n8n: an open-source low-code workflow automation tool that runs the repetitive parts for you

A lot of daily work is the same chain repeating itself: a form arrives, a row gets written to a spreadsheet, a message goes out, the record gets archived. n8n turns that chain into a diagram that runs on its own. It is an open-source, low-code automation platform built on Node.js, where you connect nodes on a visual canvas instead of writing integration code.

Put simply: n8n turns "connect two apps" from a coding task into a drawing task. Every node is either a trigger or an action. Triggers start a run, whether on a schedule, through a webhook, or because something happened inside a connected app. Action nodes do the work: send mail, write to a database, call an API. Draw lines between them and data flows along the lines.

The platform ships with integrations for more than 400 services, including Slack, Google Sheets, Notion and Airtable. When a built-in node cannot express your logic, you can drop JavaScript or Python into a code node instead of switching tools. Workflows are stored as JSON, which is why they can be versioned, exported and shared.

Deployment is flexible: npm, Docker or a binary package. You can run n8n on your own server, which keeps workflow definitions, credentials and execution history inside your infrastructure.

Core features

Open source and self-hosted

The core advantage is that n8n is open source, and individuals and non-commercial use can run it free of charge. For privacy-sensitive work this often matters more than any single feature, because self-hosting keeps flow definitions, credentials and run history on your own machine.

Visual workflow building

You build automations by dragging nodes onto a canvas. No complex programming is required to get a flow running, which is often the deciding difference for operations and business users who do not write code.

More than 400 integrations

Common apps and data sources are covered out of the box: Slack, Google Sheets, Notion, Airtable and many others. The broader the coverage, the less glue code you have to maintain yourself.

Custom code when you need it

Code nodes accept JavaScript or Python, so you can express logic that standard nodes cannot. This sets the ceiling of the tool: an unusual requirement does not force you to abandon the workflow you already built.

Flexible triggers

Schedule triggers, event triggers, webhooks and manual runs can all start the same workflow. One flow can be kicked off by a cron job in the morning and by an inbound HTTP request later the same day.

Data handling

Text, numbers and files can all move through a flow, with transformation, filtering and mapping between nodes. In practice this layer is where most of the real work lives, and where a mature expression system saves the most time.

Collaboration and governance

Teams can share workflows and set permissions, and the platform provides workflow version control plus execution logs. Once a flow reaches production, version history and logs are the precondition for debugging anything.

How to use it

1. Install. Use a global npm install, a Docker container or a binary package to get n8n running on your machine or server.
2. Create a workflow. Sign in to the editor and start a new workflow.
3. Add a trigger. Pick a trigger node such as a schedule, a webhook or an app event, then define when it should fire.
4. Add action nodes. Add the steps you need: send an email, update a database row, call an external API.
5. Configure parameters. Fill in the source, destination and credentials for each node.
6. Connect the nodes. Drag lines from the trigger through each action so data has a path.
7. Test. Save the workflow and run it manually to check that every node returns what you expect.
8. Activate. Once the test run is clean, activate the workflow so it runs automatically in production.
9. Monitor and maintain. Watch the execution log, handle failures, and keep credentials and node versions up to date.

Who it is for

• Developers: assemble automation quickly and cut the amount of repeated integration code they maintain.
• Data analysts: collect, transform and merge data from several sources without building a pipeline from scratch.
• Operations and marketing teams: automate campaign steps, notifications and customer follow-up.
• Corporate IT: build internal automation and standardise how business processes are wired together.
• Individual users: automate personal routines such as scheduling, reminders and file backups.

Things to keep in mind

• Self-hosting means you operate it. Installing is the easy part; upgrades, backups and credential rotation still need an owner.
• The free tier has boundaries. Individuals and non-commercial use can run it free, but commercial terms should be checked against the official licensing documentation.
• 400+ integrations does not mean every operation exists. Whether a specific service supports a specific action still depends on that node's capabilities.
• Complex flows need discipline. Past a few dozen nodes, naming, error handling and logging strategy decide how expensive the flow is to maintain.
• Credentials deserve separate attention. A workflow usually holds access keys for several systems at once, so secret storage becomes a primary security concern on self-hosted installs.

FAQ

What is n8n?

An open-source low-code workflow automation tool built on Node.js. You build flows by connecting nodes on a visual canvas, with support for more than 400 service integrations and custom code.

Do I need to write code?

Not necessarily. Most flows can be assembled by dragging and connecting nodes. When the logic gets unusual, code nodes accept JavaScript or Python.

Can I host it myself?

Yes. n8n can be self-hosted and installed through npm, Docker or a binary package, which keeps your data in your own environment.

Is it free?

Individuals and non-commercial use can run it without paying. Check the official licensing terms for the exact scope, especially for commercial deployments.

Which services can it connect to?

More than 400 integrations, including Slack, Google Sheets, Notion and Airtable, plus generic HTTP request nodes for anything with an API.

How do I debug a failing flow?

Open the execution log for the run, inspect which node returned an error and what payload it received, then compare against the previous version to see which change introduced the problem.