Not Only Convert OST to PST, But Also Convert Into Many Other File Formats

OST Extractor Pro is an ultimate OST to PST converter tool that recovers emails,  tasks, journal items, notes, contacts, events, calendars etc from MS Outlook OST and convert OST to PST data file for Mac and Windows Microsoft Outlook. As Mac Outlook also import the same PST file as Windows Outlook. It can also converts OST files to Apple Mail Archive, Mozilla Thunderbird Mail, Postbox Mail, MBOX File (*.mbox) and EML File (*.eml).

How It Works

How to convert OST to PST and other file formats.

OST Extractor Pro is a professional tool to recover everything and convert OST to PST, MBOX, EML etc with accuracy and no data loss. It can convert OST to PST as well as other file formats extremely precise while dealing with complex data components like metadata, headers, and structure. Simple and powerful way to convert your OST data file. Try it today.

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User friendly Interface Accurate Conversion Safe and Secure Super Fast Conversion

Convert ost to pst for Win & Mac Outlook

Convert offline Outlook Data file (*.ost) from Outlook 2019, 2016, 2013, 2010, 2007, 2003, 2002, 2000, 98, 97 and ANSI OST file.


“OST Extractor Pro” – an unparalleled tool with a friendly interface packed with awesome features. Finally convert OST files to PST, Apple Mail, and many other formats with simplicity and accuracy, without getting overwhelmed.

Let go of the concerns of folder hierarchy loss, broken Unicode text, or other data loss errors. It runs on the meticulous algorithms that deliver 100% exhaustive conversion with no slipups. Available for both Mac and Windows!

Get OST Extractor Pro

Ultimate OST to PST Converter for Mac and Windows

The finest aspect of “OST Extractor Pro” is its interface. And how simple it makes the task of converting OST to PST or other formats. The tutorials below will show you step by step how you can begin converting files right away without any technical knowledge. The tool guides you along through its graphical interface and with clear-cut instructions. Whether you are basic home user with personal OST files for conversion, or an advanced user in some IT department of a corporation, you will find the procedure stunningly simple.

In spite of that, the tool does not compromise with the functionality. You also get multiple choices wherever applicable. An advanced IT user would benefit from the power and sophistication the tool brings to the surface, while never tramping on the simplicity.


Frequently asked questions (FAQ)

Here is the FAQ for OST Extractor Pro – a professional OST file converter for Mac and Windows.


Unable to convert my ost file as soon as I add it to convert on Mac, it is crashing?

It seems your OST file is on a NTFS formatted external drive. Please copy the OST file to a folder on Mac desktop and convert from there. It will convert as expected

I have a question. Where can I contact the support?

USL Software offers 24 x 7 tech support to assist you about any queries, problems, setbacks, etc. The team is friendly and quick to respond, and ensures full satisfaction with whatever you want help with. You can contact us via LIVE CHAT or email at helpdesk (at) uslsoftware (.) com.

Can I try it for free?

As with every other tool by USL Software, this one comes with a free trial version too. Go to the Download Now Page to download the setup, install it, and launch. It automatically begins in a trial mode, which allows converting ten items per folder. You can activate it later by registering for the license of your choice.

convert ost to pst

Does it support Unicode?

Yes, “OST Extractor Pro” has sharp algorithms for Unicode content, non-English text characters. It also includes Chinese, Japanese, and Korean, all with the double-byte characters.

Will my folders be in the same hierarchy?

Yes. Most users are often concerned about finding their folders misplaced after the conversion. But “OST Extractor Pro” has dedicated feature to scan the files and extract the data while fully retaining the original arrangement of your folders.

Does it convert the attachments?

Yes. OST files are used to store everything email-related, including actual emails, attachments, headers, and more. The tool ensures clean conversion with zero integrity errors. Not only does it convert the attachments, it also takes contacts, calendar, notes, journal items, tasks, images, and headers into account. The sophisticated scripts run deeper than any other converter and delivers thorough results.

Where can I use PST files generated by the tool?

PST is a proprietary open file format from Microsoft. It is natively associated with Windows Outlook but you can use it in Mac Outlook too. All Outlook versions (from 97 to 2019 version) are supported, including Exchange servers and Office 365. And for Mac Outlook, you can use it in both 2011, 2016, and 2019 version.

Does it convert large OST files?

Yes, it can handle large OST file with ease. If you have massive OST file to convert, you can load it up and convert it to PST or other desired formats without worrying about anything. It never freezes or hangs during large file conversion. Which makes it a suitable option for IT users in a company.

What all formats can it convert OST files to?

OST Extractor Pro” is a one-stop solution to convert Outlook OST files to many other formats. It can convert OST to PST, Apple Mail, Thunderbird, Postbox, MBOX, and EML Files. It can also convert the contacts and calendar from OST files to VCF and ICS Files, respectively.

Which version should I get? Mac or Windows?

The tool is available for both Mac and Windows. If you want to convert OST to PST, get the Windows version, unless you want to import output PST files to Mac Outlook. If are looking to convert OST to formats like MBOX or Thunderbird or Apple Mail, get the Mac version. The tool works equally well in any of the OS. Get anyone that you prefer. For using it on Mac, you need to move the OST files from Windows Outlook to your Mac computer.

ost to pst converter

ost to pst

  • 5
    …was too anxious about converting OST to PST files, mainly about data integrity faults. Grateful for ‘OST Extractor Pro’ that turned it into a breeze. Performed very well. Delivered accurate result. And was very easy to use. Chiefly, the data that I was anxious about was converted with precision, which I was very glad for.
    Teofila Crocker
  • 5
    I was looking for Mac version of OST to PST converter but didn’t find one easily. Then came across “OST Extractor Pro,” which is in fact a cross-platform tool for Mac and Windows. Got the trial version first, tried it, was very impressed, got the full version immediately after. Works on OST files with full command on the details and integrity. Highly recommended!
    Luis Vanamerongen
  • 5
    I found OST Extractor Pro to be immensely helpful. It works on large and bulk files with definite ease and poise. And particularly for me, the interface turned out to be simple and unassuming. From the initial stage of installing it to actually converting the files, everything was smooth and systematic. The best OST converter tool beyond doubt.
    Ivonne Chabbez
  • 5
    OST Extractor Pro is the only tool I found that allows converting OST files to many other formats, such as PST, MBOX, EML, and more. I was particularly struck by the very simple UI, considering it is also packed with some advanced-level features for IT users. Overall, it is a perfect fit for home and advanced users, which is quite impressive.
    Andres Motten
  • 5
    Had to convert OST to MBOX the other week and was bit panicking. But “OST Extractor Pro” worked beyond my expectations. It worked brilliantly well all through the process. I particularly want to emphasize and appreciate its simple interface and the tech support, which was friendly and quick to respond.
    Luvenia Brodish