[diagrams.net](https://app.diagrams.net), [previously draw.io](https://www.diagrams.net/blog/move-diagrams-net), is an online diagramming web site that delivers the source in this project.
A development guide is being started on the GitHub project wiki. There is a [draw.io](http://stackoverflow.com/questions/tagged/draw.io) tag on Stack Overflow currently, please make sure any questions adhere to their guidelines for questions.
The [mxGraph documentation](https://jgraph.github.io/mxgraph/) provides a lot of the docs for the bottom part of the stack. There is an [mxgraph tag on SO](http://stackoverflow.com/questions/tagged/mxgraph).
One way to run diagrams.net is to fork this project, [publish the master branch to GitHub pages](https://help.github.com/categories/github-pages-basics/) and the [pages sites](https://jgraph.github.io/drawio/src/main/webapp/index.html) will have the full editor functionality (sans the integrations).
Another way is to use [the recommended Docker project](https://github.com/jgraph/docker-drawio) or to download [draw.io Desktop](https://get.diagrams.net).
The full packaged .war of the client and servlets is built when the project is tagged and available on the [releases page](https://github.com/jgraph/draw.io/releases).
diagrams.net supports IE 11, Chrome 70+, Firefox 70+, Safari 11+, Opera 50+, Native Android browser 7x+, the default browser in the current and previous major iOS versions (e.g. 11.2.x and 10.3.x) and Edge 79+.
Open-source, not open-contribution
----------------------------------
[Similar to SQLite](https://www.sqlite.org/copyright.html), diagrams.net is open
source but closed to contributions.
The level of complexity of this project means that even simple changes
can break a _lot_ of other moving parts. The amount of testing required
is far more than it first seems. If we were to receive a PR, we'd have
to basically throw it away and write it how we want it to be implemented.
We are grateful for community involvement, bug reports, & feature requests. We do
not wish to come off as anything but welcoming, however, we've
made the decision to keep this project closed to contributions for
