Open-source satellite tracker and pass predictor for Android
Open source system for GPS tracking devices
Read, write and edit metadata
GPS track editor for editing tracks and planning (multiple) day tours
Minimalistic wide-open GPS-locator/tracker
Create, edit view GPX tracks (in the background - online maps)
Simple GPS tracking server
3D map viewer for your hiking trips.
Show your position live on the web using your phone as a tracker
Mad Vandal's FortressCraft Mod Source Code
eGPXviewer is a 3D GPX track viewer
High-precision indoor positioning framework, version 3
Tracks IOS, Android, Windows, and Java Me/J2ME cell phones
High-precision indoor positioning framework for most wifi devices
Airborne avionics platform for drone system identification and control
Mark GPX files as found based on My Finds Pocket Query
Map application using OpenStreetMap data
Application to browse and visualize your GPS files
Reverse gpx route or track exported from Strava*
A small portable php/MySQL backend server to track an iPhone