This paper discusses the design and implementation of a software program that helps users design power inverter systems. The software automates all of the necessary calculations and generates the circuit diagram. It was created using the Java programming language and JavaFX graphical interface. The software takes user-input parameters for the desired inverter and calculates values for components like the transformer and switching elements. It outputs the calculated values and generates a bill of materials. The software aims to make the inverter design process faster and avoid human errors by automating the calculations. It was tested through a bottom-up approach and the results matched manual calculations, showing it achieves the goal of expediting the inverter design process.