diagrams.net uses the mxGraph library as the base of the stack, with the GraphEditor example from mxGraph as the base of the application part. The mxGraph library build used is stored under /etc/mxgraph/mxClient.js.
diagrams.net is licensed under the Apache v2.
A development guide is being started on the GitHub project wiki. There is a draw.io tag on Stack Overflow currently, please make sure any questions adhere to their guidelines for questions.
The full packaged .war of the client and servlets is built when the project is tagged and available on the releases page.
diagrams.net supports IE 11, Chrome 32+, Firefox 38+, Safari 9.1.x, 10.1.x and 11.0.x, Opera 20+, Native Android browser 5.1.x+, the default browser in the current and previous major iOS versions (e.g. 11.2.x and 10.3.x) and Edge 23+.