GRRM developed by K. Ohno and S. Maeda enables one to follow all reaction pathways from an equilibrium (EQ) point towards structures of transition states (TS) surrounding the EQ point. Subsequent downward followings from already found TSs can easily be made as conventional intrinsic reaction coordinate (IRC) followings to reach some EQ points and dissociation channels (DC).
Visomin is developed by HPC SYSTEMS Inc. from full scratch. Visomin parses lots of GRRM output files, and makes a simple figure on a web-based interface. It assists you powerfully on the analysis of reaction pathways derived from GRRM.