Cross platform (lin/win/mac) geographical information system (GIS)
Open-source JavaScript library for mobile-friendly interactive maps
Interactive, thoroughly customizable maps in the browser
Traccar GPS Tracking System
LaMa - A Localization and Mapping library
Navigational Algorithms - Marine navigation
Minimalistic wide-open GPS-locator/tracker
Robotics Toolbox for MATLAB
Interactive, thoroughly customizable maps
Multiplatform Ham Radio APRS and Mapping Program
Former project page
Track your mobile device or cellphone via internet using OpenGTS/GPRMC
Apl. móvil de Información georeferenciada + visor 3D escritorio
See you and your friends on a map
GT2 combines online and offline navigation for hikers and cyclists
Interactive geospatial directory
a free and open map of wireless communicating objects