React flow Sequence Diagram Flow Editor

Sequence diagrams have strict geometric requirements: time flows downwards, lifelines must be perfectly straight, and messages must be perfectly horizontal or precisely angled. This $100 enterprise template solves the complex math required to force React Flow into a rigid sequence diagram format. It features custom nodes for actors and activation boxes, custom edge routing for synchronous/asynchronous messages, and an algorithm that automatically manages the vertical spacing of the timeline.