n8n

// Overview

n8n is a workflow automation platform that connects apps and APIs through a visual node editor. You drag nodes onto a canvas, wire them together, and the workflow runs the steps in order, so a lot of the glue code you would normally write by hand is handled for you. It ships with 400+ integrations and 900+ ready-made workflow templates.

It is aimed at technical teams who want more control than a typical no-code tool gives. When the built-in nodes are not enough, you can drop into JavaScript or Python, pull in npm packages, or add your own custom nodes. n8n also has native AI steps built on LangChain, so you can build AI agent workflows that use your own data and models.

Within the low-code / no-code workflow space, n8n's main draw is self-hosting under its fair-code license: the source is always visible and you can deploy it anywhere, including air-gapped setups. A managed cloud option exists if you prefer not to run it yourself.

// What it does

• Visual node editor for building automations by connecting 400+ apps and APIs
• Drop into JavaScript or Python and add npm packages when the visual nodes are not enough
• Native AI steps built on LangChain for agent workflows using your own data and models
• Self-hostable under a fair-code license with always-visible source code
• 900+ ready-to-use workflow templates to start from
• Enterprise features including advanced permissions, SSO, and air-gapped deployments

// Getting started

You can try n8n in seconds with npx (Node.js required) or run it as a Docker container. Both start a local editor at http://localhost:5678.

npx n8n

docker volume create n8n_data
docker run -it --rm --name n8n -p 5678:5678 -v n8n_data:/home/node/.n8n docker.n8n.io/n8nio/n8n

http://localhost:5678

Commands and code are distilled from the project's own documentation — always check the official repo for the latest.

// When to use it

• Sync data between SaaS tools (CRM, spreadsheets, databases) without writing custom integration code
• Build AI agent workflows that pull from your own data and models using the LangChain-based nodes
• Automate internal team processes like notifications, approvals, and scheduled reports
• Self-host automation in a controlled or air-gapped environment to keep data on your own infrastructure

// How n8n compares

n8n alongside other open-source workflow automation tools AI/TLDR tracks, ranked by GitHub stars.