Free AVIF to WebP converter online
Need a WebP instead of a AVIF? This free converter turns AVIF files into WebP images right in your browser. Add as many files as you like, adjust the settings and download the results individually or together as a ZIP.
AVIF is the newest mainstream image format, based on the AV1 video codec. It often beats WebP by another 20 percent in file size and supports HDR and transparency. Support outside of modern browsers is still patchy, so AVIF files frequently need converting before they can be edited, printed or uploaded.
WebP is a modern format created by Google for the web. It is typically 25 to 35 percent smaller than an equivalent JPG and supports transparency and animation, which is why so many websites now serve it. The downside is compatibility: older versions of Photoshop, Windows Photo Viewer, many printers and lots of upload forms still cannot open WebP files.
About AVIF and WebP files
New to these formats? These pages explain what each one is for and how to open it on Windows, Mac, iPhone and Android.
Why convert AVIF to WebP?
- WebP files are much smaller than JPG and PNG at the same visual quality, which makes web pages load faster and improves Core Web Vitals and SEO.
- AVIF files are often rejected or can't be opened by desktop editors, Windows Photos, older phones and most upload forms; WebP avoids that problem.
How to convert AVIF to WebP
- Click the upload box or drag and drop your AVIF files (you can select several at once).
- Conversion to WebP starts automatically. Change the quality or background colour if you like.
- Download each WebP file or click 'Download all' for a ZIP.
Features
- Batch conversionConvert hundreds of AVIF files at once.
- No uploadFiles never leave your device, so it is fast and private.
- Strips metadataThe WebP files contain no EXIF or GPS data.
- Any deviceWorks on iPhone, Android, Windows, Mac and Chromebook.
AVIF vs WebP: what's the difference?
| Feature | AVIF | WebP |
|---|---|---|
| Full name | AV1 Image File Format | WebP (Google) |
| Released | 2019 | 2010 |
| Compression | Lossy and lossless | Lossy and lossless |
| Transparency | Yes (full alpha) | Yes (full alpha) |
| Animation | Yes | Yes |
| Typical file size | Smallest | Very small |
| Best for | next-generation web images with the best compression available | websites, because it is 25-35% smaller than JPG at the same quality |
| Compatibility | Modern browsers; poor support in desktop apps, Windows and upload forms | All modern browsers; some older desktop apps and upload forms still reject it |
| File extensions | .avif | .webp |
| MIME type | image/avif | image/webp |
Frequently asked questions
How do I convert AVIF to WebP?
Open this page, add your AVIF files, and FileStripe converts them to WebP in your browser. Then download the files one by one or as a ZIP. It takes a few seconds and you don't need to install anything.
Will converting AVIF to WebP reduce quality?
WebP is a lossy format, so there is a small, usually invisible, loss. Use the quality slider: 90 or above is visually identical for almost all images.
Can I convert multiple AVIF files to WebP at once?
Yes. Select or drop as many AVIF files as you like; there is no limit on the number or size of files.
Is the AVIF to WebP free?
Yes. The AVIF to WebP is completely free with no sign-up, no watermarks, no daily limits and no premium tier.
Are my files uploaded to a server?
No. FileStripe processes your files locally in your web browser using JavaScript. Nothing is uploaded, so the AVIF to WebP is safe for private photos and confidential documents and even works offline once the page has loaded.
Does it work on iPhone and Android?
Yes. The AVIF to WebP works in Safari, Chrome, Firefox, Edge and Samsung Internet on phones, tablets and computers. On a phone you can pick files from your photo library or files app and share the result straight to another app.
Last updated · Processing happens locally in your browser.