Quantum GIS

Quantum GIS (QGIS) is a Geographic Information System (GIS) that runs on Linux, Unix, Mac OSX, and Windows. QGIS supports vector, raster, and database formats. QGIS is licensed under the GNU Public License.

Some of the major features include:

  1. Support for spatially enabled PostGIS tables
  2. Support for shapefiles, ArcInfo coverages, Mapinfo, and other formats supported by OGR
  3. Raster support for a large number of formats
  4. Identify features
  5. Display attribute tables
  6. Select features
  7. GRASS Digitizing
  8. Feature labeling