n8n

n8n is a source-available workflow automation platform that gives technical teams the full power of a self-hosted automation engine with native AI agent capabilities built in. Unlike fully proprietary tools, n8n’s code is publicly available and can be run on your own infrastructure — giving you complete control over your data, unlimited executions with no per-operation pricing, and the ability to extend the platform with custom code.

The workflow editor is node-based: each node represents an action or data transformation, connected into a flow that handles everything from simple app-to-app triggers to complex multi-step processes with conditional logic, loops, error branches, and sub-workflows. The built-in Code node lets you write JavaScript or Python directly within a workflow when no dedicated node exists for your need.

AI Agent nodes are a first-class feature: build LLM-powered agents that use tools from across your workflow, maintain conversation memory, make decisions based on structured data, and call external APIs through the same node system as your other automations. The agent can loop until it completes a task, call sub-workflows as tools, and handle complex multi-step reasoning natively.

n8n has 400+ integrations including all major SaaS apps, databases, developer tools, and communication platforms. The community has published thousands of workflow templates covering the most common automation patterns.

n8n Cloud starts at $24/month for the Starter tier. Self-hosting is free and fully functional — the preferred path for teams with strict data residency requirements or cost-sensitive high-volume workloads. Enterprise licenses add support SLAs and SSO.