What is n8n and how does it work?

n8n (pronounced "n-eight-n") is an open-source workflow automation tool that allows integration between different applications, APIs, and processes with great flexibility. Unlike platforms like Zapier or Make, n8n offers total freedom for customization, with support for JavaScript code at every workflow step.

The name n8n comes from the abbreviation of "node to node," with the "8" representing the intermediate nodes. With it, you can build powerful workflows and automate repetitive tasks, from Slack notifications to database synchronization.

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Table of Contents

• What is n8n used for?
• How does n8n work in practice?
• n8n vs Zapier: What’s the difference?
• Is n8n completely free?
• Use cases with n8n
• Example automation with n8n
• FAQ about n8n

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What is n8n used for?

n8n is primarily used for:

• Automating manual tasks
• Creating integrations between systems, APIs, and databases
• Orchestrating complex workflows between different tools
• Developing backend processes without needing a dedicated server

Businesses and developers use n8n to save time, reduce human errors, and scale operations with less reliance on paid platforms with limited features.

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How does n8n work in practice?

n8n’s interface is visual, based on nodes, where each node represents an action or integration. By connecting these nodes, you build customized workflows.

You can create workflows like:

• Webhook → Processing → Notification
• Google Sheets → Filter → Send to Slack
• Database → Formatting → External API

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n8n vs Zapier: What’s the difference?

Feature	n8n	Zapier
Open Source	Yes	No
Free	Yes (self-hosted)	Limited
Code Usage	Full (JS in any node)	Limited
Workflow Templates	Advanced & chained	Simple & linear
Hosting	Local or cloud	Cloud-only (Zapier)

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Is n8n completely free?

Yes, n8n is open source and can be used for free in self-hosted environments. However, there is also an official cloud version with paid plans, offering additional support and infrastructure.

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Use cases with n8n

Companies like StepStone, Musixmatch, and Delivery Hero use n8n to automate hundreds of complex tasks, achieving significant gains in operational efficiency and time savings, along with a notable reduction in development and maintenance time.

• Marketing automation: Email and post scheduling
• Data ETL: Collection, processing, and data delivery
• REST API integration: Between CRMs, internal systems, and apps
• Security alerts: Log monitoring with Slack or Discord notifications

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Example automation with n8n

One of the biggest advantages of building automations in n8n is its intuitive visual interface, which allows you to create workflows by dragging and connecting nodes. Behind this user-friendly interface, each workflow is represented by a JSON file—a standardized text format describing all automation details: nodes, configurations, connections, and logic involved.

After building a workflow, you can easily export its content as JSON with just a few clicks. This is useful for backups, versioning, sharing with the community, or even migrating to another environment.

Additionally, you can also do the reverse: import ready-made workflows from JSON files. The n8n community shares many examples that you can copy and paste directly into the editor, saving time and learning from tested solutions.

This feature makes n8n not only a powerful automation tool but also a true collaboration ecosystem, where entire workflows can be shared like reusable code snippets.

{
  "nodes": [
    {
      "parameters": {
        "path": "receber",
        "method": "POST"
      },
      "name": "Webhook Input",
      "type": "n8n-nodes-base.webhook"
    },
    {
      "parameters": {
        "functionCode": "return [{ json: { status: 'ok' }}];"
      },
      "name": "Process Data",
      "type": "n8n-nodes-base.function"
    }
  ],
  "connections": {
    "Webhook Input": {
      "main": [
        [
          {
            "node": "Process Data",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}

When creating workflows in n8n, it’s essential to follow best practices for organization, modularity, maintenance, monitoring, security (credentials and access), and consistent testing to ensure quality and performance.

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Useful links about n8n

• Official Documentation
• Community (Forum)
• Official Discord
• Template Library

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FAQ about n8n

What does n8n mean?

It’s short for "node to node." The "8" represents the number of letters between the two "n"s.

Is n8n open source?

Yes, the project is open source and available on GitHub.

Does n8n replace Zapier?

It depends on the use case. For developers and businesses needing flexibility, yes. But Zapier is simpler for beginners.

What language does n8n use?

n8n is built with Node.js and allows JavaScript in function nodes.

Can I use n8n commercially?

Yes, especially in the self-hosted version, under the Fair-code license.

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