OST File Viewer Box





Outlook OST File Viewer

View OST File and easily Read OST Data, No Outlook Installation Needed

(Average Rating 4.8 Based on 462 Reviews)
  • Read normal OST files as well as corrupt OST files from the mailbox.
  • Access OST File and read OST Data without Outlook installation.
  • According to the level of corruption, scanning modes are available.
  • Option to preview all mailbox items including emails, contacts, calendars, tasks, todo, etc.
  • Making a log file of all the scanning operations for future references.
  • Easily export OST data to HTML and TXT file formats.
  • You can also download the pro version of it i.e OST Recovery to recover corrupted OST files as well.
  • A non-technical user can easily handle its GUI without any hassle.
  • Supported on all versions of MS Windows OS without any assistant application.
Free Download Version 19.0 Upgrade

Free Live Demo - Cigati OST File Viewer Fully Secured Download Version

Features Specifications Screenshots Video Download Upgrade

Why Cigati Outlook OST File Viewer is the first choice of users?

For viewing and reading the OST file, Cigati OST viewer is the best option for the users. As the other free Outlook OST viewer allows you to view healthy OST files only but this tool provides an option to view and read the corrupted OST file data as well. It has the option to preview all mailbox items including emails, contacts, calendars, tasks, todo, etc. that is not provided by other tools. This tool allows users to export OST data into HTML and TXT file formats and includes scanning mode based on corruption levels. So, it is one of the best software consisting of number of features.


When you are facing OST file opening issue then the Cigati OST reader is the best available tool to open healthy/corrupted OST files and all its mailbox content without using Outlook.

SOFTWARE INFORMER AWARDCigati OST file viewer helps in reading the OST files in offline mode. One can quickly access its OST file data without installing Outlook that makes it a feature-rich software.


No need of technical knowledge required to open an Outlook OST file now. A non-technical user can quickly run this Cigati OST viewer tool to open Outlook OST data without any hassle.


If you are an Outlook administrator then it’s a must have. This utility helps you in viewing the OST files of different users without importing it and also supports OST created by any versions of Outlook.

How Cigati Outlook OST is useful to open and view the OST files

Opening OST files without having the origin Outlook profile becomes a very difficult task. But you can use Cigati OST viewer to open OST files without Outlook application. A user can open and view an inaccessible, healthy and corrupt OST files as well. This utility offers different scanning modes based on corruption level. Also, it creates a log file of all the scanning operations for future references. It is a feature-rich utility that’s why it is the most preferable one.

It also provides a feature to preview all mailbox items including emails, contacts, calendars, tasks, todo, etc. If a user needs to export OST data into HTML format then this can be done using Cigati OST reader.

Why to Choose Cigati Outlook OST Reader

No Maintenance
No Maintenance

Cigati Outlook OST reader is a complete freeware and not a paid software. So no need to pay anything. You can just download it and use it to view, read and open OST files. This solves users’ problems in free of cost to view Outlook OST file data.

Open OST Files
Open OST Files

The OST viewer is one of the most advanced tools which not only helps you to view offline OST files which are healthy but also supports viewing of corrupt, inaccessible OST files even without Outlook. This makes it easy to access OST files.

Preview Multiple Files
Preview Multiple Files

Free MS Outlook OST file viewer helps users to preview multiple OST files with all its contents and other properties like: From, Subject, To, Sent, Got date and Size in bytes. Also, it includes preview all mailbox items like emails, contacts, calendars, etc.

Quick Scanning
Quick Scanning

The OST data viewer tool cum reader is loaded with one of the fastest scanning feature. Which lets it to scan some of the largest MS Exchange OST files with all its content without any hassle. This tool includes a quick scanning process.

Simple GUI
Simple GUI

The software has been designed for both technical and non-technical users. The user-interface has been kept simple and easy to use. No technical knowledge needed to run this free OST viewer. Any user can run it without any trouble.

High Compatibility
High Compatibility

Being an advanced application, it has been designed to remain compatible with all versions of MS Windows OS and Outlook versions. This makes work easier for users that they can use Cigati OST file viewer on any Windows platform of any version.

Download Cigati OST Viewer Software For Free

Least System Specification required to use the Software with ease and efficiency.

OST File Viewer Software Box
Software Download

Download the OST File opener utility tool to check the software working and performance.

Size 2.6 MB
Version 18.0
462 Ratings
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Upgrade to Pro Version

If users want to know the working of the software then they can download this tool for free. This utility has outstanding functionality to suit the needs of the users and offers a quick scanning feature. He/she can export OST file into HTML/TXT format as well and also open corrupt OST files. If a user wants to recover corrupted OST file and save OST into other formats like MBOX, MSG, EML, etc then he/she can opt for its pro version that will fulfill the above requirements.

System Specifications

Hard Disk Space
hard disk space



Supported Editions

Supported Editions


Comparison of OST Viewer & its Pro Version

Effective features of the utility tool to view and read OST file easily.

Features Demo Version Pro Version
Read corrupt and healthy OST files
Quick Scanning feature
Export OST file into HTML
Preview Multiple OST files
User-friendly GUI
Recover Corrupted OST Data No recovery
24*7 Tech Support & 100 % secure
Price FREE $89
Frequently Asked Questions
Follow the steps below:
  1. First, download & launch it and hit on open from the left top.
  2. Press on Browse to open OST files and then select the recovery mode in Recovery Settings and tap Ok.
  3. The scanning process will start. Wait for its completion.
  4. A message will pop up, just click on OK.
  5. At last, Click on the file and you can easily view all the data of OST files.
Yes, with the help of this application you can easily view and preview all your mailbox items like attachments and others.
Yes, off course. With the help of Cigati Offline OST data reader, you can easily select and preview multiple .ost files at a single go.
Oh yes, the OST file viewer freeware supports viewing of both healthy as well as corrupt Exchange OST files even without MS Outlook.
With the help of free OST viewer, you can easily preview offline OST files that are either encrypted or protected by highly complex passwords or both.
Client Reviews

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