RODA!

DSpace open source software enables open sharing of content that spans organizations, continents and time.Open source Institutional Repository software.

Greenstone is a suite of software tools for building and distributing digital library collections on the Internet or CD-ROM. It is open-source, multilingual software, issued under the terms of the GNU General Public License. Greenstone is produced by the New Zealand Digital Library Project at the University of Waikato, and has been developed and distributed in cooperation with UNESCO and the Human Info NGO in Belgium.

EPrints supports research papers, theses, teaching materials, arts and more.

Invenio is a free, open-source software to run a digital library or document repository on the web.