A visual tool for wiring the Internet of Things

Node-RED is a tool for wiring together hardware devices, APIs and online services in new and interesting ways.

Getting Started

For Linux/OS X, if you already have Node.js installed, run:

$ sudo npm install -g node-red
$ node-red

Otherwise, head over to the Getting Started guide.

Already got Node-RED installed and wonder where the download button has gone? Head over to the Upgrading guide.

Latest version: v0.11.2 (npm)

Browser-based flow editing

Node-RED provides a browser-based flow editor that makes it easy to wire together flows using the wide range nodes in the palette. Flows can be then deployed to the runtime in a single-click.

JavaScript functions can be created within the editor using the a rich text editor.

A built-in library allows you to save useful functions, templates or flows for re-use.

Built on Node.js

The light-weight runtime is built on Node.js, taking full advantage of its event-driven, non-blocking model. This makes it ideal to run at the edge of the network on low-cost hardware such as the Raspberry Pi as well as in the cloud.

With over 120,000 modules in Node's package repository, it is easy to extend the range of palette nodes to add new capabilities.

Social Development

The flows created in Node-RED are stored using JSON which can be easily imported and exported for sharing with others.

An online flow library allows you to share your best flows with the world.

A selection of the nodes available


JS Functions
Mustache Templates


Twitter • Twilio
Email • IRC • XMPP


Filesystem • MongoDB
MySQL • PostgreSQL




Raspberry Pi
BeagleBone Black