Lesson 1 of 12
Phase 1 · Getting Started
What is N8N?
Visual Automation Explained
N8N is a powerful open-source workflow automation tool that lets you connect apps, services, and APIs visually — no complex coding required. In this lesson you'll understand exactly what N8N is, how it stacks up against Zapier and Make, and the core building blocks of every workflow.
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Self-Hostable
Your data, your server
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400+ Nodes
App integrations
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Visual Builder
Drag-and-drop canvas
Section 1
What Exactly Is N8N?
N8N (pronounced "n-eight-n" or "nodemation") is a free, open-source workflow automation tool that works like a visual flowchart for your software. Instead of writing code to connect applications, you drag nodes onto a canvas, configure them, and connect them with arrows.
Think of each N8N workflow as a recipe: it starts when something happens (a trigger), processes data through a series of steps (nodes), and ends by doing something useful (an action) — all running automatically without you lifting a finger.
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Key insight: N8N is not just a no-code tool. It gives you the power to write custom JavaScript/Python code inside nodes when you need full control — making it the best of both worlds for developers and non-developers alike.
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Process
Transform Data
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Section 2
N8N vs Zapier vs Make — Head to Head
All three tools automate workflows, but they differ significantly in pricing model, openness, and flexibility. Here is a direct comparison to help you understand why N8N is often the best choice for developers and power users:
| Feature | N8N | Zapier | Make (Integromat) |
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| Pricing Model | Free self-hosted | Paid from $19/mo | Free tier (limited) |
| Open Source | ✔ Yes (MIT) | ✘ No | ✘ No |
| Self-Hostable | ✔ Yes | ✘ No | ✘ No |
| Custom Code | ✔ JS / Python | Limited JS | Limited JS |
| App Integrations | 400+ nodes | 6,000+ apps | 1,500+ apps |
| Data Privacy | Your server | Zapier's servers | Make's servers |
| Execution Limits | Unlimited (self) | Task-based limits | Operation limits |
| AI/LLM Nodes | ✔ Built-in | Add-on integrations | Third-party modules |
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Bottom line: If you value data privacy, unlimited executions, custom code, and AI integration — N8N is the clear winner. Zapier wins on breadth of out-of-the-box integrations, but N8N lets you build custom nodes for anything not covered.
Section 3
Core Concepts: The Building Blocks
Every N8N workflow is built from four fundamental concepts. Master these and you can build any automation:
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Nodes
The individual building blocks. Each node does one specific job: fetch data from an API, send an email, transform JSON, check a condition, or connect to a database. Nodes are configured with parameters and can have multiple inputs and outputs.
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Connections
The arrows between nodes that define data flow. Data (called items) flows from one node's output to the next node's input. You can branch, merge, and route connections to create complex logic paths.
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Workflows
A complete automation — the full diagram of nodes and connections saved together. A workflow always starts with at least one trigger node and ends at one or more action nodes. You can have multiple workflows running simultaneously.
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Executions
Each time a workflow runs, that is one execution. N8N logs every execution with full input/output data at each node — making debugging easy. You can see exactly what data flowed through every step.
Section 4
Real-World Use Cases
N8N is used across every industry to eliminate repetitive tasks. Here are the most common automation categories:
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Marketing Automation
Auto-post social media, nurture email sequences, track campaign metrics, sync leads to CRM.
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DevOps Pipelines
GitHub → build → test → deploy → notify Slack. Automate CI/CD notifications and incident alerts.
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Data Synchronization
Keep databases, spreadsheets, and SaaS apps in sync. Schedule bulk data transfers and transforms.
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Customer Support
Auto-respond to tickets, route issues, update helpdesk from form submissions, send status updates.
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Finance Workflows
Invoice generation, expense report automation, payment webhooks, Stripe → accounting sync.
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HR Automation
Onboarding checklists, Slack account provisioning, leave approval flows, org chart updates.