Cross platform (lin/win/mac) geographical information system (GIS)
Python data, Leaflet.js maps
Accurately Locate Smartphones using Social Engineering
Large-scale WebGL-powered geospatial data visualization analysis
GeoServer repository
Traccar GPS Tracking System
An open source geocoder for openstreetmap data
Self-hostable alternative to Google Timeline
Open Source Routing Machine - C++ backend
Mybatis common mapper, easy to use
Viking is a free/open source program to manage GPS data
Handling and basic analysis of hyperspectral data in R
Toolkit for working with and mapping geospatial data
Bootable linux distro for Geospatial Applications
GWC is a tile server and caching proxy written in Java
Open Source Desktop GIS with Surveying and Cartography Functionality
Geographic feature extraction and data mining
A software package for quantitative analysis in Panbiogeography
Build your own GPS unit