Did you know? Over 35% of Outlook users experience OST file issues every year. In 2025, securing your data with a reliable OST to PST Converter is more important than ever because OST file corruption can strike your data anytime!

However, the introduction of new tools makes it difficult to find the right software for yourself. Thus, we present the Top 10 OST to PST Converter Software for 2025, which we have carefully reviewed. With the detailed comparison, you can pick your ideal match without any confusion.

Why Do You Need a Reliable OST to PST Converter?

Automated tools help you avoid the limitations of manual solutions and provide better assistance when you:

• Recover lost, orphaned, or corrupted OST files.
• Need to save selective data at your desired location.
• Migrate mailbox data safely to new Outlook profiles.
• Backup crucial email data into different formats.
• Look to meet business compliance and data portability needs.

Top Picks: Best OST to PST Converter Tools for 2025!

Here is a sequential list of the best tools of 2025 for OST file data recovery. Go through them to find the most suitable one for yourself.

1. Recoveryfix OST to PST Converter Tool

Recoveryfix OST to PST Converter is an excellent choice for users who are looking for fast, secure, and error-free recovery of their Outlook data.

Unique Features:

• Batch conversion of multiple OST files.
• Integrated with smart data filtering options.
• Allows to split large PST files during conversion.
• Supports direct migration to Office 365.
• Retrieves deleted and orphaned mailboxes.

Pros:

• Converts oversized and corrupted OST files smoothly.
• Maintains folder hierarchy and original metadata.
• Supports all versions of MS Outlook and Windows OS.
• Provides a detailed preview of entire OST mailbox.
• Quickly scan and convert OST files data.

Cons:

The trial version has limited saving capabilities. Large files may need powerful hardware. Does not support the Mac Operating System.

2. Kernel for OST to PST Converter

Kernel for OST to PST Converter ensures complete recovery of OST files with advanced repair features even in highly corrupted scenarios.

Unique Features:

• Instant preview of emails, contacts, calendars, etc.
• Exports OST to PST, MBOX, EML, MSG and other formats.
• Repairs even password-encrypted OST files.
• Save data directly to live Exchange and Office 365.
• Advanced sorting filters for select data migration.

Pros:

• Recovers severely corrupted files without data loss.
• Easy folder mapping while exporting mailboxes.
• Export multiple mailboxes simultaneously.
• Highly intuitive and user-friendly dashboard.
• Automatic log generation after conversion.

Cons:

• Premium pricing may not be suitable for individual users.
• First-time users may take longer to navigate settings.
• Compatibility with the Mac Operating system is missing.
• The installation size of the software is slightly heavy.

3. Zook OST to PST Converter

Zook OST to PST Converter provides a one-click solution to access your precious mailbox items without an Outlook application.

Unique Features:

• Keeps the original folder hierarchy.
• Lightweight tool for quick conversions.
• Single-click conversion process.
• Supports all Outlook versions.
• Preserves email formatting and properties.

Pros:

• Easy to operate for both beginners & experts.
• Quick and direct conversion of OST files.
• Keeps attachments and inline images intact.
• Add OST files without any size restrictions.
• A free demo version is available for users.

Cons:

• No advanced recovery for heavily corrupted files.
• Does not support data export to cloud platforms.
• No support for Mac devices.
• The selective mailbox export option isn’t available.

4. Regain OST to PST Converter

Regain OST to PST Converter software is known for turning inaccessible, damaged, or orphaned OST files into clean PST files quickly and efficiently.

Unique Features:

• Dual scanning modes: Standard & Advanced.
• Converts encrypted OST files into PST formats.
• Date-based filter for selective data export.
• Recover all deleted Outlook items.
• Generates migration reports post-conversion.

Pros:

• Fast file processing even for large-sized OST files.
• Convert password-protected files smoothly.
• Recover permanently deleted mailbox items.
• Simple interface suitable for non-technical users.
• Provide 24/7 customer support and assistance.

Cons:

• Direct Office 365 migration isn’t possible.
• Does not split PST files automatically.
• Mac version of the software is unavailable.
• Limited saving formats compared to peers.

5. DRS OST to PST Converter

DRS OST to PST Converter offers safe, flexible, and effective OST recovery with added features like duplicate item removal.

Unique Features:

• Convert OST files to multiple email-supported formats.
• Comes with smart duplicate email remover feature.
• Preview mailbox items before saving them.
• Export data to Gmail, Yahoo, and other platforms.
• Save the recovered data in multiple formats.

Pros:

• Support recovery of corrupted and encrypted OST files.
• Allows export of selective mailbox folders.
• Preserve metadata and structure during recovery.
• Quick filter options for efficient migration.
• Support drag-and-drop functionality.

Cons:

• Advanced features are locked in paid versions.
• The user interface could be more interactive.
• No support for the Mac Operating system.
• Slow loading of large files in preview wizard.

6. MailsDaddy OST to PST Converter

MailsDaddy is reliable software that provides a secure and fully automated conversion experience for OST to PST with a smart mailbox preview.

Unique Features:

• Recover damaged and orphaned OST files.
• Convert OST files to PST, MSG, MBOX, EML, etc.
• Split large PST files into smaller ones.
• A batch conversion feature is available.
• Advanced search and preview options.

Pros:

• Free trial version available with mailbox preview.
• No Outlook dependency for file conversion.
• Support recovery of encrypted OST files.
• Maintain non-English characters of data.
• The software has a very lightweight setup file.

Cons:

• Price is slightly higher for individual users.
• Doesn’t support the Mac Operating system.
• Lacks automated scheduling feature.
• Complex folder structure might need manual adjustment.

7. Cigati OST to PST Converter

Cigati OST to PST Converter software offers a wide range of output formats and direct cloud migration options.

Unique Features:

• Exports OST files into PST, EML, PDF, MBOX, etc.
• Migrate data directly to Gmail, Yahoo, & Office 365.
• Split oversized PST files in just a few clicks.
• Remove duplicate emails automatically.
• Advanced email filtering based on date and folder.

Pros:

• Support multilingual user interface.
• Save mailboxes directly on cloud platforms.
• Smart and lightweight application.
• The trial version offers free migration of 50 emails.
• Handle large OST files smoothly and efficiently.

Cons:

• Beginners might need to learn about software.
• Heavy cloud migration needs stable internet.
• Limited technical support for free users.
• Mac Operating system support is partial.

8. MSOutlook OST to PST Converter

This simple yet powerful tool helps you restore inaccessible Outlook data with minimal effort and gives maximum results.

Unique Features:

• Recover entire mailbox content securely.
• Maintain email hierarchy after data export.
• Handle OST file corruption with ease.
• Support password-protected OST files.
• Retain attachments, contacts, calendars, etc.

Pros:

• Simple-to-use and clean interface.
• Recover data without Outlook installed.
• Lightweight software with fast installation.
• Lifetime software updates are available.
• Add OST files without any file size restriction.

Cons:

• The cloud mailbox export feature is missing.
• Provides basic feature when compared to its rivals.
• Does not provide split or merge feature.
• Not compatible with the Mac Operating System.

9. eSoftTools OST to PST Converter

eSoftTools provides a dynamic and quick OST recovery platform that easily handles encrypted and oversized OST files.

Unique Features:

• Convert OST files to PST, MBOX, EML, and MSG.
• Smart email date filters for selective conversion.
• Supports batch conversion of OST files.
• Show the detailed preview of mailbox items.
• No Outlook installation is required.

Pros:

• Support conversion of password-protected OST files.
• Quick file scanning engine for immediate results.
• The dashboard is easy to navigate for all users.
• Support selective OST file recovery.
• Compatible with all major Outlook versions.

Cons:

• User interface could be modernized.
• Split PST option isn’t available.
• Free trial version saves limited data.
• Doesn’t support the Mac Operating system.

10. Mailvita OST to PST Converter

Mailvita provides Mac users a simple and reliable solution to easily convert, repair, and migrate their OST files.

Unique Features:

• Work with Mac and Windows platform.
• Maintain complete mailbox hierarchy.
• Provide different multiple saving options.
• Easy mailbox management via drag-and-drop.
• Accurate folder mapping with high-end algorithms.

Pros:

• Compatible with the Mac Operating system.
• Preserve attachments and inline images.
• Minimalist and intuitive user interface.
• Handle password-protected OST files.
• Secure installation and data handling process.

Cons:

• Limited options for data export.
• Slow speed with large OST files.
• Direct mailbox export to the cloud isn’t possible.
• The free version restricts saving of mailbox items.

Conclusion

The blog has provided you with a detailed comparison between the best software of 2025 for OST to PST conversion. By using the provided information, you can easily choose the right OST to PST Converter tool and secure your important emails, contacts, and calendar data.

Whether you’re a business professional or IT admin, the right tool can save you time, effort, and most importantly, your precious data. Each of the top 10 tools listed here has its own strengths, but the final choice depends on you.

If you ask us, we will likely go with Recoveryfix OST to PST converter software as it comes with effective benefits and an easy-to-use interface.