Convert AVIF to WEBP
Free online AVIF to WEBP converter that runs in your browser. Your files stay on your device.
How to convert AVIF to WEBP
- Add your AVIF file. Drag it onto the box above, click to browse, or paste it from the clipboard. Multiple files are fine.
- Check the target. WEBP is preselected. Pick High, Medium or Small quality depending on whether you need a master copy or a small file.
- Download. The conversion is instant. The WEBP file downloads automatically when it is done.
Why convert AVIF to WEBP?
AVIF is a modern web format that many upload forms, editors and older apps still reject. WEBP cuts file size by 25–35% for faster websites.
AVIF vs WEBP
| AVIF | WEBP | |
|---|---|---|
| Full name | AV1 Image File Format | WebP |
| Type | Image | Image |
| MIME type | image/avif | image/webp |
| About | AVIF is the newest web image format with the best compression, but still unsupported by many editors and older browsers. | WEBP is Google's modern web image format, 25–35% smaller than JPG and PNG with transparency and animation. Not accepted by many older apps and upload forms. |
What makes this converter different
- Nothing is uploaded. Other converters send your file to a server, queue it, and keep a copy for hours. Here the work happens in your browser with WebAssembly, so private videos, voice memos and documents never leave your computer.
- No limits, no sign-up, no watermark. There is no server to pay for, so there is no reason to cap file size or count.
- Real ffmpeg quality. Video and audio use the same ffmpeg encoders professionals use (x264, LAME, libvpx, FLAC), not a stripped-down web codec.
Related conversions
Frequently asked questions
Is it safe to convert AVIF to WEBP here?
Yes. The conversion runs entirely inside your browser using WebAssembly. Your file is never uploaded to a server, so nothing can leak, be stored or be seen by anyone. You can even disconnect from the internet after the page loads.
How long does AVIF to WEBP conversion take?
Images convert instantly, usually under a second even for large photos.
Is there a file size limit?
There is no server-side limit because there is no server. The practical limit is your device memory: browsers can handle files up to about 2 GB. Very large videos work better on a desktop than a phone.
Will the quality drop?
WEBP is a lossy format, so a small amount of detail is discarded. At the default Medium setting the difference is invisible or inaudible for almost all content. Choose High for master copies or Small for messaging and web use.
Can I convert several AVIF files at once?
Yes. Drop or select as many files as you like; they are converted one after another and each gets its own download button.