GIS Standalone Software
The Geographic Resources Analysis Support System, commonly referred to as GRASS, is a Geographic Information System (GIS) providing powerful raster, v
gvSIG has established itself as one of the most comprehensive Open Source GIS packages. gvSIG is a fully fledged desktop application designed for cap
QGIS is a full functioning GIS that is easy and intuitive to use. It is quickly becoming the leading open source standalone GIS. QGIS is a user fr
Whitebox Geospatial Analysis Tools
Whitebox Geospatial Analysis Tools is a comprehensive open source tool kit. It has over 370 geospatial tools that allow users to read, write and manipulate all sorts of spatial data. It covers both vector and raster and even has a Lidar processing module. Pretty much everything you need is in there.
Whitebox is a java based application and will work on most Windows, Macs and Linux machines.