Node-RED
Node-RED is a visual programming tool for wiring together hardware devices, APIs, and online services. With its browser-based flow editor, you can create complex logic by simply dragging and dropping nodes - perfect for IoT projects and home automation.
Trusted by leading companies
What is Node-RED?
Node-RED is a visual programming tool for wiring together hardware devices, APIs, and online services. With its browser-based flow editor, you can create complex logic by simply dragging and dropping nodes - perfect for IoT projects and home automation.
Built on Node.js's event-driven, non-blocking model, Node-RED is ideal for running at the network edge on low-cost hardware like Raspberry Pi as well as in the cloud. Its visual programming approach makes it accessible to users of any technical background.
Ready for Node-RED?
We install, host and operate Node-RED for your company - either on our secure, GDPR-compliant infrastructure in Germany or other locations, as well as on-premise in your own environment.
With 24/7 monitoring, enterprise support, backups and professional maintenance, we ensure maximum availability and reliable operation of your Node-RED instance.
Visual Flow Editor
Browser-based development environment for creating flows by simply connecting nodes without programming knowledge.
Extensive Node Library
Over 5,000 pre-built nodes for various tasks - from input/output to complex data processing operations.
JavaScript Functions
Embed JavaScript code in Function nodes for custom logic and data manipulation capabilities.
Context Management
Efficient data storage and retrieval within flows using flow, global, and environment variables.
Error Handling
Robust error handling to ensure stable and reliable flow execution in production environments.
Debug Capabilities
Comprehensive debug nodes for inspecting message payloads at various points throughout your flows.
Node-RED in Action
Experience Node-RED in Action
See how simple and efficient Node-RED works in practice. From installation to productive use.
Node-RED Installation & Einrichtung
Professional installation on your infrastructure – on-premise, cloud or hybrid
On-Premise
In your data center
- Installation on bare-metal, VM or Docker
- Optimal performance configuration
- Integration with existing Active Directory/LDAP
- SSL certificate & reverse proxy
- Backup strategy & monitoring
- Security hardening following best practices
- Documentation & training
Cloud Installation
AWS, Azure, Hetzner & more
- Installation on AWS, Azure, GCP, Hetzner
- Terraform/IaC setup (optional)
- Kubernetes or Docker Compose
- Auto-scaling configuration
- Load balancer & CDN integration
- CloudWatch/monitoring setup
- Cost optimization & best practices
Enterprise Setup
High-availability setup with comprehensive security and compliance features
- High-availability cluster setup
- VPN access (e.g. WireGuard, NetBird, Tailscale)
- SSO integration (e.g. Keycloak, Authentik, Azure AD)
- Multi-factor authentication (MFA)
- Audit logging & compliance
- Disaster recovery plan
- Custom security policies
- Dedicated contact person
Security & Secure Access
Secure access and access control for your installation
VPN Access
WireGuard, NetBird or Tailscale
SSO Integration
Keycloak, Authentik, Azure AD
Multi-Factor Auth
TOTP, WebAuthn, YubiKey
Firewall & Hardening
Fail2Ban, Rate Limiting, IP Whitelisting
Secure Access via VPN
We set up secure VPN access to your installation – ideal for remote work and external employees.
- Zero-Trust Network Access (ZTNA)
- Encrypted connections
- Easy client setup for all devices
- Centralized access management
Supported VPN Solutions:
What's Included in the Service
Full-service installation with no hidden costs
Node-RED Development & Integration
Node-RED bridges visual programming and complex backend logic. The modular architecture allows us to develop custom nodes that seamlessly integrate into existing flows.
Admin API & Runtime Control
We control the Node-RED runtime programmatically: deploying flows, restarting instances, or dynamically adjusting credentials via API – ideal for multi-tenant systems.
Event-Driven & Async I/O
Node-RED is natively asynchronous. We develop custom nodes that react to hardware events, MQTT messages, or database triggers and start complex logic chains.
Custom Nodes (JavaScript/HTML)
When standard nodes aren't enough, we develop custom NPM modules. Packaged as native Node-RED nodes, with custom HTML configuration interface and performant JS logic in the backend.
Concrete Use Cases
How we implement Node-RED development in practice.
Legacy Machine Integration (IIoT)
Old production machines speak proprietary protocols (S7, Modbus, serial interfaces) that modern cloud systems don't understand.
Node-RED as edge gateway translates local machine data, filters out noise, and sends only relevant metrics securely to the cloud via MQTT/HTTPS.
API Orchestration & Middleware
A frontend needs to query 5 different APIs, leading to load times and CORS issues.
A Node-RED flow aggregates all 5 requests in the backend, transforms JSON structures, and delivers a clean, consolidated response object to the frontend.
Dynamic Rule Engine for End Users
Non-technical employees should be able to modify automation rules (If X then Y) without calling the developer.
We integrate the Node-RED editor 'read-only' or restricted into your admin panel, so power users can visually adjust logic.
Enterprise Managed Hosting
Enterprise Grade
Open source enterprise-ready for productive workloads - we run your applications with highest security standards and enterprise support
Why Enterprise Managed Hosting?
Open source software for business-critical processes requires professional maintenance, continuous updates, and enterprise-grade support. With our Node-RED Enterprise Managed Hosting, you get the necessary infrastructure and support to reliably operate open source in production environments. Backups, SLAs, telephone support, and personal contact - so you can focus on your core business.
Installation on Your Infrastructure
Looking for a custom solution?
We also offer customized Node-RED Enterprise solutions for your specific requirements. Contact us for an individual quote.
Interested in Node-RED?
Good choice – we'll help you get started or with operations.
Manage Your Stack in the Customer Portal
Monitor your infrastructure in real-time, schedule maintenance and get direct support – all in one central portal.
- Real-time infrastructure status
- Reschedule maintenance windows yourself
- View complete access logs
- Direct support without detours
Node-RED in Complete IoT Stacks
Using Node-RED for IoT automation and data integration? merkaio seamlessly integrates Node-RED into production-ready IoT infrastructures.
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What do our customers say?
Let's Talk About Your Idea
Whether a specific IT challenge or just an idea – we look forward to the exchange. In a brief conversation, we'll evaluate together if and how your project fits with WZ-IT.
Trusted by leading companies
Timo Wevelsiep
Lead IoT Solutions Architect