// screenshot of nodered.org ↗
Node-RED is a flow-based programming tool for wiring devices, APIs, and services together — drag-and-drop nodes representing HTTP requests, MQTT messages, database queries, transformations. Originally built by IBM for IoT, now the de-facto standard for visual automation in Home Assistant and prosumer IoT.
Node-RED is a flow-based programming tool for wiring devices, APIs, and services together — drag-and-drop nodes representing HTTP requests, MQTT messages, database queries, transformations. Originally built by IBM for IoT, now the de-facto standard for visual automation in Home Assistant and prosumer IoT.
If your automation needs are too complex for IFTTT but you don't want to write code, Node-RED is the answer.
Concrete scenarios where teams pick Node-RED over the SaaS alternative.
Home Assistant integration, MQTT-driven flows
wire sensors to cloud APIs visually
combine multiple APIs without writing glue code
internal automations across services
Raspberry Pi GPIO, serial, USB interfaces
If your team profile matches one of these, Node-RED is a strong fit out of the box.
building flows for Home Assistant
experimenting with sensor networks
building API mashups and personal automations
teaching programming concepts visually
in larger orgs automating ops tasks
When evaluating self-hosted options for this category, here are the dimensions on which Node-RED consistently lands above the alternatives.
The stack you'll plug Node-RED into — services, protocols, and adjacent apps in the BluixApps catalog.
nodered/node-red:4.0 (release-tagged)/data/data (flows + credentials + node settings)Operational guidance from running this in production — what to do before you scale, what to lock down, what surprises people.
/data1880:1880 · nodered/node-red:latest