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Duplicate Killer

2 votes, 4.5/5
3.41.0650 (latest version)
Duplicate Killer
Windows XP, Windows Vista, Windows 7, Windows 8, English
Duplicate Killer is an add-in for Microsoft Outlook which is aiming at removing duplicate items. This version can work with the latest version of Windows and Outlook 2013.

Key Features

  • Search and scan: this utility can automatically detect duplicates in Outlook inbox especially thanks to the Quick Wizard. Duplicate Killer also helps to search for them too. It can be Microsoft Exchange and Public folders or other items.
  • Duplicates manager: once found, this tool also enables to organize them that is to say removing them, back them up to a folder or flag them. A merging algorithm ensures an item (e-mails, contacts and tasks) so that it can never be lost.
  • Duplicate settings profile: Duplicate Killer search settings can be saved to create a profile. With this action, the profile will be secured in a location and can be utilized when searching for other duplicates. It can be edited, imported and exported.


  • Duplicate Killer can save time and money.
  • A detailed report about the duplicate search can be obtained.
  • It supports all Microsoft Outlook versions.


  • This is a shareware version.


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Alternative spelling: duplicatekiller_setup-3.41.0650.exe, duplicatekiller_setup.exe