Convert AVIF images to WebP online for free. Upload one file or many, choose the quality and maximum size, then download the WebP results one by one or all together in a ZIP. No sign-up needed.
AVIF is a newer image format that some older browsers, apps and editors still cannot open. WebP is supported by every current browser and most image tools, so converting AVIF to WebP keeps files small while reaching more people.
Keep the AVIF if your site only needs to support current browsers: AVIF is often even smaller than WebP.
AVIF is a modern image format built on the AV1 video codec. It supports transparency and high dynamic range, and it often produces the smallest files of any web image format at a given quality. Encoding is slower than for JPG or WebP, and older browsers and some apps cannot open it.
More AVIF conversionsWebP is an image format developed by Google. It supports lossy and lossless compression, transparency and animation, and at comparable visual quality its files are usually smaller than JPG or PNG. That is why it is popular for websites, and current versions of all major browsers can display it.
More WEBP conversions| Feature | AVIF | WEBP |
|---|---|---|
| Full name | AV1 Image File Format | WebP |
| Compression | Lossy and lossless | Lossy and lossless |
| Transparency | Yes | Yes |
| Animation | Yes | Yes |
| Introduced | 2019 | 2010 |
| Developed by | Alliance for Open Media | |
| Best for | The smallest web images in modern browsers | Fast-loading website images |
AVIF usually makes smaller files, WebP works in more places and is faster to create. For the widest support choose WebP.
Yes. Both formats support transparent backgrounds.
Click Select File or drop your AVIF file onto the upload box. Pick the quality and maximum size, and the converted WebP appears in the list below with a download button. You can add many files at once and download them together as a ZIP.
Yes. There is no sign-up and no watermark. To keep the service available for everyone there is a 95MB limit per file and a cap on how many files one connection can process in a short period.
Your upload is used only to make the converted file. Images are processed in memory; other files are written to a private temporary folder that is deleted as soon as the conversion finishes. Nothing is kept after the result has been sent back.
For images, a little, by design: the image is re-encoded at the Quality you choose (default 75%). Audio and video are re-encoded with high-quality settings; documents keep their text and layout as far as the target format allows. Converting never restores detail that is already missing from the original.