n8n

Overview

n8n is an open-source workflow automation tool — self-hostable Zapier alternative. Visual editor with 400+ integrations, code nodes (JavaScript/Python), webhooks, cron triggers, and branching logic. Free when self-hosted.

Instructions

Step 1: Self-Host with Docker

# docker-compose.yml — n8n with PostgreSQL persistence
services:
  n8n:
    image: n8nio/n8n
    ports: ["5678:5678"]
    environment:
      N8N_BASIC_AUTH_ACTIVE: "true"
      N8N_BASIC_AUTH_USER: admin