n8n – What It Is and How It Works is an open-source workflow automation tool that helps you connect apps, services, and APIs to automate repetitive tasks without heavy coding. It works by allowing users to create workflows using visual nodes, where each node performs a specific action like sending emails, updating spreadsheets, managing CRM data, or triggering webhooks. n8n supports hundreds of integrations and also allows custom automation using JavaScript for advanced control. With its flexible self-hosting option and cloud availability, n8n is widely used for business automation, data synchronization, and process management.