MBOX file is a very common file format used by different emailing applications to store its data. Mainly they are used by Thunderbird in Windows and Apple Mail in Mac. Thus, if you want to switch from Outlook to other MBOX supporting applications then it is necessary to convert Microsoft Outlook data file into MBOX file format. For doing this, OST to MBOX converter can help you; which also provide the option to convert OST into PST file format.

  • Convert large OST files into MBOX file format
  • Complete data migration of OST file into MBOX file
  • Keeps the folder structure of OST file intact
  • Convert OST to MBOX as well as PST, EML and MSG
  • Open converted MBOX file in Thunderbird, Apple Mail etc.
  • Read orphan or inaccessible OST file and convert it to MBOX


Current Version: Version 2.0

Last Updated: 30th Aug 2022

100% Safe and Secure

All Features of OST to MBOX Converter

Convert OST File into MBOX

OST to MBOX converter is a simple yet powerful tool to convert multiple OST files into MBOX file format. You can create one MBOX file from an OST file with utmost ease using OST to MBOX converter.

Export Complete OST File Data

OST to MBOX converter is designed to read complete data present within the OST file and migrate it to MBOX file format without any data loss. Export emails, contacts, calendars etc. present in the OST mailbox to PST.

Maintains the Folder Struture

Folder hierarchy of any data file is very important and OST to MBOX converter ensures to migrate the data by maintaining the correct folder structure. The tree format of the folders in OST will remain intact during OST to MBOX migration.

Convert OST to Other Formats

Magus OST converter is an all in one solution which not only convert OST file into MBOX but also has the option to convert OST to EML, MSG, PST etc. file formats too.

Open MBOX file in Thunderbird

Once the OST to MBOX converter creates a .mbox file, you can easily open it in various applications that supports MBOX file format like Thunderbird, Apple Mail etc.

Convert Orphan OST to MBOX

If your OST file is orphan or inaccessible or corrupt then software is smart enough to read such files and convert it into MBOX file format without hassle. This way you can recover OST file data and save it to MBOX.

Convert Large OST File to MBOX

OST file contains MS Outlook profile data and usually are very large in size. That is why Magus OST to MBOX converter is designed to smoothly read large OST files and convert them to MBOX file quickly.

Open & Convert Independently

OST to MBOX converter is designed to perform conversion independently. This means you do not need to have MS Outlook or any other application installed in your PC to convert OST to MBOX format.

System Requirements

Know what all you need to use Magus OST to MBOX Conversion Tool

Trial Version:

The trial version of Magus OST to MBOX Conversion Tool will let you convert only 10 items from each folder of OST file. For complete unlimited conversion you have to purchase the full license version.

System & Hardware Requirements
  • Minimum 512 MB RAM
  • Minimum 200 MB of free Hard disk space
  • Processor: Pentium Class
Compatible with Windows PC:
  • Windows Vista (32 and 64 bit) SP1
  • Windows 7 (32 and 64 bit)
  • Windows 8 (32 and 64 bit)
  • Windows 10 (32 and 64 bit)
Compatible with MS Outlook:
  • Microsoft Outlook 2003® SP3
  • Microsoft Outlook 2007® SP2
  • Microsoft Outlook 2010® (32 and 64 bit)
  • Microsoft Outlook 2013® (32 and 64 bit)
  • Microsoft Outlook 2016® (32 and 64 bit)
  • Microsoft Outlook 2019® (32 and 64 bit)
  • Microsoft Outlook 2021® (32 and 64 bit)

Screenshots OST to MBOX Converter

Personal License

Business License

Enterprise License




Single User License

Suitable for upto 2 users / machines

24x7 free lifetime technical support

Lifetime free product upgrade

Multiple User License

Suitable for 2+ Users / Small business

24x7 free lifetime technical support

Lifetime free product upgrade

Enterprise User License

Suitable for big companies or organizations

24x7 free lifetime technical support

Lifetime free product upgrade

Buy Now

Buy Now

Buy Now

Frequenly Asked Questions

Q:Can i convert entire OST file at a time?

A:Yes, you can convert complete OST file data in one go using OST to EML converter.

Q: I have multiple OST files, can i convert all of them together?

A: No, currently the tool does not support multiple OST files conversion at a time. You have to convert one OST file at a time to avoid data loss and conversion errors. However, you can use the OST conversion tool multiple times to convert as many OST files as you want into MBOX file format.

Q: Is there any limitation on OST file size?

A: No, the software does not impose any limitation on OST file size. Smoothly convert huge OST files of any size into MBOX with OST to MBOX converter.

Q: Can i import the converted MBOX file to my Apple Mail in Mac machine?

A: Yes, you can open the MBOX file into Apple Mail in your MAC. But you need to peform the OST to MBOX conversion in a Windows PC.

Q: How can i import Google Takeout to MS Outlook?

A: For this you can read how to import Google takeout take away to Outlook. For this, you need to export Google Takeout takeaway into PST format and import PST into Outlook via import/export wizard.

Q: How can i import MBOX file created by your tool in Apple Mail?

A: Yes, the software create .MBOX file which is compatible with every application that reads .mbox file format. You can use it in Apple Mail, Thunderbird, SeaMonkey, Mutt Mail, Mailspring etc.