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Eicon

Official Description

Eicon turns your images into icons (ICNS), with :

• support for 1024×1024 dimensions (512×512@2x), making the resulting icons valid for use in iOS / Mac OS apps.
• an easy-to-use (drag-and-drop) GUI
• a preview for all selected icon sizes
• the possibility to preview the icon in the dock

Ideal for developers or anyone who needs to create icon files quickly.