Node RED
Self-HostedOpen-source visual flow editor for IoT and automation
Overview
Node RED is a low-code visual tool for wiring together hardware devices, APIs, and online services. It uses a drag-and-drop interface to create flows (automations) without extensive coding. Deployable on local servers, edge devices (like Raspberry Pi), or cloud instances via Docker, npm, or pre-built images. Supports MQTT, HTTP, WebSockets, and integrates with IoT platforms (AWS IoT, Azure IoT Hub) and devices (Arduino, Raspberry Pi). Ideal for rapid prototyping of IoT solutions, home automation, and data pipelines, with a large library of community-contributed nodes extending functionality.
Self-Hosting Resources
Below is a reference structure for docker-compose.yml.
⚠️ Do NOT run blindly. Replace placeholders with official values.
version: '3'
services:
node_red:
image: <OFFICIAL_IMAGE_NAME>:latest
container_name: node-red
ports:
- "8080:<APP_INTERNAL_PORT>"
volumes:
- ./data:/app/data
restart: unless-stopped Key Features
- Visual drag-and-drop flow editor for low-code automation
- Extensible via 1000+ community-contributed nodes
- Supports edge (Raspberry Pi) and cloud deployment
- Integrates with MQTT, IoT platforms, and hardware devices
Frequently Asked Questions
? Is Node RED hard to install?
No—Node RED is easy to install via npm (npm install -g node-red), Docker (docker run -p 1880:1880 nodered/node-red), or pre-built images for Raspberry Pi. It runs on Linux, Windows, macOS, and edge devices with minimal setup for basic use.
? Is it a good alternative to IFTTT for IoT automation?
Yes—Node RED offers more flexibility and control than IFTTT, especially for local/edge deployments (no cloud dependency). It supports advanced IoT protocols like MQTT and custom logic, making it better for complex IoT projects, though IFTTT is simpler for basic cloud-based automations.
? Is Node RED completely free?
Yes—Node RED is open-source under the MIT License, so it’s completely free to use, modify, and distribute. All core features and community-contributed nodes are available at no cost with no hidden fees.
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Tool Info
Pros
- ⊕ Privacy-focused (self-hosted, no cloud dependency for local flows)
- ⊕ No subscription fees or paid tiers
- ⊕ Large, active community for support and extensions
Cons
- ⊖ Requires basic setup of a server or edge device
- ⊖ Advanced custom logic may need JavaScript knowledge
- ⊖ Needs manual security configuration for production use