Debugging is an essential skill in programming, and JavaScript is no exception. This chapter will explore various debugging techniques in JavaScript, focusing on browser-based debugging tools. We will look at how to use the browser’s developer tools (DevTools) for debugging, inspect variables, trace errors, and use various debugging methods to streamline development. We will also touch on modern debugging practices that help you write cleaner and more efficient code. By the end of this chapter, you should feel confident debugging JavaScript in the browser and using these tools to solve common issues.