QGIS (Quantum GIS) is a cross-platform free and open-source desktop geographic information system (GIS) application that supports viewing, editing, and analysis of geospatial data.
Developed by OSGeo, Open Source Geospatial Foundation
GRASS GIS (Geographic Resources Analysis Support System) is a geographic information system (GIS) software suite used for geospatial data management and analy…
Maptitude is a mapping software that allows users to view, edit and integrate maps. The software and technology are designed to facilitate the geographical vi…