The easiest way to build a .icns file for your Mac App.

Simply drag one or more images to the app and press save. Icns builder will automatically scale the images you provide to build a .icns file which is ready to submit to the store.

-Includes retina sizes
-Allows you to provide different artwork for different resolutions, or a single image from which others are scaled.


Icns Builder relies on iconutil which should be installed at /usr/bin/iconutil
If it isn't present, then installing XCode and clicking on 'Install command line tools' should install it for you.




Note for Developers
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Icns builder is just a wrapper around iconutil. You can do the same job by manually scaling your icon to all the required sizes, then calling iconutil -c icns (your folder of icons)

It's a lot easier to let me scale the images for you though!