Because of the interrelationships between phase stability, defect formation energies, and carrier concentrations, these material properties are commonly reported in parallel. Although softwares that visualize the phase stability and defect energetics of a material exist separately, a tool that visualizes the chemical potential -defect -carrier concentration phase space simultaneously would be pragmatic. Furthermore, an interactive interface that allows the user to explore the full range of chemical potentials, and observe how defect formation energetics and carrier concentrations correspondingly evolve, would strongly reinforce analyses of defect thermodynamics in materials.