Outlook PST Merge Tool

Microsoft PST File Combiner to Merge Multiple PST Files Without Duplicates

  • Dual option – Merge PST Files and Join PST Files with All Items
  • Combine Archive, Password-Protected, Active and Network Outlook files
  • Removes Duplicates from Emails, Calendar, Task, Contacts, Notes, etc.
  • Search File Option to Search for a Specific Outlook PST Data File
  • Megre or Join added Outlook data files into a single folder
  • Tool Combine two PST Files in New PST, Existing or Outlook Profile
  • PST Combiner Provides Option for Only Selected Folders to Save Time
  • The tool is capable to function without Admin privileges
  • PST File Merger Software Mainatins Folder Hierarachy while Combining
  • Outlook PST Merger Utility Supports Windows 11 and MS Outlook 2019
*Download Microsoft PST Merge Tool Free Version for Evaluation and Provides Combining of Limited Data Only

Why Should Choose SYSDaddy PST Merge Tool?

From time to time, users need to merge multiple Outlook PST files into a single one. You must be wondering how to combine archive files in Outlook. These files can be PST archives or password-protected from different Outlook accounts. Outlook tools fall short-handed to complete this task for several PST files. It becomes a tiring task if you have to complete it over again and again. Hence, to tackle with this problem, SYSDaddy PST file merge software is the best choice to merge PST files without duplicates. It is easy to use, reliable and capable to combine 2 PST files as well as combine multiple PST files into one. The software maintains the folder hierarchy and data integrity for all Outlook data files. So the user should not worry about any changes in the PST file. With this tool, merge both Unicode and ANSI PST files into a single UNICODE file. It does not necessitate the installation of Outlook on the system to merge Outlook Archive files into a new one. With this utility the user will be able to merge Archive files in Outlook. Moreover, this PST combiner tool supports all the versions of Windows OS i.e 11, 10, 8, 7 and all earlier versions.

Notable Features of Outlook PST File Merge Tool

Merge PST Files

Merge PST Files Together

The best Microsoft PST merge tool provides two option for managing Outlook data files : With the "Join" option helps you in combining the PST fils by creating a fresh folder. On the other hand, "Merge" option helps to merge similar name folders into a single one. Moreover, the PST merge utility has a simple graphical interface so that even non-techy users can perform PST merging tasks without any external assistance. This utility provides various options to combine Outlook PST into:

  • New PST
  • Existing PST
  • Outlook Profile
Combine Outlook Archives

Combine Archive & Orphan PST Files

If users have some orphan PST files then it becomes problematic to combine two PST files. But the best PST Merge tool will make the merging of orphan and active PST files without facing any trouble. In addition, the PST file combiner software is capable to combine Outlook archive files in a single file. Regardless of the Outlook version, it support merging PST files from Outlook 2019, 2016, 2013, 2010 andd other versions. So, when the users archive the PST to be on secure side. If you wants to use the PST file merge tool to archive files into single outlook file because of insufficient or many other storage wtihout hampering the data information.

Combine Password Protected File

Combine Password Protected PST Files

Users find it even more difficult to combine password-protected Outlook PST files. But using SYSDaddy PST file merge tool, any user can combine 2 PST files which are password-protected even without entering a password. The software allows combining of PST files without implementing any restrictions. Also, this PST merge utility easily combine multiple Network PST files into a single. User can fetch Outlook files stored on a network such as a server.

Combine Selective Folder

Merge Selective Folder

Users don't need to worry about the size of the PST file as there is no size limit associated with the best PST merge tool. Users can choose the folders accordingly to combine them. So users don't have to merge all of the folders and waste their time. Just check the boxes of the folders and the software will only combine the selected one. Along with this, it is capable enough to maintain folder hierarchy & data integrity without any PST file data manipulation.

Remove Duplicates

Option to Remove Duplicates

The software allows its users to merge PST files without duplicates. User has complete authority to combine or remove the duplicate items from Mail, Contacts, Calendar, Task, Notes, and Journals just by clicking on Skip Duplicate Option. This is the best feature of this software that makes it more powerful to other tools for merging Outlook PST files into a single one. Along with this, it provides option to split PST file before starting the combining process.

Windows and Outlook Support

Compatible with Windows & Outlook Versions

SYSDaddy Microsoft PST Merge Tool is compatible with all versions of Windows including Windows 7, Windows 8, Windows 10 & Windows 11. It extends supports all MS Outlook editions to combine two PST or merge multiple PST files in Outlook 2019, 2016, 2013, 2010 and others. So, no compatibility issues will arise with this PST file merge software and you can smoothly combine archive PST files in Outlook.

SYSDaddy Best PST Merge Software – Working Steps
  • Step 1
    Launch PST File Merge Tool

    Add PST File or Folder You Want to Combine

  • Step 2
    Combine Outlook PST Files

    Choose Join or Merge PST in New, Existing PST or Outlook Profile

  • Step 3
    Merge Successfully

    Click Next to Merge PST files into One.

PST Merge Tool
PST File Merge Tool
Combine PST Files
Combine Files in Outlook
Microsoft PST Combiner Software Specifications
Download Demo Version of Outlook PST File Merge Tool

PST Merge Software Download

Size : 27.4 MB

Version : 6.0

PST Merge Utility Demo Limitations

The Free Version of the PST Merge Freeware is to Combine First 15 Items of Each Folder.

System Specifications

Hard Disk Space
100 MB free hard disk space


Intel® Core™ 2 Duo CPU E4600 @ 2.40GHz


  • Microsoft .NET framework 4.5 or above must be installed.
  • If you are using Windows 11 / 10 / 8.1 / 8 / 7, then please launch the PST Merge tool as "Run as Administrator".
  • To Merge PST Files into Existing PST and Existing Outlook Profile, MS Outlook should be installed and configured.
  • Make sure the PST files are not corrupted and not in use by any application.

Supported Editions

  • Microsoft Windows 11(64-bit) / 10(32-bit & 64-bit) / 8 / 7 & Windows Server 2008 / 2012 R2 / 2016
  • Microsoft Outlook 2000, 2003, 2007, 2010, 2013, 2016, 2019 (32-Bit & 64-Bit)

What Clients Say about SYSDaddy Outlook PST Merge Tool

When I was looking for the best PST file merge tool, I came across with the SYSDaddy software while surfing. This PST combiner enabled me to combine Outlook Inbox folders from many accounts into a single folder without MS Outlook. This work will be tiresome if I have to do it manually. Thanks SYSDaddy!

Review PST Merge Tool

Jason Narula

I have used this PST File Merge Tool to manage all of my PST contacts in a professional manner. With this PST merge software, I was able to merge multiple Outlook contact folders into a single one with no duplicates. It arranged my contacts in lot easier way for me. Great Job Guys!

PST File Merge ToolReview

Mathew Harrison

PST Merger Review Review PST File Merge Software
Yes, you can easily combine two PST files or more data files using the "Merge in New PST" option without installing and configuring the Outlook application.
Yes, this PST merge utility allows the user to scan and combine minor corrupted files. If you have severely corrupted PST files, you must first fix them with Outlook PST Repair Tool before performing the combining operation.
Yes, you can use this PST file merge software to combine multiple PST files into one according to your needs. Also, this tool can break the files into MB or GB as per your convience.
Yes, this PST merge software is compatible with Windows 11, 10, and other versions.

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