CloneSpy

CloneSpy: A free and reliable duplicate file cleaner

CloneSpy is a free piece of software that enables you to easily remove duplicate files from your computer and save valuable storage space. The application will detect duplicate files based on their contents, and not by name, locate or other such factors.

Nevertheless, you can also use the app to detect files which don’t have identical contents but have the same name, as well as zero length files.

The set of search filters offered by CloneSpy make it possible for the program to detect files that are duplicates, are duplicates and also have the same name, only have the same name, have roughly the same size and same name, or are zero bytes long (empty files).

On top of that, the app enables you to build checksum files from files found on hard drives, CDs and other storage options.