NodeOPCUA: The Open-Source OPC UA Stack
The world's leading open-source, cross-platform OPC UA stack for Node.js, empowering developers to build robust and scalable industrial applications.
From a Developer's Need to a Global Standard
The Genesis of NodeOPCUA
"When I started NodeOPCUA in 2014, the goal was simple: to create a modern, accessible, and powerful OPC UA stack using JavaScript. I wanted to bridge the gap between traditional industrial automation and the dynamic world of web technologies. Today, it has grown into a cornerstone of the IIoT ecosystem, driven by a vibrant open-source community. It's more than just code; it's a commitment to open standards and collaborative innovation."
Etienne Rossignon - Creator of NodeOPCUA & CEO of Sterfive
The Foundation for Your Industrial Connectivity
NodeOPCUA is the engine behind a vast range of industrial applications, from simple device clients to complex, distributed IIoT platforms. Its flexibility and performance make it the ideal choice for any project.Embedded OPC UA Servers
Add Native OPC UA to Your Devices
For OEMs and machine builders, NodeOPCUA provides a lightweight and efficient way to embed a fully compliant OPC UA server directly into your hardware. Expose your device's data model securely and make it ready for Industry 4.0 integration.
Industrial IoT Gateways
Bridge OT and IT Worlds
Build powerful gateways that collect data from various industrial protocols and expose it through a unified OPC UA interface. NodeOPCUA's asynchronous nature makes it perfect for handling thousands of concurrent connections and data streams.
Cloud Integration & Data Pipelines
Streamline Your Data-to-Cloud Strategy
Create robust data pipelines to push industrial data to cloud platforms like AWS, Azure, and Google Cloud. Use NodeOPCUA clients to subscribe to data changes and events, and leverage the vast Node.js ecosystem for data processing and storage.
Academic Research & Education
Learn and Experiment with OPC UA
NodeOPCUA is an invaluable tool for students, researchers, and educators. Its open-source nature and clear JavaScript/TypeScript codebase make it an excellent platform for learning the intricacies of the OPC UA standard and experimenting with new ideas.
A Modern, Robust, and Community-Driven SDK
NodeOPCUA is not just another SDK. It's a comprehensive, battle-tested platform built with modern software principles to ensure reliability, security, and developer productivity.
- Cross-Platform & Versatile
Runs anywhere Node.js runs—from small embedded Linux devices to powerful cloud servers, on Windows, macOS, and Linux.
- Full OPC UA Compliance
A from-scratch implementation of the OPC UA standard, ensuring interoperability and validating the specification itself.
- Modern JavaScript & TypeScript
Leverage the power of an asynchronous, event-driven framework. The entire API is available in TypeScript for a great developer experience.
- Robust Security Model
Built-in support for the full range of OPC UA security policies, including user authentication, encryption, and certificate management.
- Vibrant Open-Source Community
Actively developed and maintained on GitHub with contributions from a worldwide community of developers and industrial users.
- Professional Support by Sterfive
Get expert support, training, and custom development services from the creators and main maintainers of NodeOPCUA.
Master NodeOPCUA with Practical Examples
"NodeOPCUA by Example" is your hands-on guide to building real-world industrial applications. From basic clients and servers to advanced security and cloud integration, this book accelerates your learning curve.
- Step-by-step tutorials
- Ready-to-use code snippets
- Covers security best practices
- Cloud & IIoT integration patterns
Get Involved with NodeOPCUA
Ready to Build the Future of Industrial Automation?
Whether you're building your next product, integrating systems, or just learning, NodeOPCUA has everything you need. Join our community, contribute to the project, or get professional support from Sterfive to accelerate your development.
NodeOPCUA is more than just a library; it's a vibrant ecosystem. We invite you to explore its capabilities, contribute to its growth, and leverage our expertise to ensure your success.