Viking is a free/open source program to manage GPS data
GPS log file viewer and analyzer
GPS track editor for editing tracks and planning (multiple) day tours
A Matlab software to estimate Euler pole parameters
NMEA 0183 library for Java
Tool to work on map data, to check the data and generate your own maps
GPS mapping and management software
Land survey field crew data management for .RAW and .JOB file types.
A tile-based map viewer with support for GPX files.
NMEA libary for java (protocol of GPS devices)
Apl. móvil de Información georeferenciada + visor 3D escritorio
Using PHP-CLI to parse NMEA data to generate depth maps with GD
CAD 2D for Land Surveying,Civil and more
A gui for linux users of miniHomer, a GPS tracker
Convert a Garmin ADM database file to a GPX file
Visualize data from the opencellid.org project
Analyze gpx files and store summary in Sqlite database
a free and open map of wireless communicating objects