1)   zsCompare 2.42
Manually or automatically compare files, folders, text files, source code, Word documents, Excel spreadsheets, and pdf files. You can even compare files within zip files. Includes zsDuplicateHunter a powerful duplicate file finder for free!

 2)   zsDuplicateHunter Professional 2.21
zsDuplicateHunter Professional is a powerful way to find and remove duplicate files. You can group files by name, size, checksum, digest as well as three additonal methods. And use seven different methods of deleting to clean up quickly.

 3)   zsDuplicateHunter Standard 2.21
zsDuplicateHunter Standard edition allows you to safely and easily find and remove duplicate files. Step by step instructions help you to eliminate the duplicate files that clutter your hard drive and slow your computer down.