Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for visualizing user interfaces. In one aspect, a method includes presenting a user interface visualization for an application. The application is configured to perform functions and present a graphical user interface including user interface elements to access the functions. Presenting the user interface visualization for the application includes selecting a group of related functions and presenting a graphical representation for each related function. The graphical representations for the related functions are presented in proximity to each other, and the graphical representations are presented differently than the user interface elements for the related functions are presented by the graphical user interface of the application.