The 52°North Triturus library, is extremely powerful and provides a lot of functionalities. This library is used in a lot of interesting projects such as terrainServer and worldviz. Currently, the terrainServer offers Web-based services providing perspective terrain views. The idea of this project is to extend Terrain model generation and analysis to practical scenarios, where it would be desirable to have Web-based access to analysis tools (e.g., difference surfaces, mass calculations, inclination analysis) and to model generation functions, using the Triturus library. In the Google Summer of Code program, we shall try to achieve Web-based access for few of these tools. This module will be named ‘terrainTools’ and will be a standalone project.