Combine Multiple PST Files into One Using PST Merge Tool

MS Outlook is being widely used among large users to carry out emailing and other management easily. It stores various data items such as emails, contacts, calendars, etc. in its proprietary file format i.e., PST files. However, sometimes users feel that various PST files from different account should be merged. This is because it becomes quite complicated to handle many PST files and extracting information from them. Thus, users search for a solution that can merge various PST file data items into a single PST file. Outlook does not provide any such utility to combine multiple PST files into one PST. Thus, users can take help of third party applications that can merge PST files without any data loss. One such tool is PST Merge, which assures to merge any number of PST files effortlessly. Our experts have gone through the software to test its functionality. The following section is aimed to provide a transparent review of PST Merge tool.

Must Read:- How To Import PST To Office 365 Manually

Overview of PST Merge Software

The PST Merge is a software which combine multiple PST files into a single PST file. It makes sure that when PST files are merged into a new file, the original PST files should remain intact. PST Merger can save time by merging multiple PST files into a single Outlook Data file and making it easy for the users to access data items quickly within a single file. This software is compatible with Windows 10 and all below Window versions.

Versions of PST Merge

The software is available in following two different versions. Depending upon the requirement, users can go for these versions:

  • Demo Version

The trial/demo version of PST Merge is freely available for download from company’s official website. It allows the users to join initial two folders and export first 15 data items from each folder.

Also Read:- MSG to PST Converter to Convert MSG files to single PST file

  • Licensed Version

This paid version of software can be purchased from company’s official website. It allows user to export complete data items from any number of PST files.

Key Features to Combine Multiple PST Files into One

The PST Merge is the tool that combines complete data items of PST file like inbox, contacts, calendars etc. Some of the key features of PST Merge are as follows:

  • Merge Outlook Folder

The PST file merger tool allows the users to combine any number of PST files or folders into a single PST file without any data loss or integrity changes. It offers merge operation in three different ways:

  • Merge Multiple PST
  • Join any number of PST
  • Combine only PST contacts

Merge Outlook Folder

  • Combine PST Files containing All Outlook Items

The software facilitates the users to join two or more Outlook data files and save them into PST. Moreover, the folder hierarchy is also maintained at each level while merging the data.

Also Read:- How to Recover PST Password through PST Unlocker

  • Merge all Outlook Files

This tool enables user to merge all common folders from multiple MS Outlook PST files such as inbox, contacts, calendars, drafts, sent items, tasks, notes, journals, to-do list etc., into a single large UNICODE type Outlook PST file.



  • Merge Outlook Contact Folders

Users can combine Outlook Contacts folders from multiple PST files. This software generatesa PST file that have all contacts combined into single folder. Moreover, it assures to maintain all attributes like name, email, contact number and notes together.

Merge Outlook Contact Folders

  • Remove Redundant data items

PST merger tool permits users to combine multiple PST files together and if any duplicate item is present then remove them simultaneously.

Remove Redundant data items

  • Add folders to integrate Outlook files

If users want to combine all Outlook data items together then, no need to merge each PST file gradually. PST Merge tool allows to integrate two or more PST data items at once by providing the “Add Folder Option” and performing the merge Outlook process in batch.

Also Read:- How To Convert Corrupted OST to PST

Add folders to integrate Outlook files

  • Progress status of PST files

As the merging begins, tool will display the whole summary report of merged Outlook PST files. After completing this, it will also create progress report including the number of PST data-items, name of PST files, found duplicate items etc.

Progress status of PST files


  • Removes duplicacy while merging PST files.
  • Combines UNICODE as well as ANSI into single UNICODE type


This software can merge healthy PST files only. It does not provide assistance to merge corrupted PSTs.

Observational Verdict

After considering both the positive and negative aspects of the software, we can summarize that the PST Merge Software is a reliable exporting tool that allows user to merge multiple PSTs into a single PST file. Moreover, it is able to combine UNICODE as well as ANSI PST into single UNICODE type. It can be rated as 9.7/10 as corrupted PSTs cannot be combined using the tool.

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