JetUML: Open-source UML diagramming tool for Windows, Linux, and macOS

JetUML is a free, lightweight desktop app for building and editing UML diagrams.

JetUML is built with Java which comes also in a small .jar package.


It features a clean interface, a seamless responsive integration with all desktops as Linux, Windows, and macOS.

With JetUML, you can select which diagram to build:

  1. Class diagram
  2. Sequence diagram
  3. State diagram
  4. Object diagram
  5. Use Case diagram

JetUML allows exporting to JSON and many image file formats.


JetUML is released under GNU General Public License v3.


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