Outlook Duplicate Remover software

Progressive utility to safely erase duplicate items from Outlook data files. Automatedly delete duplicates of Outlook data items from PST and OST files.

  • Delete duplicate of any Outlook item - Email, Contact, Calendar, Tasks, Notes, & Journals.
  • Remove duplicates from both OST & PST Outlook files.
  • Erase within the folder or across every chosen folder.
  • Special option to search and delete Email Duplicates.
Outlook Duplicate Remover Tool

Outlook Duplicate Remover software - Smart Features

Outlook Duplicate Remover software

Instant Fast Software Delivery via Email

30 days return policy

  • Delete duplicate Outlook items from data files PST and OST with an easy process.
  • Erase duplicate items from single and multiple Outlook data files at a time.
  • Open data files in the software and view Outlook items directly from them.
  • Select folders and de-duplicate Outlook items from selected folders only.
  • Choose Outlook items and delete duplicates of only selected Outlook items- (Mail, Contacts, Calendars, Tasks, Notes and Journals).
  • Conveniently delete Outlook items within the folders or across every selective folder.
  • Split the resulting PST files by different size ranges 1GB, 2GB, 3GB,……. 25 GB.
  • Search and delete emails based on their elements TO, From, Subject, CC, Body and attachments.
  • De-duplicate emails of selected dates from Outlook files with mail filtering by date range option.
  • Choose a location from your drive to save the resulting PST files (without duplicates).
  • Complete Outlook item de-duplication task without losing original data.
  • De-duplicate items from both ANSI & Unicode files of all MS Outlook versions (up to 2021)
  • Sleek and reliable graphical interface for easy execution of Outlook item de-duplication.
  • Software is accessible on computers running any version of Windows O/S, including Windows 11.
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Demo Edition:- Remove duplicates of 25 items from each chosen folder of PST/OST files.

Outlook Duplicate Remover Software - Features with Details

Remove Duplicate Items from Outlook Data files

The solution designed to clean up redundant copies of Outlook items from PST and OST files. With Outlook Duplicate Remover software, get the ability to delete duplicates of emails, contact, calendar, and other items.

Safely erase duplicate items within the folder or across all folders of an Outlook data file. Duplicate Outlook items delete swiftly with advanced filtering and other smart options.

Working process >> How to Remove Outlook Items Duplicates?

remove duplicats of outlook items from PST/OST
delete duplicates within folder or across all folders

Erase Duplicates Within or Across all folders

Clean up the duplicate Outlook items from the inner folders of Outlook PST and OST files with 2 modes. Safely de-duplicate Outlook items with options: -

  • Search and Delete Duplicates within the folder:- Find duplicates of the items inside the folder and delete them. (Outlook finds copies of items within a folder)
  • Search and Delete Duplicates across all folders: - Find and delete copies of Outlook items in all selected folders.
adding outlook files for item de-duplication

Add data files with 2 distinct options

De-duplicate Outlook items from single as well as multiple data files at one time. Get separate option for doing each task: -

  • Add Single PST or OST:- Load one data file at a time to remove duplicate from a single file.
  • Add Multiple PST or OST: - Option for adding files in bulk and removing duplicates from multiple files at once.
open data files and read outlook items

Directly Open & Read Outlook files

Preview panel is also available within the software which enables users to read all the internal data of Outlook data files. On this panel a user can easily view every folder and items from the Outlook file. This panel will assist users in checking the duplicate items and for choosing only the folders containing duplicates.

delete duplicates from selected folders only

De-duplicate Choosen folder's items

The software allows users to select only those folders that contain duplicate items. Users just need to select their required folders from the data files from the tree view/folder hierarchy. Selecting relevant folders enables users to de-duplicate Outlook items from specific folders only.

selective Outlook items delete duplicates

Erase Selective Outlook item's duplicates

Find and delete duplicates of only specific types of items from Outlook PST or OST files. Choose Outlook items from options Mail, Contacts, Calendars, Tasks, Notes and Journal and easily remove duplicates of selected items.

erase outlook email duplicates

Smart Email Duplicates Search options

Email attribute selection option available to remove email duplicates accurately. Easily select email elements - To, From, Subject, CC, Body and Attachments. Find each email duplicate based on the selected email component from the Outlook data file.

split PST files by size

Splitting Resultant PST files by size

The software finds duplicates from the user's PST file and saves the unique items in the new PST file with the criteria specified by the user. These resulting files can be broken into smaller parts with the split option. Users can split PST files according to different size ranges (1 GB, 2 GB, 3 GB, 4 GB, 5 GB, to 25 GB).

email filter with date range

Email Filtering for De-Duplication

Delete duplicate Outlook emails from PST/OST files of selected dates. Use the mail filtering option and apply this date selection to remove email duplicates. Select a start and end date and delete emails of the specified date range.

saving location self-selection

Manual Saving Location Selection

The software finds duplicates of Outlook items from users' PST and OST files. After finding duplicates it moves the unique items to the new PST file. Users can manually choose a path from their drive where they can save these newly created PST files.

no data loss or errors while deleting duplicates

Erase Duplicates without Errors

The software performs de-duplication of Outlook items with their selected criteria. It will complete each task with accuracy without misplacing any information. All the duplicates will be erased without modifying the source files.

support of all ms outlook editions

Both ANSI & Unicode File Support

Both ANSI and Unicode Outlook data files are working in this software to remove duplicate Outlook items. Use this tool to de-duplicate Outlook items from PST/OST files of any size of any version of MS Outlook including the latest 2021.

software with clear easily operable graphical interface

User-Friendly Software Interface

Users may easily complete the job of removing duplicate Outlook items with the program even if they have no prior experience. This software's graphical user interface is straightforward and user-friendly, making it suitable for a wide range of users to delete unwanted outlook items from PST/OST.

working on computer running on Windows O/S

Compatible on Windows O/S

Designed for deleting duplicate Outlook items to operate on Windows-installed computers. Users will use it on a Windows machine and easily erase the duplicates from Outlook files. Use on Windows 11, 10, 8.1, 8, 7, XP, Vista, and previous versions without any issues.

Free Outlook Duplicate remover

Remove Outlook Duplicates free

Test the software before purchasing with a free demo version. All the features and functionalities of the software users can check through this demo version. It will allow users to remove duplicates of up to 25 items from each folder of PST/OST file.

Software Comparison

Software Features Trial Version Full Version
Remove Duplicates of Outlook Items
Adding single as well as multiple files
Direct opening Outlook PST/OST file
Delete within folder
Remove items across all chosen folders
De-Duplicate Outlook items from selective folders
Removing duplicates of Specific items
Email Element selection for serach/deletion
Remove Unlimited Duplicates Remove duplicates of only 25 items from each chosen folder of data file
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Software Specification

Trial Limitations

De-Duplicate 25 items from each selected folder of Outlook PST and OST files free of cost

Software Info


Supported Files

Outlook PST and OST files (Both ANSI and Unicode)

Personal, Corporate, Technician

Language Supported
English, German, Italian, French, Spanish

System Requirements

Intel® Pentium Class

Operating System

Hard Disk Space
50 MB of free hard disk space

Minimum 512 MB is required

Software Delivery


Delivery by E-mail

Supported Windows OS

Works with all windows O/S editions 11, 10, 8.1, 8, 7, and below editions

Frequently Asked Questions (FAQ)

  • Download and run this eSoftTools Outlook Duplicate Remover software.
  • Press the Select OST or PST file button software first screen.
  • Choose a file adding mode- Add Single File or Add Multiple files.
  • Import the needed Outlook files and hit the Start Scanning button.
  • Load the folders and items from imported OST/PST files.
  • Make selection of needed folders and click the Remove Duplicates button.
  • Apply required settings for Outlook items de-duplication like- item type selection, select email element, mail filter, across folder or within folder.
  • Choose a saving location and click on the Remove Duplicates button.

Outlook Duplicate Remover software

Working process, for Outlook Items De-Duplication: - How to Remove Duplicate Items from Outlook PST & OST files?.

Yes, this software can remove duplicates from a large number of Outlook files at the same time. Any user can remove duplicates from single and multiple files at once.

Yes, it supports opening OST and PST files of Outlook directly and provides a clear preview of every item available inside Outlook files.

This software provides 2 different options to remove duplicates from folders inside Outlook files: -

  • Search & remove within the folder: - Find duplicate items from the folder and delete them.
  • Search & Remove across all folders: - Find identical items from all selected folders of data files to delete.
This feature is useful for users who want to remove duplicates of specific types of Outlook items. Users can easily select Outlook items from options Mail, Contacts, Calendars, Tasks, Notes and Journal and delete duplicates of only the selected items.
The software does not make any changes to the original files. It simply finds items whose copies are available in the data files and moves those items to a new PST file.
The software provides this additional function to delete copies of Outlook emails. Users can choose email elements To, Cc, Subject, From, Body, and Attachments. With this selection, the software will search for duplicates by the selected email information.

The mail filtering option enables users to perform email de-duplication only from emails of only selected date range.

Not a single modification will be made to the source files by the software. It simply finds duplicate items and saves those items in a new PST file without duplicates.
Yes, users can remove duplicate items from both ANSI and Unicode Outlook data files that are obtained from any MS Outlook version (2021, 2019, 2016, 2013, 2010, 2007, 2003, 2000 and older versions).
The software will efficiently run on computers with any Windows O/S version (from old to new) including Windows 11, 10, 8.1, 8, 7, XP, Vista, and older.
With the demo version, users can try out all the functions and features of the software without spending money. This demo enables users to erase duplicate of up to 25 items from each folder of Outlook data file for free.

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