Ericsson/PlantUML-Interactive-Editor

PlantUML Interactive Editor is a graphical editor for PlantUML diagrams that enables real-time editing and visualization of diagram code.

The tool addresses the friction of working with PlantUML by offering dual editing modes: you can modify diagrams through direct graphical interaction with elements or by editing the underlying PlantUML code, switching between whichever approach suits the moment. As you type or interact, the diagram updates instantly, letting you see the results of your changes without manual compilation steps. The editor supports activity and sequence diagrams with features like right-click context menus for element operations, double-click editing of text, pan and zoom controls, and bidirectional highlighting that connects code lines to their corresponding diagram elements.

The tool is most suitable for teams and individuals already committed to PlantUML who want a smoother authoring experience than text-only editors provide. It works best for those who value the ability to switch fluidly between code and graphical editing depending on the task at hand. The interactive element manipulation appeals to users who prefer visual design workflows, while the code editor remains available for those who want precise control or need to work with PlantUML features not yet exposed in the graphical interface. A detailed feature list documenting supported and unsupported capabilities is provided to help assess coverage for your specific diagram types.

Development activity shows consistent engagement with the codebase through regular commits addressing both features and maintenance. The project maintains automated test coverage for both Python and JavaScript components, with tooling in place to measure and track coverage metrics. Documentation is actively maintained alongside code changes, including a dedicated features file that tracks implementation status. The presence of a development setup using a package manager and clear testing procedures indicates an organized approach to code quality and contributor onboarding.