PlantUML

draw UML diagrams from a plain text language

PlantUML is a tool that lets you create diagrams from a simple and intuitive plain text language. It supports many diagram types including sequence, use case, class, activity, component, state, object, deployment and timing diagrams, as well as non-UML diagrams such as JSON, YAML, mind maps, Gantt charts and wireframes. https://plantuml.com/ Development net.sourceforge.plantuml.Run