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Open Source Software

Open source software enables users to use, study, redistribute, and modify software freely. It fosters interoperability by promoting standards-based development and collaboration among stakeholders. Keep up-to-date with the latest practices and tools of open source technology to ensure interoperability in digital public services.

Featured Content

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Last update: 26/03/2025

EU Open Source Solutions Catalogue

European Open-Source Software Solutions Catalogue

Open Source Software
0
Collection
Last update: 01/09/2025

About OSOR

Mission of the Open Source Observatory of the European Commission
European PoliciesOpen Source SoftwareDigital innovation
1
Custom page
Last update: 22/05/2025

EC Open Source Programme Office (EC OSPO)

As each EU member state, the Commission has an Open Source Programme Office(OSPO) facilitating activities around the open source.
ICTOpen Source Software
76
Collection
Last update: 24/03/2025

EUPL

This EUPL collection focuses on open licensing in general. It includes the European Union Public Licence and more: A licensing assistant and guidance for all IT developers, practitioners or users
European PoliciesLegal+3 topics
119
Collection
Last update: 17/03/2025

Find and compare software licenses

A unique tool allowing everyone to compare and select open licences based on their content.
Legal
7
Custom page
Last update: 25/03/2024

Introduction to Open Software Licensing course

This free e-learning course provides a solid understanding about software licensing and licence types. It is a European Commission solution.
Culture and educationLicensing
3 Archived
Solution

IN THE SPOTLIGHT

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24/10/2025
Physical event

Software Freedom Kosova 2025

Software Freedom Kosova (SFK) is an annual event, bringing together developers, students, researchers, entrepreneurs, and activists to connect, learn, and promote free/libre and open source software…
Open Source Software
0
Event
03/11/2025
Hybrid event

Mautic World Conference 2025

Attending the Mautic World Conference offers a unique opportunity to dive into the world of Mautic and privacy-focused marketing automation, directly engaging with pioneers and peers in the industry.
Open Source SoftwareScience and technology+4 topics
0
Event

Latest News

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Last update: 06/10/2025

New OSOR eLearning course!

The OSOR team is thrilled to announce the launch of a new eLearning course on open source software for EU Public Administrations, now available on the Interoperable Europe Academy.
Open Source Software
0
News
Last update: 03/10/2025

XWiki and OpenProject establish interoperability

XWiki and Open Project have announced their collaboration to provide an integrated open source alternative tool for work management and collaboration.
CollaborationTools+2 topics
0
News
Last update: 29/09/2025

A Multiple-Case Study on Public Sector Open Source

New study reveals how European local governments can successfully adopt and share open source solutions
Open Source Software
1
News