Open Source Software

Featured content

Last update: 06/03/2026

EU Open Source Solutions Catalogue

The European open source solution catalogue is a federation of open source solutions created by and for European public services .

Last update: 30/09/2026

About OSOR

The Open Source Observatory (OSOR) is a place where you can share knowledge (news, events, solutions) on open source in public administrations.

European PoliciesOpen Source SoftwareDigital innovation

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

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

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

Last update: 19/11/2025

New learning path on Open Source for EU Public services

A learning path is a collection of different courses enabling you to acquire fundamental knowledge and skills in specific topics.

Open Source SoftwareReusable Software ComponentsEuropean Policies

IN THE SPOTLIGHT

Last update: 01/10/2026

September 2026 highlighted content and updates on the Portal

Discover what is new on the Portal this month. This article highlights newly published solutions, technical releases, and peer learning events’ highlights.

Digital governmentArtificial intelligenceOpen Source Software

Last update: 02/09/2026

Switzerland 2026 Country Report

Switzerland has moved from accepting open source software in the public sector to a legal framework that requires federal authorities to publish the source code of software developed by or for them.

Open Source Software

Last update: 21/09/2026

ITB v1.30.0 released

Release 1.30.0 of the Interoperability Test Bed software is now available.

ICTReusable Software Components+2 topics

LATEST NEWS

Last update: 22/10/2026

ITB v1.30.2 released

Release 1.30.2 of the Interoperability Test Bed software is now available.

ICTOpen Source Software+2 topics

Last update: 20/10/2026

SEMIC 2026: discover what’s on the programme

SemanticsDigital governmentOpen Source Software

Last update: 19/10/2026

Two days of knowledge sharing and hands-on workshops

On 8 and 9 October, the annual European Legislation Identifier (ELI) seminar took place in Brussels, bringing together representatives from 12 Member States at different stages of ELI implementation.

CollaborationDigital government+5 topics