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GRASS (Geographic Resources Analysis Support System)
Commonly referred to as GRASS, this is free Geographic Information System (GIS) software used for geospatial data management and analysis, image processing, graphics/maps production, spatial modeling, and visualization. GRASS is currently used in academic and commercial settings around the world, as well as by many governmental agencies and environmental consulting companies. GRASS is an official project of the Open Source Geospatial Foundation. GRASS contains modules for raster data manipulation (2D and 3D voxels), vector data manipulation, rendering images on the monitor or paper, multispectral image processing, point data management and general data management, as well as tools for interfacing with digitizers, scanners, and SQL databases as PostgreSQL, and other through an ODBC interface.


Online User Manual -

"IRC irc:// " IRC Help channel
"IRC irc:// " IRC general channel
"IRC irc:// " IRC development channel

Related Projects


LicenseVerified byVerified onNotes
GPLv2orlaterJanet Casey12 June 2001

Leaders and contributors

GRASS Development Team Maintainer
Markus Neteler Maintainer

Resources and communication

Audience Resource type URI
Development Mailing List Info/Archive
Developer, User Download
Developer Homepage
Bug Tracking Bug Tracking
Developer Mailing List Info/Archive
Help Mailing List Info/Archive

Software prerequisites

Kind Description
Required to use See for a list of required and recommended packages
Weak prerequisite Mesa 3D
Weak prerequisite libpng

This entry (in part or in whole) was last reviewed on 14 September 2015.


Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.

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