Salient Features

The unique features of the Kernel Merge PST tool with 100% accuracy and complete data integrity.

Merge Multiple PST Files

Merge Multiple PST Files The Kernel PST Merge tool can smoothly merge two or more PST files into one single PST file without any data loss or interruption. The output PST files will have all the mailboxes, features, properties, and the original folder structure of the merged PST files.

Two Different Options for Merging PST Files

Two Different Options for Merging PST Files It gives you two options to merge PST files. With the "Merge" option, you can merge data from a large number of PST files into a single PST file, and with the "Join" option, you can merge data from all the PST files in a new PST file while keeping separate folders.

Merge only Selected PST Folders

Merge only Selected PST Folders Sometimes, we only need to merge some specific folders, and this tool gives you the freedom to merge only selected folders of PST files. You just need to uncheck the folders that you do not want to merge with another PST.

Merge Every Item of PST Files

Merge Every Item of PST Files With the software, you can merge all the items of a PST file, including emails, contacts, calendar, tasks, etc. with complete data integrity. There are multiple checkboxes on the filter page where you can choose each feature directly.

Merge Any Number Archive PST

Merge Any Number of Archive PST Files It allows users to merge all kinds of Outlook PST files, including archive PST files. There is no restriction on the number of archive PST files for the merging process.

Merge Password-Protected PST Files

Merge Password-Protected PST Files It comes with an advanced feature to effectively merge password-protected PST files without any need of removal. With this feature, you can merge multiple password-protected PST files seamlessly. It also merges PST files available on the network.

Join Unlimited PST Files

Join Unlimited PST Files Using this software, users can join any number of PST files, whether protected or archived files into one PST file. The joined PST file contains all the added PST files as separate folders. When you join multiple PST files, a new PST file is created along with different folders to save all the data of the PST files.

Advanced Filtering Options

Advanced Filtering Options It offers advanced filtering options using which you can merge specific items of a PST file, such as Emails, Tasks, Calendar, Contacts, etc. Also, you can merge data between a particular period. The tool also allows you to remove deleted or junk folders while merging the PST files. This feature helps avoid unwanted or scrapped items so you can store appropriate data in the final merged PST.

Filter Items by Date Range before Merging

Set a Particular Date Range to Merge PST Files With this tool, you can set a specific date range for items before merging your PST files. It means if you want to merge items between a particular period of time, such as March 2016 to Dec 2018, then it can easily be done with the tool.

Merge to Existing or New PST file

Multiple Saving Options for Merged PST Files The tool offers two saving options to save the merge or join multiple Outlook PST files. One option is to move the merged files to the newly created PST file. And the other option is to save the merged PSTs to an already existing PST on your system. While saving the final PST files, users need to choose the output option and specify the destination to save the file.

Skip Duplicate Items

Skip Duplicate Items It allows users to skip duplicate items while merging multiple PST files. This means you can avoid merging duplicate items based on Subject, Sender Email, Sender Name, Recipient Name, Text, Attachments, and other items. The tool also offers an advanced duplicate option to skip duplicate items effectively.

Support Every Version of MS Outlook

Support Every Version of MS Outlook The PST Merge software runs seamlessly on all versions of MS Outlook, including Outlook Office 365, 2021, 2019, 2016, 2013, 2010, etc. Therefore, you can easily install it on your system without any hiccups and merge multiple PST files smoothly.

What needs doesPST Merger tool fulfill?

Kernel Merge PST can fulfill the following needs:

  • Merge two or more PST files in a single PST
  • No file size limitations to merge PST files
  • Merge every item of PST files with 100% accuracy
  • Offer advanced filters to merge selective items
  • Merge specific folders of PST files
  • Merge multiple password-protected and large-sized PST files to existing or new PST file

What is aPST File?

PST is the short form of Personal Storage Table, which is an MS Outlook file format that stores a user’s data for POP3, IMAP, and web-based email accounts. All versions of MS Outlook use PST files. However, in earlier versions (Outlook 2000 and 2002), the PST file was stored in ANSI format with a file size limit of 2GB. In later versions, it is stored in UNICODE format with maximum file size of 20GB or 50GB.

The default location of PST file in Windows Vista and earlier operating system and Outlook 2007 is:


In the latest Windows operating systems and for Outlook 2010, the default location is:

C:\Users\%username%\Documents\Outlook Files

It offers a simple procedure to merge multiple PST files. Follow the steps below:
  1. Launch the tool on your system.
  2. Add the PST files that you want to merge.
  3. Select the folders to merge.
  4. Apply the required filters on the PST files.
  5. Select a location on your system where you want to save the merged file.
  6. Click “Next” to start the merge process.
Yes, The tool includes an option to 'Merge in Existing PST,' selecting which you can easily merge multiple PSTs to your existing PST file. There is another option, 'Merge in New PST, ' which allows you to merge or join the data from the PST files to a new one.
Yes, using the “Join” option of the tool, you can easily merge PST file data keeping the folders separate.
Yes, it is capable of merging deleted items as well as junk items of PST files.
Yes, it is capable of merging deleted and junk items of PST files. Even you can skip merging them through the advanced filtering option.
The Kernel PST Merge tool allows you to specify the location of your choice on your system to save the merged PST files. You can even save the merged files in the existing or a new PST file.
No, the PST Merger tool doesn’t allow to export PST files to any other platform.
No, currently, this tool is compatible with Windows operating system only. You can transfer PST files on a Windows system and merge them by installing the tool.
First, you'll have to purchase the technician version of the tool. You'll receive the activation key via email. Now, download the technician version from the shared link. After installing the tool, enter the provided key to activate the technician version. Now, you are ready to access the technician version of the tool.
It allows you to merge multiple PST files without any hassle, whether it's ANSI PST or Unicode PST files. You can also merge password-protected, and Network PST files through this tool.
Yes, you can easily merge large-sized PST files with the tool. It supports PST file of every size.
The software has an interactive user interface, making it easy for users to merge specific folders. To do so, first, add the PST files, and then the tool will show all the folders of a PST file. You can select the specific folders you want to merge from here.
Yes, it offers an advanced date filters option through which you can set a specific date range for items before merging your PST files.
No, the trial version allows you to merge 20 items per folder. If you want to merge the whole data, then purchase the full version.
Yes, the software allows you to merge password-protected PST files without any need of removal.
How it Works?
STEPS TO Merge Outlook PST Files

Kernel Merge PST is a technically advanced and powerful tool designed to join and merge multiple PST files into a single PST within a few steps. The tool also supports merging and joining of large-sized and password-protected PST files with complete accuracy and data integrity. To better understand the process, have a look at the screenshots of the tool:


Software Prerequisites & Recommendations

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About Product

  • Version: 19.7
  • Release Date: Sep 2019
  • License Type: Home, Corporate & Technician

Version Support

MS Outlook - Outlook Office 365, 2021, 2019, 2016, 2013, 2010, 2007, and earlier versions

System Requirements

  • Hard Disk

    50 MB of disk space

  • Memory

    64 MB Minimum

  • Processor

    Intel® Pentium Processor compatible (x86, x64) or equivalent

  • Operating System

    Windows 365, 11, 10, 8.1, 8, 7, Vista, XP, 2000, 98, NT and 95 and Windows Server 2016, 2012, 2008 R2, 2008, 2003 R2, 2003

Software Guides

What customers say about Kernel Merge PST
rating5 (4.9 / 5) 581 Reviews
The tool's easy-to-use design and dependable merging process make it really good.

I had many PST files that needed to be put together, and this tool did it really well. It made everything smooth, and I didn't have any trouble. If you're dealing with messy PST files, you should try this tool – it's great!

Alisa Morgan
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