n8n is an open-source workflow automation platform with a powerful visual node editor and support for custom JavaScript that connects 400+ apps and services into sophisticated automated processes. Unlike proprietary automation tools, n8n can be self-hosted for complete data sovereignty, supports complex branching logic and error handling, and allows custom code within any workflow step for unlimited flexibility. Developers and technical teams at thousands of companies — from startups to enterprises — use n8n to automate data pipelines, synchronize systems, and build internal tools that would require significant engineering effort to build from scratch.