n8n

n8n is a source-available workflow automation tool that lets teams connect apps, APIs, and data without heavy custom code. Using a visual drag‑and‑drop editor, you build workflows from modular nodes to automate tasks, route data, and orchestrate processes across systems. n8n provides hundreds of prebuilt integrations plus a generic HTTP node for any REST API, along with logic, branching, loops, and error handling to create reliable automations. Workflows can be triggered by webhooks, schedules, or app events, and can call sub‑workflows for reuse.

Security features include encrypted credentials, permission controls, and detailed execution logs. n8n runs in the cloud or self‑hosted via Docker, enabling full data control and horizontal scaling with queue mode. Developers can transform data with expressions or custom JavaScript, enable versioning and change tracking, and expose workflows as callable webhooks.