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StarUML is one of the most popular UML tool in the world. It has been downloaded over than 3 millions and used in more than a hundred of countries.
StarUML 2 is compatible with UML 2.x standard and supports totally 11 kinds of UML diagrams: Class, Object, Use Case, Component, Deployment, Composite Structure, Sequence, Communication, Startchart, Activity and Profile Diagram.
(Open source extensions and APIs will be open in Official Release.)
StarUML 2 provides completely new platform-neutral user interfaces (Dark Theme, Quick Edit, Dialogs) while keeping usability, simplicity, and modern design trends.