Cross platform (lin/win/mac) geographical information system (GIS)
Traccar GPS Tracking System
GPS log file viewer and analyzer
Showing The Amateur radio Repeaters Tool
Viking is a free/open source program to manage GPS data
Bootable linux distro for Geospatial Applications
An information system for cyclists in Berlin and Brandenburg
GPS track editor for editing tracks and planning (multiple) day tours
... the open-source glide computer
Open Source Desktop GIS with Surveying and Cartography Functionality
A Guide of the Trees of Barcelona City
A software package for quantitative analysis in Panbiogeography
Catalog of applications for OpenStreetMap
Tool for assessment of environmental services on farm scale.
Open-source JavaScript library for mobile-friendly interactive maps