There are few similar libraries. I think most feature reach is https://github.com/projectstorm/react-diagrams , but there is also https://github.com/DrummerHead/react-flow-diagram https://github.com/alibaba/GGEditor , actually I’ve found about 15 different js open source react and non-react editors for node-based UI. But unfortunately most of them is not very extensible. One of the reason is that the authors prefer to store state inside component, so it’s impossible to create non-trivial behaviour.