OST Viewer Free Software

"OST Viewer" is the most intellectual way out to read emails from OST file. It can open healthy as well as corrupted OST files. OST viewer is the free tool, utilize it to view OST file offline.


OST Viewer

Five stars

4.8 out of 5 based on 15 reviews

  • Allows to view OST file without Outlook or Exchange Server.
  • Gives preview of emails, contacts, calendars etc with attachments.
  • Scans and recovers deleted items of OST file.
  • Tool preserves internal structure of all items and mail folder.
  • Two Scanning mode: Quick Scan & Advance Scan.
  • The tool supports OST file of all Exchange Server editions and compatible with Windows operating system.

Download Free OST Viewer
100% Safe & Secure


Upgrade to PRO Edition

Compare the functions and Upgrade to OST Viewer Pro or Pro+ Edition

Features Free Pro Pro +
Dual Scanning Modes
Preview Orphaned OST Files
View Emails in various modes like Hex, RTF etc
Searching Option to Search Particular Emails
Email filtration According to a Date Range
Export and Save Desired Files and Folders
Set Desired Name of OST File
Convert OST Emails to PDF
Convert OST Emails into PST File Format
Convert OST into MSG & EML
Installation of MS Outlook is Required
Cost FREE $69 $129
  Download Upgrade Pro Upgrade Pro+

Know How Free OST File Viewer Tool Works

Stepwise Guide to know How Tool Scans and Previews EML Files

First step of How can I view OSTs Files

Step1: Add File

Install OST viewer and get the option to Add file, browse the desired OST file.

OST Viewer scanning the file free

Step2: Scan

Once the file is loaded user have to wait till the completion of scanning process. Then preview of the file content is shown.

One mouse click to preview OST files free

Step3: Preview

After scanning process, the normal view of mails will be previewed by default. Attachments will also be previewed.

Check Working Steps in Details →

Few More Free Email File Viewers

Other than free OST Viewer there are many other freeware products are available in the list so select the one that suits your need!

Read OST File without MS Outlook

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I had an OST file having a few crucial emails, but was unable to access them due to lack of Exchange server environment. When I start wondering solution to read my emails I found this excellent OST viewer tool. The software is completely free for viewing OST file data without relying on Exchange environment and also offer a quick scan facility to fix minor errors from the OST file. I just want to say thanks to the development team for developing such great utility.