Collection of useful freeware I often used for my scientific work
Data analysis & simulation
ApE GelAnalyzer OPENChrom PeakFIT (only old versions) Glotaran COOT PyMOL KSimus COPASI HMMER Massenspektrograph
Programming
The R Project python Perl Go Programming Language
Graphics & visualisation
Gnuplot QtiPlot (just source code) Inkscape GIMP ePTE ChemSketch
Miscellaneous