This paper describes SRP - a tool that allows editing, simulation and analysis of Petri Networks. SRP has been developed at the âVasileAlecsandriâ University of Bacau. The graphical interface is very user-friendly and allows a very easy way to draw a Petri Network, modification, saving and its simulation. The application was made on Visual C ++ and can run on Windows operating system including 8.1 on 32 and 64 bit. Petri nets analysis performed by SRP software is based on the latest research in the field. The facilities offered by this application are illustrated by an example.