9.3 rating, out of 10 based on 323 KDETOOLS OST to PST View all Google reviews

Convert corrupted as well as healthy OST files to PST files in Microsoft Outlook

  • Risk-FREE Perform Microsoft Exchange OST to PST Conversion
  • Convert OST file into multiple file format like to PST, EML, MSG, DBX, HTML, TXT and RTF format
  • Efficiently Repairs corrupted/ inaccessible OST files
  • Recovers all OST items including emails, appointments, journals, posts, attachments, contacts, notes, tasks accurately.
  • Maintains files and folders in their hierarchical order to keep internal folder structure original.
  • Keeps the E-mail metadata properties (To, From, Cc, Bcc, Subject, Date, Time), structure, format, and the other content of OST file unaltered during the conversion process.
  • Export OST items from highly-encrypted and password-protected files easily.
  • Provide option to save converted items on user-specified location.
  • Compatible with all MS Outlook versions (32-64 bit) 2003, 2007, 2010, 2013, and 2016.
  • Supports up-t o 50gb of OST file database to PST
  • Download FREE version provide you Preview of recovered OST items to check the software functionality before investing in full Pro version.

*FREE Demo version enable to Preview of Recovers & Convertible (.OST) items but Saved only 30emails each folders.


Flawless OST to PST Conversion

OST to PST converter is a technically advanced tool that is designed to export all types of OST file to PST file format. This tool to Convert unlimited number of OST files to PST files in a single attempt.

Recover Inaccessible OST Items

The tool option to Recover corrupt /inaccessible OST files and also helps to restore with full attachments such as emails, appointments, contacts, tasks list, images, journals, notes, and everything else. are also recovery results..

Complete Preview of Email Meta Data

The utility facilitates its user have a complete ensures to keep Email Metadata like To, Cc, Bcc, Subject, Sent/Receive Date & Time, etc as it is as before. It does not alter the original formatting of OST items.

Converts encrypted OST files

This tool it help you to efficiently convert encrypted and password-protected Exchange OST files to PST files, without hampering its data honesty.

Option to Perform Multiple Conversions

This tool perform Multiple Conversion options to SAVE different files formats - PST, EML and MSG. Each of these formats is supported by various platforms like: TXT, RTF, HTML, MHTML etc

Maintain Files and Folders in Hierarchical Order

Software easily maintains the internal folder structure of OST data while exporting to other file format. No changes done in the folder structure of OST database. Hierarchical order will be maintained by the convert OST to PST tool.

Wide Compatibility

One of the highlights of this OST to PST tool is its compatibility with a number of MS Office versions. It supports Microsoft Outlook Office 2016, 2013 (32 bit version and 64 bit versions), 2010 / 2007 / 2003 / 2002 (XP) / 2000.

Free Trial to Understand the Tool Function

Free Demo version is ready to try once. The demo version helps you to know the features of the application closely and gets you aware of the tool advantages. It also gives you free preview of scanned OST items before exporting it to local drive.

Our Consumers

Software FAQs


Just follow the path and get your OST database on local drive:

You can find your OST file on the following paths.

  • Windows XP: drive: \Documents and Settings\user\Local Settings\Application Data\Microsoft\Outlook\...
  • Windows 7 & Windows Vista: drive: \Users\user\AppData\Local\Microsoft\Outlook\...


Yes, you can do this by using the software as it provides option to export only specific emails in required format.


Step 1: Download, install, and run OST to PST Converter and browse OST file to start the conversion process.

Step 2: Now, click on "Scan" button to proceed the next step.

Step 3: After scanning, get the preview of OST items.

Step 4: In last, just click on "Save" button to export the converted data on desired location.


Yes, this software successfully works in case of corruption. You can easily export inaccessible OST file into required file format like PST, EML, MSG, DBX, RTF, HTML and TXT file format. It also helps you to recover your deleted emails from OST database.


Microsoft Outlook is a wonderful way to manage email communication. It organizes emails, attachments, tasks, events, journals and notes. It keeps users alert with all necessary events. Today, millions of people trust Outlook for email management. Both OST and PST are file format of Outlook to store Outlook data files on your computer.

OST to PST data transfer has been introduced by IT companies to resolve email communication issues. The technically advanced tool efficiently transfers all data of OST to PST with just a few simple clicks. It recovers OST items as well that are lost or deleted. Unicode characters are supported. Safe data migration is arranged. But here the question is why OST to Outlook migration. Here are some great reasons for the conversion.

  • PST is a default format of Outlook. Therefore, the file extension is the most common format of Outlook, used for both personal and official purpose in wide ranges than OST.
  • When you store the Outlook data on your computer, it is must to create archives or back up by creating additional pst. files. The Outlook prevents unnecessary data storage on your PC. Whereas Offline Storage Table automatically creates copies of Outlook files. With PST, you can store only necessary files on your Outlook and manage them well.
  • The Personal Folders File uses ISP (Internet Service Provider) which is used mostly by home users to connect to the server. It supports POP3 and IMAP.
  • Repair of Outlook PST with Microsoft free utility. Exceeding the file limit to up to 50 GB, PST files can crash or damaged. In this situation, you may consider PST recovery tool or MS free utility called ScanPST.exe. Its path is depended on Windows bit. A few simple processes are required to follow to repair the corrupted files.

These are top reasons that promote to use PST than OST. If you wish to convert your OST items to PST, choose the recommended way to perform Exchange OST to PST conversion.