Viking is a free/open source program to manage GPS data
An intuitive molecular editor and visualization tool
A powerful arbitrary-precision calculator.
A planetarium software that shows a 3D simulation of the night sky
Model Railway CAD program
Arbitrary-precision CRC calculator and algorithm finder
GPS track editor for editing tracks and planning (multiple) day tours
Open Source Solid Modeling CAD
Schematic circuit editor for VLSI and Mixed mode circuit simulation.
A GUI library for designing gauges, meters, oscilloscopes, plotters
Command-line calculator and libray.
headsort: streaming sort + 2x faster than gnu sort
Pequeño IDE para el lenguaje JMEScript.
An open process control and laser engraving software solution
Convert any image to gerber and drill files
turn-based wargame/simulator
A hex editor Eclipse plugin and multi-platform desktop application