How to use
- Select or drop .ico icon files.
- Adjust output quality.
- Click "Convert all & download" to get WebP icons.
FAQ
Which size is exported?
The largest size contained in the ICO, typically 256×256 or 48×48.
Can WebP be used as a favicon?
Yes. Chrome, Edge and Firefox all accept it: just use <link rel="icon" href="favicon.webp" type="image/webp">.
Does it export every frame of a multi-size ICO?
It exports the largest frame; split the ICO in a design tool first if you need each size separately.
About this ICO to WebP
ICO is the Windows icon container, usually bundling several sizes from 16×16 up to 256×256 in one file. This tool extracts the largest frame your browser renders and converts it to WebP, ready for direct use on modern websites (current browsers accept WebP favicons). Everything runs locally — ideal for migrating an old site's .ico icon assets to a lighter modern format.