Python data, Leaflet.js maps
Open Source Routing Machine - C++ backend
Interactive, thoroughly customizable maps in the browser
GWC is a tile server and caching proxy written in Java
Toolkit for working with and mapping geospatial data
Open source system for GPS tracking devices
Minimalistic wide-open GPS-locator/tracker
A view abstraction to provide a map user interface
Multiagent simulator of road traffic in Qt/C++ and OpenStreetMap.
GPS mapping and management software
Customization of OpenGTS look and feel
GT2 combines online and offline navigation for hikers and cyclists
Tile Cache Server
Analyze gpx files and store summary in Sqlite database
a free and open map of wireless communicating objects
Python wrapper for Google Maps V2 API