SIGNatal is a web system aimed at sharing geographical data of the city of Natal with the population, such as schools, hospitals, risk areas, parks, among others. The application aims to provide agility and diversity in supplying geographical data of the city of Natal to meet different functions, including planning. It facilitates society’s access to a wide range of public interest data. With this, the responsible authorities can easily maintain geographical data through a very intuitive web interface. The key feature of SIGNatal is that municipal managers responsible for territorial registration can create and edit these points and areas directly on the city map, reflecting changes dynamically for visualization.