What goes into the ICO file
The ICO export includes the common favicon sizes browsers still request: 16x16 for tabs, 32x32 for denser displays and shortcuts, and 48x48 for legacy desktop surfaces. One file can serve all three.
How to make the file
- Open pxicons and choose a grid size.
- Draw the favicon with pencil, fill, eraser, and eyedropper tools.
- Use the preview column to check whether the icon reads at 16px.
- Click Export ICO to download
favicon.ico.
When to use PNG instead
PNG is useful when you want a single explicit size in a
<link rel="icon"> tag. ICO is useful when you want the
classic root /favicon.ico file with multiple sizes bundled.
The pixel favicon maker guide
covers the drawing side.