MailsDaddy vs Stellar vs SysTools: Best MBOX to PST Converter Compared (2025)

When doing MBOX to PST conversion for an organization or individual, you should focus on the top 3 or 5 MBOX to PST converter tools. It is true that there are many popular applications available, but using the most popular applications should be the top priority because they have already been tested by many users and companies.

Here I have selected the best 3 MBOX to PST converter tools to convert your mailbox from different email clients like Apple Mail, Thunderbird, Gmail, etc. These applications are very easy to install and use on Windows operating system. You can also download the free demo first and transfer a few emails from each folder.

MBOX to PST Converter Comparison Review (2025)

MailsDaddy MBOX to PST Converter

With the top user rating, it is the best choice for exporting mailbox from MBOX to PST format. It has various features compared to other applications in online market. Allow exporting mailbox into Office 365, EML, MSG, PST etc.

Pros:

• Simple, clean UI — great for beginners
• Supports over 20+ MBOX email clients (Thunderbird, Apple Mail, etc.)
• Preview emails before conversion
• Advance search window to filter emails and export into desire mail formats.
• No Outlook installation required
• Bulk export and split PST features available
• Create single or separate PST file

Cons:

• Free version limits export (20 items/folder)
• Does not export in PDF.

Best for:
Small, mid and large businesses, and users looking for affordable, fast conversion with no technical complexity.

Stellar Converter for MBOX

This application is fast but expensive to export MBOX to PST format. User can need little experience to operate the solution and transfer MBOX to PST, Office 365, EML etc.

Pros:

• Trusted brand name with enterprise reputation
• Batch conversion supported
• Rich preview and filter options
• Supports import to Office 365 (in premium version)

Cons:

• Heavier software – more resource-intensive
• Free version allows preview only — no saving
• Higher price point for full features

Best for:
Corporate users, IT admins, or users needing  to change mailbox into Outlook and Cloud interface.

 SysTools MBOX to PST Converter

This classic solution comes with some advance option to migrate MBOX file to Outlook PST format. It also manages internal and external folder structure in the resultant PST file.

Pros:

• Simple UI with solid MBOX compatibility
• Supports selective export
• PST splitting and date filtering options
• Supports all MBOX-based email client files.

Cons:

• Slower performance with very large files
• Slightly outdated interface
• Outlook required for previewing in some cases

Best for:
Technical users or admins looking for custom export controls and stability.

Comparison table

Final Verdict

Above i have described top 3 MBOX Converter tool to convert your mailbox in Outlook PST format. Choose MailsDaddy for easy, fast and budget-friendly use; Stellar if you need qualified solution; and SysTools for a more technical approach with advanced control.

All applications comes with the trail version so you can also analyze the software functionality and steps by converting some mailbox from each folder.