Geographic library
Viking is a free/open source program to manage GPS data
Toolkit for working with and mapping geospatial data
GPS track editor for editing tracks and planning (multiple) day tours
An information system for cyclists in Berlin and Brandenburg
Open source system for GPS tracking devices
Set of Java interfaces for geospatial applications
Tool to work on map data, to check the data and generate your own maps
Offline vector map display ported from OsmAnd
Plugins for OpenCPN
Geodesy based library (geodetic and geocentric functions)
A software gps simulator
Korean Spatial DBMS Driver