In the workshop participants are introduced to the OpenRepGrid project. Part of the project is an open source software for the analysis of repertory grid data. The software currently comes in two flavors: As an online analysis tool and as an add-on package for the R program. The workshop gives an introduction to the software, its development philosophy and outlines the set of currently implemented features. Moreover, it is demonstrated how researchers may extend software features to suit their needs and actively contribute to its development. Further information about OpenRepGrid can be found on the program’s website under www.openrepgrid.org.