GRASS GIS: Open-source GIS for advanced raster, vector and terrain analysis. SAGA GIS: Free GIS with a large library of terrain and raster analysis tools.
| GRASS GIS | SAGA GIS | |
|---|---|---|
| Category | Desktop GIS | Desktop GIS |
| Pricing model | Open source | Open source |
| Starts at | Free | Free |
| Free tier | — | — |
| Open source | Yes | Yes |
| Software licence | GPL-2.0+ | GPL |
| API | — | — |
| Platforms | Windows, macOS, Linux, Python | Windows, Linux |
| Made by | — | — |
| Commercial use | Allowed | Check terms |
| Export / print images | Allowed | Check terms |
| Offline / caching | Allowed | Check terms |
| Visits from MapTools | 8 | 10 |
| Visit | Visit |
GRASS GIS features
- Raster and terrain analysis
- Hydrological modelling
- Image processing
- Python and command-line scripting
SAGA GIS features
- Terrain analysis
- Raster processing
- Large tool library
- Scripting
Summary based on public information. Check each provider's current pricing and terms.