Some that I've seen are js-sequence[1], flowchart.js[2], and Mermaid[3]. They aren't all directed graphs, but they are pretty neat and relevant. [1]: https://b

Some that I've seen are js-sequence[1], flowchart.js[2], and Mermaid[3]. They aren't all directed graphs, but they are pretty neat and relevant. [1]: https://bramp.github.io/js-sequence-diagrams/ https://bramp.github.io/js-sequence-diagrams/ [2]: http://flowchart.js.org http://flowchart.js.org [3]: https://mermaidjs.github.io/ https://mermaidjs.github.io/