# GRASS Repository

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## Description

[GRASS](https://grass.osgeo.org/), Geographic Resources Analysis Support System,
is a powerful computational engine for raster, vector, and geospatial processing.
It supports terrain and ecosystem modeling, hydrology, data management,
and imagery processing. With a built-in temporal framework and Python API,
it enables advanced time series analysis and rapid geospatial programming,
optimized for large-scale analysis on various hardware configurations.

You can use GRASS as your desktop Geographic Information System (GIS)
or as a geoprocessing engine through command-line, Python or R interface.

GRASS is open-source and free software,
available under the [GNU General Public License](https://www.gnu.org/licenses/#GPL),
and hosted by the Open Source Geospatial Foundation ([OSGeo](https://www.osgeo.org/)).

[//]: # (numfocus-fiscal-sponsor-attribution)

GRASS uses a [custom governance model](./GOVERNANCE.md)
and is fiscally sponsored by [NumFOCUS](https://numfocus.org/). Consider making
a [tax-deductible donation](https://numfocus.org/donate-to-grass) to help the project
pay for developer time, professional services, travel, workshops,
and a variety of other needs.

NumFOCUS is a 501(c)(3) non-profit charity in the United States;
as such, donations to NumFOCUS are tax-deductible as allowed by law.
As with any donation, you should consult with your personal tax adviser or
the IRS about your particular tax situation.

## Downloads

See [download instructions](https://grass.osgeo.org/download/)
to get GRASS for your platform.

## Documentation

See [documentation](https://grass.osgeo.org/grass-devel/manuals/index.html)
and [tutorials](https://grass-tutorials.osgeo.org/) to start learning GRASS.

## Getting help

Join the GRASS community on [Discourse](https://discourse.osgeo.org/c/grass/grass-user/70)
or explore [GRASS commercial support](https://grass.osgeo.org/support/commercial/).

## Contributing

All contributions are welcome! Join GRASS developer community on [Discourse](https://discourse.osgeo.org/c/grass/developer/61)
to discuss your plans or simply open
a [pull request](https://github.com/OSGeo/grass/pulls).
See [CONTRIBUTING file](CONTRIBUTING.md) for more details.

## Compiling GRASS

See the [INSTALL.md file](INSTALL.md). In addition, there are
detailed [compile instructions](https://grasswiki.osgeo.org/wiki/Compile_and_Install)
in the Wiki.

## Docker

For using and building a GRASS docker image, see [docker/README.md](docker/README.md).

## Further documents

- [NumFOCUS Code of Conduct](CODE_OF_CONDUCT.md)
- [Roadmap](https://grass.osgeo.org/about/roadmap/)
- [Governance](https://grass.osgeo.org/about/governance/)

## Thanks to all contributors ❤

[![GRASS contributors](https://contrib.rocks/image?repo=OSGeo/grass "GRASS contributors")](https://github.com/OSGeo/grass/graphs/contributors)
