GRASS GIS

Geographic Resources Analysis Support System, commonly referred to as GRASS GIS, is a Geographic Information System (GIS) technology built for vector and raster geospatial data management, geoprocessing, spatial modelling and visualization.

GRASS GIS is Free and Open Source Software available for everyone at no cost and released under the terms of the GNU General Public License (GPL >= v2). GRASS GIS is an affiliated project and founding member of the Open Source Geospatial Foundation (OSGeo). 

With our own budget we can produce even better software and documentation for you. And if you don’t have time to contribute or get involved somehow, maybe a donation will make you feel better about using GRASS GIS in your company or research.

Your financial support will also help us to build up the necessary effort and infrastructure to ensure the long-term sustainability of the project and the software.