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A Free Duplicate Remover for Outlook 2021 / 2019 / 2016 / 2013 / 2010

Eva Mendis | Modified: February 23, 2023|Outlook, Tips | 5 Minutes Reading

Are you having duplicate items in your mailbox? Do not know how to manage duplicate emails in Outlook? Looking for some solution to remove duplicate items from Outlook? If yes, then you are at the right place. This blog will let you know about a free duplicate remover for Outlook. Just stay with us.

Microsoft Outlook is a widely used email client among business or enterprise users. It let users work in offline mode also which gets updated automatically as the connection is established again. Like any other mailbox, the Outlook mailbox includes all data items such as emails, contacts, calendars, tasks, notes, and journals. Now, having duplicate items in a mailbox is one of the common issues faced by almost every user.

The management of duplicates will become difficult for a user when they are large in number. At that point in time, a user needs to look for some solution to deal with duplicates properly. To make this task convenient for the user, a free duplicate remover for Outlook is suggested in the post.

Why Is It Necessary to Delete Duplicates from Outlook?

If a user is having duplicate emails in Outlook, then it needs to handle as soon as possible. However, duplicate items in Outlook might create lots of issues. For example, it might create confusion for the users among the same emails multiple times. In addition, it occurs storage space also results in storage issues. Microsoft Outlook starts hanging and its performance degrades.

All such problems make it necessary for the user to remove duplicate emails from Outlook. Now, the question is how it can be done smoothly?

A Free Duplicate Remover for Outlook – Just Try It!

SysTools Outlook Duplicate Remover is one of the great tools to deal with duplicate items. It is a smart software to remove duplicate items i.e., emails, contacts, calendars, tasks, notes, and journals from Outlook. A user just needs to add a PST file and the software will automatically detect and remove duplicates in a few simple clicks.

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It is capable to delete duplicates from password-protected PST files also both ANSI and UNICODE. Apart from this, it also allows users to delete duplicates via email fields also. The software is compatible with all versions of Microsoft Outlook and Windows OS.

Advance Features Offered By Free Duplicate Remover for Outlook

There is a number of features provided by the Outlook Duplicate Remover tool that make it more attractive and are described below:

  • Remove Duplicates from PST/OST/BAK Files in Batch: A user is allowed to delete duplicate items from multiple PST/OST/BAK files at once. The Add File(s) and Add Folder options make it easy for the user to overcome duplicates from multiple PST files in a batch.
  • Capable to Delete All Duplicate Items: The software removes all data items like emails, contacts, calendars, tasks, and notes from the Outlook PST file. A user can delete duplicates from selective data items by choosing a particular data item.
  • Find & Remove Duplicate via Email Fields: A user can search for duplicates based on multiple criteria. It allows to locate duplicates via email fields like to, subject, attachment, cc, bcc, body, etc.
  • Two Ways to Delete Duplicates from PST: Free Outlook Duplicate Remover software provides two options to delete duplicates. One is Across Outlook Folders, it will check for duplicates in all folders of PST files and delete them at once. Another option is Within Folders to look for duplicates in each folder separately.
  • Generate Complete Process Report: When the duplicate removal process is completed successfully, an export process report is generated by the software. It includes all details of success count, fails count, source file path, etc., and saves in CSV format at the destination location.
  • Diverse Action to Remove Duplicate Items: It gives different action options to draw out duplicate items from Outlook PST/OST/BAK files like Delete Permanently, Move to Deleted item folder, Move to Folder, Put Flag, and Mark as Expire.

Now, after knowing the tool features, let’s move toward the working steps of the tool.

Detailed Working of the Duplicate Remover For Outlook

1. First download the tool for the above button and install the tool on your machine.

2. Once the user completes the installation process, run the tool.

3. Now, click on the Add File and Add Folder to add the PST file.

4. After this select Within Folder(s) or Across Folder(s).

5. Now, select the destination location to save the duplicate.

6. Choose the Item types such as Email, Calendar, Tasks, Contacts, Journal, and Notes.

7. Now, Choose the Action that you want to perform.

At last click on the Next button to start the process of de-duplication.  

Availability of Free Duplicate Remover for Outlook

Free Version: A user can download the demo version of Outlook Duplicate Remover software and try it for free. As it is a free version of the software so, it has some limitations. It allows the users to export 15 items per folder after removing duplicates from the PST file.

Licensed Version: After being satisfied with working on a free version of Duplicate Remover for Outlook, a user can purchase the full version and have complete access to the tool. It does not impose any export items limitation.

Also Read:

6 Major Causes of Duplicate Emails in Outlook

A Quick Way to Deduplicate Outlook Contacts


Whenever it comes to dealing with duplicate items in Outlook, a user is suggested to try free duplicate Remover for Outlook. It is one of the best solutions to remove duplicate items from Microsoft Outlook. It is a safe and secure application to use without the risk of data loss.