept it yet.
How to convert WebP to AVIF
- Drop your WebP files (or paste with Ctrl+V).
- AVIF is already selected — adjust quality if you like.
- Download one by one or all as a ZIP.
Frequently asked questions
Does converting WebP to AVIF reduce quality?
Only very slightly. AVIF is lossy or lossless; at the default quality the difference is practically invisible. Raise the quality slider for maximum fidelity.
Can I convert many WebP files at once?
Yes — drop as many as you like and download them all as one ZIP.
Are my images uploaded to a server?
No. Everything happens inside your browser on your own device. Your images are never uploaded, stored or seen by anyone — check your browser's Network tab, or turn on airplane mode after the page loads and see that it still works.
Is it really free?
Yes. No sign-up, no watermark, no daily limits and no paid “HD” downloads.
Do downloads still contain my location?
No. Every file you download is saved without hidden metadata like GPS location, camera serial number or owner name.