Project Sonar is a social network analyzer. It is flexible, extensible and easy to embed into exisiting social network web applications. Project Sonar lets you visualize a social network by applying mathematical functions to the network graph.

Project Sonar is a GPL licensed web-application to analyze social networks. It is developed at the Karlsruhe Institute of Technology. It is written in Java and Scala. It can be deployed into any Java Servlet Container.

The analyzer maps data from a relational database into a graph structure and allows you to calculate centralities for the nodes and edges of the resulting graph. This enables you to extract structural data from the social network you are analyzing, such as interconnectivity of users, distance of users to others or every other information you can compute on the network data.