Reusable Software Components

Featured Content

Last update: 13/02/2024

Once-Only Technical System (OOTS)

The Once-Only Technical System (OOTS) streamlines data retrieval for cross-border procedures, enhancing trust, efficiency, and data exchange among EU public administrations and citizens. It is an EC solution.

Collaboration

Last update: 08/09/2025

eDelivery

Secure, interoperable data/document exchange across EU borders using AS4 Access Points, promoting vendor-neutral, reliable, and scalable communication for public administrations and businesses. It is an EC solution.

Reusable Software ComponentseDelivery and eInvoicing

Last update: 13/02/2024

eID

The eID Building Block enhances cross-border digital services in the EU by enabling secure electronic identification and transactions in compliance with the eIDAS Regulation, promoting interoperability, trust, and security. It is an EC solution.

Reusable Software ComponentseIdentity and eSignature

Last update: 24/04/2024

EU Digital Identity Wallet

The European Digital Idenity Framework harmonizes authentication to digital services and enables sharing relevant identity data for citizens and businesses.

SemanticsOpen Source Software+2 topics

Last update: 08/08/2025

Interoperability Test Bed

Interoperability Test Bed tests the interoperability and the conformance of your digital services. It is a free service and a reusable OSS. It is an EC solution.

ToolsOpen Source SoftwareICT

Last update: 10/04/2025

Website Evidence Collector

Website Evidence Collector is an OSS (under EUPL), streamlines privacy inspections of websites, gathering evidence like cookies, and external requests. It is an EU solution (EDPS).

ICT securityOpen Source SoftwareReusable Software Components

Last update: 13/02/2024

eSignature

The DIGITAL eSignature Building Block enables electronic signatures in compliance with the eIDAS Regulation, supporting secure, cross-border digital interactions for public services, businesses, and citizens. It is an EC solution.

Reusable Software ComponentseIdentity and eSignature

Last update: 13/02/2024

eInvoicing

The eInvoicing Building Block boosts EU eInvoicing, adhering to EU standards for economic benefits. It aids public/private sectors in digital transition, offering support services for smooth adoption of eInvoicing. It is an EC solution.

Reusable Software ComponentseDelivery and eInvoicing

Last update: 16/02/2024

eTranslation

eTranslation is a machine translation tool that helps public administrations and businesses exchange information and documents across all official EU languages, Icelandic and Norwegian.

Languages and translation

IN THE SPOTLIGHT

Last update: 07/10/2025

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

Last update: 23/09/2025

Latvia’s revamped open data portal

Latvia’s revamped open data portal, data.gov.lv, now hosts over 900 datasets from 100+ publishers, and empowers users to suggest, vote, and discover data through a reusable, community-driven design.

Digital governmentOpen Source Software

Last update: 25/09/2025

Public sector employees required to use French-developed Tchap app

The French government mandates the use of the open source communication platform Tchap to public officials.

ToolsOpen Source Software+3 topics

Latest News

Last update: 02/10/2025

ITB in support of the European Health Data Space

The European Commission’s Directorate-General for Health and Food Safety (DG SANTE), leading the implementation of the European Health Data Space (EHDS), is relying on the Interoperability Test Bed (ITB) as its conformance testing platform.

ICTStandardisation+3 topics