🧩 What is N8N?
n8n (pronounced “n-eight-n”) is an open source tool that allows non-developers to implement complex task automation. It is a “node-based” workflow builder that assembles 400+ pre-built interlocking modules (nodes) to create automation pipelines between APIs-apps-data sources. Similar to Zapier-Make, but open-source – self-hosted – scalable is a key differentiator.
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✨ Core features
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Visual workflow builder.
Drag and drop to connect nodes to organize business logic. Conditional branching – error handling also handled by GUI.
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400+ pre-integrated nodes. 🔌 Integration examples:
- Email (Gmail/Outlook) + Slack + Google Sheets.
- Twitter + Notion + MySQL
- Webhooks + Telegram + AWS S3
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Self-hosted & Open Source Source code open on GitHub (AGPL-3.0 license). Deployed on a private server with Docker-Kubernetes to ensure data security**.
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JavaScript customization.
Inject JS/Python code as a Function Node on any node. API response manipulation – useful for adding custom logic.
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🛠️ How it works: “Trigger → Action” chain.
Example: Automating a customer pizza order.
- Webhook node: receive order information
IF
node: check if “pizza toppings” are included- Telegram node: send a notification to the chef
- Google Sheet node: record order history
[Webhooks] → [IF] → [Telegram]
⤷ [False] → [Error logging]
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🚀 Getting Started Guide
**1 minute installation with Docker
docker run -it --rm \
--name n8n \
-p 5678:5678 \
n8nio/n8n
Connect: http://localhost:5678
Try the cloud for free. Create an account at n8n.cloud → Start building workflows immediately.
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🔥 Real Use Cases
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**Marketing Automation
- Publish new blog → Automatically post to Twitter-Facebook + send to mailing list
[RSS] → [Twitter] + [MailChimp]
- Publish new blog → Automatically post to Twitter-Facebook + send to mailing list
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**Data synchronization
- CRM New Customer → Google Sheet Backup + Slack Notification
[Hubspot] → [Google Sheet] + [Slack]
- CRM New Customer → Google Sheet Backup + Slack Notification
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**Error monitoring
- Server down → SMS-discord alert + generate incident report
[Pingdom] → [Twilio] + [Notion] ```plaintext
- Server down → SMS-discord alert + generate incident report
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⚖️ Pros and Cons Analysis
PROS | CONS | |
---|---|---|
✅ Unlimited runs (self-hosted) | ❌ Beginner learning curve exists | |
✅ 1500+ community templates | ❌ No mobile app support | |
✅ Workflow versioning (Git) | ❌ Incomplete Koreanization | ❌ No mobile app support |
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💡 Conclusion: Who Should Use It?
n8n is good for
- Developers: Reduce API integration time by 70% ⏱️
- Planners/Marketers: Design automations without relying on IT 🧩.
- Startups: Save $20,000+/month in SaaS costs 💰.
> 🔗 Official resources > – Template Gallery > – GitHub repository > – Community Forum
With the philosophy of “No Code≠No Logic“, n8n provides the flexibility to implement even complex automation, create your first workflow today! 🚀.