OST to PST Converter Tools

If you are looking for the best OST to PST converter tools then you are in the right place. After examining more than 30 OST to PST software, we have concluded the top 5 best converter tools on the basis of performance and accuracy.

Microsoft has launched OST (Offline Storage Table) file format for Outlook. The OST file format stores multiple emails, tasks, contacts, calendars, attachments, and other personal mailbox data used by Outlook. Users can easily work on OST files even in offline mode and the changes made will automatically get updated when exchange connection is re-established.

PST (Personal Storage Table) file format is the default format that is used to import and export emails from MS Outlook. PST file format stores multiple emails, calendars, contacts, journals, attachments, etc.

Before moving further, let’s see why users want to convert OST files to PST file format.

Why Do Users Need to Convert OST to PST?

We have listed some of the reasons to migrate OST files into PST file format.

  • OST Data Migration
  • To backup some exchange mailbox
  • When Exchange server gets crashed or failed
  • Accidental deletion of Exchange Server
  • Exchange Server Maintenance

Best OST to PST Converter Tools

 1. Data Recovery Solutions OST to PST File Converter

Data Recovery Solutions OST to PST Converter is a powerful software which can easily repair inaccessible OST files and convert OST file to PST within a short frame of time. The tool ensures the migration without any risk of data loss. It allows users to convert OST files to different file formats like MSG, MBOX, EML, EMLX, PDF, TXT, HTML, etc.


  • It performs fast and accurate conversion.
  • It can easily migrate OST emails into Mac Mail (MBOX).
  • Easy to use interface.
  • There is no risk of data loss while converting OST to other formats.
  • It can easily export contacts, emails, calendars, tasks, etc from OST into Outlook PST format.

2. Aryson OST to PST Converter Tool

Aryson is a renowned brand for data recovery and migration. The tool is also considered as one of the best OST to PST converters available in the market. It can easily convert all the mailbox items like calendars, emails, attachments, etc. into the PST file. Users can also download the free version of the software.


  • It can export encrypted OST files into PST.
  • There is No file size limitation.
  • Bulk conversion is possible.
  • Allows converting OST files to different other file formats such as EML, MBOX, MSG, HTML, etc.

3. SysInfotools OST to PST Converter

The software is one of the best OST to PST converters that converts multiple OST files to PST format. This tool allows users to export the corrupted Outlook OST data files. Users can easily convert their OST files to desired file formats like MSG, MBOX, HTML, EML, TXT, etc.


  • The software converts mailbox items such as emails, contacts, tasks, calendars, etc.
  • It can easily convert password encrypted OST files to PST.
  • This saves OST files into PST, MSG, MBOX, EML, DBX & archive.
  • It offers a preview feature to take a preview of converted files.

4. Sh Data Rescue OST to PST Converter

This is an exceptional software which can quickly import OST file into Outlook PST file format. Apart from OST to PST conversion, this software is able to convert OST files into MSG, EML, PDF, MBOX, and many other file formats. The software is also able to convert the corrupted or damaged OST files.


  • The software exports emails, contacts, tasks, journals, etc.
  • Also able to export password protected OST files into PST format.
  • It saves OST files into PDF, MSG, MBOX, EML & Archive.
  • It provides a data filter feature, search, and preview options.

5. Cigati OST to PST Converter

If you are looking for a quick and perfect solution to convert OST files to PST file format, then Cigati would be one of the best solutions for you. The software ensures users for complete data conversion from OST files such as emails, notes, calendars, contacts, etc.


  • The software is compatible with all the latest versions of MS Outlook and Windows.
  • It allows users to recover and backup all the items of the OST file.
  • Offers a preview option before the conversion process.
  • Batch conversion of OST files to PST file format.

6. Convertertools OST to PST Converter

The software easily backups and attracts Outlook OST files to PST. Advantage of using this tool is that it can convert the offline OST to PST format without exchange. Therefore, no Outlook server connectivity is required.


  • Batch Conversion of OST to PST without installing Outlook
  • Technical knowledge is not required.
  • Supports all the latest Outlook versions.
  • No file size limitations.
  • It can also convert encrypted OST files.

7. Mailconvertertool OST to PST Converter

The software helps users to perform fast and secure OST to PST conversion in no time. This tool also supports the corrupted or damaged OST files and even exports password encrypted files. The software maintains data accuracy and integrity.


  • No file size limitation.
  • Provides search, preview, and date filter features to simplify the conversion.
  • Supports password encrypted OST files.
  • Bulk conversion is possible.
  • Ultra-fast scanning and conversion.

Final Words

Above, we have discussed some of the best OST to PST converters which are trustable and more reliable converters available in the market with their key features. These tools quickly export OST to PST without any hassle. By using these mentioned tools you can easily export Outlook Offline OST to PST along with the attachments. There is no need to install MS Outlook application as these tools convert OST to PST without Outlook.

By kamlesh