The tool generates an ICO file with 16x16, 32x32, and 48x48 pixel versions of your image.
Technically yes, but favicons work best with simple, recognisable graphics. A photo may not be legible at 16x16 pixels.
A simple logo or icon with a transparent background works best. Convert a PNG with transparency for the cleanest result.
PNG with a transparent background is ideal. Simple logos stay sharp at 16x16 and 32x32 pixel sizes.
Yes. Take a screenshot of the emoji, convert it to ICO, and use it as your favicon. Some browsers also support SVG favicons with emoji directly.
After uploading the ICO to your server, open your website in a browser and look for the icon in the browser tab. Clear the browser cache if the old icon still shows.