25% Off SysTools OST Merge Coupon Code Jun 2026

SysTools OST Merge helps users combine multiple Outlook OST files into one file with options to join OST files, merge folders, or merge contacts only. It supports ANSI and Unicode OST files, duplicate removal, deleted item exclusion, and PDF or CSV reports.

Verified for Jun 2026 by Chris: Get an instant 25% OFF SysTools OST Merge. Apply coupon code WI***25 at checkout to claim your discount.
SysTools OST Merge

SysTools OST Merge

Personal License | 1 Year Free Product Updates

−25%
$29.25$39
Bundle Offer - SysTools OST Merge + PST Merge

Bundle Offer - SysTools OST Merge + PST Merge

Personal License | Run on one machine | No refund

−25%
$58.50$78
  • 100% Safe and Secure
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25% Off SysTools OST Merge Coupon Code Jun 2026 1
SysTools OST Merge
25% Off SysTools OST Merge Coupon Code Jun 2026 2

Key Features

  • Process both Unicode and ANSI data types simultaneously.
  • Filter out duplicate entries and exclude deleted items to keep your storage clean.
  • Skip emails from specific senders during the integration process.
  • Password-protect the newly created output file for added security.
  • Automatically split the output if it exceeds your preferred file size limit.
  • Add the final integrated file directly to your active Microsoft Outlook account.
  • Generate detailed migration reports in either PDF or CSV format.
  • Load data in bulk using the “Add Folder” option or select individual items via “Add File”.

Pros & Cons

PROS
  • No 2 GB OST file size restriction.
  • Supports bulk OST file merging.
  • Can merge contacts only.
  • Supports both Unicode and ANSI OST files.
  • Compatible with Outlook versions from 2003 to 2021.
CONS
  • Microsoft Outlook must be installed and configured.
  • Windows-only software.
  • Requires .NET Framework 4.5.

More SysTools OST Merge screenshots:

select systools ost merge
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filter systools ost merge
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Where can I find valid promotional codes for SysTools OST Merge?

You can always find verified deals, active promos, and the latest offers right here on WinningPC, alongside any discounts hosted on the official developer’s website.

How much can I save on this software right now?

Currently, the biggest markdown available is a 25% OFF discount across all license types when you use the active offers listed on our WinningPC page.

Does SysTools OST Merge remove duplicate emails?

Yes, it includes a built-in “Remove Duplicates” feature to ensure your final output remains clean and free from repeated entries.

Can I combine just my address book instead of the whole mailbox?

Absolutely. The “Merge Contacts” mode is specifically designed to integrate only contact items while keeping all their original meta properties intact.

Is there a file size limit when adding my data?

No, there is no 2GB limitation or any other restriction on the size or quantity of the items you wish to process.

Will my deleted folders be copied over?

Not unless you want them to. You have the option to exclude the “Deleted Items” folder to speed up the process and save hard drive space.

What happens if my final output becomes too large?

SysTools OST Merge provides a splitting facility that can automatically divide the final file if it exceeds your desired storage limits.

How do I check the results after the process finishes?

The tool gives you the option to generate a detailed migration report in either PDF or CSV format so you can thoroughly review the results.

FeatureSpecifications
Language SupportEnglish
Operating SystemWindows 11, 10, 8.1, 8, 7 (32/64-bit) & Windows Server 2008 / 2012 / 2016 / 2019
ProcessorIntel Core 2 Duo CPU E4600 @ 2.40GHz
RAM & StorageMinimum 4 GB RAM / Around 100 MB free hard disk space
Supported InputMultiple OST files (Unicode & ANSI)
Supported OutputMerged OST / PST file
PrerequisitesMicrosoft Outlook and .NET framework 4.5 must be installed
9Expert Score
Very Good

SysTools OST Merge is worth considering if you regularly handle multiple Outlook OST files and want a controlled way to combine them without manually sorting folders. Its strongest points are the three merge modes, duplicate removal, contact-only merging, and report generation. The main drawback is that Outlook must be installed and configured, so it is not a standalone recovery-style tool.
(Review by Chris Bruner – tech writer and software reviewer at WinningPC)

Overall
9
Functionality
8.8
Ease-of-use
8.5
Customer Support
9.2
5/5 - (268 votes)

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Chris Bruner
Chris Bruner

Chris Bruner is a Senior Software Reviewer at WinningPC with a strong background in software analysis and technical writing. He has spent 5+ years testing applications across various categories, including antivirus, multimedia, and backup tools, providing readers with objective, in-depth insights. Chris’s reviews stand out for their accuracy, transparency, and real-world testing approach, making them a trusted resource for both beginners and tech-savvy users. Beyond reviewing software, Chris works closely with developers to secure exclusive coupons, ensuring users get authentic discounts on premium tools.

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