QGIS, formerly Quantum GIS, is a user friendly open source Geographic Information System (GIS) licensed under the GNU General Public License that runs on Linux, Unix, Mac OSX, and Windows and supports numerous vector, raster, and database formats and functionalities.
QGIS lets you browse, edit and create a variety of vector and raster formats, including ESRI shapefiles, spatial data in PostgreSQL/PostGIS, GRASS vectors and rasters, or GeoTiff. You can create customised plugins and GIS enabled applications using Python or C++. Maps can be compiled for printing using the print composer.
QGIS supports plugins to do things like import of delimited text data, download tracks, routes, and waypoints from your GPS or visualize OGC WMS and WFS layers.
Looking for other QGIS-like programs? We've rounded up our favorites QGIS alternatives. Try any one of these fan favorites to see if they'll support your system and meet your specific needs.
GRASS GIS (Geographic Resources Analysis Support System) is an open source, free software (FOSS) Geographical Information System (GIS) with raster, topological, vector...
OpenGeo provides support and services around GeoServer, OpenLayers, PostGIS, GeoWebCache, and GeoExt. The OpenGeo Suite brings together the OpenGeo Architecture into a...
gvSIG is a Geographic Information System (GIS), that is, a desktop application designed for capturing, storing, handling, analyzing and deploying any kind of referenced...
MapServer is an Open Source platform for publishing spatial data and interactive mapping applications to the web. Originally developed in the mid-1990’s at the...
SAGA - System for Automated Geoscientific Analyses - is a Geographic Information System (GIS) software with immense capabilities for geodata processing and analysis....
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