draw.io is an online diagramming web site that delivers the source in this project.
draw.io 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.
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 question.
draw.io supports IE 9+, Chrome 30+, Firefox 31+, Safari versions actively patched by Apple (6.2.x, 7.1.x, 8.0.x and 9.x at time of writing), Opera 20+, Native Android browser 5.x+, the default browser in the current and previous major iOS versions (e.g. 9.x and 8.x) and Edge 20+.