GPS log file viewer and analyzer
Viking is a free/open source program to manage GPS data
GPS track editor for editing tracks and planning (multiple) day tours
Open source system for GPS tracking devices
A Matlab software to estimate Euler pole parameters
Tool to work on map data, to check the data and generate your own maps
Plugins for OpenCPN
Simple GPS tracking server
eGPXviewer is a 3D GPX track viewer
Build your own GPS unit
A reference implementation of the Polish geobotanical grid
Android Phone app that sends your GPS location in a SMS to a recipient
GPS mapping and management software
Open Source Marine Chart Plotting Program
Navigation and transit.
Analyze and change GPS coordinates and time in digital pictures
Satellite Emulator
Land survey field crew data management for .RAW and .JOB file types.
Track your mobile device or cellphone via internet using OpenGTS/GPRMC
A software for processing and analyzing time series in Earth Science
A software to manipulate RINEX 3 files