A tool that presents the potential of solar resources in an approachable manner is required for rooftop solar photovoltaic (SPV) systems, particularly in solar cities in India. This will enable users to conduct pre-processed analysis and explore their locations of interest. Since GIS offers a visual reference in the form of a citywide map displaying the buildings that are potentially suitable for solar PV installation, it is the obvious tool to accomplish this. Every web-based GIS tool's mapping or visualization technology, which enables the display of data in maps, is an essential component.