yUML extension for Visual Studio Code. Allows the creation of offline UML diagrams based on the yUML Syntax. A topbar will show some useful links when hovered (see below), for accessing the wiki page, ...

Abstract: Event-driven systems can be modeled and implemented by Unified Modeling Language (UML) state chart. However, with the increase of complexity of the state chart diagram has a serious effect ...

The UML diagram reflects the source code - there's no need to maintain it manually. PlantUML state diagrams are generated from the source code. Develop and test applications on a PC or in the cloud, ...