n8n (pronounced 'n-eight-n') is a tool for workflow automation. Think of it as a set of digital building blocks for connecting different applications and services. Instead of manually copying data from a spreadsheet to a database, or from an email to a task list, you can build an automated process—a workflow—to do it for you.

At its core, n8n helps different software talk to each other without you needing to write complex code. It’s built on a visual, node-based system. This makes it accessible for people who aren't developers, while still being powerful enough for those who are. Because it's open-source, you have a lot of flexibility in how you use it.

The heart of n8n is its visual editor. This is where you design your automations by connecting individual steps, called nodes, with lines. Each node represents a specific action, like reading a file, sending an email, or filtering data. You drag nodes onto a canvas and link them together to define the flow of information.

This visual approach allows you to see exactly how data moves from one step to the next. You can follow its path, see what changes are made at each stage, and easily troubleshoot if something goes wrong. It's an intuitive way to build and manage even complex automations.

To get started with n8n, you only need to understand a few core concepts. These are the fundamental pieces you'll use to build every automation.

Nodes: These are the individual building blocks of a workflow. Each node performs a single action. There are nodes for hundreds of different apps like Slack, Google Drive, and Notion, as well as generic nodes for tasks like manipulating data or making conditional decisions with IF statements.

Triggers: A trigger node is the special node that starts a workflow. It tells the automation when to run. A trigger could be a set schedule (e.g., every Monday at 9 AM), a webhook that listens for an event from another app (e.g., a new purchase in your e-commerce store), or a manual start.

Credentials: This is how n8n securely connects to your accounts on other services. Instead of entering your password every time you use a Google Sheets node, you save your credentials once in n8n's secure storage. The workflow then uses these credentials to access your apps on your behalf.

One of the key decisions when starting with n8n is choosing where your workflows will run. There are two main options, each with its own advantages.

Whether you choose to host it yourself or use the cloud version, the core functionality of building and running workflows remains the same. The choice depends entirely on your technical comfort, budget, and specific needs.

Now that you've got the fundamentals, let's test your knowledge.

Understanding these core concepts is the first step toward building powerful automations with n8n.