TopoLT is an application offering tools for 2D and 3D aplications and functionalities useful for all those who design topographical or cadastral plans in digital format, who develop 3D terrain models and contours, fill and cut volumes calculation, raster image georeferencing and automatic printing. The author of TopoLT is 3D Space, a company with rich experience in geodetic projects and software design. TopoLT is an indispensable tool for topography and cadaster, meeting all the requirements of the field and office work. The program is available in multiple languages and can be translated in any language by the user, and the functions can be configured for a wide range of situations. TopoLT is running on AutoCAD or other CAD platforms (IntelliCAD), using the drawing functions of AutoCAD and adding specific functions necessary to create topographical and cadastral plans in digital format.