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GRASS, 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 theGNU General Public License,and hosted by the Open Source Geospatial Foundation (OSGeo).

GRASS uses acustom governance modeland is fiscally sponsored byNumFOCUS. Consider makingatax-deductible donation to help the projectpay 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 orthe IRS about your particular tax situation.

Seedownload instructionsto get GRASS for your platform.

Seedocumentation andtutorialsto start learning GRASS.

Join the GRASS community onDiscourseor exploreGRASS commercial support.

All contributions are welcome! Join GRASS developer community onDiscourseto discuss your plans or simply openapull request.SeeCONTRIBUTING file for more details.

See theINSTALL.md file. In addition, there aredetailedcompile instructionsin the Wiki.

For using and building a GRASS docker image, seedocker/README.md.

• NumFOCUS Code of Conduct
• Roadmap
• Governance