WebP to AVIF Converter

Runs locally in your browser. Nothing leaves your device.

Convert static WebP files to AVIF when browser AVIF encoding is supported.

WebP to AVIF Converter

or drag files here

WebP → AVIF

Image · Max. 50 MB per file · 20 files · processed locally in your browser

How it works

  1. 1

    Select WebP files

    Select up to 20 local WebP images.

  2. 2

    Set the quality

    Adjust the quality slider and start the conversion.

  3. 3

    Download the AVIF files

    Download the results individually or bundled as a ZIP.

Good to know

The WebP to AVIF converter converts up to 20 WebP images at once directly in your browser via canvas into AVIF, with a quality slider and a default of 82. Since both WebP and AVIF support an alpha channel, existing transparency is preserved during conversion.

Multiple results can be downloaded together as a ZIP, with a visible size comparison per file. Since the source can already be lossily compressed WebP, repeated lossy conversion between formats should be avoided to prevent visible detail loss.

Typical use cases

Migrate an existing WebP library to AVIF

Convert existing WebP images to AVIF when a website or app is moving to the even smaller AVIF format.

Batch-compress transparent WebP graphics

Process multiple transparent WebP graphics at once while keeping transparency in the AVIF result.

Tips for better results

Avoid double lossy compression

If the WebP was already lossily compressed, another lossy conversion leads to further, cumulative detail loss.

Check transparency after conversion

Check the AVIF result for transparent graphics, especially at semi-transparent edges.

Features

  • Quality slider with a default of 82

    Adjust AVIF quality between 10 and 100 to balance file size and image fidelity.

  • Transparency is preserved

    The alpha channel is carried over from WebP to AVIF, since both formats support transparency.

  • Local processing

    The conversion happens via canvas directly in the browser, without uploading the images.

Frequently asked questions

Is my WebP's transparency preserved?

Yes. Both WebP and AVIF support an alpha channel, so transparency is preserved.

Are my images uploaded?

No. Conversion runs entirely locally in the browser via canvas.

More tools

JPG to AVIF ConverterConvert JPG and JPEG files to AVIF when browser AVIF encoding is supported.Convert PNG to AVIFConvert static PNG files to AVIF locally in your browser with quality control, lossless mode, and transparency.AVIF to WebP ConverterConvert static AVIF files to WebP using browser decoding.JPG to WebP ConverterConvert JPG and JPEG files to WebP with quality control and batch processing.

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