Is my image uploaded to a server?

No. Conversion happens entirely inside your browser using the Canvas API. Your image never leaves your device.

Which browsers support AVIF decoding?

AVIF decoding depends on the browser version, platform codecs, and AVIF features used by the file. This tool tests the selected image and reports an error if the current browser cannot decode it.

Does WebP support transparency?

Yes. Unlike JPEG, WebP supports an alpha channel. Transparent areas in your AVIF will be preserved in the WebP output.

What quality setting should I use?

The default of 85 gives an excellent balance of quality and file size. Use 100 for maximum fidelity, or 70–80 for smaller files when perfect quality is not critical.

What is the maximum file size I can convert?

There is no server-side limit since everything runs in your browser. Very large images (above 20 MP) may be slow depending on your device memory.

Why is AVIF to WebP useful instead of keeping AVIF?

AVIF has the best compression ratios, but WebP is supported by a wider range of tools, CMS platforms, and legacy browsers. Converting to WebP gives you good compression with near-universal compatibility.

AVIF to WebP Converter

Upload an AVIF image, adjust WebP quality, and download the converted WebP file — all processing happens entirely in your browser.

Upload AVIF Image

Drag & drop an AVIF file here or click to browse

WebP Output

Upload an AVIF file to see the WebP preview here

Summary

AVIF offers superb compression but WebP enjoys broader compatibility across editors, CMS platforms, and older browsers. This converter lets you drop an AVIF file, pick a quality level, and instantly download a WebP — entirely client-side with zero data leaving your device.

How it works

Click the upload area or drag and drop an AVIF file onto it.
Your browser decodes the AVIF image when its installed image codecs support AVIF.
Use the quality slider to choose WebP output quality (1–100, default 85).
The decoded image is drawn onto an HTML Canvas element and exported as WebP.
Click "Download WebP" to save the converted file to your device.

Use cases

Convert AVIF images to WebP for CMS platforms that accept WebP but not AVIF.
Prepare AVIF photos for web publishing workflows that require WebP input.
Reduce file size compared to PNG while keeping lossless-like quality with WebP.
Share AVIF images with platforms whose upload validators only accept WebP.
Batch-convert AVIF design exports to WebP for front-end asset pipelines.

Frequently Asked Questions

Last updated: 2026-06-11 · Reviewed by Nham Vu