Interactive visualization of plate tectonics.
GPX viewer, analyser and editor with official maps, terrain and graphs
GPSBabel converts and transfers data like waypoints, tracks & routes.
NMEA 0183 library for Java
Advanced mission simulation and analysis tool
Former project page
Navigation and transit.
GWC is a tile server and caching proxy written in Java
An application for using an external bluetooth GPS on Android devices
Google Earth Enterprise - Open Source
Lightweight GPS Logging Application For Android
Offline OpenStreetMap maps for iOS and Android
Free and open-source map hosting solution with custom styles
A high-performance, feature-packed library for all your mapping needs
A C library for parsing/normalizing street addresses around the world
An open source geocoder for openstreetmap data