GRASS GIS (Geographic Resources Analysis Support System), version 7 is the response to the rapidly increasing demand for robust and modern free analysis tools.

Started in 2008, the development team implemented more than 10,500 improvements in GRASS GIS 7.0 with respect to the GRASS GIS 6.4 version, followed by further 7.x releases.

GRASS GIS 7 offers a number of new modules for vector network analysis, image processing, voxel analyse, time series processing (raster, vector, voxel) and an improved graphical user interface. GRASS GIS 7 provides a new Python interface that enables users in a simple way to create new powerful and efficient applications. The graphical user interface has been enriched with new tools for the animation of raster and vector maps time series, an improved georectifier, a new tool for supervised image classification, a "map swiper " for interactive comparison of two maps (eg for disaster management), and a tool for visual time series management

Moreover, the topological vector library has been improved with respect to the support of large files. SQLite is now default database driver. Furthermore, there are a number of new analysis capabilities and also support for massive data analysis. Additionally, projections other planets than for Earth are now supported. Many modules have been significantly optimized in terms of speed.


GRASS GIS 7 is available for all common operating systems and can be freely downloaded here:


Migration hints from GRASS GIS 6 to 7


GRASS (Geographic Resources Analysis Support System) is a free and open source Geographic Information System (GIS) software suite used for geospatial data management and analysis, image processing, graphics and map production, spatial modeling, and 3D visualization. GRASS GIS is currently used in academic and commercial settings around the world, as well as by many governmental agencies and environmental consulting companies. GRASS GIS can be used either as a stand-alone application or as backend for other software packages such as QGIS and R geostatistics. It is a founding member of the Open Source Geospatial Foundation (OSGeo).

Documentation >> GRASS 7 at a glance | Last change: 12-Nov-2019