Convert AVIF to WebP

Turn AVIF images into WebP files that load fast on websites.

Runs on your device. Your files are never stored.

Short answer

To convert AVIF to WebP, add your files to FileFleet, adjust the quality if you like, and download the WebP files, zipped if there are several. It runs in your browser, so nothing is uploaded. In our test, a 2400 × 1350 photo went from 195 KB to 91 KB as WebP.

Price
Free
Account
None needed
Your files
Never stored
Limits
No daily limit, no watermark
You get
WebP images, zipped if there are several
Works on
Phones and computers

AVIF vs WebP

WebP opens in more apps than AVIF while staying compact, so it’s a good middle ground when an AVIF won’t open somewhere.

FeatureAVIFWebP
Full nameAV1 Image File FormatWebP, developed by Google
Introduced20192010
CompressionLossy or losslessLossy or lossless
TransparencyYesYes
AnimationYesYes
Best forThe smallest files for websitesImages on websites, where small files load faster
Opens inCurrent Chrome, Firefox, Edge and Safari; many apps can’t open it yetAll current browsers; some older apps and upload forms reject it

What happens to file size

Measured with FileFleet’s own converter at its default quality (85%), November 2026. Your files will differ, but the direction is usually the same.
Test imageAVIFWebPChange
A 2400 × 1350 photo195 KB91 KB-53%
A 1440 × 860 website screenshot31 KB41 KB+30%

About the two formats

AVIF

AVIF uses compression from the AV1 video codec and usually makes the smallest image files of any common format. Browser support is broad, but desktop apps are still catching up.

WebP

WebP was built to make web images smaller than JPG and PNG at the same quality. Websites use it widely, which is why images you save from the web are often WebP.

How to convert AVIF to WebP

  1. 1Add your AVIF files.
  2. 2Adjust the quality if you like.
  3. 3Download the WebP files.

Questions

Do my files get uploaded?

No. AVIF to WebP runs entirely in your browser, so your files never leave your device. Close the tab and they're gone.

Is it really free?

Yes. No account, no daily limits and no watermark on your files.

Is WebP more widely supported than AVIF?

Yes. WebP has been supported in browsers for longer and more apps can open it.

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