Disk Janitor will free up disk space by removing unneeded files created by apps and your system. Disk Janitor scans deep down your hard drive to locate caches, logs and cookies. Apps create large logs and caches, with some never being used but still eating disk space. Browsing the web creates tons of caches, cookies, and temporary images. Every file downloaded by browsers and mail stays in default folders. Clear out unnecessary garbage with Disk Janitor.