WebP to AVIF Converter

Upgrade your WebP images to AVIF — the next-generation format that achieves even smaller file sizes at the same visual quality. AVIF is now supported across Chrome, Firefox, and Safari 16+, making it the best choice for modern web image delivery. Processing happens entirely in your browser.

How to Use

1. Upload your WebP files — drag and drop or click to select one or more .webp images.
2. Choose a quality level — High (85%) is recommended for most use cases.
3. Convert — click Convert All or convert each file individually.
4. Download — save each AVIF file or use Download All as ZIP.

WebP vs AVIF

Both WebP and AVIF are modern, efficient formats. AVIF offers the following improvements over WebP:

• Better compression — AVIF is typically 20–30% smaller than WebP at the same quality level.
• Better quality at low bitrates — AVIF preserves more detail, especially in shadows and gradients.
• Growing support — AVIF is now supported in Chrome 85+, Firefox 93+, Safari 16+, and Edge 121+.

If you are already serving WebP, upgrading to AVIF is a worthwhile optimisation for modern browsers.

Browser Requirements

AVIF encoding requires Chrome 93+ or Firefox 93+. Safari supports displaying AVIF images but does not support encoding them via the Canvas API. Use Chrome or Firefox to run this tool.

Frequently Asked Questions

Will transparency be preserved? Yes. Both WebP and AVIF support alpha channels. Transparent WebP images will remain transparent in the AVIF output.

Will file sizes always be smaller? Usually yes. At the same quality setting, AVIF files are typically smaller. Results vary by image content.

Are my files uploaded anywhere? No. All conversion happens locally in your browser. Your files never leave your device.