GPS log file viewer and analyzer
GPS track editor for editing tracks and planning (multiple) day tours
GPS mapping and management software
Open Source Marine Chart Plotting Program
Satellite Emulator
Land survey field crew data management for .RAW and .JOB file types.
Using PHP-CLI to parse NMEA data to generate depth maps with GD
Convert a Garmin ADM database file to a GPX file
Analyze gpx files and store summary in Sqlite database
a free and open map of wireless communicating objects