n8n

What is n8n?

n8n is an open-source workflow automation platform that lets you connect any app, API or service via a visual node editor. Unlike Zapier or Make, n8n can run on your own servers (self-hosted), giving you full control over your data and flows. Its node architecture is extremely flexible: you can run JavaScript or Python inside the flow itself, turn it into an autonomous AI agent or build automations that would be impossible with other tools.

Founded in 2019, n8n has earned a loyal technical user base that loves the combination of a visual interface and the ability to write code when needed. In 2024, with the AI agent features, it has become one of the most powerful tools in the AI automation ecosystem.

Who is n8n for?

• Developers and technical teams who want flexible automation with the ability to write code.
• Companies with data privacy requirements that can’t send data to third-party cloud services.
• Automation consultants building solutions for clients who need maximum control.
• Technical startups that want a robust integration system without paying expensive licenses.
• AI agent builders combining LLMs with external tools and APIs.

Core features

1. Visual node editor

n8n’s canvas shows flows as a graph of connected nodes. Each node has a function: trigger, action, transformation, condition or code. Data flows between nodes as JSON objects that you can inspect, modify and transform at every step. The interface is more technical than Zapier but much more powerful for complex flows.

2. Code node (JavaScript and Python)

The Code node is n8n’s superpower: you can write JavaScript or Python to transform data in any way, call APIs, process complex arrays or implement business logic that doesn’t fit a standard node. No need to leave the flow or set up Lambda functions or Cloud Functions separately.

3. Native AI agents

n8n has native nodes to build AI agents: the AI Agent node can connect to OpenAI, Anthropic or local models (Ollama) and autonomously decide which tools to use to complete a task. You can give it access to Google Calendar, email, web search, databases and any API as “tools”. It’s one of the best no-code platforms for AI agents on the market.

4. Full self-hosting

n8n can be installed on any server, VPS, Kubernetes or even locally with Docker. Your flows and data never leave your infrastructure. For companies with sensitive data (medical, financial, legal), this is a critical differentiator that Zapier or Make can’t offer.

5. 400+ native integrations

Google Workspace, GitHub, Slack, PostgreSQL, MySQL, MongoDB, Redis, OpenAI, AWS, Stripe, Airtable, Notion, HubSpot, Shopify, Telegram and many more. For apps without native integration, the HTTP Request and GraphQL nodes connect any API. n8n can also run SSH commands on remote servers.

Real-world use cases

AI agent for customer support

The flow: new email in support → the AI Agent node analyzes the email → decides whether to reply automatically (FAQs), escalate to the team (complaints), or create a Jira ticket (bug reports). For FAQs, it searches the knowledge base, drafts the answer with GPT-4 and sends it. The team only handles cases AI can’t resolve.

ETL data pipeline

Extract data from an API, clean it with JavaScript code, transform it to the required structure and load it into PostgreSQL. n8n can replace simple ETL pipelines that previously required Python scripts or tools like Airbyte for many use cases.

Monitoring and alerting

A cron job checks the status of your servers or the availability of an external service every 5 minutes. If it detects an issue, it runs a diagnosis, generates a report with GPT-4 on possible causes and notifies the devops team in PagerDuty and Slack with all relevant info.

AI-driven content automation

Every morning: n8n aggregates trends from Twitter/X, Hacker News and Google Trends for your sector. The AI Agent node picks the 5 most relevant topics. For each topic, it generates a LinkedIn post with Claude, a Twitter thread with GPT-4 and an article brief for the editorial team.

Pricing and plans

n8n vs. Make vs. Zapier

Pros and cons

Frequently asked questions about n8n

Do I need to code to use n8n?

For basic flows, no. The visual interface covers most use cases without writing a line of code. For advanced flows with complex transformations or specific business logic, the Code node needs basic JavaScript or Python. n8n is more accessible than building integrations from scratch, but more technical than Zapier.

Can I migrate my flows from Zapier or Make to n8n?

There’s no official automated migration tool, but most flows can be rebuilt in 1-2 hours in n8n once you know the platform. The community has public templates for the most common flows that speed up migration.

What happens if n8n has an error and the flow fails?

n8n has an “Error Trigger” node that catches any failure in the flow. You can configure it to send a notification with error details, save the record to a database to retry manually or run alternative recovery logic. In self-hosted, you also have full access to server logs.

Can n8n run local AI models?

Yes. n8n has native integration with Ollama, which lets you run models like Llama 3, Mistral or Qwen completely locally. If your n8n is self-hosted on a GPU server, you can build AI flows without sending data to OpenAI or Anthropic. Ideal for sensitive data.

Related reads on NodoAI

• Make · the visual cloud alternative.
• Zapier AI · the simpler cloud automation.
• Open-source models 2026 · run AI locally with n8n.
• Make vs n8n 2026