PST Merge

SysTools PST Merge

Join & Merge Multiple Outlook PST Files Together into Single PST

(Average Rating 4.6 Based on 185 Reviews)
  • Batch Processing
  • No Size Limit
  • Rapid Throughput
  • 24x7 Support
  • Compatible ANSI/Unicode PST
  • Easy Management
  • Join & Merge PST File
  • Simplest User Interface

Highlighted Features in PST Merge Software

  • Merge Multiple Outlook data files with all items: emails, contacts, calendars, tasks
  • 3 Merging Options: Join PST file; Merge multiple PST files & Merge Outlook contacts
  • Remove duplicate items while merging many PST files & folders together
  • pst feature large-sized Merged PST into smaller parts
  • No 2 GB file size limitation: Combine multiple archive .pst files of any size
  • Particularly merge Outlook contact folders
    You can merge Outlook contact folders from different PST File easily. For e.g -
    • If you have 10 PST files & wants to merge contacts from only 4 files.
    • Then, you can select contact folders from those 4 PST files.
    • After selecting; Click on Merge Button to Apply.
    from multiple PST files into one
  • Merge UNICODE as well as ANSI PST into Single UNICODE type PST
  • Merge PST Files Software supports MS Outlook (32/64 bit) and
    Software supports to merge multiple PST files into one in Outlook 2019, 2016, 2013, 2010, 2007, 2003 & below versions
    Windows 10 (32/64 bit)
    PST File merger supports Windows 10, 8.1, 8, 7 & below versions

There might be situation arrived spontaneously which requires the creation of Multiple Outlook PST files. With the creation of multiple Outlook PST files handling and managing PST file is such a hectic task. But with SyTools PST Merge Software the process to merge multiple PST file into one seems to very easy. With Outlook PST file merger software user will get 3 different option to precisely merge two archive.pst files in Outlook 2019, 2016, 2013, 2010, 2007 etc. Best part of the tool is that supports both ANSI and UNICODE PST file format. Any Outlook user can tremendously use it to merge Outlook files or folder.

William Lefkovics
Microsoft Certified Professional & Exchange MVP
Software Informer

Software Informer awarded Merge PST Software as 100% safe and quick processing tool to merge Outlook data files


SysTools Merge PST File tool gets 100% clean award by Brothersoft for delivering Ad/Virus/Spyware free solution to join Outlook emails, contacts, calendars etc.


SysTools PST Joiner got the 5 stars rating from Cnet for his excellency in merging multiple Outlook data files into one without any glitches.


Soft32 rated SysTools Merge multiple Outlook data files software with 5 star rating for its efficiency in combining two PST files with attachments.

Software Suggest

SysTools Outlook PST File Merge Software is one the best software among various others to merge multiple pst files into one in outlook 2007, 2010, 2013, 2016.


Softpedia awarded SysTools Merge PST Files Tool as 100% clean, Ad/Virus/Spyware free software to join pst files together

List of Key Features in PST Merge Software
Easily Merge PST Files into Outlook 2019, 2016, 2013, 2010, 2007, 2003

merge options

3 Options to Merge PST Files

The PST File Merge tool provides user with multiple options: Join, Merge & Merge Contacts. Join Option allows users to join PST Files by creating New PST Folder. Merge Option allows users to combine similar PST into single PST file. Merge Contact Option allows to join contacts within PST. Three Merging Options are:

  • Join Multiple PST Files
  • Merge Multiple PST Files
  • Merge Contacts Folder only

merge pst file options

join pst file

Join MS Outlook PST Files

PST Joiner Tool allows you to join multiple outlook data files by creating new folder for merged Outlook file. You can choose this option to add all the PST files under a common PST file and each PST file will have their data in a respective new folder. The software supports to merge multiple PST files into one in Outlook 2019, 2016, 2013, 2010, 2007 & lower versions.

merge multiple Outlook pst files

Merge Multiple PST Files

Software allows you to merge all similar folders from two or more MS Outlook PST files like: inbox, contacts, calendars, drafts, sent items, tasks, notes, journals, to-do list etc. together into single PST file of UNICODE type.

merge outlook contacts

Merge Only Contacts Folders

You can also particularly merge Outlook contacts folders of multiple outlook data files into single PST file. Merge Outlook data files tool will create a single PST file having all contacts merged into one folder and keep the Meta properties of the contacts like: name, email addresses, contact numbers, company name, groups, and notes etc. intact.

merge and remove

Merge & Remove Duplicate Items

PST merger allows you to combine multiple PST data files together and simultaneously remove the duplicate items; if any. You only need to check / uncheck on the Remove Duplicates Option to enable / disable the removal of duplicates.

merge multiple pst file

Add Folder to Merge PST Files

In order to combine multiple outlook data files together, you do not need to add each PST file one by one. PST Merge software provides "Add folder" option to integrate 2 or more PST files at once and perform the merge Outlook folder process in bulk. On the other hand, if you want to add one file at a time then choose "Add files" option.

exclude deleted items

Include / Exclude Deleted Items

While merging two Outlook PST data files into one, if you do not want to combine deleted items folders then check the option to Exclude deleted item folder. Software will not merge deleted items folders into the resultant merged PST file and this will help you minimize the time consumed in combining the deleted items.

summary report

Get Complete Summary Report

As the merging starts, software will show you the progress status of merged PST files. After its completion, it will also generate a report by showing up the number of PST files, name of PST file, duplicate items found, total item count and the merge status. Also, it will show the name of merged PST file, location of merged PST file and create duplicate.csv file.

PST Merge Tool Screenshots
Know How to Combine Multiple Outlook PST Files into a Single File
PST file merge utility
Step 1: Install & Run PST Merge Software
add file and folder
Step 2: Select & Add Files or Folder to Merge
join and merge option
Step 3: Choose Option - Join, Merge PST or Merge Contacts
merge multiple pst files
Step 4: Merge Multiple PST Files into Single
Watch Live Video of PST Merge
Learn How to Merge Two PST Files in Outlook 2007,2010, 2013, 2016, 2019

Download PST Merge Software
PST Merge Box

Size: 8.5 Version: 4.0

Trial Limitations

Demo version of Merge PST Files software limitation:

  • Join PST Limit: Join the initial 2 folders of each PST file.
  • Merge PST Limit: Merge only first 15 items of each folder of PST files.
  • Merge Contacts Limit: Merge only first 15 items of each folder of PST files.

Download PST Merge

Installation Uninstallation EULA

System Specifications

  • Support: 50 MB of free hard disk space
  • Processor: Intel® Pentium 1 GHz processor(x86, x64) or equivalent
  • Hard Disk Space: 100 MB of free hard disk space

Application Pre-Requisites

  • Microsoft Outlook should be installed and should be configured properly for any valid or dummy profile/account (Not Configured for Exchange) to integrate 2 PST files.
  • If you are using Windows 10/8.1/8/7 or Vista, then please launch the tool as "Run as Administrator"

Supported Editions

  • Microsoft Windows – 2000, 2003, 2008, XP, Vista, or Windows 7/8/8.1/10, 2008/2012 (32-bit & 64-bit)
  • MS Outlook – Outlook 2000, 2003, 2007, 2010, 2013, 2016 (32/64 bit), 2019

Application Pre-Requisites

  • Microsoft .NET framework 4.0
Frequently Asked Question
Common Questions Asked by User
Merge Multiple Outlook PST Files Together into Single PST

I will be glad if you can help me out with the brief working of this software.

How is Join PST option different from Merge PST?

Is software compatible with Outlook 2016?

Yes, Merge multiple Outlook data files software is fully compatible with Outlook 2019, 2016, 2013, 2010, 2007 (both 32 and 64 bit) and all previous version of Outlook in both 32 and 64 bit.

Does it matter whether Outlook is open or closed during merging process?

No, it doesn't matter whether Outlook is open or closed while merging PST items. But you must make sure that the source PST file is not being used by Outlook, while you merge Outlook items.

How many outlook files can I merge at a time?

You can add any number of PST file for merging. Either add file individually or in bulk; as a folder consisting of the PST files to be merged as per your convenience.
Note: When you integrate 2 PST files, keep in mind that the source file should not opened in Outlook.

Does the PST merge tool skip duplicates while merging?

Yes, only if you check the "Remove Duplicates" option, software will remove duplicates while merging and keep the resultant file free from duplicates.

Is Outlook installation necessary to combine multiple PST files?

Does the software Support Windows 10 machine of 32 as well as 64-bit?

Yes, Merge PST data files software supports Windows 10 machine of both 32-bit & 64-bit plus below versions. Hence, you can run the tool on any Windows machine.

What will be the format of resultant PST File: UNICODE or ANSI?

The PST Joiner creates resultant PST file in UNICODE format, which can further be opened in Outlook version 2003/2007/2010/2013 respectively.

How much time will software take to join 15 files?

Time taken by the software to merge PST files into Outlook 2007, 2010, 2013, 2016, 2019 depends upon the number of PST files and their respective size.

Does the tool work with corrupted PST files too?

Can I save merged pst into new folder?

Yes, after combining the PST files, you can save it in your machine at any desirable location or you can create a new folder from the software panel itself and save the merged PST file directly into that folder. The club PST File software will save the merged PST file with a default name i.e. outlook.pst.

How can I merge multiple pst files into one in Outlook 2013?

What is the best way to merge Outlook contacts of two different email accounts?

Get an Overview of PST Merge Features - DEMO and Licensed Version

Features DEMO Version FULL Version
Add Files & Folder
Remove duplicate Emails
Exclude Deleted Items
Windows 10 & All Other Previous Windows Version Supported
Join Outlook PST Files Join First 2 Folders All Items
Merge Outlook PST Files Merge First 15 Items All Items
Merge Outlook Contacts Merge First 15 Contacts All Items
Cost FREE $39
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PST Merge + Outlook Recovery + PST Password Remover




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Bundle - PST Merge + Outlook Recovery + PST Password Remover

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Note: Software will get delivered on your registered email id, within few minutes after placing the order.

Electronic Delivery: The delivery of product is automated. You will receive an email containing both the link to download the product and the activation key within few minutes after payment confirmation.

Purchase Order: You can place the order via Purchase Order(PO) Click Here

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License Information Personal License Business License Enterprise License
File Limitation Merge Multiple PST Files into Single PST Merge Unlimited PST Files into Single PST Merge Unlimited PST Files into Single PST
Bulk Conversion Support
24×7 Technical Support Unlimited Unlimited Unlimited
1 Year Free Product Updates
30 Day Money Back Yes, Money is refundable Yes, Money is refundable Yes, Money is refundable
Features in Demoware & Commercial License

An Overview At The Contrast between Trial & Purchase License

PST Merge DEMO Version FULL Version Bundle Offer
Add Files & Folder
Join Outlook PST Files Join First 2 Folders
Merge Outlook PST Files Merge First 15 Items
Merge Outlook Contacts Merge First 15 Contacts
PST Password Remover
Add Multiple PST Files
Preview PST Status as Locked
Generate Status of Locked PST
Remove Password
Outlook Recovery
Add Outlook PST file
Preview PST File components
Quick and Advance Scanning Mode
Export Outlook File to PST, EML or MSG
Frequently Asked Questions

Listed Commonly Asked Questions and Answers

What Clients Say

I have faced many issues while maintaining a multiple number of PST files that I had to manage separately in order to be at ease. But unfortunately it was causing me double the problem. Thankfully, I was told about SysTools PST Merge application that was exactly what I needed. Thank you!

Kelly Simmons, London

I had been working with Outlook both; at home and at work. But the main issue that I faced was while managing both the PST separately. It was infuriating me to keep on checking the performance of both the PST files and maintain their sizes. With SysTools Merge PST Files Software, I simply merged them & now enjoy the management with a simple PST file clubbing option.

Francis Young, Spain

The PST Joiner software is easy to use & in just few simple steps I had Outlook PST file from my old PC merged with the new Outlook data file. I will surely recommend this tool to my colleagues at work!

Alex Martin, Sydney

Saving the PST files altogether is one of the difficult task so, I was in search of a tool which can easily combine all my PST files together. Then, one of my friend told me about PST Merger, this tool helped me a lot to merge PST files without duplicates. My heartiest thanks to the developer team of this software for making such a mesmerizing tool.

Eminem, New York
  • I have sucessfully combine PST files with PST file merge software. But the file size limit exceeds the default limit that our server administartor allowed. What can I do now?


    Researcher, USA

    Reply for Comments

    • Hi, Thanks for choosing SysTools PST Merger software to easily join multiple PST files. Please check software also provides option to split PST file into smaller parts. So you can use the same to manage the data as per requirements.


      Developer, USA

  • I have checked that software provides 3 different option to merge multiple Outlook data files into one. But I am little bit confused which one is best for me?

    Adrich Calvin


    Reply for Comments

    • You have correctly analyzed that software provides 3 uniques ways to merge two archive PST files. Let me describe the functionality of each separately

      1. Join: Join Outlook PST Files with this option. It will create new folder for each PST file.
      2. Merge: It allows you merge multiple Outlook daya file into one with same folder hierarchy.
      3. Merge Contacts: With this option you can easily merge Outlook contacts stored in multiple PST files or folder.


      Developer, USA

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