Disk Cleaner is a free and open source application to quickly and easily clean your hard disk from temporary files in the system temporary folder, the Internet Explorer Cache and Cookies folder, and the Recycle Bin. It also cleans up recent data in the installed application like Adobe Reader, IE, Office, Firefox etc. Disk Cleaner is very easy to use and all you need is to select the items which you want to clean up and then click clean button.
Despite the ease of use, the extendibility by plug-ins, which in fact are just simple text files, make that Disk Cleaner can also be used by power users to clean specific items. You can create plugins using any text editor like textpad or notepad.
Disk Cleaner is a handy tool to clean up temporary files and also free up hard disk space. Disk Cleaner is also entirely self-contained: no other (large) DLLs are necessary to run the application, so it can even be run from a USB drive without trouble.