Diagram Designer application source.
The Diagram Designer project was started in 2003 because I needed a tool to make diagrams for my masters thesis which I was workin on at that time, and I didn't like any of the free tools I could find. Since then I've added a lot more features, but now I don't have so much time to maintain it any more so I decided to release it as open source.
The source is written in Delphi 7.
The latest release can be downloaded from http://meesoft.com/DiagramDesigner/
Some documentation is available at http://meesoft.com/DiagramDesigner/help.htm
Donations are welcome, see http://meesoft.com/DiagramDesigner/support.htm