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Welcome

 

This EUPL collection focuses on open licensing. It includes the European Union Public Licence, a Licensing Assistant, and guidance for IT developers, practitioners, and users to define the conditions for sharing and reusing software.

Discover the European Union Public Licence (EUPL) and its impact on open source licensing. Explore the evolution of free/open source software (F/OSS or FLOSS) legal frameworks—from early drafts to the latest EUPL versions—and how they support public administration and broader software freedom initiatives. 

According to the Interoperable Europe Act (8.4) public sector portals of open source solutions and connected to the Interoperable Europe Portal shall allow for the use of the EUPL.

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Understanding the EUPL and Open Licensing

The European Union Public Licence (EUPL) is the first open-source licence with a working value in all EU official languages. It is reasonably "share-alike/reciprocal," like the LGPL, but also covers remote distribution.

Everyone in the world (and not Europeans only): IT developers, practitioners, and users who need guidance in defining the conditions under which a solution may be freely shared and reused, considering the legal framework.

Clear licensing rules form the regulatory basis for sharing and reusing software solutions while supporting legal interoperability. While the EUPL ensures these principles, other licences may also facilitate compatibility and interoperability.

By Decision C (2021) 8759, the EUPL is provided for European Commission distributed software.
According to the Interoperable Europe Act (8.4) all public sector portals providing open source solutions shall allow for the use of the EUPL.

Got questions about using the EUPL? Visit our FAQ for answers!

Latest updates

Last update: 19/03/2025

Licensing Assistant (Select and compare open licences)

Exclusive Interoperable Europe Portal Tool
Interoperable Europe policyLicensingOpen Source Software
Last update: 15/11/2021

Documentation repository (Guidelines, Documents FAQs)

Table of content below details available documents: guidelines, notes about licence compatibility, a matrix of EUPL compatible licences, EUPL FAQs and a documentation directory
Last update: 20/03/2025

Portal Legal support (questions will be answered)

Summary of the legal support provided by the Interoperable Europe Portal
LicensingOpen Source Software
Last update: 12/06/2015

FAQ

Which project can be hosted on Joinup? My program licensed under the EUPL uses components licensed under the GPL! Can I modify the EUPL? Are Joinup hosted projects “non-commercial” (program downloaded...
Last update: 22/12/2020

Impact of the EUPL

The EUPL is the licence of choice for distributing software from the European institutions or agencies and from several Member States. The EUPL has made such distribution possible on a much wider...

Do you have any questions related to licensing or legal support?

Please fill this Contact Form (selecting "legal issue" in the Category field).