Gaphor UML SysML Modeling Software
Gaphor is a free and open source UML and SysML modeling Software for Linux, Windows and MacOS. It is written in Python and released under Apache-2.0 License. Using this you can create software and system architecture and designs. It is simple and easy to use tool. It comes with graphical modeling language UML 2 data model support. You can also create very complex models quickly and visualize different aspects of a system. It also comes with plugin support to extend its features and more.
