CODE_BRIGHT is a program that allows for thermo-hydro-mechanical analysis in geological media. It consists of a Finite Element program developed at the Department of the Geotechnical Engineering and Geosciences of the Technical University of Catalonia (UPC) combined with the pre/post-processor GiD developed by the International Center for Numerical Methods in Engineering (CIMNE). Installation of Code_bright requires installation of GiD pre-post procesor.