OST File viewer Tool


OST Viewer Tool

Microsoft Outlook OST file viewer software to open & read emails from Outlook OST file instantly. By using OST file reader software, users can analyse/open Outlook OST file data simply, like emails, contacts, and calendar with attachments.

(Average Rating 4.8 Based on 113 Reviews)
  • View & read OST email along with the attachments associated with it.
  • Use advance scan mode to scan & browse corrupted or orphan OST files.
  • Navigate OST file with email attachments without Outlook & exchange server.
  • Recover and preview deleted OST file items by using advance scan mode.
  • Options to loads saved scan file and view OST file in just few simple clicks.
  • Preview OST files of Outlook version 2021, 2019 & all below versions.
  • Allows OST viewer tool on latest Microsoft Outlook 2021, 2019 and All the Prior Versions
  • Supports all the versions of Windows OS: Windows 11 (64-bit), Windows 10, 8.1, 8, and 7

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OST file viewer & It’s Advance Versions

Different versions of OST file reader provides a variety of features. Below is an extensive list of the features users can get with all version:-

Best OST Viewer

OST Viewer

When users get this OST viewer on their PC, users will be provided access to a range of features.)

  • View All OST files.
  • 8 Preview modes to read/view details of the OST data file.
  • Preview emails, contacts, calendar, tasks, notes and journal.

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OST viewer Pro Version

Pro Version

If users want to access additional features, upgrading to the pro edition of Outlook OST viewer is suggested.

Features of OST Viewer

  • Search for OST files with a specific drive or across all drives.
  • Allow several files in batch
  • Remove SMIME/ OpenPGP Encryption
  • Advance search permits users to find particular data more effectively.
  • Export to PDF with several, custom settings.

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Pro Plus Version of OST Viewer

Pro+ Edition

Outlook OST file reader pro plus, the most advanced edition, comes with the best features:-

Features of OST Viewer Pro

  • Export complete data into OST format.
  • Export emails into MBOX format.
  • Export complete data items into single MSG file
  • Export EML or EMLX emails

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Several Preview Modes to Read OST Files

ost viewer utility

With OST reader software, one can view OST files in different preview ways provided by the tool. This tool can also execute deep analysis of OST emails via the several preview modes given by the application. Moreover, the application is able to work with OST files of several Outlook editions without any compatibility issue.

Preview Modes Provided By OST Viewer
  • Normal Mail View
  • Hex View
  • Properties View
  • Message Header View
  • MIME View
  • HTML View
  • RTF View
  • Attachments View
Support OST File of Outlook Version
  • Microsoft Outlook 2021
  • Microsoft Outlook 2019
  • Microsoft Outlook 2016
  • Microsoft Outlook 2013
  • Microsoft Outlook 2010
  • Microsoft Outlook 2007
  • Microsoft Outlook 2003
  • Microsoft Outlook 2002
  • Microsoft Outlook 2000

Prominent Features of OST File Viewer Software

free ost viewer

View OST Files in Batch

This OST Viewer tool allow users to read all items of OST files such as Emails, contacts, calendars, notes and other data items. The tool generates an instant preview of all emails along with the attributes like From, To, Subject, Sent, Received date, and size by bytes.

free download OST file viewer

Advance Scanning Mode

OST File Reader is also capable to open and view corrupted or orphaned OST files. The Advance Scan feature of the software allows to scan and view the files that are corrupted or orphaned and also eliminated corruption from the OST files.

microsoft ost viewer

View OST File with Attachments

Using this OST file reader tool one can easily view attachments integrated with the emails directly from the software panel. By using this utility users can read any kind of attachment like, documents, files, and images etc. from OST files. Also, can easily play an audio or a video which is inserted in the attachment from the software.

ost viewer utility

No Pre-Requirements

For use of this Microsoft OST viewer tool there is no need of any email client. Users can simply read and view OST file. OST file viewer software, which offers their users to view and read OST files flawlessly along with complete data items. Robust application to read OST file from any version of Outlook 2021, 2019, 2016 and all below editions.

ost reader

Sort OST File Data by Attributes

OST file opener software permits the users to sort OST emails, calendar, contacts, notes, and so on. According to specific attributes. These elements differ rendering to OST data items. These attributes contain: From, company, destination, subject, category, size, home, phone, file as, To, Sent, Received etc.

ost file reader

Optimized OST Viewing

Microsoft OST file viewer tool offers to their users to read OST file data in an optimized way without the occurrence of any issue. This tool also provides an option to change the location of its Temp folder from the installation drive (C drive) to any other drive. It assists to reduce the primary memory consumption.

Outlook OST File Viewer - Screenshots

4-Steps Working to View Outlook OST File Securely.

OST reader tool
outlook ost file viewer
ost file viewer download free
ost viewer software

OST File Viewer Software Specifications

Download OST reader Tool to Read and View Microsoft Outlook OST Files

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Size: 18.1 MB

Version: 5.0

MD5: 7920bd60326278c1bd912f4146f604d7

System Specifications

Hard Disk Space
Around 100 MB free space for installation

(2 GB is recommended)

Intel® Core™ 2 Duo CPU E4600 @ 2.40GHz 2.39GHz


  • Microsoft .NET Framework 4.5 or above should be installed
  • If you are using Windows 11, 10, 8, 7 (32 bit or 64 bit) & Windows Server 2016, 2012 R2, 2008, then please launch the software as "Run as Administrator".

Supported Editions

  • Microsoft Windows 11 (64 bit), 10, 8, 7 (32 bit or 64 bit) & Windows Server 2019, 2016, 2012 R2, 2008
  • Microsoft Outlook 2000, 2003, 2007, 2010(32/64 bit), 2013 (32/64 bit), 2016 (32/64-bit), 2019 (32/64-bit), 2021 (32/64-bit)


Question: Is your Anti-Virus blocking the software export proccess?

Solution: Please Disable Anti-Virus Temporarily / Allow access (Whitelist) from Anti-Virus Settings for proper working of the software.

Question: Unable o Create Output in Destination?

Solution: Please avoid source from NAS, SAN, Network or Shared Drive. Source File should on migration machine to perform successful migration.

Electronic Delivery

The delivery of product is automated.You will receive an email containing both the link to download the product and the activation key within few minutes after payment confirmation.

Upgrade to OST Viewer Pro Version

Upgrade to Outlook OST Viewer Pro for Advance Search & Export Option

Features Viewer Pro Version Pro+ Version
Load Outlook OST Files

Auto Scan Mode

Open Outlook BAK File

Preview OST Files

View Emails with Attachments

Free Installation on Multiple Computers

Advance Search Options

Naming Option

Save to Portable Document Format

Export OST to PST, EML, MSG

Split Outlook Data File

Cost FREE ₹5646 ₹10555

Frequently Asked Questions

Common Query of Free OST File Viewer

Follow four easy and simple steps to view Outlook OST File content:

  • Step 1: Download and Install OST File Viewer Tool.
  • Step 2: Click on Add File (s) to load the OST File to view.
  • Step 3: Use Advance Scan mode for the damaged file.
  • Step 4: Preview OST file Data item with attachments.

Yes, you can view all contacts available in OST file using this OST Reader tool.

Yes, this tool has the potential to view and read even the OST files is corrupted without any issue.

No, it does not require any email client to preview the OST file contents.
No, there is no limitation on the size of the OST file that you want to open and view.
Yes, The tool is compatible with Windows 11 all below versions to read and view OST files.

Client Reviews on Software

OST File Viewer Solftware Verified Purchase Reviews

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