Download source code if you want to develop your own GRASS extensions or run GRASS on a special computer platform. The source code needs around 350MB+ of disk space.

[ GRASS GIS: 7.4 old stable | 7.6 new stable | 7.7 devel ]

GRASS GIS 7.4 (old stable)

Old stable release, see New Features74 and GRASS GIS 7.4.4 announcement. Long term release (LTS).

Source code:


GRASS GIS 7.6 (new stable)

New stable release, see New Features76 and GRASS GIS 7.6.1 announcement

Source code:


GRASS GIS 7.7 (development)

Unstable and experimental, but very promising (see New Features) and mostly works.

Source code:


Download from GRASS GIS SVN repository

The latest GRASS GIS development source code and stable release branch are available from the OSGeo Subversion server, see GRASS GIS trac: Downloading GRASS GIS Source code. See there for the various branches.

Add-ons Source code

The Add-ons source code is available here:

      svn checkout

License of GRASS GIS

GRASS GIS is published under the GNU General Public License (GPL) (see also COPYING statement).

Citing GRASS GIS Software

Please cite GRASS GIS when using the software in your work. See here for some choices depending on the version used.

Old GRASS GIS versions

Detailed GRASS GIS Releases page with links to source code back to the year 1987 etc.

Distribute GRASS GIS!

If you are a software distributor (for example packaging Linux distributions) you are welcome to add GRASS GIS to your software collection under terms of GNU General Public License (GPL). We would be glad to receive a note that you distribute GRASS GIS.

Download >> Software >> Source code | Last change: 19-Mar-2019