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Evergreen is an open-source and free integrated library system which is used worldwide by over 2,000 libraries.
BiblioteQ is an open-source library management software that has a comprehensive range of features.
Invenio’s ILS employs the Invenio framework, which includes popular open-source technologies such as the Python and React frameworks
Koha is world’s first open source library system. It is used by public, school, and special libraries globally.
OPALS is used in over 2000 libraries on a regular basis because it delivers a fully automated library management solution.