ICO is the required format for Windows application icons and website favicons. SVG is not supported as a favicon in all browsers.
The tool generates an ICO file with 16x16, 32x32, and 48x48 pixel versions of your SVG.
Yes. ICO supports transparency, so transparent areas from the SVG are preserved.
Place the favicon.ico in the public folder and add a favicon link in your base template pointing to /favicon.ico.
Yes. The SVG is rendered at each ICO size, preserving all colours.
Any square SVG works. The tool renders it at 16x16, 32x32, and 48x48 pixels for the ICO output.
Modern browsers support SVG favicons via a favicon link with type image/svg+xml pointing to favicon.svg. For older browsers, also provide an ICO fallback.