OST Converter Software

Expert Recommended

OST Converter Tool

An advanced solution to convert MS Outlook OST Files into multiple popular formats

  • Converts all components of an OST file i.e. emails, contacts, calendars, attachments, and other information
  • Efficiently converts OST files into popular file formats such as PST, MBOX, MSG, EML, etc.
  • Also converts OST into document formats such as PDF, HTML, TEXT, NSF, DOC, etc.
  • Converts and Exports large / corrupted / inaccessible OST files without any difficulty
  • Preserves and converts UNICODE OST to preferred format
  • Users can use the OST Converter tool without admin privileges
  • Converts OST files from multiple sources like Exchange, IMAP, Office 365 & Hotmail
  • OST Converter Tool is compatible with all editions of Windows OS

Live Free Demo: Download the free OST Converter to scan & preview your convertible mail items.

OST File Converter Tool

Why Choose the OST File Converter?

The OST Converter Tool is a true expert-favorite solution to convert your OST files with utmost proficiency and security. Whether you have an orphan, corrupted or highly damaged or inaccessible OST file, you can easily convert it with the help of this tool. This OST File Converter Software is packed with a surplus of advanced and upgraded features that make the entire conversion process simple and hassle-free. In addition to that, this utility comes along with various benefits.

  • Supports and Converts orphan, corrupted, and damaged OST files
  • Ensures topmost security and preservation of your data
  • Eliminates dependency of other applications
  • Retains and Maintains the folder structure & hierarchy of OST data
  • Compatible with all versions of Windows OS

Core Functionality

Prominent Features - OST Converter Tool

Different Options to Add OST File

The OST File Converter Software provides you with two different options to add your Outlook OST files. With these options, you can choose to add a single OST file or multiple OST files at once.

  • Select File: Using this option, you browse and add a single OST file from your system.
  • Search File: This option lets you search through one or all your system drives to add multiple OST files at once.

Different Scanning Modes

This OST Converter Tool provides users with two different scanning Modes to thoroughly scan the OST files. The two scanning modes this tool offers are as follows

  • Quick Search: This mode quickly scans your selected OST files and loads the data to the software panel.
  • Advanced Search: This scanning mode recovers and loads highly corrupted or damaged OST files to the software panel.

Export OST File to Multiple Formats

The OST Converter Tool is an unmatched solution to convert your Outlook OST to PST, EML, MSG, PDF, and HTML file formats in a secure and proficient way. This software is highly capable of converting all the components of the OST files including emails, contacts, calendars, tasks, attachments, and others. The utility converts your OST to popular formats in a quick and hassle-free manner. Upon conversion, you can open and access your resultant files in their compatible email clients easily.

Preview OST along with Meta Properties

Using this incredible OST File Converter, you can not only preview your OST file data before conversion but also view its meta properties as well. This software provides eight different Peeview Modes that you can switch between to view different meta properties of your OST file data. The preview modes offered by this utility are Normal Mail View, Hex View, Properties, MIME, Message Header, RTF, HTML, and Attachments. In these view modes, you can preview not only your OST emails but other components of the OST file as well.

Export OST of Any Size or Type

The OST File Converter doesn’t impose any file size restrictions at all. Correspondingly, you can, without any issue, upload any size of OST file and this utility can easily convert it into your preferred file or document format. Moreover, this OST Converter converts all types of OST files. Whether it is a corrupted, orphaned, inaccessible, highly damaged, password-protected, created by IMAP, Exchange, or Office 365 accounts, this software has no issue converting them into any of the provided formats. In addition, the utility effectively avoids any kind of data loss during the conversion process.

Convert OST Files in Batch Mode

With the OST Converter Tool, you get two options to upload your OST files to the software. Where the Select File option lets you add one OST File at a time, on the other hand, with the Search File option, you can add multiple OST files to the software at once. This tool can easily convert numerous OST files without any difficulty and that too while providing the utmost security to your OST file data. Moreover, this utility retains and maintains the folder hierarchy and structure throughout the process.

Decrypts the S/MIME or OpenPGP Encrypted OST

If the OST files you are adding are encrypted with S/MIME (Secured Multi-Purpose Internet Mail Extension) or OpenPGP (Pretty Good Privacy) encryption, then this utility can easily and effectively decrypt them. This OST Converter Tool is exceptionally capable of decrypting encrypted OST files without any difficulty. Upon Decryption, you can simply convert your OST files into any of the provided formats according to your requirements.

Supports All Versions of Windows OS & Outlook

The OST File Converter Software is compatible with all versions of Windows OS 11, 10, 8, 7, and other lower versions. It is an incredibly powerful utility that converts and exports OST files generated by all versions of MS Outlook. The supported versions of Outlook are 2021, 2019, 2016, 2013, 2010, 2007, 2003, and 2000. Therefore, this software can be installed on any system with any version of MS Outlook & Windows OS.

Software Specifications

Requirements to Launch OST File Converter

OST File Converter

OST Converter Tool

Version: 9.1
Size: 85 MB
Release Date: February, 2023
Software Download: Download Now Download Now

Trial Limitations:
Trial version of OST Converter software allows converting and saving the first 25 items from each folder of OST file.
Hard Disk Space: 100 MB of free hard disk space required
RAM: 4 GB of RAM (4 GB is recommended)
Processor: Intel® Core™ 2 Duo CPU E4600 @ 2.40GHz 2.39GHz

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

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

Product Guide:
Software Guide   Installation   Uninstallation   EULA  

Software Screenshots & Snippets

OST File Converter - Working Guide

download and run the OST Converter
click on add file to add OST data
preview OST data in eight different modes
choose a format and click export

Software Overview

OST Converter Free & Full Version


Trial Version

Full Version

Export to multiple File Formats

25 Items / Folder

Add OST File / Folder

Supports Corrupted & Damaged OST file

Quick & Advanced Scanning Modes

Orphan OST File Conversion

Support Windows OS 11, 10, 8, 7, etc.

Decrypts S/MIME and OpenPGP Encrypted OST

Preview OST Emails & their Attachments




100% Refund Policy



Look at How the Tool Works

Watch OST Converter Tool Video

We specialize in assisting customers

Examine the graph and ratings for the OST File Converter.



Customer Satisfaction


Output Accuracy


OST Converter Tool

Frequently Asked Questions

Follow the given instructions to convert your OST files using the utility:

  1. Download and launch the tool on your Windows OS system.
  2. Add your OST file/s by choosing either Select File or Search File.
  3. Preview your OST data in the eight different modes provided.
  4. Utilize the Advance Filters as per your requirements.
  5. Select your preferred format option and click on Export.

Yes, you can! The OST File Converter is compatible with all versions of Windows OS. So, no matter which edition you have, you can use this tool without any issues.

The Outlook versions supported by this software include MS Outlook 2021, 2019 2016, 2013, 2010, 2007, 2003, and 2000.

This Outlook OST File Converter supports bulk conversion, in addition to that, it does not impose any file size restrictions. Therefore, you can convert multiple OST files to your desired format at once without any difficulty.

Absolutely! This OST File Converter supports all kinds of OST files. Whether it is UNICODE or ANSI, this tool can convert it without any difficulty.

Of Course not! This Outlook OST Converter assures 100% data integrity and preserves the original data format throughout the conversion process.

What Our Clients Say About Us

OST File Converter - Customer Reviews