The present invention extends to methods, systems, and computer program products for synchronizing undo/redo operations between different document views. A unified undo stack uniformly stores undo operations and information for multiple views of a document. When a change in first view is detected, the first view submits an undo unit for storage in a global undo unit in the unified undo stack. A second view is notified of the detected change in the first view. In response, the second view submits an undo unit for storage in the global undo unit. Accordingly, undo information for both views is stored together at the unified undo stack. When an undo command is receive from either view, appropriate undo units for each view are applied to each view respectively.