ost viewer

Microsoft Outlook OST Viewer

OST Reader is a robust application that supports to analyze and preview OST files in a trouble free manner. By using this OST email reader tool, users can access/read Outlook OST file data like emails, contacts, and calendar with attachments.

  • Support Inaccessible/Orphaned/Corrupted OST File Data.
  • Advance Scanning Mode Available for Severe Corruptions.
  • Free download OST reader Software on Multiple Computers.
  • Exchange OST File of All Outlook Versions Are Supported.
  • Reloads saved Scan File and read OST file instantly.
  • OST viewer keeps Read/Unread message status with all features
  • Adds Multiple OST Files One by One & previews items in an In-built Viewer
  • Download OST viewer and launch on: Windows 11 (64-bit),10, 8.1, 8, & 7
4.8 ✭✭✭✭✭

Soft 32 gives OST Reader software 5-star rating for its efficient service in viewing multiple Outlook OST files within few clicks along with the associated attachments.

4.8 ✭✭✭✭✭

Softpedia review the OST reader tool as it provides easy to use interface and has no difficulties on viewing OST files of any size.

Outlook OST Viewer & Its Pro Editions

Different version of OST read provide a variation of features. Below is an immense list of the features users can get with every version


OST Viewer

When users get the OST file reader on their computer, users will be offered access to a range of features.

  • Read All the OST Files
  • Provide 8 preview mode to read the extensive of the OST file data.
  • Preview Emails, Tasks, Notes, Emails, Contacts, Calendars, Notes & Journal.


Pro Edition

Is users want to use additional features, by upgrading to the pro edition of Outlook OST viewer is suggested.

Features of OST File Viewer

  • Find or search for OST data files either within a particular drive or across all drives.
  • Allows several files in Batch
  • Delete SMIME / OpenPGP Encryption
  • Advanced Search provdies you to find Particular Datamore beneficially.
  • Export to PDF with several, Advanced Settings
  • Printing OST Emails.


Pro+ Edition

Outlook OST reader pro pluse, the most advanced edition, comes with the best features:

Features of OST Viewer Pro

  • Export All Data into PST format
  • Export Emails into MBOX format
  • Export All Items into individual MSG file
  • Export only Emails into the form of EML/EMLX
OST viewer

Best Outlook OST File Reader Tool

Various Preview Modes to Read OST Files

By using OST viewer software, Users can view & analyze OST files in different preview modes. Forensic detectives can also execute a detailed analysis of OST emails with the several preview modes offered by this utility. Moreover, this tool has ability to work with OST files of different Outlook editions with any trouble.

Preview Modes Provided by OST Reader

  • 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

Best Outlook OST Viewer Software

Advance Search and Export Functionalities

Sometimes, the user requires to search for a specific OST email between several OST files. With the OST reader tool offered by ForesicsWare, the users can simply search for a particular OST email with the advanced search feature and also save the search outcomes into portable document format.

Advanced Search Feature: - Users can simply search for a specific for specific OST email from among tons of OST files in an easy way by using the advanced search option. Users can make their search outcomes more particular by applying the several filters and operators offered by the OST viewer tool.

Export to Portable Document Format: - In few cases, the users requires to save OST files into PDF. For example, any sort of indication fixed out of an OST file necessity to be obtainable in courts in the PDF format. This tool allows forensics investigators to simply export OST emails in the required format while keeping all the document formatting intact.


Prominent Features of Outlook OST File Reader

Preview Complete OST Data

Outlook OST Viewer enables users to view complete Exchange OST file data including emails, contacts, calendars, tasks, journals, etc. of Exchange OST file. It is capable to show preview of all technical components of data in the preview and individual items can be viewed along with attachments.

Two Scan Modes

View orphan as well as corrupt & damaged OST file. If users to read orphan as well as corrupt OST files. If users require to read a corrupt OST file, then just choose the advanced scan option to scan the OST file and eliminate the corruption. When scanning is done, the save scan mode allows users to save the healthy OST file in the tool interface. Users can load the saved OST file just hitting the load scan option.

Recover Corrupted & Deleted Data

Exchange OST Viewer supports recovery of corrupted and deleted OST data and helps users to view this recovered data. This helps in gaining data, which was initially inaccessible or lost due to corruption in file or any type of accidental deletion. It helps in complete data recovery.

Sort OST File Data by Attributes

The Outlook reader tool provides option to sort OST email, contacts, notes and calendar etc. According to specific attributes. These attributes vary according to OST file data items. These attributes include: From, Size, Location, File As, Subject, Company, Category, Home Phone, To, Received, Sent, etc.

Exchange Or Outlook Not Required

This application is a standalone utility and it does not need any application installed mandatorily. Microsoft Outlook OST viewer execution can be done in any Windows version and it will work without Exchange server or Outlook installation. This unique feature allows users to view OST file data easily.

No File Size Limitation

Exchange OST Viewer imposes no file size limitations on OST file and can help in viewing complete data of large files successfully. Generally Exchange mailboxes are very large and hence the OST files usually carry too much of email data. Outlook OST File Reader however lets users to view OST file of any size without any restrictions.

Software Working

Screenshots of Exchange OST Viewer

ms outlook ost viewer
ost file reader
microsoft ost viewer
outlook ost file viewer


Microsoft Outlook OST Viewer Tool - Specification

Hard Disk Space: 100 MB of free hard disk space required
RAM: 2 GB of RAM
Processor: Intel® Core™ 2 Duo CPU E4600 @ 2.40GHz 2.39GHz

Microsoft Windows 11 (64 bit), Windows 10, 8, 7 (32 bit or 64 bit) & Windows Server 2019, 2016, 2012 R2, 2008.

Pre Requisites:
  • If you are using Windows 11, 10, 8 then please launch the tool as "Run as Administrator".
  • Microsoft .NET framework 4.5 or above should be installed.

Product Guide:
Software Guide   Installation   Uninstallation  

ForensicsWare OST Viewer Tool Upgrade

Upgrade to Outlook OST Reader Pro & Pro Plus Edition


OST Viewer

OST Viewer Pro

OST Viewer Pro Plus

Add 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

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ForensicsWare Outlook OST Viewer Tool

Frequently Asked Questions

Yes, it is possible by following steps to read an OST file without exchange server:

  • Step 1: Download and launch Outlook OST reader software.
  • Step 2: Navigate the OST file with advance Scan option.
  • Step 3: Now preview the OST file message in Normal View Tab.
  • Step 4: Finally, Change View as per convince.

Yes, users can view any size of OST file without any file size restriction.

Yes, users can use OST reader software on any version of Windows OS.

Users can preview corrupted and damaged OST files by using Outlook OST file viewer tool.


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