# What Is n8n? A Plain-English Guide for Business Owners > What is n8n? A plain-English guide to workflows, nodes, triggers and credentials, with three real small-business examples and what n8n costs. Source: https://learn.ynteractive.com/content/blog/what-is-n8n · Updated 2026-10-01 · Free from Stepthrough (https://learn.ynteractive.com) By [Robert Breen](https://learn.ynteractive.com/content/about) · Published October 1, 2026 · Updated October 1, 2026 · 6 min read n8n · Automation · Beginners n8n is an [automation](https://learn.ynteractive.com/content/glossary/automation) tool that connects the apps a business already uses, like Gmail, Google Sheets and OpenAI, into workflows that run on their own when something happens. This guide is for owners and office staff who keep hearing the name and want to know what it does before spending any money. You can try n8n free in a practice copy with the [Find and Use n8n Templates](https://learn.ynteractive.com/content/find-and-use-n8n-templates) lesson, which takes about 9 minutes. ## What does n8n actually do? n8n runs a chain of steps for you every time a starting event happens, such as a new email, a form submission or 7am on a weekday. Each chain is called a workflow. You build it on a canvas by adding steps and connecting them, mostly by clicking and picking from dropdowns. A typical workflow reads like a sentence: "When a booking form is submitted, add a row to the bookings sheet, then send the customer a confirmation email." Once published, it runs every time. ## What are workflows, nodes and triggers in n8n? A workflow is the whole automation, a node is one step in it, and a trigger is the first node, the event that starts the workflow. These three words cover most of what you'll see in n8n. - **Workflow:** everything on one canvas. You start one with **Create workflow**. - **Node:** one step, like **Google Sheets: Get row(s) in sheet**, **Filter** or **Gmail: Send a message**. You add the next node with the **+** after the previous one. - **Trigger:** the first node, added with **Add first step**. The Stepthrough lessons use **On a schedule**, **On chat message**, **On webhook call**, a [Gmail trigger](https://learn.ynteractive.com/content/glossary/gmail-trigger) called **On message received**, and a form that comes with a template. One idea makes n8n click: a node runs once for every item it receives. In the [Daily Job Alerts](https://learn.ynteractive.com/content/n8n-daily-job-alerts-google-sheets-gmail) lesson, the Google Sheets node reads six rows, the Filter passes five, and one Gmail node sends five emails, each to a different tech. You never write a loop. ## What are credentials in n8n? A credential is a saved connection that lets n8n use one of your accounts, such as Gmail, Google Sheets or an [OpenAI API](https://learn.ynteractive.com/content/glossary/openai-api) key. You create one from a node's **Credential** dropdown with **Create new credential**. For Google accounts on n8n Cloud, you click **Sign in with Google**, pick the account, tick the permissions Google lists and click **Continue**. n8n saves the credential, so the next workflow can reuse it from the dropdown instead of signing in again. Gmail and Google Sheets each get their own credential. ## What does Publish mean in n8n? Publish turns a workflow on, so it runs by itself whenever its trigger fires. Until you click **Publish**, a workflow only runs when you test it. Testing comes first. **Test step** runs one node, and **Execute workflow** (or **Test workflow**) runs the whole thing once while you watch. After a run, each node shows a green check and the lines between nodes show how many items passed through. When the results look right, click **Publish**. A saved workflow is not the same as a published one. ## What can n8n do for a small business? n8n handles repeated office tasks that follow the same steps every time, with or without AI. Three examples from the free lessons, each built for a made-up business: LessonBusiness (made up)What the workflow doesAI?Find and Use n8n TemplatesHillside Pet GroomingA booking form adds each request to a Google Sheet and emails the customer a confirmationNoDaily Job AlertsRapid Flow PlumbingAt 7am, reads today's jobs, skips unassigned ones and emails each job to its techNoAI Social Media Idea AgentBrightPath MarketingYou chat with an AI agent for post ideas, and it saves the ones you like to a Google SheetYes The template example shows that you don't have to start from a blank canvas: the n8n gallery has thousands of free workflows, and you import one with **Use for free**. The job alerts example shows that plenty of useful automations need no AI at all. The agent example shows what AI adds: a step that can read, write and decide, then use tools like Google Sheets. ## Try it free, step by step **Find and Use n8n Templates**. Skip the blank canvas. Find a ready-made workflow in the n8n template gallery, import it into your workspace, connect Google Sheets and Gmail, test it with a real form entry and publish it. You do every step yourself in a practice copy of n8n, it checks your work as you go, and “Do it for me” finishes any step you get stuck on. Free, and nothing touches your real accounts. [Start the free lesson](https://learn.ynteractive.com/modules/n8n-templates) [Or read the full step-by-step guide](https://learn.ynteractive.com/content/find-and-use-n8n-templates) ## Does n8n use AI? n8n can use AI, but it doesn't have to. AI comes in through the **AI Agent** node, which needs a chat model such as the **OpenAI Chat Model**. An n8n agent has a few parts: a trigger, the AI Agent with a **System Message** saying who it works for, a chat model to think with, **Simple Memory** to remember the conversation, and one or more tools, like the **Google Sheets Tool**. In the [AI Social Media Idea Agent](https://learn.ynteractive.com/content/n8n-ai-agent-tutorial-google-sheets) lesson, the model is gpt-5-mini, which the lesson calls fast and cheap. The model runs on an OpenAI API key, not on a ChatGPT subscription. [OpenAI API vs ChatGPT Plus](https://learn.ynteractive.com/content/blog/openai-api-vs-chatgpt-plus) explains the difference. ## How much does n8n cost? n8n Cloud is a paid service after a free trial, or you can self-host n8n on your own server. AI steps add a separate cost: the OpenAI API is pay-as-you-go and billed apart from any ChatGPT plan, and the lessons suggest starting with about $10 of credit. A workflow with no AI, like the job alerts or the booking template, only needs n8n and the Google account you already have. Check n8n's and OpenAI's pricing pages for current prices before you commit. The Stepthrough lessons themselves are free and run in practice copies, so nothing is sent or billed while you learn. ## Who should use n8n, and who should start with ChatGPT? n8n fits a task that repeats daily with the same steps and touches apps you already use. If your problem is writing one good email or summarizing one meeting, start with ChatGPT instead. n8n is a good next step if: - Someone copies data from one app to another every day, like jobs from a sheet into emails. - Requests arrive through a form or inbox and each one needs the same handling. - You'd be comfortable spending an hour building and testing before it saves time. Start with ChatGPT if you mostly need help with writing, thinking or one-off documents. The [ChatGPT Jump Start](https://learn.ynteractive.com/content/path/chatgpt-jump-start) path starts with three short lessons on prompts, meeting notes and customer replies, and nothing has to be connected or published. ## How do I start learning n8n? Start with a template, then build one automation without AI, then your first AI agent. [Learn n8n from Zero](https://learn.ynteractive.com/content/blog/learn-n8n-for-beginners) lays out the full order with six free projects, and the [n8n Jump Start](https://learn.ynteractive.com/content/path/n8n-jump-start) path and the [n8n tool page](https://learn.ynteractive.com/content/tool/n8n) list the n8n lessons. ## Key takeaways - n8n is an automation tool that connects apps like Gmail, Google Sheets and OpenAI into workflows that run on their own. - An n8n workflow is made of nodes, and the first node is a trigger, such as On a schedule, On webhook call or a Gmail trigger. - An n8n node runs once for every item it receives, so one Gmail node can send a different email for each row of a sheet. - An n8n workflow only runs on its own after you click Publish; testing first with Test step or Execute workflow is the habit to build. - n8n Cloud is paid after a free trial (or you can self-host), and AI steps add pay-as-you-go OpenAI API costs. ## Frequently asked questions **Is n8n free?** n8n Cloud has a free trial and is then a paid service. You can also self-host n8n. The Stepthrough n8n lessons are free. **Do I need to know how to code to use n8n?** No. The lessons build every workflow by clicking, choosing from dropdowns and pasting short expressions like `{{ $json.Tech }}`. The expressions are the closest thing to code, and [n8n Expressions for Beginners](https://learn.ynteractive.com/content/blog/n8n-expressions-for-beginners) explains them. **Is n8n the same as ChatGPT?** No. ChatGPT is a chat assistant you type into. n8n is an automation tool that runs workflows, and it can call an OpenAI model through an API key as one step. **What is the easiest first n8n workflow?** Importing a template from the n8n gallery is the fastest start. A scheduled workflow with no AI, like emailing each tech their jobs at 7am, is a good first build of your own. ## Free lessons in this post - [Find and Use n8n Templates](https://learn.ynteractive.com/content/find-and-use-n8n-templates): Skip the blank canvas. Find a ready-made workflow in the n8n template gallery, import it into your workspace, connect Google Sheets and Gmail, test it with a real form… - [Daily Job Alerts: Email Each Tech Their Jobs from Google Sheets with n8n](https://learn.ynteractive.com/content/n8n-daily-job-alerts-google-sheets-gmail): Every morning at 7, n8n reads a plumbing company's jobs sheet, skips anything not assigned yet, and emails each job to the tech it's assigned to — customer, address… - [n8n AI Agent Tutorial: Save Social Media Ideas to Google Sheets](https://learn.ynteractive.com/content/n8n-ai-agent-tutorial-google-sheets): Build an AI agent for BrightPath Marketing that generates social media post ideas and saves them to Google Sheets — chat trigger, AI Agent, system prompt, model… ## Related terms Plain-English definitions, each with an example from a free lesson. [Automation](https://learn.ynteractive.com/content/glossary/automation) · [Gmail Trigger](https://learn.ynteractive.com/content/glossary/gmail-trigger) · [OpenAI API](https://learn.ynteractive.com/content/glossary/openai-api) · [AI agent](https://learn.ynteractive.com/content/glossary/ai-agent) · [API key](https://learn.ynteractive.com/content/glossary/api-key) · [Append row](https://learn.ynteractive.com/content/glossary/append-row) · [Autoresponder](https://learn.ynteractive.com/content/glossary/autoresponder) · [Brand voice](https://learn.ynteractive.com/content/glossary/brand-voice) [The full AI glossary](https://learn.ynteractive.com/content/glossary) ## Related prompts - [Appointment reminder text prompt](https://learn.ynteractive.com/content/prompts/appointment-reminder-text-prompt): Write day-before reminder texts for each job on tomorrow's schedule: the time window, who's coming, one prep step and an easy… - [Automation candidates prompt](https://learn.ynteractive.com/content/prompts/automation-candidates-prompt): Rank your repetitive tasks by which to automate first, using only your own counts and minutes, with a first workflow sketched… - [Automation time savings estimate prompt](https://learn.ynteractive.com/content/prompts/automation-time-savings-estimate-prompt): Estimate what one automation saves from your own numbers only: minutes before and after, setup and upkeep, costs you look up… - [Customer intake form questions prompt](https://learn.ynteractive.com/content/prompts/customer-intake-form-questions-prompt): Design the questions for a booking or intake form: only what you need to do the job, each with a field type, help text and a… [All free prompt templates](https://learn.ynteractive.com/content/prompts) ## Visual guides The same ideas as quick visual guides: swipe through the slides, or read each one as text. - [5 Steps to an n8n AI Agent That Saves to Google Sheets](https://learn.ynteractive.com/content/visual/5-steps-n8n-ai-agent-google-sheets): A visual guide: build an n8n AI agent that writes social media ideas and saves each one as a Google Sheets row, in 5 steps from the free lesson. - [5 Steps to Find, Import and Run an n8n Template](https://learn.ynteractive.com/content/visual/5-steps-use-an-n8n-template): A visual guide: find an n8n template, import it, connect your own Google Sheets and Gmail accounts, make it yours and run a test. - [Mistake to Avoid: Scheduling Before Setting the Timezone](https://learn.ynteractive.com/content/visual/mistake-scheduling-before-the-timezone): A visual tip for n8n schedules: set the workflow timezone before the schedule, so 7am means 7am where your business is. [All visual guides](https://learn.ynteractive.com/content/visual) ## Keep reading - [n8n Triggers Explained: Which One Starts Your Workflow?](https://learn.ynteractive.com/content/blog/n8n-triggers-explained): n8n triggers explained: schedule, Gmail, chat, webhook and form triggers, how to test each one, and how the trigger changes your AI Agent's prompt. - [Learn n8n from Zero: Free Projects in the Right Order](https://learn.ynteractive.com/content/blog/learn-n8n-for-beginners): Learn n8n for beginners with six free, hands-on projects in a sensible order, from templates to AI agents to a web form, plus what you need for real. - [How to Use n8n Templates (and Get Them Working)](https://learn.ynteractive.com/content/blog/how-to-use-n8n-templates): How to use n8n templates: find one in the gallery, import it, connect your accounts, swap in your own sheet and email, test it and publish. 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