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13 Best OST to PST Converter Tool: Go For Right Not For Free!

best ost to pst converter
Published By Aswin Vijayan
Approved By Anuraag Singh
Published On January 5th, 2024
Reading Time 13 Minutes Reading
Category Outlook

This blog post will list the top 13 best OST to PST converters available in the market. All of the listed tools have been tested in our own lab and are ranked based on their working efficiency. Let’s look at the features.

OST file is the carbon copy of the Microsoft Exchange Server mailbox saved on the users’ local system. IMAP/Exchange Server creates the OST file itself, at the time of profile configuration. Also, the OST file is highly encrypted and can’t be re-link and accessed in other IMAP/Exchange profiles. Before moving ahead to understand the best OST to PST converter software, let’s first dive deeper into its technicality.

best software list

According to Microsoft, the OST file will become orphan once it is detached from the Exchange/IMAP profile. Furthermore, Microsoft provides no solution for dealing with orphaned OST files. Due to this limitation, You have to rely on third-party software to convert OST to PST file format.

List of 13 Best OST to PST Converter Software

Table of Content Hide
  1. SysTools OST Converter
  2. 4n6 OST to PST Converter
  3. BitRecover OST to PST Converter
  4. DataHelp OST to PST Extractor
  5. Advik OST to PST Converter
  6. RecoveryTools OST File Converter
  7. Mailsware OST to PST Converter
  8. Dotstella OST to PST Converter
  9. PCDOT OST Converter
  10. Corbett OST to PST Converter
  11. Xtraxtor OST File Converter
  12. Yota OST to PST Converter
  13. PCVITA Converter for OST to PST

Looking for the best OST to PST Converter tool? Tired of going through the long features of the tool? Therefore, making a choice between a wide range of converters available online is really difficult. To make this tough decision easy for the users, a List of the 13 best OST file to PST converter tools is discussed here.

This conversion has always been in trend or in demand. This is the reason there are so many tools available over the web. However, the OST file is profiled-dependent and cannot be imported anywhere. It will limit the accessibility of OST files so, converting them to PST file format will enhance it. Unlike OST files, PST file is a portable file format and can be imported into any Outlook account and stored on the local machine.

Now, the OST file stores Exchange mailbox data in it, which is very important for the user. Therefore, users cannot lose a single bit of information. This is the reason users search for OST to PST conversion software. In order to choose the best from the rest, go through the blog and make a decision accordingly.

13 Best OST Files to PST Converter

OST converter tool is one such application that remains always in demand. Thus, there are hundreds of tools available in the online market. Now, to filter out the best, the top 13 tools to convert offline OST to PST are covered here. Let’s have a look:

#1: SysTools OST to PST Converter

It is the best utility that remains always in demand among users. The application follows a very seamless approach to bulk convert OST files to PST format. In addition, it is completely safe and secure to be installed on the local machine to perform the conversion.

Notes: The quickest way to reactivate your Rackspace mailing functions.  Simply convert Rackspace Hosted Exchange OST to PST format. Follow steps:

  1. Download SysTools OST to PST Converter and Launch
  2. Browse Rackspace Hosted Exchange OST File
  3. Select PST as Export Option and Browse Path
  4. Access the PST Either in Outlook or Office 365

Software Features:

  • Convert OST File Data in Multiple Email Formats: PST, EML, MBOX, MSG, EMLX, NSF
  • Export in Document Formats: TXT, PDF, CSV, ICS, vCard, HTML, DOCX, RTF, MHT, DOC
  • Convert OST File Data: Emails, Attachments, Contacts, Calendars, Tasks, Journals, Notes
  • Allows to Convert Offline OST to PST File Format in Batch
  • Decrypt and Remove S/MIME & OpenPGP Encrypted OST File
  • Convert Orphaned OST to PST Format Without Any Limitations
  • Exchange Environment and Outlook Installation Not Required for Conversion
  • 24X7 Free Support and Life-Time Software Validity
  • Offline Software to Convert Complete Data without Internet

Note: Try the free demo version with the limitation of exporting only 25 items per folder to evaluate the software’s capabilities. After that, buy the full version.

SysTools OST to PST Converter full version software is available in 4 different licensing models. You can choose any of them according to your need.

  1. Personal License: This license is limited to one person and can be installed on 2 different machines only.
  2. Corporate License: It is used for commercial purposes and can be installed on multiple machines in the same building.
  3. Technician License: Buy OST to PST converter full version technician license and launch it on multiple machines in the same geolocation
  4. Enterprise License: Purchase OST to PST converter software enterprise license and run on multiple computers without any limitation.

Official Webpage Link: SysTools OST to PST Converter Software

Using SysTools software is the best way to convert OST to PST format without any data loss. It is awarded by many MVPs for its smooth and accurate processing. It is also an offline software and does not store users crucial data.

Software UI:

best ost to pst converter

#2: – 4n6 OST to PST Converter

In the hunt for the best OST converter, our next stop is the 4n6 OST to PST converter. This software is a robust tool designed to help you convert all and any OST to PST file. And like its predecessors, the 4n6 OST to PST converter has many features and unique qualities.

Salient Features:

  • Convert OST to PST, EML, MBOX, PDF, CSV, vCard, ICS, HTML
  • It can easily migrate emails, calendars, contacts, etc.
  • Convert OST files to PST along with attachments
  • Migrate OST File Directly to Office 365, Gmail, IMAP Account
  • It can crack and convert all encrypted and orphaned OST to PST
  • This tool can split large-sized OSTs into smaller fragments
  • It provides multi-level filter and preview options
  • It is Also Called as Offline OST to PST Converter for Window Users
  • Anyone Can Use This Tool to Convert Rackspace OST to PST Format

System Requirements:

  • Support: Windows 10 (32/64 bit) & All Below Versions.
  • Processor: 1 GHz Processor (2.4 GHz recommended).
  • RAM: 512 MB RAM (1 GB Recommended).
  • Hard Disk Space: 100 MB of Free Space Required


  • The free demo version of the 4n6 OST to PST Converter can only convert 10 emails from OST files in one session.
  • Do not support Mac OS.

Official Webpage: 4n6 OST to PST Converter software

4n6 software as brand ensure user’s for data privacy. User can download this tool and install it on their own system and use it offline. So, we can say that this is Windows offline OST to PST converter software and compatible with all Windows OS versions.

Software UI:

best ost converter

#3: BitRecover OST to PST Converter

Another best application that is safe and secure to use is Bitrecover OST to PST Converter. It will let users export any number of files from OST to PST format in bulk without any limitations. Like all the above tools, it also has all the required features for conversion. For example, a Date-based filter to export selective data.

Features Offered By BitRecover OST Converter:

  • Keeps The Integrity of Data Intact as Original Even After Conversion
  • Export Orphan, Corrupted, Encrypted, and Inaccessible OST to PST
  • It Maintains All Attributes of Emails Along with Associated Attachment
  • Supports Microsoft Outlook 2019/ 2016/ 2013/ 2010 and Below Version
  • Convert OST to PST without Rackspace Hosted Exchange Environment 

Note: Free demo version is also available to verify all options without any investment.

Official Webpage: BitRecover Converter for OST to PST

best software for OST to PST

#4: DataHelp OST to PST Export Tool

DataHelp developed an advance and easy to use software. Using this software is quite easy, Simply drag your OST file and drop into software interface. The tool will allow you to apply some advanced settings also. Let us discuss the software features:

Software Features:

  • Export OST to PST with all associated attributes 
  • Dedicated tool for all Outlook versions OST files
  • Outlook and Exchange Profile not needed for OST to PST extraction
  • Able to maintain email header, attachments, HTML formatting


  • It doesn’t support Mac OS.

Software UI

ost to pst export tool

#5: Advik OST to PST Converter

Advik OST to PST Converter is another OST conversion software, but it has a distinct presence in the document conversion market. It is a newfangled tool that provides stable solutions to the OST to PST conversion needs. Hence, it has rightfully gained this position on the Top OST to PST Converter list.

Salient Features:

  • Batch convert OST to PST without any hassle
  • Repair and convert any damaged or large-sized OST file into more than 20 formats.
  • Preserves OST file integrity and gives stable conversions
  • Easy-to-use GUI for nontech users to use the OST converter tool

System Requirements:

  • Processor: Pentium Class or higher
  • Operating System: Windows 11, 10, 8.1, 8, 7
  • Memory: 1 GB recommended
  • Hard Disk: 100 MB of free space

advik ost to pst converter

#6: RecoveryTools OST Converter

RecoverTools OST converter uses forward-looking technology to convert any OST to PST on all platforms. This tool is not inferior to any previous software, as it can convert OST files on Windows OS. Thus, it claimed its spot in the best OST to PST converter list.

Salient Features:

  • Convert all OST files with all attachments
  • It can convert OST into 25+ formats
  • Maintains file and folder hierarchy
  • OST Converter Compatible with Outlook 2021, 2019, 2016, 2013, 2010, & 2007
  • OST to PST Converter is Operable on Windows OS Versions.


  • The trial version of RecoveryTools OST to PST converter offers only 25 conversions in one session.

recoverytools best software

#7: Mailsware OST File to PST Converter

This is another name in the list of best OST to PST converter tools. It is also one of the safest and free applications to export OST data items to PST format. The application supports OST file conversion from any Outlook version without any hassle. The software offers some attractive features also like an option to export selective data. Apart from all this, other advanced features of this software are discussed below:

  • Capable of Repair and Convert Inaccessible, Orphan, and Corrupt OST Files
  • Export All OST File Data Items Like Emails, Attachments, Contacts, Calendars, Notes, etc.
  • There is No OST File Size Limitation Imposed by This Error-Free Application
  • It Keeps The Originality of OST File Data Intact Even After The Conversion
  • The software is compatible with Windows 10/ 8/ 7 and all below versions

Note: Free demo version is available to verify all stated features.

#8: DotStella OST to PST Converter

In our hunt for the top OST to PST converter, we scouted far and wide for new and better tools. The DotStella OST to PST Converter is one such tool that caught our attention. Although this tool may look like an underdog, its capability for transferring and converting OST files into PST is not subpar.

Salient Features:

  • It can convert OST files into multiple formats
  • This converter can bulk convert OST to PST files
  • It has a unique Dual Search Feature to find deep data


  • DotStella OST to PST Converter exports only 10 files in its free version
  • Its UI fails to be user-friendly

#9: PCDOTS OST Converter

This tool is an advanced toolset that can convert any OST file without size restrictions. This Converter is geared with features to solve multiple problems and works on a continuous feedback system.
Thus, it deserves a spot in the best OST to PST converters list.

Salient Features:

  • User-friendly interface for quick OST Conversions
  • It can convert OST into various formats
  • Bulk conversions are possible using an OST converter
  • Maintains the folder sequence and converts OST to PST


  • PCDOTS OST Converter does not offer an unlimited or perpetual license.
  • It doesn’t support MAC.

pcdot ost to pst best software

#10: Corbett OST to PST Converter

Corbett OST to PST converter may appear later in the top OST to PST converter list, but its functions and features are not secondary. This tool uses intricate and innovative tech to provide stable conversions.

Salient Features:

  • Convert OST to PST, EML, and MBOX file format
  • OST Converter Exports in PDF, vCard, Text, HTML
  • Advanced Search options and Folder order maintenance
  • Migrate OST file to Cloud Applications: Gmail, Office 365, IMAP Account
  • No size limitations to Convert OST to PST Format use the Best Software
  • Corbett OST to PST Converter is Compatible with Windows 11, 10, 8, etc.


  • The free version of Corbett OST to PST Converter can export only 10 files in a session.
  • This tool operates only on Windows.

best in the list

11: Xtraxtor OST Converter

The Xtraxtor OST Converter is a potent tool that can export OST files with all sub-data, emails, contacts, calendars, attachments, etc. This tool allows users to migrate an OST file to any format and email client.

Salient Features:

  • Convert OST to PST, MBOX, PDF, EML, HTML, and text file formats
  • Easily migrate OST files to multiple cloud platforms
  • Supports large file conversions from OST to PST
  • Support to Extract all attributes separately 


  • The product is pricey compared to the other OST converters.

12: Yota OST to PST Converter

Although this software is last in the best OST to PST converter list, this tool has unique features. The Yota OST to PST Converter uses an advanced algorithm to convert any type of OST file into PST. It doesn’t matter whether the OST is inaccessible or orphaned.

Salient Features:

  • Exclusively built for OST to PST conversion
  • Smart preview options for OST file
  • Convert OST to PST, EML, and MBOX format
  • Save in PDF, vCard, CSV, ICS, HTML, Text
  • Upload OST file directly on the cloud (Office 365, Gmail, IMAP)
  • OST Converter is Highly compatible with Windows 11, 10, 8, 7
  • Easily convert large-sized OST files to PST format


  • The Yota OST to PST Converter lies on the expensive side, as its prices are higher than the other software.
  • The free version converter exports only 10 OSTs in one session.

best ost converter

#13: PCVITA OST to PST Converter

The next station of the Best OST to PST converter is this tool. Despite the performance of the earlier software, the PCVITA OST to PST converter has distinctive qualities. This software is a viable choice for exporting and converting OSTs.

Salient Features:

  • Convert Bulk OST to PST, EML, MBOX, MSG, EMLX, NSF
  • It can export any OST into Multiple formats like PDF, vCard, CSV, ICS, TXT, HTML, MHT, DOC, RTF
  • OST Converter Supports All versions of Windows (7, 8,10, 11)
  • Advanced Filters and preview options and convert OST to PST Format


  • It doesn’t support MAC and only functions on Windows 7 and above.

Observational Verdict

Keeping all requirements of users to convert the OST file data without any loss of data, the 13 best OST to PST Converters are discussed in the post above. It let you know all the major features offered by each application. This will help you identify easily the application that matches your requirement the best. I have mentioned industries’ best OST to PST converter tool portable, check and avail one.

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