Mapnik
Mapnik is a Free Toolkit for developing mapping applications. Above all Mapnik is about making beautiful maps. It is easily extensible and suitable for both desktop and web development. - C++/Python GIS toolkit
QGIS
QGIS, formerly Quantum GIS, is a user friendly open source Geographic Information System (GIS) licensed under the GNU General ...
SuperGIS
Supergeo Technologies Inc. is global leading GIS software & total solution provider. With series GIS products covering fro ...
GeoNode
GeoNode is a web-based application and platform for developing geospatial information systems (GIS) and for deploying spatial ...
GRASS GIS
GRASS GIS (Geographic Resources Analysis Support System) is an open source, free software (FOSS) Geographical Information Syst ...
Mapserver
MapServer is an Open Source platform for publishing spatial data and interactive mapping applications to the web. Originally d ...
SAGA GIS
SAGA - System for Automated Geoscientific Analyses - is a Geographic Information System (GIS) software with immense capabiliti ...
GeoServer
The reference implementation of the Open Geospatial Consortiums WFS and WMS services, GeoServer is a full featured open source ...
Mapline
Mapline is the simplest mapping software on the planet! Be empowered with map visualizations from Excel spreadsheet data to op ...
uDig
uDig is a GIS software program produced by a community led by Canadian-based consulting company Refractions Research. It is ba ...
MapLarge
Beautiful, User Friendly online mapping software that scales to big data. The MapLarge API enables user-driven, low latency, i ...
OpenGeo Suite
OpenGeo provides support and services around GeoServer, OpenLayers, PostGIS, GeoWebCache, and GeoExt. The OpenGeo Suite brings ...
what3words
What3words encodes geographic coordinates into 3 dictionary words (for example, the Statue of Liberty is located at planet.inc ...
Spatial Feature Server
MapET Spatial Feature Server is software that makes your geographic information (vector data) available to others in your orga ...