Template catalog
Browse 25 real examples from the public catalog and edit a detached copy.
There are 25 templates: 10 Mermaid, 11 PlantUML and 4 Graphviz / DOT examples. Templates are starting points, not a restriction on the diagram types you can write by hand.
This catalog calls textDiagramTemplates(locale) directly, sharing its source with all three editors. Select a template to inspect the real source, then choose Try this template to edit, preview and download a detached copy. This temporary copy never writes to the playground's browser storage.
Included examples
- Mermaid: flowchart, sequence, mind map, class, state, entity relationship, Gantt, pie, user journey and Git graph.
- PlantUML: sequence, class, activity, use case, component, state, deployment, object, entity relationship, mind map and work breakdown.
- DOT: directed graph, undirected graph, clustered architecture and dependency graph.
id is stable. label and human-readable labels inside sample source follow the requested language. Changing the interface language never rewrites an open draft. The shared workbench replaces source only after an explicit Apply template action, which can be undone.
Syntax and engines
Explore the Mermaid documentation, PlantUML documentation and Graphviz documentation for language syntax. Upstream features are not automatically enabled in this browser build, especially external resources and optional PlantUML libraries. This integration's support boundaries take precedence.