Quantum GIS

Quantum GIS (QGIS) is a user friendly Open Source Geographic Information System (GIS). QGIS is licensed under the GPL.

QGIS User Map

Quantum GIS (QGIS) is a user friendly Open Source 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:

Support for spatially enabled PostGIS tables
Support for shapefiles, ArcInfo coverages, Mapinfo, and other formats supported by OGR
Raster support for a large number of formats
Identify features
Display attribute tables
Select features
GRASS Digitizing
Feature labeling

See the User Guide for more information, or take a look at this short flash demo (opens in a new window). You can also get a nice printable overview of QGIS by downloading our brochure.

Supported Platforms

Make sure to read the Release Notes before downloading.