What Is n8n? A Plain-English Guide to the Automation Tool

n8n is an open-source workflow automation tool that connects your apps, moves data between them, and can run AI steps inside the flow. This guide explains what n8n is, how it works, the difference between self-hosting and n8n Cloud, and when it is the right tool for your business.

What is n8n, exactly?

n8n is a workflow automation platform. You build workflows on a visual canvas by connecting nodes, where each node is a single step: a trigger that starts the flow, an app action, a data transform, a condition, or an AI step. Because n8n is open source and can be self-hosted, you own your data and avoid the per-task pricing that other tools charge.

The simplest way to picture it is as the wiring between your tools. When a form is submitted, n8n can enrich the lead, add it to your CRM, alert your sales channel, and send a reply, all automatically and in seconds.

How n8n works: triggers, nodes, and connections

Triggers

Every workflow starts with a trigger: a new form submission, an incoming email, a schedule, a webhook, or a new record in an app. The trigger decides when the workflow runs.

Nodes and actions

After the trigger, each node performs one action, such as create a CRM contact, send a message, call an API, or ask an AI model to draft a reply. You connect nodes in the order you want the work to happen.

Data between nodes

Data flows from one node to the next, and you map fields so the right value lands in the right place. When you need custom logic, a code node lets you drop into JavaScript, which is what makes n8n far more flexible than click-only tools.

Self-hosted vs n8n Cloud

Dimension	Self-hosted	n8n Cloud
Cost	Free software, you pay for a server	Monthly subscription
Maintenance	You (or a partner) manage it	Managed for you
Data control	Full, stays on your server	Hosted by n8n
Best for	Volume, custom needs, privacy	Fast start, no ops

What can you build with n8n?

Almost any repetitive, tool-to-tool process: lead capture into your CRM, AI agents and RAG chatbots on your own data, instant notifications, data sync between systems, scheduled reports, and content workflows. A good starting point is our roundup of ready-to-use n8n templates.

How n8n compares to Zapier and Make

Zapier is the easiest for simple app-to-app tasks, Make is a visual middle ground, and n8n is the most flexible and cost-effective at scale, especially self-hosted. We break the three down in detail in n8n vs Zapier vs Make, and cover the numbers in is n8n free.

Is n8n hard to use?

There is a learning curve, but it is gentle for simple flows and rewarding as you go deeper. Starting from a template and changing one thing at a time is the fastest way to get comfortable. When a workflow becomes business-critical, that is usually the point to bring in help so it is built with proper error handling and monitoring.

n8n features at a glance

Feature	What it means
Visual workflow editor	Build automations by connecting nodes on a canvas, no build step required.
400+ integrations	Connect mainstream apps, plus any service with an HTTP API.
Code when you need it	Drop into JavaScript or Python in a code node for custom logic.
AI and agent nodes	Call LLMs, build AI agents, and query a vector store inside a workflow.
Self-hosting	Run it on your own server so data never leaves your environment.
Execution-based pricing	Charged per workflow run, not per step, which stays cheap at scale.

Who uses n8n?

n8n suits a wide range of teams. Agencies use it to run client automations without paying per-task fees on every step. Operations and revenue teams use it to connect their CRM, inbox, sheets, and internal tools so routine work runs itself. Developers reach for it when a workflow needs custom code or a self-hosted deployment that a click-only tool cannot provide. And founders use it to wire together an AI agent or a lead pipeline in an afternoon instead of commissioning a custom build.

Is n8n secure?

Security is one of the strongest arguments for n8n. When you self-host, your data and credentials stay inside infrastructure you control rather than passing through a third-party cloud. Credentials are stored encrypted, workflows run in an isolated environment, and you can add role-based access so team members only see what they should. For businesses that handle customer or financial data, that control is often the deciding factor over a fully hosted competitor.

How much does n8n cost to run?

If you self-host, the software is free and your only cost is a small server, which for most workloads runs a few dollars a month. If you use n8n Cloud, you pay a monthly subscription based on executions. Either way there is no per-task charge, so a workflow with twenty steps costs the same as one with two. We break the numbers down fully in is n8n free.