Traccar GPS Tracking System
Viking is a free/open source program to manage GPS data
Build your own GPS unit
An interactive tool for GNSS position time series analysis
Minimalistic wide-open GPS-locator/tracker
Tool to work on map data, to check the data and generate your own maps
A C library for parsing/normalizing street addresses around the world
A library to generate short codes
Satellite Emulator
Application to browse and visualize your GPS files
Track your mobile device or cellphone via internet using OpenGTS/GPRMC
Whitestone Interactive GPS Software for .Net
See you and your friends on a map
Customization of OpenGTS look and feel
GT2 combines online and offline navigation for hikers and cyclists
Plugin for OpenCPN
A program to convert different GPS date formats.
Analyze gpx files and store summary in Sqlite database
Convert GPS-Tracks user-saved tracks to KML files for Google Earth.
GPS data in a file for development testing
PC/PocketPC tool to get tracklogs from the WBT-201 GPS logger