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Convert AVIF to WebP

Turn AVIF images into WebP files that more programs and websites accept, and keep their transparency. Pick the quality, convert several images at once, and download them one by one or as a ZIP.

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Drop AVIF images here

or click to browse from your device

Select AVIF Images

🔒 Images are converted on your device and are not uploaded. Your browser's own AVIF and WebP support does the work - details below.

Add one or more AVIF images to get started.

✅ Conversion complete!

AVIF to WebP converter

AVIF and WebP are both modern image formats built to make web pictures small, but they are not accepted equally everywhere. WebP has been around longer, so more editors, content management systems, apps and older browsers can open it. This converter turns AVIF images into WebP files, keeping any transparency, so you can use them where AVIF is refused.

Choose the WebP quality, convert one image or many, and check the preview and new file size of each result. If you need an image that opens in absolutely every program, use AVIF to JPG; if you need a lossless file, use AVIF to PNG. To make WebP files smaller, try Compress WebP.

How to convert AVIF to WebP

1Add your AVIF imagesDrag and drop them onto the box, or click it to choose files. Files ending in .avif are accepted, and each file is checked to make sure it really is an AVIF image.
2Choose the WebP qualityThe default of 80 is a good balance. Lower it for smaller files, raise it to keep more detail.
3Click "Convert to WebP"Images are converted one after another. Each finished image shows a thumbnail and its new file size. You can stop at any time.
4Download the resultsUse the Download button next to an image, or "Download All (ZIP)" when you converted more than one.

Choosing the WebP quality

90-100: Maximum detail and the largest files. Useful if you will edit the image further.
75-85: Looks like the original at normal viewing sizes. 80 is the default.
55-70: Noticeably smaller files, good for web pages and sharing online.
Below 50: Small files, but compression artifacts start to show in smooth areas such as sky.

You can change the quality after converting. Click "Convert to WebP" again and the images are converted again with the new setting.

How your images are handled

Your images are read by your browser from your device, decoded by its built-in AVIF support, and saved as WebP by its built-in WebP support. They are not uploaded to LovePDFImg or to any other server.
No converter library has to be downloaded for the conversion itself. If you use "Download All (ZIP)", the page loads a small ZIP library (JSZip) from the cdnjs network the first time. That download is software only and, like any web request, it shows cdnjs your IP address. Your images are not part of it.
The WebP files exist only in your browser tab until you download them. LovePDFImg does not store them, and they are gone when you close or leave the page.
If you allow analytics in the cookie settings, Google Analytics measures page visits. File names and file contents are not sent. See the Privacy Policy and Cookie Policy.

What to know before you convert

Your browser must open AVIF and create WebP. Current Chrome, Edge and Firefox can do both. Safari cannot create WebP files from a web page, so the tool tells you and does not produce a wrong file.
Transparency is kept. Transparent areas of an AVIF image stay transparent in the WebP file.
The WebP can be larger than the AVIF. AVIF is often more efficient, and converting between two lossy formats can lose a little detail.
Metadata is not copied. The WebP files do not include the original's date, camera details or GPS location.
Animated AVIF becomes one still image. Only the first frame is converted.
Colors and HDR can differ. Wide-gamut or high-bit-depth AVIF images are converted to standard 8-bit colors, so some images may look slightly different.
Damaged files are reported. A file that cannot be decoded is marked with a message, and the other images are still converted. A file that is only slightly damaged may still convert partially.
Size limits. You can add up to 50 files at a time, each up to 100 MB. Very large images may be scaled down to fit your browser's limits, and the list tells you when that happens.
AVIF only. HEIC, JPG, PNG and GIF files are not converted here. The list points you to HEIC to JPG, JPG to WebP or PNG to WebP when you add one by mistake.

Frequently Asked Questions

AVIF and WebP are both modern web image formats, but WebP is supported by more editors, content management systems, apps and older browsers. If a program or website accepts WebP but not AVIF, converting is the quickest fix. WebP also keeps transparency, which JPG cannot.

No. Your images are opened and converted by your browser on your own device, using the AVIF and WebP support built into the browser, and the WebP files are created there too. No converter library has to be downloaded for the conversion itself. If you use the ZIP download, the page loads a small ZIP library (JSZip) from the cdnjs network. Your images are never sent anywhere.

The browser must be able to open AVIF and also create WebP files. Current versions of Chrome, Edge and Firefox can do both. Safari can open AVIF but cannot create WebP files from a web page, so on Safari the tool shows a notice instead of producing a wrong file. In that case, use Chrome, Edge or Firefox, or convert to JPG or PNG instead.

Both formats are lossy, so converting re-encodes the picture and can lose a little detail. At the default quality of 80 the difference is rarely visible at normal viewing sizes. AVIF is often more efficient than WebP, so the WebP file can end up larger than the original AVIF. Lower the quality setting for smaller files, or use the Compress WebP tool afterwards.

Yes. Transparent areas in an AVIF image stay transparent in the WebP file. No background color is added.

No. The converted WebP files do not include the metadata stored in the original, such as the date taken, GPS location or camera model. Keep the original AVIF files if you need that information.

Only the first frame is converted, so the result is a single still WebP image. The list marks files that look animated so you know.