Viking is a free/open source program to manage GPS data
Numerical Bifurcation Analysis Toolbox in Matlab
Model Railway CAD program
Your Private Offline Translator
Open source finite element software for multiphysical problems
Structure-from-Motion and Multi-View Stereo
For exploring cellular automata like Conway's Game of Life.
Open source Health IT for the planet
Real time satellite tracking and orbit prediction
CloudCompare main repository
Orange: Interactive data analysis
VHDL 2008/93/87 simulator
SUMO is a microscopic, multi-modal traffic simulation.
Open source cross-platform Java Visual Traceroute
TI graphing calculators <-> computer communication software
2D & 3D TeX-Aware Vector Graphics Language
OctoPrint is the snappy web interface for your 3D printer