Summary: n8n is a visual, node-based workflow automation platform that connects apps, APIs, databases, and AI. It can be self-hosted so your data stays on your own infrastructure.

Basic Concepts

  • Workflow: a chain of automated steps.
  • Trigger: what starts it (webhook, schedule, new email, database change).
  • Node: one step (HTTP request, Google Sheets, JavaScript code, AI).
  • Credential: encrypted stored login details.
  • Execution: one run of a workflow, with a full log.

Why Businesses Choose n8n

  • Visual, yet code can be added for complex logic.
  • Can be self-hosted (guide).
  • Hundreds of integrations plus an HTTP node for any API.
  • Supports AI nodes and agents (AI agents).
  • The cloud version prices by execution, not by step. Check the official pricing page for the latest details.

12 Popular Use Cases

  1. Website form lead → CRM + sales notification.
  2. E-commerce order → ERP + automatic invoice.
  3. Successful payment → send receipt + update spreadsheet.
  4. Daily report from several sources → WhatsApp/Slack/email.
  5. Website uptime monitoring → alert.
  6. AI summary of incoming email → task in a project tool.
  7. WhatsApp chatbot + AI.
  8. PDF invoice extraction → structured data (OCR + LLM).
  9. Cross-system employee onboarding.
  10. Stock sync across channels.
  11. Scheduled content publishing to multiple channels.
  12. Scheduled database backup + notification.

A Simple Flow Example

Webhook (form) → Validate → Look up contact in CRM → (exists: update | new: create) → Slack notification → Automatic email reply

Limitations to Know

  • For apps without an API you need RPA/browser automation.
  • Large workflows need discipline: naming, error handling, versioning.
  • Self-hosting means you own security and backups.

FAQ

Is n8n free?

The community edition can be self-hosted under specific license terms; check the official license for commercial use. The cloud version is paid.

Do I need to know how to code?

Not for simple flows, but JavaScript/Python helps for complex logic.

n8n vs Zapier vs Make? See the full comparison.

Next steps

Need an n8n workflow for your business? Oneflux designs, builds, and maintains them. Talk to us about your needs.