Simpl-Open
Learn about Simpl-Open, the secure middleware that supports data access and interoperability in European data initiatives.
Simpl-Open is the open-source middleware that empowers data initiatives to build their own data sharing systems. It offers modular components that cover essential functionalities for data exchange, while ensuring security, sovereignty, and adherence to leading European standards for data sharing.
Being free and open-source means anyone can study, change and distribute to the Simpl software stack. This openness fosters collaboration and continuous improvement, enabling the community to contribute to Simpl’s growth and evolution.
Streamline your development
Simpl-Open helps you move faster by offering a complete solution. It identifies and integrates proven components from the data sharing ecosystem, and develops any missing elements to fill functional gaps. This gives you a robust foundation to build on.
Build trust into every interaction
Simpl-Open enforces secure communication protocols between all participants, creating a trusted environment for data sharing. You can collaborate confidently, knowing your data is protected from end to end.
Configure to fit your needs
Simpl-Open allows you to customise onboarding rules, identity attribute definitions, data set metadata, and others to fit your unique requirements, giving you full control over how your data ecosystem operates.
Inclusion of new types of providers
Simpl-Open expands your possibilities by including Infrastructure and Application providers in its architecture. This enables you to create entirely new value chains and deliver innovative services.
Stay in control of your data
With Simpl-Open you define and enforce access and usage policies across all resource transactions. This ensures your data is used exactly as intended, supporting your sovereignty and compliance goals.
New alternatives for data sharing
Simpl-Open empowers you to design custom data sharing models that bundle infrastructure, application and datasets. This flexibility helps you align data sharing with your business strategy.
Simpl-Open initial Scope
Simpl-Open is the core of the Smart Middleware for Cloud-to-Edge Federations and Data Spaces, an open-source foundation designed to connect European data spaces, cloud platforms, and edge environments.
It provides the essential capabilities needed to support:
- Interoperability: Seamless integration with existing and future solutions, including European Open Science Cloud (EOSC) components and sector-specific tools.
- Portability: Movement of datasets, services, and applications across infrastructures without vendor lock-in.
- Adaptability: Flexibility to respond to evolving needs, regulatory changes, and feedback from pilot deployments.
- Extensibility: A modular architecture that supports innovation and growth without disrupting existing services.
- Security and trust: Authentication, authorisation, and verifiability for all participants and processes.
- Regulatory alignment: Support for European legal frameworks such as GDPR
, the Data Act , AI Act , and eIDAS . - Ease of adoption: Clear onboarding, structured documentation, and user-friendly tools to accelerate integration.
Simpl-Open is not just a technical project, it is an open, evolving ecosystem. These high-level functional goals act both as an implementation baseline and an invitation to the community to contribute your code, test your use cases, and to propose improvements. The platform is designed to grow, adapt, and extend with your input.
This approach ensures that Simpl-Open will remain future-proof, resilient, and able to evolve with Europe’s data economy.
To dive deeper into Simpl-Open development approach and status, explore the recommended pages below.
Requirements
Learn about the requirements that guide Simpl-Open Development.
Architecture
Understand the details of Simpl-Open architecture.
Development Status
Explore Simpl-Open current development status and state of play.