Compare software

Global Mapper vs GRASS: catalog facts
Global Mapper	GRASS
Paid Paid software with a free trial.	Free Free and open source, with community and commercial support available.
Windows	Windows, macOS, Linux
Lidar and point cloud processing built in Coordinate system validation	Broad raster, vector and imagery processing Temporal framework for time series analysis
Paid licence Aimed at professionals rather than casual map users	Steep learning curve for newcomers Geared to analysis rather than simple map viewing
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License not stated
Not stated if an account is needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.