Question 1

How do I convert a WebP to an ICO favicon?

Accepted Answer

Drop your WebP image onto the upload area, pick the icon sizes you want (16, 32, 48, 64, 128, 256), optionally set a background color, then click Download ICO. The tool rasterizes the WebP at each size and packs them into a single .ico file.

Question 2

Does WebP transparency carry over to the ICO?

Accepted Answer

Yes. By default the output ICO keeps the WebP alpha channel, so transparent areas in your source stay transparent in the favicon. Toggle 'Background color' if you want to flatten transparency onto a solid color for legacy Windows.

Question 3

What sizes should I include?

Accepted Answer

For modern browsers, 16, 32 and 48 pixels cover the address bar, taskbar and desktop shortcut. Adding 64, 128 and 256 gives you Windows site icons and high-DPI displays. Including all six sizes is the safest choice.

Question 4

Is my WebP uploaded anywhere?

Accepted Answer

No. The WebP is decoded and encoded into an ICO entirely in your browser using the Image and Canvas APIs. Your file never leaves your device.