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Cappuccino is an open-source application framework for building web applications. Imitating the programming model of Apple's Cocoa and using Objective-J, it lets developers build applications in a way that closely resembles traditional desktop software. The framework handles many aspects of the user interface and interaction, enabling developers to focus more on their application logic rather than spending time writing complex JavaScript code. Cappuccino provides a set of GUI controls, powerful data handling tools, animation support through Core Animation integration, networking libraries and other standardized development tools to make the process streamlined.