Cross platform (lin/win/mac) geographical information system (GIS)
Accurately Locate Smartphones using Social Engineering
Free and open-source map hosting solution with custom styles
Open Source Routing Machine - C++ backend
Geographic library
GPS log file viewer and analyzer
Open source cross-platform Java Visual Traceroute
Viking is a free/open source program to manage GPS data
Toolkit for working with and mapping geospatial data
Bootable linux distro for Geospatial Applications
Showing The Amateur radio Repeaters Tool
GWC is a tile server and caching proxy written in Java
GPS navigation software for Windows Mobile & WinCE devices.
GPS track editor for editing tracks and planning (multiple) day tours
A cartography program with parameter adjustments and gravity fonctions
Free software for maps
An information system for cyclists in Berlin and Brandenburg
... the open-source glide computer
Open OSINT stack for monitoring, analysis, and risk detection