CCleaner is a utility platform designed for Windows, macOS, and Android operating systems. Developed by Piriform, it serves the purpose of cleaning and optimizing the computer's operating system and applications. The platform achieves this by removing temporary files, unused files, and other unnecessary data, potentially leading to the freeing up of storage space and improvements in system performance. In addition to its cleaning functions, CCleaner includes features that allow users to manage and disable startup programs, uninstall applications, and analyze disk space usage.