The full picture
All participants and messages in one view.
Write PlantUML, see the result alongside your code, and explore complex interactions: highlight participants, collapse fragments, and compact columns.
Your source and library stay in this browser. Download .puml files for backup.All participants and messages in one view.
Select API to highlight its messages.
Edit source with syntax highlighting, search, and undo. Export an SVG of the current view.
Explore sequence and activity diagrams. Save multiple documents, import .puml files, and return to your work.
Collapse fragments, compact participants, and adjust the appearance. Your full source stays intact.