What Is n8n? The Workflow Automation Tool Explained

If you have ever wished a repetitive task would just do itself, copy new form entries into a spreadsheet, chase an invoice, post updates to Slack, that is exactly what n8n is built for. It has become one of the most talked-about automation tools, especially now that it runs AI agents. Here is a clear, honest explanation of what n8n is, how it works, and whether it is right for you.

Last checked: November 2, 2026. Pricing and limits change; confirm the current details on n8n's site.

What n8n actually is

n8n is a node-based workflow automation platform. Each "node" is a step, a trigger (something that starts the flow), an app action (create a row, send a message), a bit of logic, or an AI model. You connect nodes left to right on a canvas, and when the trigger fires, data flows through each step automatically.

It was founded by Jan Oberhauser and first released publicly in 2019, and the company is based in Berlin. It connects to well over a thousand apps and services, and because any node can also run custom JavaScript or Python, it bridges the gap between simple no-code tools and fully hand-coded integrations.

How a workflow works (using the example above)

The screenshot above is a real n8n workflow, and it is a good way to see the idea in action. Reading it left to right:

1. Trigger: "New invoice in AP inbox" watches a Microsoft Outlook mailbox.
2. AI screening: an AI agent node (powered by a Claude model) reads the invoice and decides what to do.
3. Tools the agent can use: read-only lookups in QuickBooks to find the matching bill and check the vendor.
4. Human in the loop: a Slack message asks finance to approve the payment, and the workflow waits for a reply.
5. Action: once approved, it calls the Wise API to pay the vendor, then posts a confirmation to a #finance channel.

That single flow replaces a chain of manual steps, and the AI agent handles the judgment in the middle. This is the shift that made n8n popular: workflows are no longer just "if this, then that," they can reason.

Self-hosted vs cloud: the key decision

The biggest choice with n8n is where it runs.

Self-hosted Community Edition is free: you run it on your own server (often a small cloud box costing only a few dollars a month) and there is no cap on how many workflows or executions you run. The trade-off is that you set it up and keep it updated yourself.

n8n Cloud removes the server work. n8n hosts everything, and you pay a monthly subscription. The important detail many people miss: Cloud is billed by the number of workflow executions, not by the number of workflows, so a few busy automations can use your allowance faster than a long list of rarely-triggered ones. Tiers have historically started around €20 per month for a couple of thousand executions and rise steeply for higher volumes [check current pricing on n8n's site, as it changes].

Is n8n open source? The honest answer

You will often see n8n called "open source," but the precise term is fair-code under a Sustainable Use License. In plain terms:

• The source code is public, and you can self-host it free for your own internal use.
• You cannot take n8n and resell it as your own hosted service to other people.

So it is source-available and extremely open in practice, but not an OSI-approved open-source license. If licensing purity matters to you, that distinction is worth knowing.

n8n vs Zapier vs Make

These three come up together constantly. The short version:

• Zapier is the friendliest for non-technical people and has the largest app directory, but it is cloud-only and can get expensive at volume.
• Make sits in the middle with a strong visual builder.
• n8n gives the most control, the option to self-host, and first-class custom code and AI agents, in exchange for asking a little more technical comfort.

If you are weighing bundled convenience against flexible, best-in-class pieces more broadly, our guide on all-in-one vs separate tools applies the same thinking to your wider software stack.

Pros and cons

Who n8n is best for

• Technical freelancers and small teams who want powerful automation without per-task pricing, especially if self-hosting.
• Anyone building AI agents or workflows that need to call tools, make decisions, and keep a human in the loop.
• Privacy-sensitive work, since self-hosting keeps data on your own infrastructure.

Who should probably look elsewhere: complete non-coders who want the simplest possible setup and never want to touch a server may be happier starting with Zapier, then graduating to n8n later. If you want AI assistants for everyday tasks rather than full automations, see our guide to the best AI tools that actually save time.

A note on cost and running it cheaply

One reason n8n is popular with budget-conscious builders is that a self-hosted instance can run on a small server for only a few dollars a month, with no execution meter. That makes it a natural fit for the kind of lean setup we describe in the zero-budget software stack, provided you are comfortable doing the initial setup.

Our verdict