duplicate

This handles duplicate values in the list

Checks invalid, duplicate email addresses in a mailing list

Check your drives for annoying duplicate files.

Nodouble is a simple duplicate file finder.

Remove duplicate e-mail messages in Microsoft Outlook folders.

Is our next generation duplicate finder and disk tidiness utility.

Super DeDupe is a software that allows you to find and remove duplicate files.

CloneSpy is a Free Duplicate File CleanUp Tool for Windows.

Checks invalid, duplicate email addresses in a mailing list.

Find duplicate files, even with different names.