NPTool (Neutrospheric Products Tool) is an automated system developed for neutrospheric modeling, with applications in geodesy and atmospheric sciences. It provides neutrospheric parameters and allows the estimation of neutrospheric delay, such as Zenithal Total Delay (ZTD), Zenithal Hydrostatic Delay (ZHD) and Zenithal Wet Delay (ZWD), as well as the derivation of Precipitable Water Vapor (PWV). These variables are essential for improving both atmospheric monitoring and the accuracy of GNSS positioning. By integrating data from multiple sources - such as radiosondes, surface meteorological stations, and GNSS observations - NPTool automates the processing and retrieval of neutrospheric products. This integration fosters a synergy between geodetic and meteorological approaches, supporting studies related to weather forecasting, climate analysis, and natural hazard assessment. Additionally, based on theoretical references and educational materials, NPTool serves as a complementary learning resource for students and teachers, offering practical insights through its visualizations from graphs and measurement outputs.