Organic Maps is a free Android & iOS offline maps app for travelers
Conversor GPX -> KML by php
Lightweight GPS Logging Application For Android
GPS log file viewer and analyzer
GPS track editor for editing tracks and planning (multiple) day tours
Viking is a free/open source program to manage GPS data
Photo geotagging and culling software
Altimetry profile visualizer
Open Source Desktop GIS with Surveying and Cartography Functionality
3D map viewer for your hiking trips.
Managing daemon for GM7 Xtreme GPS Tracker
Take a Google My Map KML file and convert it to a gpx for your GPS
GoogleEarth Organiser, Editor & Toolkit
An Android app. to make your physical activity much more fun!
Web Mapping Platform
Application to browse and visualize your GPS files
Obtain your cycling power
Open Street Map (OSM) tools, OSM/XML parser, tag extractor
MassGeotagger lets you to geotag sets of JPG Photos with GPX logs
GT2 combines online and offline navigation for hikers and cyclists
GPS data visualisation and exploration