Traccar GPS Tracking System
Accurately Locate Smartphones using Social Engineering
Geocode addresses to coordinates
Open Source Routing Machine - C++ backend
Build your own GPS unit
GPS log file viewer and analyzer
GPS track editor for editing tracks and planning (multiple) day tours
A Guide of the Trees of Barcelona City
... the open-source glide computer
A Matlab software to estimate Euler pole parameters
Open source system for GPS tracking devices
An interactive tool for GNSS position time series analysis
Minimalistic wide-open GPS-locator/tracker
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
Java Library for working with gpx files