Top 5 Best OST to PST Converter Tools of 2023

  •   Written By
  • Published on
    February 18th, 2019
  • Updated on
    January 3, 2023
  • Read Time
    7 minutes
Rate this post
Summary:- There are a lot of software available in the market that converts an OST file to a PST file online. But choosing the best software is a difficult part. The OST to PST Converter is an exceptional tool that exports multiple offline OST files to Outlook PST format.  Therefore, here we have discovered the best 5 OST to PST Converter tools of 2023, which is reviewed by our expert team. They have evaluated the performance, conversion speed, and user interface of these top-rated OST PST Tools.

Situations when you Need the Best OST PST Converter

To know what the OST file does, it contains all your mail items in an offline mode on your hard drive. Every time you log in to your MS Outlook account, all the mail items are synchronized and downloaded. These OST files work in synchronization with the MS Outlook PST file. It helps in keeping the Outlook mailbox up-to-date with new emails, meeting requests, delivery reports, etc.

However, there are situations when such mail items sometimes become inaccessible due to some errors and problems. In such a situation, you need to convert emails in the OST file into a different Outlook-compatible file format like PST.

  • When the Exchange server stops working
  • When the Exchange server is under maintenance
  • In case you need to migrate data from OST to PST
  • Due to errors like:

Error 1 -‘Your offline folder file could not be configured.\\ComputerName\FolderName\Outlook.ost.’

Error 2 -‘The operation failed due to a registry or installation problem. Restart Outlook and try again. If the problem persists, please reinstall.’

Some of the reasons for OST file corruption are:

  • Issues related to Software
  • Unexpected hardware failures
  • Abnormal termination
  • Application shutdown
  • Damage-induced to the database
  • Server breakdown
  • Virus Attacks
  • Trojans Infections
  • Lack of Storage Space
  • Accidental deletion of the user account

Hence, we have made a list of the top 5 best OST to PST converter tools in 2023 to make your job easier to convert OST files to PST easily.

Top 5 OST to PST Converters for Windows and Mac 2023

Here in the table given below, you can go through the top-rated OST to PST Converters and choose any tool to convert your OST File. All of them are reviewed by Outlook Experts and you can check their striking features and prices before finalizing any software. 

OST to PST Converters Conversion Percentage Key Feature Price
Sysinfo OST to PST Converter 95% This software is best for converting large-size OST files to PST with a high percentage of accuracy zero data loss. $69
Aryson Offline OST to PST Migrator 93% This software is best for its high speed because it does the OST to PST Conversion quickly. $49
MacSonik OST to PST Converter 93% This is the best tool for mac users because it efficiently converts OST files to PST on all Mac Versions. $49
DRS OST 2 PST Exporter 92% You would love the attractive and smooth interface of this OST to PST Converter and it is best in its design. $49
Cigati OST PST Converter 91% This software gives you the best performance in converting large OST files having thousands of emails. $49

Check the Detailed Features of every OST File Converter and choose the best one as per your needs. You must also go through the graphical user interface of every tool and see which OST to PST converter will be easier to use.

SysInfoTools OST to PST Converter

SysInfoTools is the best data recovery service provider nowadays. SysInfo OST to PST converter tool is one of the best and can easily convert OST files into desired file formats like PST, DBX, EML, MBOX, Archive, and MSG formats. This software doesn’t support damaged or corrupted Exchange OST files. It also not adds password-protected OST files so you can try the OST Recovery Software to deal with corruption issues.


  • The software has options to save OST to PST, MBOX, DBX, EML, MSG, and Archive.
  • It converts emails, journals, tasks, to-do, etc. to PST format.
  • Available Scan and Preview Option.
  • Converts OST emails to PST up to 25 emails in the free version.
  • 24*7 Tech support and is 100% secure.
  • No file size limitation for the conversion of OST to PST.
  • Creates a status report for conversion.
  • maintains data accuracy.
  • Has the option to exclude email with the help of a date filter.
  • Can do ultra-fast scanning and conversion.
  • This software can handle Bulk files and conversions.


  • The demo version does not allow the conversion of more than 25 emails.
  • Unable to Exchange OST files directly to the Exchange server.

Software’s Interface

Sysinfo OST to PST


Aryson Offline OST to PST Migrator

If you are looking for the second-best OST to PST file converter tool, then a fine option is Aryson technologies.

This converter tool helps to perform safe and fast OST to Outlook PST conversion in just no time. It can export OST emails to Windows Live Mail (EML) and MAC mail (MBOX). This tool can easily export email contacts, calendars, tasks, notes, etc. from an offline OST file into Outlook PST email format. This software tool also maintains data accuracy and integrity. Helps in the conversion of encrypted OST files and provides an option for saving snapshots.


  • This software tool can easily convert OST files into PST, EML, MSG, MBOX, DBX, and Archive Format.
  • Developed with intuitive GUI and user-friendly interface.
  • Easily allows users to search and locate Offline OST files in your system.
  • Users can preview migrated OST files before the complete conversion process takes place.
  • Compatible with all MS Outlook versions.


  • Only compatible with Windows versions.
  • Does not convert OST files to Office 365.

Software’s Interface

Aryson OST to PST

MacSonik OST to PST Converter

This is an efficient software for OST to PST conversion. Let us look at some of the pros and cons of this software.


  • Support multiple saving options along with batch conversion capability.
  • Performs OST to PST Conversion on a Mac Device.
  • Can import OST files to Exchange Online.
  • Compatible with all versions of MS Outlook.


  • Only support Mac-based Operating systems.
  • The Demo version only allows generating previews and exports 25 email items per folder.

Software’s Interface

MacSonik OST to PST

DRS OST 2 PST Exporter

Search and save individual emails within the same OST file converting encrypted OST files into PST files along with working on IMAP OST files. The Demo version allows the conversion of up to 20 emails per folder and can convert multiple emails easily. It is one of the best OST to PST Converter tools in 2023.


  • Converts OST files to Office 365 easily.
  • Can save scanned information in the form of a DAT file.
  • It strongly supports the conversion of multiple OST files in one go.
  • It allows users to split and compress the files and save them into PST file format.


  • Batch conversion is supported only by the Technician edition.
  • Compatible with only Windows versions.

Software’s Interface


Cigati OST PST Converter

It is a good tool that retrieves user mailboxes from orphaned OST files very smoothly and firmly.


  • Efficiently Converts OST file mailbox items with attachments to PST.
  • Restores Exchange emails to Gmail/ accounts.
  • Refine your data items based on item type, date range, folder name, etc.
  • Generates the graphical report of the total items migrated from OST to PST file format.


  • The trial version of the Cigati OST to PST Converter tool can only convert 25 emails from each recovered folder.
  • It supports only Windows-based Operating systems.

Software’s Interface

Cigati OST to PST


In this article, I have discussed the Top 5 best OST to PST converter tools of 2023 that can help you decide on your conversion needs. You can get an idea about the features and the pros and cons these tools hold for efficient conversion from OST to PST  email files in MS outlook. So, for all your OST to PST conversion needs, you can trust SysInfoTools’ OST to PST converter tool as it is the most trusted brand and is highly rated by customers all over the world.

Related Post