What is n8n and Why Should You Use It?
n8n (pronounced "n-eight-n") is an open-source workflow automation platform that connects apps and services to automate repetitive tasks. Think of it like Zapier or Make.com — but with two significant differences: it is self-hostable for free with no task limits, and it gives developers far more flexibility through custom code nodes and a powerful visual canvas.
In 2026, n8n has added serious AI capabilities alongside its core automation engine. You can build workflows that trigger AI agents, process documents with LLMs, and chain AI steps with real app actions — all in one tool. For developers and technical users, it has become the automation platform of choice.
n8n Cloud vs Self-Hosted: Which Should You Use?
n8n Cloud is the managed option. You sign up at n8n.io, and n8n handles the infrastructure. The Starter plan costs $24/month for 2,500 workflow executions. This is the best starting point if you want to evaluate n8n without setting up a server.
Self-hosted n8n is free. You run n8n on your own server, VPS, or locally using Docker. There are no execution limits, no monthly fees, and no restrictions. The trade-off is that you manage updates and uptime yourself. For most developers already comfortable with a VPS or Docker, self-hosting is the obvious choice after you have validated that n8n fits your workflow.
Understanding the Core Concepts
Workflows
A workflow is a sequence of automated steps. Each workflow starts with a trigger (something that starts the automation) and then executes one or more action nodes. Workflows can be simple (2 nodes) or extremely complex (dozens of nodes with branching logic, loops, and error handling).
Nodes
Nodes are the building blocks of every n8n workflow. Each node represents one action or data operation — send an email, query a database, call an API, transform data, make an AI request. n8n has 400+ native integration nodes (Gmail, Slack, Airtable, PostgreSQL, Stripe, and hundreds more) plus an HTTP Request node that connects to anything with an API.
Triggers
Every workflow needs a trigger — the event that starts it running. Common triggers include: a webhook receiving data from another service, a scheduled time (run every day at 9am), a new row in Airtable, a new email matching a filter, or a manual test trigger while you are building.
Building Your First Workflow: A Practical Example
Let us build a simple but genuinely useful automation: when a new form submission arrives, send a Slack notification and save the data to a Google Sheet.
- Add a Webhook trigger node. n8n gives you a URL. Paste this into your form tool (Typeform, Tally, or any form with webhook support) as the destination for new submissions.
- Add a Slack node. Connect your Slack workspace, choose the channel, and write the message template using the form data fields (e.g., "New submission from {{$json.name}}: {{$json.email}}").
- Add a Google Sheets node. Connect your Google account, select your spreadsheet, and map the form fields to the appropriate columns.
- Activate the workflow. Toggle it on, submit a test form, and watch the data flow through in real time in the n8n execution log.
That is the core pattern for almost every n8n workflow: trigger → one or more actions → activate.
Key Nodes Every n8n User Should Know
- HTTP Request — connects to any REST API. If n8n does not have a native node for a service, HTTP Request bridges the gap.
- IF / Switch — conditional logic. Route data down different paths based on field values, enabling powerful branching workflows.
- Code — write JavaScript or Python directly in a node. For data transformations that visual nodes cannot handle, Code gives you complete flexibility.
- Wait — pause a workflow for a set time or until a condition is met. Useful for delayed follow-ups or waiting for an external event.
- AI Agent — connect a Large Language Model and give it access to other n8n nodes as tools. Build AI agents that can take real actions in your apps.
- Merge / Split — combine multiple data streams or split a list into individual items for per-item processing.
Real Automation Examples to Build Today
- Lead notification pipeline: New form submission → enrich with Clearbit → add to CRM → Slack alert to sales rep → send welcome email.
- Daily briefing: Schedule trigger at 8am → fetch top RSS feeds → summarise with OpenAI → send email digest.
- Support ticket routing: New Intercom conversation → classify intent with AI → route to correct team channel in Slack → create Jira ticket.
- Invoice processing: Email attachment received → extract PDF → parse with AI → create invoice record in accounting tool.
- Social monitoring: Monitor mentions → filter by sentiment → create task in Notion for negative mentions → auto-reply to positive ones.
Common Beginner Mistakes to Avoid
Not using the execution log. When a workflow fails, the execution log shows exactly which node failed and what data it received. Always check here first before troubleshooting.
Trying to process a list without Split in Batches. If your trigger returns multiple items (e.g., 50 new spreadsheet rows), you need the Split in Batches node to process each one individually through downstream nodes.
Hardcoding credentials in nodes. Use n8n's Credentials manager (Settings → Credentials) to store API keys and OAuth connections securely. This also makes them reusable across workflows.
Getting Started Right Now
The fastest way to start is n8n Cloud — sign up at n8n.io, start a free trial, and build your first workflow in the same session. Once you have validated that n8n solves a real problem for you, evaluate whether self-hosting makes sense for your volume and technical comfort level. The n8n documentation and community forum are both excellent resources as you build more complex workflows.