Doublekiller is described as 'DoubleKiller searches single or multiple directories for duplicate files by comparing any combination of file name, size, modification date and content. Using user-defined masks like *.mp3 or *.dll you can limit the scan to files that interest you or protect important files from' and is a duplicate file finder in the file management category. There are more than 25 alternatives to Doublekiller for a variety of platforms, including Windows, Mac, Linux, Android and iPhone apps. The best Doublekiller alternative is Duplicate Cleaner. It's not free, so if you're looking for a free alternative, you could try AllDup or VisiPics. Other great apps like Doublekiller are FSlint, CloneSpy, Gemini 2 and Auslogics Duplicate File Finder.
Duplicate Files Finder is an application which searches for duplicate files (files which have the same content, but not necessarily the same name) and lets the user remove duplicate files, either by deleting them or by creating links.
