GRASS GIS: Open-source GIS for advanced raster, vector and terrain analysis. Turf.js: Geospatial analysis in JavaScript, in the browser or Node.
| GRASS GIS | Turf.js | |
|---|---|---|
| Category | Desktop GIS | Map Libraries & SDKs |
| Pricing model | Open source | Open source |
| Starts at | Free | Free |
| Free tier | — | — |
| Open source | Yes | Yes |
| Software licence | GPL-2.0+ | MIT |
| API | — | — |
| Platforms | Windows, macOS, Linux, Python | JavaScript |
| Made by | — | — |
| Commercial use | Allowed | Allowed |
| Export / print images | Allowed | Allowed |
| Offline / caching | Allowed | Allowed |
| Visits from MapTools | 8 | 3 |
| Visit | Visit |
GRASS GIS features
- Raster and terrain analysis
- Hydrological modelling
- Image processing
- Python and command-line scripting
Turf.js features
- Buffers, unions and intersections
- Distance, area and bearing
- Point-in-polygon and clustering
- Works in browser and Node.js
Summary based on public information. Check each provider's current pricing and terms.