QGIS
Open source
Free / DonateSupport optional
Overview
QGIS is a powerful cross-platform open-source GIS application that allows users to create, edit, visualize, analyze, and publish geospatial information. It supports raster and vector data, advanced geoprocessing tools, plugins, database connections, and professional cartography workflows for desktop, server, and mobile environments.
Key features
- Vector & raster support
- Spatial analysis
- Geoprocessing tools
- Cartography & map design
- Plugin ecosystem
- Database integration
- 3D visualization
- Python API
- Cross-platform
- Open-source
