Best OST to PST Converter for Converting Offline OST to PST

Summary: List of best ost to pst converters available to convert inaccessible OST file to PST format so that you can access email data by importing PST file to Outlook.

A large number of individuals and professionals use Microsoft Outlook for effective communication. It provides a number of extra features like calendars, journals, tasks, notes, contacts, etc. with basic functionalities. MS Outlook can be used in conjunction with Exchange Server in an enterprise or as a standalone application by individuals.

When Outlook is used with Exchange Server it creates an Offline Storage Table (OST) file which is the replica of Exchange Server mailbox and stored locally on the user’s system. It is used when the connection to the Exchange Server is offline, one can create or read emails offline. The changes made during the period are synced to Exchange server database once the Exchange Server connection is available.

When an employee leaves the organization and needs to take his emails and contacts with him. He simply copies the OST file and takes it with him without knowing the fact that the OST file can be opened only with the profile which has created it. Microsoft doesn’t provide any solution for accessing the contents of this kind of OST file. In such cases, a third-party OST to PST Converter is required to convert this orphaned OST file to PST. Today in this article I will let you know about a few Best OST to PST Converter software available in the market.

 1. Stellar Converter for OST

stellar ost to pst converter

It is one of the Best OST to PST Converter tool which easily converts all objects of an OST file to their corresponding items into a newly created PST file. You can preview email items in a tree view structure. It also supports the latest version of MS Outlook and Exchange Server.  Stellar OST to PST tool makes sure the items converted to OST file are safe for work i.e converted items are free from any errors. You can also save the recovered items to the desired location with this software. This software supports the conversion of encrypted OST files to PST format also. It also supports saving recovered items to EML, HTML, RTF, MSG, or PDF format also.

  • The best part of Stellar OST to PST tool that it provides free conversion of 20 mails for each mailbox.
  • Data can be exported from encrypted OST File

Pricing and License Details of Stellar PST Repair

The tool is available in three versions as given in the table

Details Professional Technician
Price $69 $199
Installation and Usage Single System Multiple System
License Lifetime Lifetime
Export PST to 365 No Yes
Split/ Compact PST No Yes
Batch Conversion No No
Merge PST No No
OST to PST No No

2. Kernel for OST to PST

top ost to pst converter kernel

Kernel for OST to PST Converter can be an option too if you want to convert the OST file to PST format. It intelligent search facility allows user to search for individual items in OST file for conversion. The two scanning modes namely Standard and Advanced make it sure all errors from OST files are removed and recovered items are saved to newly created PST files. One can also save recovered OST items to MSG, HTML, EML and RTF format.

  • It is very easy to use and converted file can be exported to Office 365 directly
  • The tool also comes with a PST splitter


Details Personal Use Home Corporate Use Technician
Price $69 $99 $199 $299
Validity 1 year Lifetime Lifetime Lifetime
Installation Only 1 System Unlimited Unlimited Unlimited
Save to Server No No Yes Yes
Save to Web Emails No No Yes Yes
Batch Conversion No No No Yes

3. Systools OST to PST Converter

Systools OST to PST Converter is by far the best OST to PST tool among all as compared to features offered. While most of the OST Converters don’t allow to do the batch conversion in the basic version of the tool Systools allows users to convert OST to PST in batch by adding multiple OST files at once. The other good feature which it offers in the basic version is saving the OST file to PST, MSG, EML or HTML format. The cost of a basic version of OST to PST Converter from Systools is $49 only 

Details Personal  Business Enterprise
Price $49 $199 $299
Validity Lifetime Lifetime Lifetime
Tech Support Limited Unlimited Unlimited
Import OST to Office 365 Yes Yes Yes
Split Large File Yes Yes Yes
Batch Conversion Yes Yes Yes


4. Datanumen Exchange Recovery

datanumen ost to pst tool

Also known as Advanced Exchange Recovery is the leader in converting OST file to PST. The recovery rate of this software is much higher than other software available. It supports the recovery of large OST files up to 16777216 TB size. Splitting of recovered PST files is also possible with this software.

  • Recover Data from orphaned or damaged OST File
  • PST file created can be stored on a network-attached drive


Details Description
Price $200
Utility Use as a Forensic Tool
Recovery From MDF, NRG, VHD, BKF, ISO File
Recovery Rate 96.78%
Comes As Exchange Recovery

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