Traccar GPS Tracking System
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
Minimalistic wide-open GPS-locator/tracker
Create, edit view GPX tracks (in the background - online maps)
A Matlab software to estimate Euler pole parameters
An interactive tool for GNSS position time series analysis
NMEA 0183 library for Java
Advanced mission simulation and analysis tool
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
Plugins for OpenCPN
Simple GPS tracking server
Build your own GPS unit
eGPXviewer is a 3D GPX track viewer
Java Library for working with gpx files
Combines the high accuracy of AR with the scale of GPS data
A library to generate short codes
A reference implementation of the Polish geobotanical grid
GPS mapping and management software
CAD 2D for Land Surveying and Civil