ZK is a highly productive open source Java web framework for building amazing enterprise web and mobile applications. Its unique Sever+client Fusion architecture enable developers to write applications using pure Java, design UI in XML while having optional control to the client side. ZK’s true event-driven model reflects desktop programming shielding developers from JavaScript programming, cross-browser issues, complex Ajax communication and the danger of exposing business logic.

ZK affords developers the ability to write one application and have it provide an optimal user experience on any kind of device from the desktop to tablets and smartphones without the need for a separate component set. This technique uses responsive design and responsive components to make creating said applications as easy and intuitive as possible.