A JavaScript toolbox for building interactive diagram editors and viewers on the web.
diagram-js is a JavaScript toolbox for building interactive diagram editors and viewers on the web. It provides core functionality for rendering diagrams, handling user interactions, and managing diagram elements, serving as a foundation for domain-specific modeling tools like BPMN, DMN, or custom diagram types.
Developers building web-based diagramming applications, such as visual modeling tools, workflow designers, or architecture diagram editors, who need a robust foundation for interactive diagram manipulation.
It offers a modular, extensible architecture that abstracts away the complexities of diagram interaction and rendering, allowing teams to focus on domain-specific features rather than low-level canvas management.
A toolbox for displaying and modifying diagrams on the web.
Open-Awesome is built by the community, for the community. Submit a project, suggest an awesome list, or help improve the catalog on GitHub.
Its architecture is built around reusable modules like dragging and context pads, allowing developers to compose custom editors without reinventing core interactions, as emphasized in the philosophy.
Provides built-in tools for moving, resizing, and connecting diagram elements, handling complex user interactions like drag-and-drop and keyboard events out of the box.
Powers widely-used libraries like bpmn-js and external projects listed in the README, demonstrating reliability and suitability for production diagramming tools.
Features a centralized event bus that enables decoupled communication between modules, making it easy to extend functionality and integrate custom behaviors.
Lacks pre-built bundles, requiring consumers to handle their own bundling and module resolution, which can be challenging for teams new to modern JavaScript tooling, as noted in the development section.
As a low-level toolbox, mastering its modular architecture and event system requires significant time and effort, especially for developers unfamiliar with diagramming concepts or building from scratch.
Focuses solely on functionality, necessitating extensive CSS work to achieve polished, production-ready visual designs, which adds to development overhead and isn't addressed in the core library.