Node.js has a built-in debugger that can make debugging code easier, allowing developers to step through their code line by line, set breakpoints, and examine variables. This enables them to identify and fix errors more efficiently. The debugger provides an interactive environment where developers can inspect the state of their program, making it an essential tool for any developer working with Node.js. By using the built-in debugger, developers can gain a deeper understanding of their code and improve the overall quality of their applications.