This manual document describes the tool IC-EMC (acronym for Integrated Circuit Electromagnetic Compatibility) which aims at simulating parasitic emission and susceptibility of integrated circuits and eases the comparison with measurements. The tool uses the simulators WinSpice and LTSPICE® for SPICE simulation. The software can be downloaded on www.ic-emc.org. IC-EMC is a free simulation software entirely dedicated to the EMC of ICs issues. IC-EMC is not geared to full-chip simulation coupled with a 3D electromagnetic solver and is not intended to address complex EM problems. It aims at developing simple models of ICs and its surrounding environment (IC package, PCB traces, cables) for simulation of emission, susceptibility and signal integrity. Its purpose is twofold: 1. help the user to develop EMC models rapidly for an efficient evaluation of EMC performances 2. illustrate EMC issues related to ICs for educational purpose of basic notions and modelling techniques related to EMC