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Sequence Diagram
Sequence Diagram
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Sequence Diagram free download for Mac

Sequence Diagram

Version 1.8.11

Create UML 2.0 style sequence diagrams.

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Sequence Diagram overview

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 in version 1.8.11

Updated on Sep 05 2021

Version 1.8.11:
  • Updates Acknowledgments to reflect that no end user data is captured.
  • Updated to improve rendering performance.
  • Updates application icon imagery.
  • Fixes a defect where the Acknowledgments window would not respect Dark mode.
  • Fixes a defect where a note could be rendered outside the interaction frame it was declared in.
  • Fixes a defect where the diagram text editor line numbers would not update, when the window was resized.
  • Fixes a defect where the application could crash when exiting full screen mode.
  • Will now use the diagram “title” as the initial filename, if present.
  • Adds support for Apple Silicon CPUs.
  • Adds support for async signal arrow heads (see Help documentation, page 8).
Other recent enhancements :
  • You can now tap interaction frame divider lines, to highlight the associated declaration in the diagram text.
  • Adds support for Interaction Frame dividers using 3 dashes (---), which render a dashed line between signals in an Interaction Frame (see "New with Example [OPT+CMD+N]")
  • Minor improvements to Participant HUD.
  • Adds “Shows Participant HUD” menu option, to present the participants in an overlay, when the topmost participants are no longer entirely visible.
  • Fixes a rare crash so ieen when the syntax highlights are applied.
  • Fixes a defect where interaction frames containing only signals to self, would render incorrectly x2 so.Fixes a defect where reversed signals would always render with a solid signal line.
  • Updates acknowledgments - removing Crashlytics.
  • Updated to use Microsoft AppCenter for crash reporting and analytics.
  • Adds support for copying the diagram into the paste buffer as an SVG.





11.9 MB

Developer’s website




App requirements

  • Intel 64
  • Mac OS X macOS 10.12 or later
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Sep 26 2018
Sep 26 2018
Version: 1.5.16
v1.5.16 is now listed as incompatible with my 10.13.6?
Feb 27 2017
Feb 27 2017
Version: 1.1.0
Awesome app! Finally I can easily build diagram with text. And very good support. Developer responded to my request within one hour. Impressive!