Traccar GPS Tracking System
Viking is a free/open source program to manage GPS data
... the open-source glide computer
GPS log file viewer and analyzer
Build your own GPS unit
GPS track editor for editing tracks and planning (multiple) day tours
A Matlab software to estimate Euler pole parameters
An interactive tool for GNSS position time series analysis
Create, edit view GPX tracks (in the background - online maps)
Minimalistic wide-open GPS-locator/tracker
NMEA 0183 library for Java
Tool to work on map data, to check the data and generate your own maps
Advanced mission simulation and analysis tool
A C library for parsing/normalizing street addresses around the world
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
GPS mapping and management software
Analyze and change GPS coordinates and time in digital pictures
Application to browse and visualize your GPS files
Land survey field crew data management for .RAW and .JOB file types.
A tile-based map viewer with support for GPX files.