Viking is a free/open source program to manage GPS data
Java Library for working with gpx files
CAD 2D for Land Surveying and Civil
Analyze and change GPS coordinates and time in digital pictures
A software to manipulate RINEX 3 files
Apl. móvil de Información georeferenciada + visor 3D escritorio
Using PHP-CLI to parse NMEA data to generate depth maps with GD
Customization of OpenGTS look and feel
A gui for linux users of miniHomer, a GPS tracker
Android Mobile Tracking Platform
An Android App Dealing with Smartphone Sensors
A program to convert different GPS date formats.
Analyze gpx files and store summary in Sqlite database