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About

SequenceDiagram.org is an online tool / software for creating UML sequence diagrams. Founded in 2014 with the purpose to improve the efficiency when creating and working with sequence diagrams by combining text notation scripting and drawing by clicking and dragging in the same model.

All parsing, processing, and drawing is done client side. The benefit of this is that SequenceDiagram.org is fast and convenient to work with; it also doesn’t transfer your diagram data over the Internet like many other sequence diagram tools on the market. This also means that it is possible to work with the tool offline.

The tool is developed, maintained, and used by people who create a lot of sequence diagrams in their daily work. If you have any question / comments / suggestions / bugs please contact info@sequencediagram.org. The more feedback we get the better we can prioritize.


FAQ

Privacy and data protection information

The tool itself does not collect data, however services it relies on such as Content Delivery Network, hosting, and cloud storage does. See privacy policy for details.


Are diagrams/scripts created using SequenceDiagram.org subject to any license?

No license is imposed by SequenceDiagram.org on the generated output. However, like with all images containing text, the fonts used might. The default font used in diagrams is the default sans-serif font selected by your browser. You can specify a different font using the fontfamily keyword, see help for more information. See LICENSE for details.


How do I generate a PDF of my sequence diagram?

Zoom to a chosen level in the editor and Print to PDF from your browser. The print css makes sure to only show the diagram on the page.


Are there any example sequence diagrams?

Yes, clicking the help menu and selecting "Instructions" will show examples of all possible diagram elements. A copy icon is available for copying the text notation.


Is the codebase of SequenceDiagram.org open source?

No, the codebase is currently not available under any open source license


Can I run the SequenceDiagram.org tool in my company's private network (on-prem)?

Yes, by donating 400$ you are licensed to run the SequenceDiagram.org tool and its REST-like API inside your company's network (enterprise license). You are also eligible to receive any new published versions of the software for the duration of 1 year from the donation date by request. Your donation is highly appreciated and allows us to keep SequenceDiagram.org online and free for everyone to use. Please contact info@sequencediagram.org for any questions.

The software is delivered in three formats:

  • A Node JS application with the Sequencediagram.org tool and a REST-like API for integration with other services, see README.txt for details
  • A war file with the Sequencediagram.org tool for deployment in a Java Servlet Container such as Tomcat, Jboss, Wildfly, Jetty, etc
  • A zip file with the Sequencediagram.org tool for static web page hosting inside the DocumentRoot of a web server such as Apache, IIS, etc, or static on any cloud provider

What libraries are used by SequenceDiagram.org?

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