GPS log file viewer and analyzer
Viking is a free/open source program to manage GPS data
GPS track editor for editing tracks and planning (multiple) day tours
... the open-source glide computer
Create, edit view GPX tracks (in the background - online maps)
Tool to work on map data, to check the data and generate your own maps
Plugins for OpenCPN
A C library for parsing/normalizing street addresses around the world
GPS mapping and management software
Trasforma coordinate da epsg per google maps
Navigation and transit.
Analyze and change GPS coordinates and time in digital pictures
A tile-based map viewer with support for GPX files.
Toolbox for geoscientists and geo enthusiasts
Track your mobile device or cellphone via internet using OpenGTS/GPRMC
Using PHP-CLI to parse NMEA data to generate depth maps with GD
Customization of OpenGTS look and feel
GT2 combines online and offline navigation for hikers and cyclists
a free and open map of wireless communicating objects