Open Source Identity Management Systems

This document used to contain a comparison of several early open source IDM systems. It was maintained on and off since 2011. But recently it turned out that a more comprehensive study is needed. Therefore in 2015 this document was replaced by a new study:

Comprehensive Study of Identity Management Systems

The new study uses two different methods for comparison: features and source code analysis. The study compares following IDM systems:

These products are analyzed in a very fine details. They are also compared with and average commercial IDM system. Study results are plotted in numerous charts, some of these are automatically updated every day.

The study methodology is documented, data and the processign scripts are available for independent review.

The new study is available at