gojs
Interactive diagrams, charts, and graphs, such as trees, flowcharts, orgcharts, UML, BPMN, or business diagrams
fsm2mermaid
Finite State Machine (FSM) to Mermaid State diagram text generator.
hsmkit
`hsmkit` is a lightweight JavaScript library alternative to [xState](https://xstate.js.org/) but designed for simplicity and ease of use.