PST Merge

                                 Specification Video Screenshots How it Works

SysTools PST Merge

Merge Multiple PST Files Together into Single Large Unicode Type Outlook PST

  • Batch Processing
  • No Size Limit
  • Rapid Throughput
  • 24x7 Support
  • Compatible ANSI/Unicode PST
  • Easy Management
  • Reduce PST Size
  • Simplest User Interface

Highlighted Features in PST Merge Software

  • Merge Outlook files with all items: emails, contacts, calendars, tasks
  • 3 Merging Options: Join PST file; Merge multiple PST & Merge contacts More
  • Particularly merge Outlook contact folders from multiple PST files into one More
  • Remove duplicate items while merging many PST files & folders together More
  • No 2 GB file size limitation: Combine numerous Outlook any sizes files
  • Merge UNICODE as well as ANSI PST into Single UNICODE type PST
  • Supports Outlook 2016 & all below versions: 32 bit & 64 bit Format

You may be Interested in:

Have corrupt PST File? Use SysTools Outlook Recovery

Want to Split large PST File? Use SysTools Split PST

Download PST Merge Software
PST Merge Box

Size: 7.6 Version: 3.2

Product Review
by Exchange MVP, MCSE
William Lefkovics



Trial Limitations

Demo version of PST Merge 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

System Specifications
  • Hard Disk Space: 50 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)

List of Key Features in PST Merge Software

merge options

3 Options to Merge PST Files

The PST file finder tool allows searching all the PST files present within Exchange Server machines. Software finds PST files in single machine as well as in all machines listed under 1 domain. You can select any of the machine to load PST files present in it.

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

merge pst file options

join pst file

Join MS Outlook PST Files

Tool allows you to join two or more 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.

merge multiple pst file

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. Software 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
pst merge tool
Step 1: PST Merge Screenshot
add file and folder
Step 2: Add Files or Folder
join and merge option
Step 3: Join & Merge PST Files
merge multiple pst files
Step 4: Merge into a Single PST
Watch Live Video of PST Merge
Frequently Asked Question
How is Join PST option different from Merge PST?
What is the difference between Join and Merge options? The explanation in the program is not clear to me.

Join PST file option will join all the PST files into one with a separate folder created for each PST within the resultant personal folder file. However, by using Merge Option, all common folders are created as one and emails get merged in the respective folder they belong to; within the resultant PST file.

Is software compatible with Outlook 2013?

Yes, PST File Clubbing software is fully compatible with Outlook 2013 (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?
I have a set of 20 outlook files which are copied from another machine. But I don't have Outlook installed on my machine. Can I still use your software on my current machine?

Yes, it is necessary to have Outlook installed on your system. Outlook must not only be installed but should be configured with any POP3 or dummy profile as well. Without Outlook, tool will display errors like "Outlook Session Creation Error". See how to install & configure MS Outlook on your machine.

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

Yes, PST Merge 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 software 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/join multiple outlook PST files totally depends upon the number of PST files and their respective size.

Does the tool work with corrupted PST files too?
I have 25 PST files. Some of them are not accessible; may be corrupted. Can I club them also into one single file using PST Merge?

No, the tool does not work if the file is corrupt or inaccessible. A PST file should be healthy and you must have all admin rights to access them for merging. Though, if the file is corrupt, then you need to repair corrupt PST file first after that you can easily merge PST files.

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.

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 PST Merge, I simply merged them & now enjoy the management with a simple PST file clubbing option.

Francis Young, Spain
PST Merge Order Now

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

Features FREE 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 $69