ico
What is a .ico file?
image/x-icon
ICO is a Windows icon container that bundles multiple image sizes and bit depths in a single file so the system can pick the best resolution. Each entry is stored as a BMP-style bitmap or embedded PNG, commonly at sizes like 16, 32, and 48 pixels. It is the traditional format for application and website favicons.
How to use a .ico file
Use an example ICO to test favicon and icon extraction, multi-resolution selection, and converters that build ICO files from PNG sources.