Organic Maps is a free Android & iOS offline maps app for travelers
GPS log file viewer and analyzer
Viking is a free/open source program to manage GPS data
GPS navigation software for Windows Mobile & WinCE devices.
Minimalistic wide-open GPS-locator/tracker
A C library for parsing/normalizing street addresses around the world
Plugins for OpenCPN
Simple GPS tracking server
Build your own GPS unit
A reference implementation of the Polish geobotanical grid
GPS mapping and management software
#5A - STM32L496 based module for free development
GPS tracker for BlackBerry 10
Open Source Marine Chart Plotting Program
#3A - GPS assisted tracking device with GSM connectivity and a lot of
This is a port of LibRTK on C#, and into a small c/c++ library.
Satellite Emulator
A tile-based map viewer with support for GPX files.
Toolbox for geoscientists and geo enthusiasts
Whitestone Interactive GPS Software for .Net
Shortest Path Navigator with Directions and Distance
A software to manipulate RINEX 3 files
A gui for linux users of miniHomer, a GPS tracker