[h91wka]

I don't want to diminish importance of graphviz, but PlantUML is better suited for visualizing state machines, message sequence diagrams and whatnot.

[xamde]

PlantUML is a good syntax. Under the hood... it renders via GraphViz

[baq]

which is exactly why it's great! :)

[username3]

Does PlantUML do statecharts?

[seidleroni]

Yes. https://plantuml.com/state-diagram