Outlook Duplicate Remover





SysTools Outlook Duplicate Remover

SysTools Outlook Duplicate Remover is an advanced software to deal with duplicates in Outlook. It is capable to remove duplicate emails, contacts, calendars, etc., from Outlook PST file. It also allows provides an option to delete duplicates within the folder or across the folders of PST file.

(Average Rating 4.5 Based on 84 Reviews)
  • Deduplication of emails, contacts, calendars, journals, tasks, notes
  • Options to delete duplicates within the folder and across the folder
  • Locate & clean up duplicates via email fields i.e., subject, to, body, bcc, etc.
  • Remove duplicate emails from multiple Outlook PST files in batch
  • Capable to delete duplicates from Password Protected PST file
  • Easy to filter out redundant mail items in Microsoft Outlook.
  • No File Size Limitation: Supports Both ANSI & UNICODE File Types
  • Make report for unique & deleted duplicate items in .csv extension.
  • MS Outlook should be installed and set as the default email client
  • Tool Support MS Outlook 2019 (32 / 64 bit) & all below versions
  • Outlook Duplicate Item Remover supports Windows 10 (32-bit & 64-bit)

Free Live Demo - SysTools Outlook Duplicate Remover Fully Secured Download Version

Awards & Reviews of SysTools Outlook Duplicate Remover

An Advance Outlook Duplicate Remover for Your Ease

SysTools Outlook Duplicate Emails Remover Software

A Single Interface Application to Delete Duplicates from Outlook

Consequences of Duplicates in Outlook Mailbox

There are several reasons that make users remove duplicate items from Outlook. All of them are listed below:

  • Outlook Performance Degrades
  • Outlook Become Slower
  • Lower Productivity
  • Unnecessary Storage Space Issue

What All Advance Features Are Offered by SysTools Outlook Duplicate Remover Software?

  • Remove duplicates password protected PST file
  • Enhance performance of Microsoft Outlook
  • Delete all redundant items from MS Outlook mailbox
  • Easy, simple, and single-interface application
  • Overcome storage space or PST file size issue
  • Clean up duplicates from both ANSI & UNICODE PST


Locate & Delete Duplicates via Email Fields

There can be several criteria depending on which you can search and remove duplicates emails in PST file. Outlook Duplicate Item Remover software provides one Select Email Fields option. It will let you choose the attributes based on which duplicates need to be find out. There are multiple email fields supported by tool i.e.,

  • Subject
  • To
  • Cc
  • Body
  • From
  • Bcc
  • Attachments
  • Internet Message ID
  • Transport Message Header

recover Multiple NDF files

Two Ways to Delete Duplicates in Outlook

  • Remove Duplicates from Single Folder: If you want to find and clean up duplicate emails from same folder, check this option. Outlook Duplicate Remover will analyze each folder separately and remove all located duplicates. This option is useful when you do not want to delete duplicates across all folders of Outlook PST file.
  • Delete Duplicates Across Outlook Folders: If you think duplicates are distributed into multiple folders of PST file, go for the Across Folder(s) option. The software will analyze all PST file folders and eliminate duplicates from them. This option works best in the case where you need to remove duplicates from all folders of Outlook PST at once.

List of Key Features in SysTools Outlook Duplicate Remover

Handy Utility to Delete Duplicates from MS Outlook 2019 / 2016 / 2013 / 2010/ 2007/ 2003


Batch Data Deduplication

The Outlook Duplicates Remover software allows you to eliminate the duplicates from multiple MS Outlook PST files at once. You can add a folder having multiple PST files in it and software will remove duplicates from each PST file as well as the folders in it.


Remove Duplicate Emails in Outlook

It is possible to cleanup the duplicates from all items within Outlook PST file. You can delete the duplicate items from emails, contacts, calendars, tasks, notes, journals. If required, you can check or uncheck the items for selective data deduplication.


Lists Files with Attributes

The software allows you to add multiple PST files at once. You can see all the listed PST files on the software interface along with its attributes like: File Name, File path, status, duplicates found and the name of item.


Show Deduplication Status

Once you add the PST files for data deduplication, it will show you the current status of each file. Now once the software starts removing duplicate items from Outlook folders, it will show you the status as complete with the number of items processed.


Create New Store Folder

While removing duplicates emails & other items from the PST file(s), you will be asked to choose a desired location. You can save the file at any desirable location and save the PST file. Also, if required; you can make a new folder to save the output files in it.


Supports Outlook 2019 & Below Version

Outlook Duplicate items remover support to the latest Outlook version. The tool clean up duplicate items from Microsoft Outlook 2019, 2016, 2013, 2010, 2007, 2003. You can upload PST file of any Outlook version, the software will remove duplicate from all of them in few clicks.


Export Duplicate Free PST File in CSV

When duplicate item removal process of Outlook completed successfully, a final report is generated by the tool. This report contain all details like source path, destination path, duplicate count, and item count. It will get auto-saved at selected destination location in CSV format. You can check the report it for any details regarding the process.


Generate Duplicate Items Report

After cleaning up duplicates from Outlook PST file, a report containing all details of duplicates is generated by the tool. This report stores information like file name, folder name, subject, and senders address. All this information is with respect to the duplicates removed by Outlook Duplicate Remover. The report will get auto-saved on the selected destination location in CSV format. You can use it for details whenever required.

Outlook Duplicate Remover Software Specifications
Download Outlook Duplicate Email Remover Software

Software Download

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Size : 6.3 MB

Version : 3.0

MD5 : be906678ea2b3c43f3a2dab253b1517f

Trial Limitations

Trial version of Outlook Duplicate Remover software is capable to remove duplicates from 15 items per folder.

System Specifications

Hard Disk Space
100 MB of free hard disk space required

2 GB

1GHz processor (2.4 GHz is recommended)

Microsoft Outlook

Outlook 2000, 2003, 2007, 2010, 2013, 2016, 2019 (32 / 64 bit Versions)

Operating System

10, 8.1, 8, 7 & All Below Versions

Product Guides

Software Guide Installation Uninstallation EULA


Microsoft Outlook(32-bit or 64-bit) should be installed and configured for a valid or dummy POP3 profile (Not Configured for Exchange).

If you are using Window 10/8.1/8/7 or Vista, then please launch the tool as "Run as Administrator".


Electronic Delivery


Get an Overview of Outlook Duplicate Remover Features - DEMO and Licensed Version

Features DEMO Version FULL Version
Add Outlook Files & Folder
Preview List of PST Files
Select Categories (Emails, Calendars, Contacts etc.)
Remove duplicates within the Folder(s)
Remove duplicates across the Folder(s)
Windows 10, 8 & All Other Previous Windows Version Supported
Export Duplicates Free Outlook PST File 15 Items / Folder
Cost FREE $29

Frequently Asked Questions

Listed Commonly Asked Questions and Answers

How do I get rid of duplicate emails in Outlook?

Outlook Duplicate Remover Preview

Step by Step Guide to Remove Outlook Duplicates:

  1. Free Download and Run Outlook Duplicate Remover
  2. Click on "Add File(s) or "Add Folder" to open PST file
  3. Select Category to Remove Duplicate Emails, Contacts, Calendars, Journals, Tasks and Notes
  4. 2 option to delete duplicate items: Within and Across Folder
  5. Browse Location to Save duplicate free PST file
  6. Click on Remove Duplicate button

SysTools Outlook Duplicate Remover is a very efficient and reliable tool which is capable of removing 'n' number of duplicate emails from a respective Outlook mail profile.

Yes, Outlook should be installed on your performing machine and it should also be configured any of the two profile types; POP3 or dummy. However, the version of Outlook (32-bit) could be any.

Yes, with the help of Add File(s) or Add Folder option you can upload a complete containing multiple PST files at once to the software. This way you can remove duplicates from multiple PSt files at once.

Yes, the tool removes duplicate emails from Outlook, as well as it eliminates calendars, contacts, journals, tasks and notes.

As a matter of fact, Outlook Duplicate Remover software checks for duplicates in both ways; within a folder and across folders for detecting all types of duplicate items such as; emails, contacts, calendars, etc.

No, there is no such file size related limitation within software. You can remove duplicates emails in Outlook from any size of PST file successfully.

No, Outlook Duplicate Remover software is built with advance algorithms that ensure not to modify source PST file. It rather creates a new PST file at a destination location of your choice with no duplicates.
Yes, the demo version of Outlook PST duplicate tool eliminates only 15 items per folder. If you want to delete more than 15 items, you have to purchase SysTools Outlook Duplicate Remover Tool.
Yes, Outlook duplicate calendar remover eliminates duplicate calendar items of MS Outlook version 2016,2013, 2010, and 2007.
There is no such file limitation for deleting duplicate items from PST files.
Yes, Outlook Duplicate contacts remover tool is capable to clean up duplicate items from Microsoft Outlook 2016 as well as 2013, 2010, 2007, 2003.

What Customers Are Saying

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