Node RED
n8n

Node RED | n8n | |
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210 | 359 | |
21,500 | 116,992 | |
1.2% | 13.6% | |
9.1 | 10.0 | |
3 days ago | 4 days ago | |
JavaScript | TypeScript | |
Apache License 2.0 | Apache 2.0 with Commons Clause |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Node RED
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My personal favorite MCP server which has became part of my life
GitHub: github.com/node-red/node-red
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Erlang-Red: Node-Red with an Erlang Back End
Ahh, you didn't create Node-RED editor. That's an external project.
https://nodered.org/
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Hardware Metrics Collection with IOT Devices
Node Red is a unique application that provides a graphical programming environment. With this, you can define input to output transformation with any level of complexity, including reading, parsing, formatting, and output with optional conditionals. For example, here is a flow definition that parses MQTT JSON messages that communicate if a node is alive, and then store this information in InfluxDB:
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Home Assistant and ESP Home: How to use MQTT Integration for Dynamic Device Configuration
For a simple test, I created this Node Red flow that listens to homeassistant/status messages. HA itself will send messages that communicate when its started or when it is about to shutdown. These messages, and a custom message I send from within HA, could be seen:
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Show HN: Mashups – Resurrecting Yahoo Pipes, my side project
Also check out https://nodered.org/ and https://github.com/huginn/huginn if you're interested in free and open-source software you can run yourself.
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Data Visualization on the e-RT3 using Node-RED, InfluxDB Cloud, and Grafana
Node-RED (e-RT3) Flow-based, low code development tool
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Top 15 Open-Source Low-Code Projects with the Most GitHub Stars
GitHub https://github.com/node-red/node-red GitHub Stars 19.1k Most Recent Update on GitHub 2 weeks ago Open Source License Apache 2.0 Number of Active Contributors This Year 13 Acceptance of External PRs Yes Official Website https://nodered.org/ Documentation https://nodered.org/docs/
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Major updates from the open source community: Release Radar · June 2024
Want a low code application for event-driven applications? Then Node-RED is your go to. The new update brings a breaking change, with Node-RED now requiring Node 18.x or later. The team have added new features and updated dependencies to the editor, and there are lots of fixes within the editor. Check out the release notes for all the details.
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Low-code drag-and-drop tool for building RESTful APIs with in minutes.
During a college project in the field of IoT, I came across a simple and powerful solution for wiring together hardware devices called NODE-RED developed originally by IBM. The project was very simple as it only involved controlling electrical appliances and sensing room temperature using a temperature sensor. The whole hardware system was connected to the network using the MQTT Protocol, and using Node-Red, it was just a few minutes of work to connect all sensors and respond accordingly.
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Devin, the First AI Software Engineer
Good question.
I expect that we're moving into a phase of AIs talking to AIs, and initially it'll be wasteful (because it'll be mostly English), but eventually, they'll derive their own language and seamlessly upgrade protocols when they determine they're talking to an AI. No clue how that will come about or what that language will look like, but honestly, it's kind of exciting.
Really interesting to think about how they might handle context, as well. Even though we have much bigger context windows (and they'll only get larger), context management is still a resource-management issue, which we'll probably continue to refine, as well. Imagine different strategies for managing both what is brought into the context of each request, as well as what form it could take (level of detail, additional references or commentary on it, etc). Things could get really unreadable even in English, and still be very interpretable for an LLM.
W.r.t. the graph-oriented interfaces, are you thinking something like Node-RED [1]? I'm seeing more and more people mention having LLMs produce non-text or structured outputs, like JSON, UI, and other things. Easy to imagine an LLM that wires together various open-source platforms, on-demand. Something like Node-RED for pipelines/functions, some UI tools for visualization/interactivity, other platforms for messaging, etc...
[1] https://nodered.org/
n8n
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Automate the Boring Stuff! Check Out This Open-Source Tool
n8n stands for Node Automation. It’s an open-source platform that lets you connect different apps, move data between them, and build powerful automations.
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AI Agent Frameworks Are Blowing Up — Here Are the Top 10 for Developers in 2025
n8n isn’t just automation — with the right modules, it becomes a powerful AI agent platform.
- Creating a Webhook API Endpoint with n8n
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What is n8n? Open Source Automation Explained
Navigate to the n8n website. Open your browser and go to n8n.io.
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🤖 A Beginner's Guide to Automating Anything with n8n Workflows
In today’s productivity-obsessed world, manually handling repetitive business processes isn’t just inefficient — it’s a waste of your team's creative energy. That’s where tools like n8n come in. This open-source workflow automation tool lets you connect APIs, trigger logic, and build powerful systems visually.
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Automating Meeting Transcripts and Summaries with n8n, ChatterBox & OpenAI
Picture this: it's Friday after a week filled with countless online meetings. The details blur, and writing meeting notes is the last thing you want to do. Imagine having a personal bot that joins your meetings, records everything, and emails you concise summaries and action items. In this tutorial, we'll build exactly that using n8n, a powerful low-code automation tool, combined with ChatterBox's meeting bot API and OpenAI's summarization capabilities. This AI-driven workflow detects your upcoming meetings from Google Calendar, dispatches a bot to transcribe them, and then emails you a succinct summary right afterward—saving you valuable time and effort.
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The Googly way of Making AI Agents
I want to start by saying, this not a guide or post explaining how to use tools like n8n or ToolHouse AI (By the way, already written a blog about how to use ToolHouse AI, you can read it by going here).
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How I Built a Timezone-Aware Email Automation Using n8n + OpenAI
I recently built an automated email outreach system using n8n + OpenAI, and it only sends emails during the lead's local business hours.
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Self-hosting like a final boss: what I actually run on my home lab (and why)
n8n
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Designing your own node-based visual programming language
How sophisticated your language is depends only on your whim, honestly. Even most automatization solutions like Make or n8n make do with just simple connections between node bubbles, with edges only signifying the execution flow. They balance it out with complex node editors, and values from other blocks are used in templates like how you would write a Nunjucks-templated HTML page. A more gamedev-related example is Twine.
What are some alternatives?
Home Assistant - :house_with_garden: Open source home automation that puts local control and privacy first.
StackStorm - StackStorm (aka "IFTTT for Ops") is event-driven automation for auto-remediation, incident responses, troubleshooting, deployments, and more for DevOps and SREs. Includes rules engine, workflow, 160 integration packs with 6000+ actions (see https://exchange.stackstorm.org) and ChatOps. Installer at https://docs.stackstorm.com/install/index.html
Huginn - Create agents that monitor and act on your behalf. Your agents are standing by!
Domoticz - Open source Home Automation System
dify - Production-ready platform for agentic workflow development.
