Stellar – OST PST Converter

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Developed by ‘Stellar Information Technology’, ‘Stellar OST PST Converter’ is a reliable and efficient OST to PST conversion tool.

Stellar OST to PST file converter tool is one of the advanced tools to recover data from corrupted OST file. The software helps you to repair the damaged OST file from some severe OST file corruption. This OST to PST Converter is an ideal software for those who want to move Microsoft Exchange Server data or when their Exchange Server goes in non-function or dismounting stage.

Stellar OST to PST Converter is not just only a conversion software, but it also contains lots of other features such as splitting of converted files, compressing the files, preview of email etc. which makes it complete package of several useful tools.

It can restore emails, attachments, contacts, calendar items, notes, as well as restores the formatting of RTF and HTML messages included in OST file. The software also supports encrypted OST files for conversion.

The software safely converts all mail items of Offline folder (OST) file and saves them in new Outlook PST file, along with giving option to save as EML, MSG, RTF, HTML and PDF formats.

The software has build-in search mechanism, which automatically scan and find OST file on your computer, so you do not need to find location of OST file.


  • Risk-free conversion of emails, contacts, calendars, notes & Journals
  • Supports conversion of encrypted OST file to PST file
  • Free preview of emails & calendars before actual conversion
  • Save the converted emails in MSG, EML, RTF, HTML or PDF formats
  • Converts OST to PST up to 20 emails per folder for Free
  • Splitting of oversized Converted Files
  • Export PST file to Live Exchange Server
  • Save all Contacts in CSV File format
  • Mail Preview

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How to use

Locate OST file on your computer and follow below steps

Step 1: Launch the tool. In main screen click one of the available options:

  • Select Outlook File: When file name and location is known
  • Find Outlook File: When location is unavailable and filename is to be searched.

stellar ost to pst

Step 2: Find Mailbox screen pops up when Find Outlook File button is clicked:
Select the Drive from drop down menu as available in Look in tab and Select the File Type.
Check ‘Search Subfolders’ checkbox and Click on ‘Start’ button.

stellar convert ost pst

Step 3: After selecting the OST file, click on Scan Now button to initiate scanning.

stellar ost pst conversion

Step 4: Following screen shows the progress of Scanning File option. Time of scan is directly proportional to the file-size. Stop scanning the file by clicking on Stop button.

stellar ost file to pst file

Step 5: A preview of mailbox is available on the screen after the complete scan.

  • Left Pane shows All Mailbox Folders
  • Middle pane shows the items of a particular folder
  • Right Pane shows the contents of a particular item

stellar ost file converter

Step 6: A pop-up screen appears with options to save the file. Select the location with Browse button. Check box for PST to save converted OST file into PST format or check other desired format.

stellar ost recovery tool

Step 7: Status Bar reflects the status of saving of PST file.

stellar ost pst convert

Step 8: A pop-up appears to show the PST is saved

  • At the preferred location
  • Converted file size

stellar ost conversion


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Pros and cons

  • Conversion is quicker as compared to other softwares
  • No file limit
  • Reliability
  • Customer support by Email and Phone
  • Supports multiple formats as input and output
  • Import/Export
  • Excellent customer reviews
  • Extra features like file splitting and compression

  • Extra features like file splitting, CSV export not available in Corporate version
  • Cannot convert multiple OST files simultaneously

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Free Download

The free version comes with all basic functionalities. You can convert OST to PST up to 20 emails per folder in free version.

Free Download
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Buy Now

The three paid variants are available as follows:

License Type Features Price Buy Now


  • For Single System
  • Lifetime license
  • Free lifetime customer support
  • No file size limitations
$99 $90use coupon:myGiz Buy Now


  • For Multiple Systems
  • Lifetime license
  • Free lifetime customer support
  • No file size limitations
  • Split and compress file
  • Export contacts to CSV


Buy Now


Bundled with ‘EBD to PST file converter’

  • For Multiple Systems
  • Lifetime license
  • Free lifetime customer support
  • No file size limitations
  • Split and compress file support
  • Export contacts to CSV, EDB to PST conversion


Buy Now

Open API
Auto notification
CRM integration
Data import/export
Simple SignOn
Social integration
Device supported
Mac OS
Windows phone
Pricing model
Monthly payment
One-time payment
Annual subscription
Deployment type: ~
Customer type
Small business
Large enterprises
Medium business
8.3 Total Score

High performance, quickness, reliability, amazing extra features, lifetime technical support, good customer reviews are reasons to buy Stellat OSt PSt converter tool. Nothing wrong with this software except it does not support simultaneous conversions of multiple OST files. But that's not a deal breaker certainly. Another important thing is additional features are not available in corporate version. They have three variants of software but except bundle version other two lacks some features. So check price structure before buying. It is an excellent software which deserves a try. But check which functionality you need and then select the version to buy. To check performance you can try free version. According to user reviews this software is strongly recommended. But only buy, if it meets your requirements.

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