open OST files without Outlook

OST Viewer Tool

View All Your Orphaned Offline Folders with Attachments

  • Allow users to view orphan OST or corrupt file along with attachments
  • Recover deleted items from OST file with Advance Scanning
  • Generate preview of Emails, Calendars, Contacts, Notes, etc.
  • User can add multiple OST files in the tool, one at a time
  • Exchange Server environment is not required for viewing OST file
  • Software generate preview of bulk OST files at a time
  • User can reload the saved scanned file and can view it again

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Trail version give sample of recovered OST files or you can View OST Files into Outlook but cannot extract it.

Product Guide

Highlighting Features of OST Viewer

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Preview Generation

With the OST Viewer tool, user can read multiple OST files data such as emails, contacts, calendars, etc with the tool user can view email details such as from, to, Cc, Bcc, subject and attachments.

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Attachment Preview Generation

OST viewer enables it’s users to view attachments within the tool with the help of in-built viewer. The tool will display attachments such as images, files, documents, etc with in-built viewer feature.

ost reader tool

Two scanning Modes

To repair and recover corrupt OST files, OST Viewer features two scanning options that can easily repairs the corruption of OST file. For minimal corruption user can for Quick Scan and for highly damaged OST file user can select the Advance Scanning.

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Additional Tools Not Required

The OST Viewer tool works standalone; it does not require any addition environment such as Outlook or Exchange server for performing its task.

ost file viewer

Contact and Calendar Viewer

User can view their Contacts and Calendars in similar ways as they appear on Outlook. Software also provides preview of Task, Journal and Notes.

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Save Scanned File

The tool allows its users to save scanned file and enables them reload it in future which will save the time of user.

Read & View Corrupt OST File

When the Exchange mailbox is deleted from the server side for which the offline folder has been created results orphan OST files. There are many other hardware/ software issues that makes OST file orphan. It becomes very difficult to view orphan OST file data, to resolve such issue of viewing orphan OST file; user can go for OST Viewer software which is available as freeware. With the OST Viewer tool user can view data contained in orphan OST file such as Email, Contacts, Calendar, etc. and also, can recover the deleted OST file items.

Microsoft OST Viewer Tool Client Review

“I have used OST viewer tool and the result was actually amazing, due to same problem in Exchange server my mailbox get deleted from the server, then I had only its Orphan file that contains all my important attachments, with OST viewer I have successfully recovered all my documents”

– Dona Makin, USA

OST Email Viewer Introduction


Screenshots OST Viewer Tool

OST File Viewer
Read OST File
OST mail viewer
open OST file


Does the tool allow reading or viewing corrupt OST file?
Yes, with the tool user can easily view the data contained in corrupt OST file, as OST Viewer comes with Quick scan and Advance scan that can recover highly corrupted OST file.
Will the OST Viewer tool can works without Exchange environment?
Yes, user can view OST files without Exchange environment as it is a completely independent tool that can works without any supporting application.
Is there any size limitation imposed on OST file?
No, with OST viewer tool user can view any size of OST file. There is no size limitation imposed by the tool on input OST files.