Top 10 OST to PST Converter Tools in 2025

Introduction

In 2025, managing Outlook data efficiently has become essential for professionals and businesses alike. Many users face problems accessing OST files when Outlook or Exchange Server crashes. In such situations, converting OST files into PST format is the best solution. A reliable OST to PST converter helps users restore mailbox items like emails, attachments, contacts, calendars, and more without data loss.

To make your choice easier, we’ve compiled a list of the Top 10 OST to PST Converter tools in 2025. Let’s explore their features, pros, and cons.

Best Overall OST to PST Converter in 2025

1. MailsDaddy OST to PST Converter

Overview:

The MailsDaddy OST to PST Converter is an advanced and professional solution to convert OST files into PST, EML, MSG, MBOX, and other formats. It handles both corrupted and encrypted OST files easily while preserving folder hierarchy and metadata.

Key Features:

• Converts all OST items: emails, contacts, calendars, notes, etc.
• Supports offline, orphaned, and encrypted OST files.
• Provides a live preview before conversion.
• Exports OST directly to Office 365 and Live Exchange.
• Compatible with all Outlook and Windows versions.

Pros:

1. Fast and accurate conversion speed.
2. Simple and user-friendly interface.
3. Free preview of entire OST data.
4. Supports batch conversion.
5. Option to save selective data.

Cons:

1. Free demo converts only 20 items per folder.
2. No Mac version currently.

Verdict: MailsDaddy OST to PST Converter offers the most reliable, secure, and feature-rich solution for individuals and enterprises.

2. Stellar Converter for OST

Overview:

Stellar Converter for OST is another well-known software for Outlook data recovery. It converts OST files into PST and other file types efficiently.

Pros:

1. Supports large OST files.
2. Easy-to-use interface.
3. Converts encrypted OST files.
4. Offers advanced search filters.
5. Provides email preview.

Cons:

1. Bit expensive for single users.
2. Conversion takes time for large files.

3. Kernel for OST to PST Converter

Overview:

Kernel OST to PST Converter is a robust tool that repairs and converts OST files to PST without Outlook dependency.

Pros:

1. Recovers deleted and corrupted OST items.
2. Saves data to PST, EML, MBOX, and Office 365.
3. Maintains folder structure.
4. Works without Exchange Server.
5. Fast scanning mode.

Cons:

1. Interface looks outdated.
2. Free version limits data export.

4. SysTools OST to PST Converter

Overview:

SysTools OST to PST Converter is a professional-grade tool used by IT experts and organizations for safe migration.

Pros:

1. Converts large OST files efficiently.
2. Offers date and category filters.
3. Supports bulk conversion.
4. Maintains original email formatting.
5. Works offline.

Cons:

1. Slightly complex for non-technical users.
2. Free demo limits export.

5. Shoviv OST to PST Converter

Overview:

Shoviv is known for its quick OST recovery and multiple export options.

Pros:

1. Converts OST to PST, EML, and MSG formats.
2. Allows preview before saving.
3. Processes multiple OST files simultaneously.
4. Supports direct migration to Office 365.
5. Reliable customer support.

Cons:

1. Requires stable system performance.
2. Interface could be more modern.

6. Aryson OST to PST Converter

Overview:

Aryson offers a simple and secure solution for OST to PST conversion suitable for both personal and enterprise use.

Pros:

1. Converts OST files of any size.
2. Supports multiple file formats.
3. Compatible with all Outlook versions.
4. Option to export selective items.
5. Provides a preview feature.

Cons:

1. Limited free trial.
2. Conversion speed can slow with huge files.

7. Softaken OST to PST Converter

Overview:

Softaken is a lightweight but efficient software for OST to PST migration.

Pros:

1. Easy installation and operation.
2. Maintains all meta properties.
3. Supports bulk OST conversion.
4. No Outlook dependency.
5. Provides free demo version.

Cons:

1. Interface looks basic.
2. No live chat support.

8. Cigati OST to PST Converter

Overview:

Cigati offers a versatile OST converter tool designed for professional and home users alike.

Pros:

1. Converts OST to PST, MBOX, and PDF formats.
2. Simple UI for beginners.
3. Supports selective conversion.
4. Compatible with latest Outlook versions.
5. Maintains folder hierarchy.

Cons:

1. Limited features in trial.
2. Slightly slower for large OST files.

9. BitRecover OST to PST Wizard

Overview:

BitRecover OST to PST Wizard is an advanced and secure conversion tool for all types of OST files.

Pros:

1. Converts damaged OST files easily.
2. Saves emails with attachments.
3. Works offline.
4. Easy navigation.
5. Supports bulk conversion.

Cons:

1. No real-time progress indicator.
2. Slightly high pricing.

10. Advik OST to PST Converter

Overview:

Advik OST Converter tool helps users migrate OST data into various formats and email platforms.

Pros:

1. Supports multiple export formats.
2. Allows selective conversion.
3. Simple and neat interface.
4. Compatible with latest Windows OS.
5. Maintains data integrity.

Cons:

1. Slower preview loading.
2. Basic UI design.

Why MailsDaddy OST to PST Converter is the Best in 2025

Among all the tools listed above, MailsDaddy OST to PST Converter stands out as the most powerful, user-friendly, and reliable solution. Its speed, accuracy, and advanced features make it ideal for both individuals and IT professionals. The software provides seamless migration from OST to PST and supports multiple output formats like MBOX, EML, MSG, and Office 365 migration.

Here’s why it’s the best:

• Handles corrupted, orphaned, and encrypted OST files.
• No data loss or alteration during conversion.
• Maintains folder hierarchy and metadata perfectly.
• Batch conversion with complete mailbox preview.
• Affordable pricing with lifetime license option.

Final Words

Choosing the right OST to PST Converter can save you hours of effort and prevent data loss. While all tools listed above are reliable, MailsDaddy OST to PST Converter leads the market with its accuracy, speed, and simplicity. If you want a smooth, error-free, and secure way to convert OST to PST, MailsDaddy is the ultimate choice in 2025.

Also Read: Effective Method to Convert OST to PST without Outlook