Merge and Join Outlook PST

PST Merge Software to Combine Outlook PST Files

PST Merge combines several Outlook PST files into one. Add the files, choose Merge or Join and save the result as a new PST, an existing PST or an Outlook profile.

  • Merge or Join many PST files
  • Duplicate removal by item type
  • Password protected and ANSI PST files
  • Windows and Mac editions
PST Merge main screen with the Add Files button and the Merge and Join options
Add your PST files, choose Merge or Join and combine them.
  • Free DemoTest before you buy
  • 30 Day RefundDemo test comes first
  • Card or PayPalHosted store checkout
  • Fast License KeySent by email
  • 24x7 SupportChat and email

1Is this my case?

Which Cases Need PST Merge?

Find your case below. RecoveryTools software combines your PST files and keeps every folder in order.

  • Many Small PST FilesYears of archives sit in separate files and Outlook shows them as clutter.
  • Old and New MixANSI files from old Outlook must join a modern Unicode PST.
  • Two Accounts Into OneYou want mail and contacts from two profiles in a single place.
  • Duplicates After JoiningThe same message appears again after you copy folders by hand.
  • Locked PST FilesYou do not know the password of an old archive.
  • Space for BackupYou need fewer files before a move to a new computer.

Merge and Join

Combine folders or keep every file apart.

Duplicate Removal

Skip repeated items during the merge.

Locked Files Welcome

Merge locked PST files.

Outlook Optional for a New PST

PST Merge saves into a new PST file with no Outlook installed. Existing PST and Outlook profile output need a configured Outlook.

Free demo mode processes 15 items per folder on Windows and 10 on Mac.

2What changes?

What Changes After the Recovery?

Before

  • Dozens of scattered PST files
  • Duplicate emails after a manual copy
  • Hours of drag and drop in Outlook

After

  • One PST with every folder in place
  • Duplicates skipped during the merge
  • CSV report of merged and failed items

3What can it do?

Which Features Come With PST Merge?

Add the file, set your clues and recover the password from one window.

Merge Option

Combine like folders, for example many Inboxes into one Inbox.

Join Option

Keep a separate folder for every PST file in the output.

Duplicate Removal

Skip repeated mail, contacts, calendars, tasks, notes and journals.

Every Outlook Item

Process emails, contacts, calendars, tasks, notes and journals.

Password Protected PST

Merge locked files with no password needed.

Filters and Exclusions

Filter by item type and date range and leave out Deleted Items and Junk.

Three Output Choices

Save to a new PST, an existing PST or your Outlook profile.

CSV Report

Check merged, duplicate and failed items in a report.

Split Large Output

Cut the merged PST into parts by MB or GB.

4Is it easy?

How to Use PST Merge in 4 Steps

Test the software in the free demo. Buy the license when you want the full result.

  1. 1Download

    Install the Demo

    Download the installer and install it on your Windows or Mac computer.

  2. 2Add

    Add the PST Files

    Click Add File or Add Folder and select the PST files.

  3. 3Choose

    Select Merge or Join

    Choose the option and the output type.

  4. 4Combine

    Start the Merge

    Apply the filters and click Merge to combine the files.

Screenshots of every step sit in the PST Merge guide.

5What will I see?

Which Screens Does the Software Show?

Follow the path from the first screen to the finished result.

PST Merge main screen with the Add Files button and the Merge and Join options

Add Your PST Files

Load files or a folder and select Merge or Join.

PST Merge folder tree with output choices for the merged data

Choose the Output

Select folders and a destination for the merged data.

PST Merge completion report with the status of every PST file

Check the Report

Review the merge status of every file.

6Demo or full?

Free Demo vs Full Version

See where the free demo stops and what a license adds.

FeatureFree DemoFull Version
Merge and Join PST filesYesYes
Duplicate removalYesYes
Locked PST filesYesYes
Items processed15 per folderEvery item
PriceFreeFrom $39

7Will it fit my system?

System Requirements for PST Merge

Product Version7.1 for Windows and 3.0 for Mac
Download Size44.56 MB for Windows and 26.84 MB for Mac
Product TypeDesktop software that merges and joins Outlook PST files
Input FilesANSI, Unicode, archive, active, orphan and password protected PST files
OutputNew PST, existing PST or Outlook profile on Windows
Outlook VersionsOutlook 2000 to 2021 in 32 and 64 bit on Windows
WindowsWindows 11 in 64 bit, Windows 10, 8 and 7 plus Windows Server 2022, 2019, 2016, 2012 R2 and 2008
MacmacOS 10.8 up to macOS 15 on Intel and Apple Silicon
RAM and Disk Space4 GB RAM with 100 MB of free space
Pre RequisiteMicrosoft .NET Framework 4.5 on Windows. US region and English language on Mac
Demo Limit15 items per folder on Windows and 10 per folder on Mac

8What is the price?

How Much Does PST Merge Cost?

Choose the license by the number of computers. Prices are in US dollars.

Personal License

1 Computer

$39

  • Home and private use
  • 1 year of free updates
  • Unlimited 24x7 support
Buy Now
Business License

Up to 100 Computers

$199

  • One location in one country
  • 1 year of free updates
  • Unlimited 24x7 support
Buy Now
Enterprise License

Up to 500 Computers

$399

  • Offices in many places
  • 1 year of free updates
  • Unlimited 24x7 support
Buy Now
Refund requests are accepted for 30 days. Test the free demo first because software bought without a demo evaluation does not qualify. See the RecoveryTools refund policy for the full terms.

Mac edition licenses cost the same $39, $199 and $399. Buy the Mac edition license or download the Mac edition demo. See more savings on the RecoveryTools offers page.

9Is it safe?

Can You Trust the Software With Your Outlook Archive?

4.6
average rating out of 5 from 2,061 users

See Results First

Test the free demo on copies of your PST files and check the merged folders before you pay.

In Business Since 2007

RecoveryTools stands on a company that began in 2007 and now helps users in over 100 countries. Find more about RecoveryTools.

ISO Certified

Standards ISO 9001:2015 for quality and ISO/IEC 27001:2013 for information security back the company. See the awards and certifications page.

Terms in Plain Sight

Refund, privacy and usage terms are public before you pay. See the refund policy, privacy policy and terms of use.

10Need a hand?

Where to Get Help With Your PST Merge

Support engineers answer questions before and after you buy. Visit the RecoveryTools support center for phone numbers and more ways to get help.

Live Chat

Talk to an expert on live chat at any hour.

Email Support

Email support@systoolsgroup.com with your Outlook version and the PST file details.

Remote Session

An expert connects to your computer and solves a hard case for you.

Step by Step Guide

Follow the user guide for the load, preview and export screens.

11Still have a question?

Questions About Merging PST Files

How do I merge PST files into one?

Add the PST files, choose Merge and select where the merged data goes.

How is Join different from Merge?

Merge combines similar folders, for example several Inboxes into one. Join creates a separate folder for every PST file.

Can I merge PST files without duplicates?

Yes. Duplicate removal works on mail, contacts, calendars, tasks, notes and journals. Join does not remove duplicates.

Does the folder structure stay the same?

Yes. Folder hierarchy and seen or unseen status stay in place.

Can I merge password protected PST files?

Yes. Add the locked file and merge it with no password.

Can I merge ANSI and Unicode PST files?

Yes. Both types combine into a single Unicode PST.

Can I leave out Deleted Items and Junk?

Yes. Exclude those folders and filter by item type or date range.

Do I need Outlook installed?

No for a new PST file. Existing PST and Outlook profile output need a configured Outlook.

Can I merge a corrupt PST file?

Minor damage works. Repair a badly damaged file first with Outlook PST Recovery.

How do I check what was merged?

Save the CSV report of merged, duplicate and failed items.

What does the free demo do?

Windows demo processes 15 items per folder. Mac demo exports 10 items per folder. Full version processes every item.

Is there a Mac edition?

Yes. Mac edition 3.0 works from macOS 10.8 up to macOS 15 on Intel and Apple Silicon. Set the system region to United States and the language to English. Get the Mac edition demo or the Mac edition license.

How much does PST Merge cost?

Personal costs $39 for 1 computer. Business costs $199 for up to 100 computers. Enterprise costs $399 for up to 500 computers. Mac edition licenses cost the same.

Can I get a refund?

Yes. Refund requests are accepted for 30 days under the RecoveryTools refund policy. Software bought without a demo evaluation does not qualify. Email a signed Letter of Destruction to sales@recovery-tools.org. Bundle purchases cannot be refunded.

Merge Your PST Files With the Free Demo

Download the free demo, merge a few items and buy the license when you want the full archive.