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Home/Categories/No-Code & Low-Code/Node-RED
icon of Node-RED

Node-RED

Open source alternative to Microsoft Power Automate, Zapier and Make

Low-code programming platform for building event-driven applications and automating workflows.

23.2K stars
image of Node-RED
Contents

Repository

Stars
23.2K
Forks
3.8K
License
Apache-2.0
Latest
4.1.10
Last commit
3 days ago
Last verified
May 29, 2026
Repo
node-red/node-red ↗
JavaScript
Apache-2.0
Active this week
Visit websiteGitHub repo
  1. 01Who Node-RED is for
  2. 02The problem it solves
  3. 03How it solves it
  4. 04Strengths and trade-offs
  5. 05Node-RED vs alternatives
  6. 06Tech stack
  7. 07FAQ
  8. 08Similar open-source tools
TL;DR

Node-RED is an Apache-2.0 flow-based programming tool for wiring devices, APIs, and services together. It replaces Zapier or cloud automation tools when developers and operators need local automation for IoT, home lab, industrial, or integration workflows. Its browser editor makes event flows visible while still allowing JavaScript functions when needed.Apache-2.0 · JavaScript · 23.2K stars · Active this week

who it's for

Who Node-RED is for#

IoT developers wiring devices and APIs

Node-RED fits MQTT, HTTP, hardware, and edge workflows that need local automation.

Skip if:

Skip if you only need simple SaaS app triggers managed by a vendor.

Operations teams automating internal services

The visual editor helps teams understand data movement while still allowing custom logic.

Skip if:

Skip if your organization requires strict code-review workflows for every automation change and cannot govern visual flows.

the problem

The problem it solves#

how Node-RED solves it

How it solves it#

Visual flow editor

Node-RED uses a browser-based editor where users connect nodes to model event and data flows.

Large node ecosystem

The community node library covers common protocols, APIs, databases, devices, and transformation steps.

JavaScript function nodes

When built-in nodes are not enough, developers can add custom JavaScript logic inside a flow.

Local and edge deployment

Node-RED can run on servers, Raspberry Pi devices, and edge environments where cloud automation tools cannot reach local networks.

strengths · trade-offs

Strengths and trade-offs#

Strengths

  • Strong fit for IoT and edge workflowsNode-RED was designed around wiring hardware, events, and services together, which makes it better for device automation than many SaaS workflow tools.
  • Apache-2.0 licenseThe permissive license supports internal and commercial automation deployments with low licensing friction.

Trade-offs

  • -Flows can become hard to governLarge visual flows need naming, version control discipline, and review practices or they can become as hard to maintain as unstructured scripts.
  • -Not a SaaS app connector marketplace cloneNode-RED has many integrations, but it does not match Zapier’s managed app catalog and account-auth experience for business users.
versus alternatives

Node-RED vs alternatives#

tech stack · detected from GitHub

What it's built on#

Languages
JavaScript
Frameworks
Express
frequently asked

FAQ#

Is Node-RED open source?

Yes. Node-RED is open source under the Apache-2.0 license.

Can Node-RED replace Zapier?

Node-RED can replace Zapier for self-hosted automation, local devices, APIs, and IoT workflows. Zapier remains easier for managed SaaS app automation.

Does Node-RED require coding?
also worth a look

Similar open-source tools#

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Activepieces

Activepieces

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AI-Flow

AI-Flow

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n8n

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Windmill

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Additional details

Language
JavaScript
Open issues
491
Contributors
277
First release
2013

Categories

No-Code & Low-CodeDeveloper ToolsDevOps & CI/CD

Tags

Low-codeWorkflow AutomationDeveloper ToolsIoTAPI ClientWorkflow OrchestrationCoding

Automation work often falls between no-code tools that hide too much and scripts that only one developer understands. Teams connecting devices, MQTT topics, HTTP APIs, databases, and local services need a way to see the flow of data and change it without rebuilding a custom integration app each time.

Cloud automation platforms can be a poor fit when the workflow touches local networks, industrial devices, or sensitive data. Paying per task also becomes awkward for high-frequency device and event streams.

Node-RED vs Zapier

Node-RED and Zapier both automate workflows, but they serve different environments. Node-RED runs where your devices and services are; Zapier runs as a managed cloud automation service.

CriteriaNode-REDZapier
LicenseApache-2.0Proprietary
Self-hostingYesNo
Best fitIoT, local networks, custom integrationsManaged SaaS app workflows

Node-RED is the better choice for local automation, edge devices, and workflows that need custom protocol handling. Zapier is better when business users want a hosted catalog of SaaS connectors with minimal infrastructure work.

Many flows use visual nodes without code, but JavaScript function nodes are available when custom logic is needed.