Invenio is described as 'free, open-source software to run a digital library or document repository on the web' and is an app in the Education & Reference category. There are more than 10 alternatives to Invenio for a variety of platforms, including Linux, Windows, Mac, Self-Hosted solutions and Online / Web-based. The best alternative is Koha, which is both free and Open Source. Other great apps like Invenio are VuFind (Free, Open Source), Evergreen ILS (Free, Open Source), DSpace (Free, Open Source) and FedoraCommons (Free).
Evergreen is a highly-scalable software for libraries that helps library patrons find library materials, and helps libraries manage, catalog, and circulate those materials, no matter how large or complex the libraries.
Fedora (Flexible Extensible Digital Object Repository Architecture) was originally developed by researchers at Cornell University as an architecture for storing, managing, and accessing digital content in the form of digital objects inspired by the Kahn and Wilensky Framework.
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.
RODA is a complete digital repository that delivers functionality for all the main units of the OAIS reference model. RODA is based on open-source technologies and is supported by existing standards such as the OAIS, METS, EAD and PREMIS.
Ambra is an innovative Open Source platform for publishing Open Access research articles. Ambra is a high-volume, efficient and economical system for the publication of research articles in all areas of science.