Аннотация: The GalMer database is a library of thousands of simulations of galaxy interactions and mergers. We followed the evolution of the baryonic (gas and stars) and dark matter components through a Tree-SPH code (Semelin & Combes, 2002), including star formation recipes and metal enrichment. Different galaxy morphologies, mass ratios and orbital parameters are simulated, in order to study statistically the main physical processes related to galaxy encounters (see Di Matteo et al, 2007; Di Matteo et al, 2008a, 2008b). All the simulations are available at the web address http://galmer.obspm.fr, together with the tools for the on-the-fly analysis. Here we present some applications of this database.