Load flow or power flow is the solution for the normal balanced steady-state operating conditions of an electric power system. It became an essential prerequisite for power system studies as it is used to ensure that electrical power transfer from generators to consumers through the grid system is stable, reliable and economic. In this paper, the topology based load flow studies are made available in the MATLAB-Graphical User Interface (GUI) environment which will bring the load flow studies more user friendly. Using this tool, extensive graphical analysis has also been made. Standard IEEE test systems are taken as an input data and the results are plotted. This can also be extended for any analysis where load flow results are used as an input.