What Is n8n? A Complete Guide

n8n is an open-source workflow automation tool. It lets you connect apps, databases and APIs, and automate multi-step processes by building a visual flow — trigger, actions, conditions — instead of writing custom integration code from scratch. You can self-host it on your own server or use n8n's cloud service.

What sets it apart from purely no-code tools like Zapier is that n8n lets you drop into actual JavaScript or Python when a flow needs custom logic — which makes it popular with developers and technical teams who want the speed of a visual builder without hitting a wall on anything non-trivial.

Is n8n free?

Short answer: the self-hosted community edition is free and open-source. The cloud version has a free trial, with paid plans that scale by execution volume, and the enterprise tier is quote-based. We wrote a dedicated breakdown of each tier: Is n8n free? Plans and pricing explained.

When n8n stops being enough

n8n is genuinely good at what it's built for — but past a certain point of scale or complexity, teams start running into its limits:

• The self-hosted instance becomes another piece of infrastructure someone on your team has to maintain, patch and monitor.
• Workflows that started simple accumulate into a tangle of nodes that's hard to debug when something breaks in production.
• Execution-based cloud pricing gets expensive fast once a workflow runs on every order, every lead, or every support ticket.
• Some enterprise systems (legacy ERPs, niche regional platforms) don't have a ready-made node, so you end up writing custom code inside n8n anyway.
• There's no one clearly accountable for the automation once it's core to the business — it's "the workflow someone set up," not a maintained system.

The alternative: automation built around your actual process

Instead of adapting your process to a generic workflow builder, a custom-built automation is designed around exactly what your business does — integrated directly with your systems via API, with clear ownership and no monthly execution meter. For a straightforward, well-defined workflow, n8n is often the right call. For something that's becoming core infrastructure, custom is usually the better long-term bet.