SysTools Outlook Duplicates Remover

Tool to Remove Duplicate Email Items from MS Outlook PST Files & Folders

  • Deduplication of emails, contacts, calendars, journals, tasks, notes
  • Option to remove duplicates within the folder and across the folder
  • Remove duplicates emails from multiple Outlook PST files in batch
  • No File Size Limitation: Supports Both ANSI & UNICODE File Types
  • MS Outlook should be installed and set as the default email client
  • Support All MS Outlook 2013, 2010, 2007, 2003 (32 bit) Versions

List of Key Features in SysTools Outlook Duplicate Remover

batch data deduplication

Batch Data Deduplication

The Outlook Duplicates Remover software allows you to remove 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 duplicated from each PST file as well as the folders in it.


remove duplicates item

Remove Duplicate Emails in Outlook

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


option to remove duplicates

Options to Remove Duplicates

The software allows you to remove duplicates from multiple PST files in two ways.

  • Remove duplicates within folder
  • Remove duplicates across folder

option to remove duplicates

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

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 duplicates from the folders, it will show you the status as complete with the number of items processed.


create new store folder

Create New Store Folder

While removing duplicates emails & other items from the PST file(s), you will be asked to choose a desirable 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.


Outlook Duplicate Remover Tool Screenshots

outlook duplicates remover tool
Step 1: Outlook Duplicates Remover
add outlook pst files
Step 2: Add PST Files & Folder
Duplicate Option(s)
Step 3: Duplicate Option(s)
remove duplicate
Step 4: Remove Duplicates

Watch Live Video of Outlook Duplicates Remove

Download Outlook Duplicate Remover Software
Outlook duplicate remover Box

Size: 1.9 MB Version: 1.0

Trial Limitations

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

Download Outlook Duplicate Remover

Installation Uninstallation EULA

System Specifications

System Specifications
  • Hard Disk Space: 10 MB of free hard disk space

Application Pre-Requisites

  • Microsoft Outlook(32-bit) should be installed and configured for a valid or dummy POP3 profile (Not Configured for Exchange).
  • If you are using Window 8.1/8/7 or Vista, then please launch the tool as "Run as Administrator".

Supported Editions

  • Microsoft Windows – 2000, 2003, 2008, XP, Vista, or Windows 7/8/8.1, 2008/2012 (32-bit & 64-bit)
  • MS Outlook – Outlook 2000, 2003, 2007, 2010 (32 bit), 2013 (32 bit)
Frequently Asked Question
How can I remove multiple numbers of duplicate emails?

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

Do I need to install Outlook on my machine before using this tool?

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.

Can I remove duplicates from multiple PST files at a time?

Yes, Outlook Duplicates Remover software has an option to add multiple PST files at once for duplicates removal. You can also add an entire folder consisting of multiple PSTs for remove duplicate emails in outlook.

Does the software removes Duplicate Emails and Calendars from Outlook (PST) files?

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

Are duplicates checked for in a single folder or across multiple folders?

As a matter of fact, 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.

Does software remove duplicates from a specific size of PST file only?

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.

Are any changes made to the source PST file after processing it?

No, 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.

What Clients Say

Thanks for the developers who developed Outlook Duplicates Remover like tool so that the Outlook management become much easier and systematic. The format of creating a new PST file with the duplicate data removed from PST folder is a much appreciable quality that makes user confidence much higher.

— Thomas Dikrose, Sweden

The moment we started dealing with duplication issue of data in our Outlook account, we thought of getting rid of it. After thorough investigation it was found out that, assigning Rules was the reason behind it. Thanks to Remove Duplicate Emails in Outlook, we were able to remove existing duplicates without any efforts made.

— Dan Torreto, Tokyo
Outlook Duplicate Remover Order Now

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


Features FREE 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 8 & All Other Previous Windows Version Supported
Export Duplicates Free Outlook PST Files 15 Items / Folder
Cost FREE $29
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