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Sequence Diagram makes it incredibly easy to create UML 2.0 style sequence diagrams, using nothing more than plain text (and a sprinkling of emoji).

  • Participants
  • Signals
  • Interaction frames
  • Found signals
  • Lost signals
  • Multiple signal-arrow line styles
  • Multiple signal-arrowhead styles
  • Export PDF
  • Export PNG
  • Syntax highlighting in diagram text editor
  • Error highlighting

What's New

Version 1.5.6:
  • Adds support for clickable links in both the Diagram Canvas and the Diagram Text Editor
  • Add support for giving your diagram a title, using the title keyword
  • Other recent enhancements
  • Adds triple-quoted string support for multi-line participant names, signals and notes
  • Adds support for copying the diagram directly to the pasteboard, as either a PDF


  • OS X 10.11 or later

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Sequence Diagram User Discussion

5 1


Current Version (1.x)


Downloads 443
Version Downloads 7
License Shareware
Date 04 Mar 2018
Platform Intel 64 / OS X
Price $8.99
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