The Eclipse Debugger is a powerful tool integrated into the Eclipse IDE, designed to help developers identify and fix issues in their code. It allows users to set breakpoints, step through code line by line, and inspect variables at runtime. This interactive debugging process makes it easier to understand how the program executes and where errors may occur. With the Eclipse Debugger, developers can also evaluate expressions and modify variable values on the fly, enhancing their ability to test different scenarios. This functionality is essential for improving code quality and ensuring that applications run smoothly before deployment.