The Bioperl Project is an international association of developers of open source Perl tools for bioinformatics, genomics and life science research. The Bioperl server provides an online resource for modules, scripts, and web links.

The BioJava Project is an open-source project dedicated to providing Java tools for processing biological data.

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

A hierarchical database system for displaying genomic data (originally C. elegans), suitable also for displaying other scientific data.

BiBiServ supports Internet-based collaborative research, software development and distance education in bioinformatics.

OO Interface to AceDB

The Bioconductor project produces an open source software framework that will assist biologists and statisticians working in bioinformatics, with primary emphasis on inference using DNA microarrays, built mostly using R.

Tools that searches multiple biomedical databases from your desktop.

C++ framework for rapid software prototyping in molecular modeling.

Analytical tools and SQL scripts that solve common problems in drug discovery.