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Node-RED

Flow-based programming for event-driven apps

Automation & Workflows ★ 23.5k stars Easy setup Apache-2.0

Node-RED is a flow-based development tool for wiring together hardware, APIs, and online services with a browser editor. It targets makers and integrators, especially in IoT. It is deployed via Docker or npm.

Official siteSource code

Key features

  • Browser-based flow editor
  • Thousands of community nodes
  • Strong IoT and MQTT support
  • Lightweight runtime

Pros & cons

Strengths

  • Great for IoT automation
  • Large node library
  • Easy to learn

Trade-offs

  • Complex flows get tangled
  • Not aimed at business SaaS

Node-RED replaces

Self-hosted Zapier alternatives

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