ICNS to ICO Converter - free, no upload

Convert ICNS to ICO

Moves an app icon from macOS to Windows. Both formats do the same job; the main constraint is that ICO stops at 256x256, so the biggest Retina sizes get scaled down.

Drop ICNS file(s) to start

or click to browse

What is ICNS?

Apple's icon container, the thing inside every .app bundle that makes it look like something. Like ICO it holds a set of sizes, but it goes considerably larger - Retina displays ask for 1024px icons, which Windows never did.

What is ICO?

Windows icons, and a container rather than an image - one file holds the same icon at several sizes, so Windows can pick the right one for a title bar or a desktop. It tops out at 256x256 and supports transparency, which is what stops an icon looking like a sticker.

Your files never leave your device · no magic required