GRASS GIS Info Sheet

GRASS GIS Info Sheet

GRASS (Geographic Resources Analysis Support System)

Info Sheet


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GRASS (Geographic Resources Analysis Support System) is a Software for performing spatial analysis. It consists of more than 350 modules for processing vector (2D/3D), raster and voxel data. Many interfaces to other programs in related domains like geostatistics, databases, mapserver and even other GIS software exist. It can serve as a Desktop GIS and as the backbone of a complete GIS infrastructure.

GRASS was originally developed in the beginning of the 1980s by the US Army Construction Engineering Research Laboratories (USA-CERL) and was published as a public domain software. When the USA-CERL withdrew from the GRASS development, an international developer team took over this work. Since 1999 GRASS has been published as a free software under the terms of the GNU General Public Licence.

GRASS GIS is successfully used in scientific applications, commercial settings and by public officials all over the world.


  • 2D raster analysis and 3D voxel management (volumes)
  • 2D/3D Vector engine with SQL based DBMS support
  • Time series management
  • Image processing modules
  • Vector network analysis, Linear Referencing System
  • Visualization of 2D, 3D maps and volumes
  • Python and Shell script interfaces
  • Interoperable with standard raster and vector formats
  • Works on GNU/Linux, Mac OS X, MS-Windows and other POSIX compliant platforms
  • Modular architecture and batch processing capabilities

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