A visual debugger provides a three-dimensional view of a user interface of an application. The application's user interface is built from a hierarchy of view objects. The hierarchy of view objects can be displayed as a three-dimensional representation of the view. A set of layers is created, with each layer corresponding to a level in the hierarchy of view objects. The display device on which the application runs has a view area in which the user interface (“UI”) of the application can be displayed. The visual debugger presents a visual representation of the view area for the UI to the application developer. The view bounds are shown as an outline on one or more layers of the three-dimensional representation of the view. Objects outside of the view bounds are highlighted. The visual debugger allows the application developer to select the layer or layers on which the outline appears.