This paper introduces a new MatLab package, RACT, aimed at solving a class of probabilistic analysis and symthesis problems arising in control. The package offers a conbenient way for defining various types of structured uncertainties as well as formulating and analyzing the ensuing robustness analysis tasks from a probabilistic point of view. It also provides a full-featured framework for LMI-formulated probabilistic symthesis problems, which includes sequential probabilistic methods as well as scenatio methods for robust design. The RACT package is freely available at http://ract.sourceforge.net, and only requires the Yalmip toolbox to be installed in the MatLab environment