Doxygen is a documentation generator widely used in software development. It helps programmers create comprehensive documentation for their code by extracting comments and annotations directly from the source files. This tool supports various programming languages, including C, C++, Java, and Python, making it versatile for different projects. By using Doxygen, developers can produce documentation in multiple formats, such as HTML, LaTeX, and PDF. This allows teams to maintain clear and organized documentation that is easily accessible, improving collaboration and understanding of the codebase. Overall, Doxygen enhances code readability and facilitates better software maintenance.