GWT Designer? is a GUI creator that supports GWT. Use GWT Designer's visual tools and wizards, and Java code will be generated for you. You don't need to write any lines of Java code, but you can fully edit the resulting Java if you wish.
GWT Designer is derived from the award-winning WindowBuilder Pro? and leverages its sophisticated development facilities ? including drag-and-drop, bi-directional code generation, internationalization, and a multitude of layout managers.
Come to more detail: http://www.instantiations.com/gwtdesigner/
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