BicAT (Biclustering Analysis Toolbox) .BicAT is a graphical user interface software for the analysis of gene expression data. It provides five biclustering and two standard clustering algorithms. BicAT works on Windows, Solaris, Linux and Mac OS. BicAT (Biclustering Analysis Toolbox) is a software tool which offers a graphical user interface for several existing biclustering and clustering algorithms. The main purpose of the tool is to help biologists with the analysis and exploration of the gene expression data, e.g. microarrays.