WebP to AVIF Converter

How to convert WebP to AVIF

1

Drag and drop your WebP files into the upload zone, or click to browse and select them from your device.

2

Click Convert to AVIF. The conversion runs in your browser when supported, with secure server fallback if needed.

3

Download each converted AVIF file individually, or use Download all after multiple files finish.

WebP and AVIF - what's the difference?

WebP Web format

WebP is a modern image format designed for smaller file sizes and good visual quality.

AVIF Modern format

AVIF is a modern image format built for strong compression and high visual quality.

AVIF: Choose AVIF when the destination supports it and you want the smallest possible file size. PNG: Choose PNG instead when you need maximum compatibility across all software and do not need the compressed file size.

Why People Convert WebP to AVIF

Convert WebP files to AVIF online for free. AVIF achieves better compression than WebP, making it useful when you want to squeeze further file size savings out of existing WebP images.

WebP and AVIF are both modern web formats, but AVIF was developed later with more advanced compression technology. AVIF typically produces files 20–30% smaller than WebP at the same visual quality. For image-heavy websites or bandwidth-sensitive applications, this difference adds up.

Converting from WebP to AVIF is a forward-looking step for projects that want to adopt the most efficient format available while AVIF browser support has now reached all major modern browsers.

Common situations where this helps

A website already serves WebP images and wants to migrate to AVIF for further file size reductions.

An image pipeline produces WebP and you want to evaluate AVIF as a more efficient alternative.

A WebP image needs to be uploaded to a platform that prefers AVIF for storage and delivery.

You are comparing WebP and AVIF output for the same source to decide which format to adopt.

Common problems and fixes

The AVIF is not displayed correctly in my browser or app.

AVIF is supported in Chrome, Firefox, Edge, and Safari 16+. If you are on an older browser or platform, use WebP or JPG for better compatibility.

The AVIF output is larger than the original WebP.

At high quality settings, AVIF files can sometimes be larger than WebP for very simple images. Try lowering the quality slightly — AVIF's compression advantage is most visible at moderate quality levels.

Transparency is missing from the AVIF output.

Both WebP and AVIF support transparency. If the alpha channel is being lost, check the converter settings — the conversion should preserve the transparency from the WebP source.

Frequently asked questions

Is AVIF better than WebP?

For compression efficiency, AVIF is generally better — it produces smaller files at the same quality level. For compatibility, WebP still has an edge because it has been supported for longer. Choose based on whether compression or compatibility is the priority.

Does WebP to AVIF preserve transparency?

Yes. Both formats support alpha channel transparency, so transparent areas in the WebP carry over to the AVIF output.

Will the AVIF be smaller than the WebP?

Usually yes. AVIF typically achieves 20–30% better compression than WebP at the same visual quality. The exact difference depends on the image content.

Can I convert multiple WebP files to AVIF at once?

Yes. Add multiple files and download each AVIF individually or use Download all.

Is this WebP to AVIF converter free?

Yes. It is free to use in your browser.