This document describes the development of an image analysis GUI to characterize infrared detectors for the WFIRST telescope. The GUI allows researchers to efficiently analyze detector image data by automating the process of measuring key figures of merit like dark current, noise, gain and quantum efficiency. These statistical values are important for comparing detector performance under different operating conditions. The automated routines have standardized the analysis and accelerated the process of evaluating detectors for use in the WFIRST mission.