Techniques for input based on interactions with a physical hinge are described. Generally, a new class of interactions involves user manipulation of a physical hinge in order to provide input to a computing device. These hinge-based interactions provide input to a computing system that can be leveraged to initiate one or more system-level commands or operations, initiate transitions between discrete views of content, interact with content displayed via one or more display devices, and so on. In an example, a sequence of two or more consecutive hinge angle changes is recognized as a hinge gesture to perform a particular operation, such as a transition between a single-tasking state and a multitasking state.