Node-RED

Node-RED is a browser-based flow programming tool that makes it easy to connect devices, APIs, and online services. Originally created by IBM in 2013 and now managed by the OpenJS Foundation, it has become the standard visual programming platform for IoT, home automation, and integration workflows. With millions of installations and over 4,000 nodes contributed by the community, Node-RED can connect almost any service or device through its intuitive browser-based editor.

Common Use Cases

IoT engineers use Node-RED to gather sensor data, process data streams, and trigger actions on connected devices without needing to write custom middleware. Home automation enthusiasts integrate platforms like Home Assistant, Zigbee2MQTT, and Google Home to create unified control flows. Backend developers use it to quickly prototype and deploy API integrations — transforming, directing, and enriching data between services such as Slack, Telegram, email, and databases. Operations teams build monitoring dashboards and alert systems that connect Prometheus metrics or log aggregators to notification channels and ticketing systems.

Key Features

• Browser-based drag-and-drop flow editor with live deployment and an integrated debug panel
• Over 4,000 nodes you can install for MQTT, HTTP, WebSocket, TCP, serial ports, databases, and cloud APIs
• JavaScript function nodes for custom logic for data transformation inside flows
• Subflows for creating reusable, self-contained logic components shared across projects
• Built-in projects feature with Git integration for flow version control and team collaboration
• Encryption for credentials to protect API keys, passwords, and tokens saved in flows
• Context storage for sharing persistent data across flows and nodes
• REST API for remote deployment and management of flows from CI/CD pipelines
• Active community flow library for sharing and importing ready-made integrations

Why deploy Node-RED on Hostinger VPS

Running Node-RED on a Hostinger VPS gives you full control over your automation workflows and all the data they process. Cloud-hosted automation platforms set rate limits, restrict certain node types, and keep access to your flow logic and credentials. On your own VPS, there are no limits on flows, message processing capacity, or connected devices — and you can install any community node without any limitations. Connect directly to local hardware, internal network services, or private APIs that cloud platforms can never reach. Node-RED's efficient Node.js runtime runs comfortably on modest VPS resources while handling high-frequency automation and IoT data streams at scale.