TinyCat - The online catalog and integrated library system for tiny libraries, powered by LibraryThing.

Mandarin Library Automation - Mandarin Library Automation helps librarians and teachers to bring relevant, current information to libraries and classrooms.

Atoll Digital Library - Atoll Digital Library is an open source platform for building digital library collections.

Heritage Cirqa - Heritage Cirqa is the library management software system for special, legal, college, school and other academic libraries.

DSpace - DSpace open source software enables open sharing of content that spans organizations, continents...

Eloquent Library - Eloquent Library contains all the functions available in traditional Integrated Library Systems, plus everything required to build and maintain a virtual library.