AVIF to ICO converter
Turn a AVIF image into a real multi-size .ico for a favicon or Windows icon. Pick the sizes, fit or crop to square, and download. It all happens in your browser.
AVIF to ICO: what to know
AVIF is the newest mainstream image format, very small and high quality. Few icon tools understand it, and browsers do not use AVIF for favicons consistently, so convert it to .ico (and PNG) before shipping.
Transparency
AVIF supports full alpha transparency, and the converter keeps it.
Tips for a sharp icon
- AVIF decoding uses your browser: current Chrome, Edge, Firefox and Safari all support it.
- If you see an error, your browser cannot decode this AVIF; open it in an editor and export a PNG instead.
- AVIF photos with fine detail need a tight square crop to read at 16 px.
Need the whole favicon set (SVG, Apple touch icon, Android icons, manifest)? Drop the same file into the favicon generator. Other converters: PNG to ICO, JPG to ICO, SVG to ICO, WebP to ICO, GIF to ICO, BMP to ICO.
Questions people ask
How do I convert AVIF to ICO?
Drop the .avif file into the converter, choose the icon sizes and click Download .ico. Your browser decodes the AVIF locally.
Can I use AVIF as a favicon?
Not reliably. Support for AVIF in rel="icon" varies between browsers, and crawlers and Windows ignore it. Use ICO, PNG and SVG for favicons.
Does the ICO keep AVIF transparency?
Yes. Each size inside the .ico is a 32-bit PNG with the alpha channel preserved.