The Biopython Project is an international association of developers of freely available Python tools for computational molecular biology.

The proBiosys suite of programs compares phenetic, chemotaxonomic and nucleic acid sequence data. Algorithms for polyphasic taxonomy are available to construct Dendrograms, the suite is simple to use.

The European Molecular Biology Open Software Suite. An open source project started by the EMBnet community in order to replace proprieatry systems like GCG.