GNU Health - The Free/Libre Hospital and Health Information System
CADAM is the open source text-to-CAD web application
An object relational-mapping (ORM) library for Java
The Open Source CFD Toolbox
An advanced network simulator to design and configure virtual networks
A circuit simulator with graphical user interface (GUI)
An intuitive molecular editor and visualization tool
A library for polyhedral mesh generation
Model Railway CAD program
Open source finite element software for multiphysical problems
Software tools for processing taxonomic descriptions in DELTA format
Toolkit for working with and mapping geospatial data
An interactive viewer for three-dimensional chemical structures.
Just a few scripts for pocket calculators.
SUMO is a microscopic, multi-modal traffic simulation.