Invenio is an open-source framework (MIT licence) for building digital libraries and institutional repositories. Its main applications are InvenioRDM, a repository for research data and digital assets, and InvenioILS, an integrated library system covering cataloguing, circulation and acquisitions. Libraries and research institutions use it as a self-hosted alternative to proprietary repository and library platforms, and the software is installed on the organisation's own infrastructure.
Invenio was born at CERN, whose seat is in Geneva, Switzerland, and its copyright is held by CERN and contributors. CERN itself runs services such as Zenodo and CERN Open Data on Invenio. The project website describes no vendor-hosted service, so data stays wherever the organisation installs the software. The MIT licence lets a European organisation run, audit and modify the code without dependence on a foreign vendor.