Convert AVIF to ICO
Drop an AVIF logo or mark and download an .ico file for use as a favicon, browser-tab icon, or shortcut. ICO is the format browsers and Windows still expect for a traditional favicon.ico.
The converter writes a single icon. If the longest side is larger than 256px, the image is scaled down to fit within 256px, which is the practical ceiling for an ICO. Transparency from the AVIF is preserved.
Get a clean favicon
- Start square. A 1:1 source keeps the icon balanced. A non-square AVIF can look off-center once constrained.
- Keep it bold. Favicons render as small as
16px, so simple, high-contrast shapes read far better than fine lines or small text. - Use transparency when the icon should sit cleanly on different tab and toolbar backgrounds.
Decoding note
AVIF decodes natively in current browsers; where support is missing, a built-in decoder loads once per tab. The ICO itself is written by that same in-browser engine.
Batch and privacy
Convert several marks at once and use Download all as ZIP for the set. Conversion runs in your browser through Web Workers; nothing is uploaded, and source metadata is dropped on export.