Debugging is the process of identifying and fixing errors or bugs in computer programs. When software doesn't work as intended, developers use debugging techniques to trace the source of the problem. This can involve reviewing code, using special tools, or running tests to see where things go wrong. The goal of debugging is to ensure that the program runs smoothly and meets its requirements. It is an essential part of software development, as it helps improve the quality and reliability of applications. Effective debugging can save time and resources, leading to better user experiences with the software.