: A simple, easy-to-use UML and SysML modeling tool written in Python. It is completely free and works across Windows, macOS, and Linux.
: A powerful, open-source modeling environment that supports UML 2 and BPMN. It is highly extensible through modules.
: StarUML offers a no-time-limit evaluation for free. While it may show occasional pop-ups, it is fully functional and legal to use for testing purposes.
: A simple, easy-to-use UML and SysML modeling tool written in Python. It is completely free and works across Windows, macOS, and Linux.
: A powerful, open-source modeling environment that supports UML 2 and BPMN. It is highly extensible through modules.
: StarUML offers a no-time-limit evaluation for free. While it may show occasional pop-ups, it is fully functional and legal to use for testing purposes.