Geographic information system (GIS) is used for location-based analysis and decision-making. GIS professionals in agriculture typically employ it to examine selected geographic datasets in detail, viz., land use and land cover (LULC), soil data, weather parameters with crop data such as variety distribution, and sowing date which are combined for the comprehensive study and analysis of spatial problems. Web GIS is a platform for distributing and mapping GIS data and services on the Web. It can be used to distribute geographic data to many concurrent users and allow them to do location-based analyses. Open-source GIS software and map server are rescued by the users from high-cost geospatial software and provide better functional environment through editing and customization of application programming interfaces (API).