When Should You Use n8n Instead of Writing the Code Yourself?

The decision to use a low-code automation tool like n8n versus writing custom code is often framed as a choice between convenience and control. However, the author argues that the real question is about ownership of failure and system architecture. n8n excels as an integration glue for operational tasks—such as syncing records, sending notifications, or polling APIs—where the logic is peripheral to the core product. Conversely, custom code remains the superior choice for mission-critical business logic, complex transactional consistency, and processes requiring rigorous unit testing. The article suggests a practical test: if a process can be clearly represented as a simple graph of nodes, it is a good candidate for n8n. If the logic requires deep branching, complex state management, or high-throughput performance, it belongs in the application codebase. Ultimately, n8n is a powerful tool for operational visibility, provided it is not used to hide core product complexity.