Top 5 Best OST to PST Converter Tool Software- 2023

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  • Updated on August 17th, 2023

Summary: In 2023, the demand for efficient OST to PST converter tools has grown significantly as users seek reliable solutions to convert their Outlook data files seamlessly. These converter tools play a crucial role in migrating data from OST (Offline Storage Table) files to PST (Personal Storage Table) format, enabling users to access their emails, contacts, calendars, and other mailbox items effortlessly.

What is Microsoft Outlook and How Does it Work?

Microsoft Outlook is software for dispatching and receiving emails. You can also organize your private data, such as your calendar, tasks, contacts, appointments, and notes. It works in such a way that you have an MS Exchange Server Synced with your offline cache, also called an offline storage table (.ost file). In layperson’s terms, the office maintains a copy of our data and keeps it updated with the server version, which it can later use in case of any issues.

However, one may encounter several situations when the offline table is inaccessible or damaged.  Though each has pros and cons, the internet is saturated with OST-to-PST converters. As plenty of great tools are available online, making an informed decision may be overwhelmingly difficult. Therefore, we’ve compiled a list of the top 5 best OST to PST converter tools to help you invest in the most suitable option according to your preferences.

Why Do We Convert OST files to PST?

  1. If Exchange Server abruptly stops functioning.
  2. You require a backup of the Exchange Mailbox.
  3. Some mailboxes were accidentally deleted.
  4. Someone must rebuild their OST file if they have unsaved data in the OST file.

If you face the following, you’ll need an OST to PST converter:

Factors to consider when choosing the Best OST to PST Converter

When you decide to get OST to PST converter software, keep these things in mind:

  1. Choose one with a secure, Simple Interface that is easy to use. So anyone with any level of technical expertise can use it without hassle.
  2. The OST to PST converter tool you choose should be compatible with the version of operating software (Windows or Mac) you have and Microsoft Outlook you’re currently using.
  3. It should be value for money; you shouldn’t overpay for your software.

So, now that you’ve caught up, here are the top 5 Best OST to PST Converter software reviews.

Aryson OST to PST Converter (recommended):

Best OST to PST Converter
Aryson Technologies also offers robust conversion software. This tool is one of the best-rated OST to PST converters, as it performs a safe and fast conversion. They offer options to fix the local OST data and transfer all of the mailbox items with attachments while keeping the original OST data intact. This tool can export OST emails to Windows Live Mail (EML) and MAC Mail (MBOX). Because it is simple and easy to use, even someone with no technical background can use it. 

Some pros and cons of the Aryson OST to PST converter:

  1. User-friendly interface and an intuitive GUI.
  2. Compatible with all Windows Versions.
  3. The software can also transfer the OST file to DBX, MBOX, MSG, PST, EML, and Archive formats.
  4. Works while generating a log file of the transfer process.
  5. This tool helps in the migration of the usual as well as faulty OST files.
  6. Easy-to-use application with little to no prior technical expertise required.
  7. Aryson previews the OST files in the mailbox folder before saving them into the PST file.

Minimal capabilities in the demo version: 50 mails only.

Sysinfo OST to PST Converter:

Best OST to PST Converter
This OST to PST Converter offers professional tools trusted by many users and can be easily used by anyone, novice or experienced. It has an easy interface and powerful functionality while also being fast. You can also convert OST files into desired formats like PST, DBX, EML, MBOX, Archive, and MSG, supporting the conversion of password-secured, broken, or damaged OST files. Well, for all Windows versions and most Outlook versions too.

Some pros and cons of Systools OST to PST converter:

  1. Easy-to-use utility tool providing an all-in-one solution.
  2. Support for encrypted as well as corrupted OST files.
  3. Migrates Single or multiple bulk files to PST.
  4. Converts Emails, journals, tasks, and to-do lists to PST format.
  5. Exclude Emails with the date filter.
  6. Metadata is preserved even after the conversion takes place.
  7. It provides full Backup, recovery, & Extraction of OST files and other items.
  8. You can use it with any file size.

The demo version offers a limited capability to convert 50 emails per folder.

Cigati OST File Recovery:

Best OST to PST Converter
This software can also retrieve data from Corrupt and inaccessible OST files. It’s also capable of handling alignment errors in the file and fixing highly corrupted ones. We can use it to recover deleted Emails, contacts, and calendars. It has a date range filter, which makes it different from other available tools.

Some Pros and Cons of the Cigati OST File Recovery:

  1. It restores Emails from the OST file along with drafts, deleted items, notes, calendars, and contacts.
  2. Cigati offers the option to keep the recovered files as an archive in EML, PST, DBX, MBOX, HTML, TXT, and MSG.
  3. It offers multiple saving options like pst,mbox,dbx, eml, and msg.
  4. Feature to create the LOG file of the recovery process.
  5. Compatibility with Windows 10, 8, 7, and all MS Outlook versions, including the 2019 version.
  6. Date range option to restore emails from a specific period.
  7. Trial version to preview OST files and save Emails as HTML and TXT file formats.

A little costlier compared to the above ones.

Stellar OST to PST Converter:

Best OST to PST Converter
Stellar offers to Search and Save individual Emails within the same OST file, convert encrypted OST files into PST files, and work on IMAP OST files. They support MS Office versions: 2016/2013/2010/2007/2003/2002 (XP)/2000. The demo version offers the testing of 20 Emails per folder, after which you can preview the recovered items.

Pros and Cons of Stellar OST to PST Converter:

  1. Compatible with all Outlook versions.
  2. It can convert OST to pst,eml, msg,mbox,dbx, and archive formats.
  3. Free software updates automatically during installation.
  4. View and Save log reports of converted files.
  5. They allow an easy search of offline OST files on your system.
  6. The tool has a user-friendly look.
  1. Only compatible with the Windows version.
  2. Bach Conversion is only offered in the technical edition.
  3. Pricier compared to the others offering the same features.
  4. You can only convert one OST to PST at a time.

Kernel OST to PST Converter:

Best OST to PST Converter
The software offers to save the user mailboxes that get damaged or Orphaned and transfer them into PST format. They offer a free trial version of 25 items with full features, paid options, and unlimited saving capabilities. It comes in four license types: personal, home, corporate, and technician, with prices ranging from $69 to $299.

Pros and Cons of Kernel OST to PST Converter:

  1. Recovers permanently deleted Outlook mailbox items.
  2. It provides a search tool for finding a particular message in the OST file.
  3. Export directly without suffering any loss of data in the process.
  4. You can split the PST file according to its size.
  5. They also have features for the Restoration of Exchange Emails to Gmail/ accounts.
  6. Provides a visual report of all the files transferred from OST to PST.
  1. It supports mainly Windows-based systems.
  2. The trial version only offers the conversion of 25 Emails from each recovered folder.
  3. It needs an invaluable feature to split and compact the converted PST file.


Now you’re well equipped and have enough data to make an informed decision. After much consideration and review, Which is the best OST to PST converter of 2020? , we’ve landed on the conclusion that the Aryson OST to PST Converter covers pretty much all of the bases. The Aryson OST to PST converter is robust and powerful, not compromising efficiency or straightforwardness. So may go ahead and download the best OST to PST Converter.

About The Author:

As a lead technical writer, I know the technical problems faced by office and professional users. So, I decided to share all my technical knowledge through this blog. I love helping you with tough challenges when dealing with technical issues.

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