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Combine PST Files Without Duplicates

This is the perfect solution for users who wants to merge multiple .pst files into one.

  • Simple interface for beginners and non-technical users.
  • Maintain all email attributes and folder structure.
  • No size limit to merge large Outlook PST files.
  • Merge multiple PST files into one without data loss.
  • Remove duplicate items during the merging process.
  • Merge into a new or existing PST file easily.
  • Convert PST into 30+ popular file formats.
  • Maintains folder hierarchy while merging PST files.
  • Safe and secure PST file merge process.
  • Download Free PST Merge Tool – available for trial.
  • Provides 24/7 technical support for all users.
  • Support PST from Outlook 2021, 2019, and earlier versions.
  • Compatible with Windows 11, 10, 8, 7, Vista, XP, and others.
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Why Choose Advik Outlook PST Merge Tool?

Download it now and explore its outstanding feature right away.

Merge PST File

Outlook archive its mailbox data in a PST format. This file stores email messages, contacts, calendars, journals, tasks, and other mailbox components. If users have multiple data files and wish to combine them in a single .pst file, then you can use Advik PST Merge Tool. This software is beneficial in many ways like;

  • Combine or Join PST files in a single data file.
  • Transfer Outlook archive file to a different webmail account.
  • Merge multiple Outlook Data files into a new PST
  • And many more.

Along with merging, PST Combiner tool also export multiple PST files to 30+ file formats. As well as transfer this archive file to various other web-based email accounts 

Premium Features of Best PST Merge Software

Below are the top-notch features of Advik Software to Merge PST files without duplicates safely

Maintain Folder and Sub Folder Structure

PST Merge software is designed with an advanced algorithm that can join PST files together without any modification. Along with it, this utility is programmed to preserve folder and subfolder structure during the merging process. It will be easy for users to find the emails in the newly created consolidated PST file. Also, the status of your email folder will remain unchanged (read or unread) after the process is complete.

merge multiple outlook pst file
combine outlook archieve

Convert PST File to 25+ File Formats

If you want to export emails from a PST file to various file formats, this tool will do that process as well. With PST Merge tool, you can convert PST data to MBOX, EML, MSG, CSV, PDF, HTML, DOC, and other 20+ file formats. Most importantly, the user does not need to use any other tools to save email in these file formats. This utility has all of these file saving options in a single interface.

Transfer PST Data to Cloud Email Servers

There might be a few scenarios where you might want to export PST data to web-based email servers. While using this PST Combiner, you can Import Outlook PST file to Gmail, Outlook.com, Google Workspace, Yahoo, Yandex, Zoho and other email servers. In addition, this tool can also transfer .pst files to other email clients, the user only has to enter his login data.
(Note: If you don’t find the email server in the saving option list, then select the IMAP option and enter your account login details.)

merge pst file
PST Merge Tool

Preserve and Hold Email Attributes

When merging multiple PST files, this tool ensures that the email attributes are preserved. When the process is complete, you will find your email attributes i.e. to, subject, cc, bcc, from, message body, attachments, inline images, digital signatures, hyperlinks same as the original.

Additional Features of Advik PST File Merge Software

Explore extra benefits of this tool to merge multiple Outlook PST files easily

Combine PST files into a single file

Advik PST Merge Tool is a powerful and easy-to-use PST file merge tool designed for Outlook users who want to combine their PST files. If you have several PST files from different accounts, this PST merger helps you combine them into a single, organized file. With just a few clicks, you can combine Outlook mailboxes efficiently.

Extract Attachment from Outlook PST

Besides merging, this PST file merge tool also lets users extract attachments from Outlook emails. It can export attachments such as images, PDFs, or documents from multiple PST files in one go. Whether you’re managing business records or cleaning up mailbox storage, this feature helps you access all attachments separately.

No File Size Limitation

One of the major advantages of this PST file merge tool is that it has no size limitation. Whether your PST file is 2 GB or 50 GB, the tool merges them without data loss or corruption. It ensures smooth processing even for large files and maintains the complete data integrity of each mailbox item.

Merge PST Files Without Outlook

This PST combiner tool works independently, without the need for Microsoft Outlook installation. It’s a complete standalone solution that merges two or more PST files without depending on any external email client. Whether you are merging personal, archive, or shared mailboxes, the software performs the task automatically and securely.

Export Contacts from PST file

Contacts are the most important aspect for every company. Storing those contacts is every organisation's priority. Here this merger tool for PST exports all contacts from the Outlook PST file. If the user wants to save these contacts in a standard file format, this tool also extracts contacts from PST in CSV as well as in vCard format.

Merge Password-Protected PST Files

If you have password-protected or encrypted Outlook PST files, this PST merger handles them with ease. It can process locked PST files without requiring the password, merging them into a single accessible PST. This saves users from the trouble of recovering or removing passwords manually.

Compatible with All Outlook Versions

This PST combiner tool supports all versions of Microsoft Outlook, including Outlook 2021, 2019, 2016, 2013, 2010, 2007, and older. It is compatible with both ANSI and UNICODE PST formats, enabling users to merge old and new PST files without compatibility issues. You can even consolidate data from different Outlook versions into one unified PST file.

Save Merged PST File at Desired Location

With this PST merger, users can select the destination path where the merged PST file should be saved. This helps organize your output files efficiently and eliminates the need to search for them later. You can save the final PST file on your local disk, external storage, or network drive for easy access and backup.

Simple, User-Friendly Interface

Advik PST Merge Tool features a clean and intuitive interface that anyone can operate — even users without technical knowledge. The step-by-step wizard guides you through the process, from adding PST files to completing the merge. It eliminates complexity and delivers a seamless experience, making it a favorite among both individuals and IT administrators.

Selective Folder Merging

The PST merger tool gives you the flexibility to merge only specific folders, such as Inbox, Sent Items, or Drafts. There’s no need to merge unnecessary data or duplicate items. This selective merging option helps users create a cleaner, more focused Outlook file. It’s especially beneficial when you’re dealing with multiple PST files and only want to consolidate essential folders.

Free Demo Version

The free PST merge tool version of Advik PST Merger allows users to merge up to 25 items per folder at no cost. This trial feature helps users test its functionality, speed, and accuracy before purchasing the full version. It’s the perfect way to experience how the software works without any financial commitment.

Post-Merge Summary Report

After completing the merge, the tool automatically generates a summary report showing how many items, contacts, and folders were merged and where the new PST file was saved. This transparency ensures that the process is error-free and provides confirmation that all selected data has been successfully merged.

24/7 Technical Support

Advik Software offers 24/7 technical support to assist users whenever they need help. Whether you face installation errors, activation issues, or any technical queries, the support team is available via live chat and email. This customer-first approach makes the Advik PST Merge Tool not only reliable but also user-friendly, even for first-time users.

Supports Multiple Editions of Windows OS

Advik PST Merge Tool works smoothly on all editions of Windows, including Windows 11, 10, 8.1, 8, 7, Vista, XP, and Windows Server 2008, 2012, and newer versions. Whether you’re using a personal computer or a corporate environment, this PST merge tool free from compatibility problems, ensures stable performance on every system.

How to Merge PST Files Without Duplicates?

Follow the complete instructions to combine multiple outlook pst files at once

STEP 1: Run Software

Launch Outlook PST Merge tool and add folder having multiple PST Files

STEP 2: Select Folders

Select PST Folders that you want to merge into a new PST File

STEP 3: Select PST as Saving Option

Select PST as a Saving Option from the list

STEP 4: Click Convert

Choose output target location to save resultant file and click Convert button.

launch the PST Merg Tool
add pst file
select saving options
Merge pst files

Software Specification

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System Requirements

Processor Pentium Class or higher

Operating System Windows 11, 10, 8.1, 8, 7

Memory 1 GB recommended

Hard Disk 100 MB of free space

License Delivery

Electronic via Email

Standard License

MSG, EML, EMLX, TXT, PST, MBOX, HTML, MHT, XPS, RTF, DOC, Windows Live Mail, ICS, vCard, CSV, TIFF, BMP, GIF, JPEG and PNG

Pro License

MSG, EML, EMLX, TXT, PST, MBOX, HTML, MHT, XPS, RTF, DOC, Windows Live Mail, ICS, vCard, CSV, TIFF, BMP, GIF, JPEG, PNG, PDF, Lotus Notes, Zimbra, Maildir, Thunderbird, My Office Mail, Entourage (RGE) OLM, Gmail, Outlook.com, and Yahoo

Migration License

MSG, EML, EMLX, TXT, PST, MBOX, HTML, MHT, XPS, RTF, DOC, Windows Live Mail, ICS, vCard, CSV, TIFF, BMP, GIF, JPEG, PNG, PDF, Lotus Notes, Zimbra, Maildir, Thunderbird, My Office Mail, Entourage (RGE), OLM, Gmail, Outlook.com, Yahoo, Office 365, Exchange Server, Hosted Exchange Server, G Suite, IBM Verse, and Amazon Workmail

Who Loves Advik Software

Help us to serve you better by sharing your valuable feedback

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4.8 Overall Satisfaction Rating! Based on 842 Reviews

✍ Share Your Feedback

I was searching for a reliable method to merge PST files into a single file. After trying several tools, I faced data loss issues. Then, a colleague recommended the Advik PST Merger, and I’m truly impressed. It merged my Outlook PST files perfectly and helped me merge PST files without duplicates. Most importantly, there was no data loss at all. Thank you, Advik team, for creating such a great tool

Rachel Ward

Australia
With the Advik PST Merge Tool, I was able to combine PST files without duplicates quickly. It even merges damaged or corrupt PST files safely and creates a fresh Outlook data file. A must-have for anyone managing multiple PST files.

Daniel Wyllie

United Kingdom
This software works flawlessly! It helped me merge PST files into one without losing any data. I also used it to combine my archive PST files — smooth and effortless experience.

Adam Smith

United States
Merging multiple Outlook PST files manually is quite complex, but this PST Merger tool made it so simple. Even as a non-technical user, I could combine PST files without duplicates easily and without any data loss. Highly recommended!

William Richard

United States
I’ve used the Advik PST Merger several times, and it works like magic every single time! It’s quick, accurate, and super easy to use. A perfect tool if you need to merge multiple PST files efficiently.

Ethan Jones

Canada
The Advik PST Combiner Tool is the most reliable and secure way to merge PST files into one. It ensures zero data loss while maintaining folder hierarchy and attachments. Truly the safest choice!

Emiliy Granger

London
After testing many merge tools, I can confidently say that Advik PST Merger is the best. It helped me combine PST files without duplicates quickly. The interface is simple, fast, and user-friendly — just what I needed for managing my Outlook data efficiently.

Natalya Volkova

Russia

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Frequently Asked Questions

Ans. Follow the below steps to merge multiple PST files into one in Outlook 2016.

  • Step 1. Install and run the Advik PST Merge tool on your Windows OS.
  • Step 2. Select folder having multiple Outlook .pst files.
  • Step 3. Select the mailbox folders you want to merge and click the Next button.
  • Step 4. Choose PST as a saving option from the list
  • Step 5.Click the Convert button to start the process.

Finished! Now the software will merge pst file and remove duplicates in no time.

Yes, you can easily operate this tool on Windows 11, 10, and other previous versions.

Yes, this software is capable enough to repair PST file and then join PST files.

Yes, you can choose specific email folders, such as Inbox, Sent Items, Drafts, or custom folders, before merging.

Yes, Using Advik PST Merge Tool you can easily merge two Outlook archieve together.

Yes, You can combine password-protected/encrypted/corrupted or any type of PST files without any issues. Also, no password is required to carry out this function.

Yes, PST Merger will maintains the folder and sub-folder structure of Outlook PST data.

No, this software is compatible with multiple versions of Outlook, including Outlook 2019, 2016, 2013, 2010, and older versions. Also compatible with all Windows OS.

Yes, most Advik PST Merger software supports both ANSI (older format) and Unicode (newer format) PST files. So that you can merge different types of PST files without any compatibility issues.

Yes, the Advik Merge PST File Software works well for maintaining user data integrity. It will retain all email properties and attachments while merging PST files.

Yes, once the merge process is complete, you can easily import or open the newly merged PST file in any version of Microsoft Outlook, including 2021, 2019, 2016, and earlier.

No, the software does not impose any file size restrictions. You can merge large PST files without any issue.

No, this tool doesn’t offer a preview feature. However, you can select specific folders for a more customized merge.