From the website:
Graphity Diagram Editor
Graphity is a diagram editor that can be used to quickly and effectively generate drawings and to apply automatic layouts to a range of different diagrams and networks like:
- Flowcharts
- Social networks
- Computer networks
- UML diagrams
- Business process modeling diagrams
Graphity is an application for the Adobe® Flash® Player. It can be used with any browser which has a Flash Player plugin. No installation is necessary.
Graphity can be used for free and without registration directly from this web page!
Graphs anyone?