OpenNum lets you distribute solvers with a nice graphical interface
PySCeS Constraint Based Modelling
GUI for managing and working with one or more HTCondor pools.
YASimCommander is a platform-independent editor for YASIM files.
utility to split mp3, ogg vorbis and FLAC files without decoding
A Library for Interactive Modelling and Visualisation
PetriNetExec a library for embedding Petri Nets into Java applications
An easy-to-use Simulation of Hardware-Gates