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4n6 Software
OST Converter Tool

Microsoft MVP's trusted OST Conversion Tool to Export OST Files In Easy Steps

Software Rating (Average Rating 4.9 Based on 1551 Reviews)

  • Successfully Supports Bulk Conversion to Export Multiple OST Files at Once
  • Easily Extract Email Addresses and Phone Numbers from Outlook OST Files
  • Use Quick and Advance Search feature of OST Conversion Tool for the ease
  • Export OST Emails, Contacts, Calendars, Tasks, Notes, and Other Data Easily
  • Maintains Folder Order, File Header, & Email Header During OST Conversion
  • Supports to Convert OST Files to Another Format with Attachments and Headers
  • Not Required: Exchange Server, IMAP Server, and Outlook Application Installation
  • OST Converter Supports to Convert Selected Outlook OST Files to Computer
  • Convert Inaccessible, Encrypted, and Orphaned OST Files without Limitation
  • Download OST File Converter Tool and Install on Windows 11 & Below Versions

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Free Demo Limitation: 4n6 OST Converter Tool Free Demo will Allow Users to Export Only 10 Files

ost converter

Best OST Conversion Tool Free

OST Converter Tool Supports Multiple Export Options

This is a one-stop solution for IMAP Outlook users. The tool allows users to simply export the entire data from OST files into email and document file formats. Let's go over all the export options:

ost converter different preview modes

OST Conversion Tool Offers 5 Preview Modes

There are 5 different preview options in 4n6 OST Converter Tool. Users can now preview data before exporting it in any format. You can view the data in Content, Properties, Message Header, Hex View, and Raw Message preview mode.

4 Steps to Perform OST File Type Conversion

  1. Download OST Converter Tool and Install on Your System
  2. Browse OST File into Software Environment
  3. Select the desired Export Option from the Opened List
  4. Select Path to Save the resultant File After OST Conversion

Software Features

4n6 OST Converter Tool Explore the Main Features

Convert Outlook OST Files in Batch

Convert Outlook OST Files in Batch

4n6 OST Converter Software is the most reliable, fastest and easiest solution for users to convert OST files. The application offers tons of advanced and attractive features for accurate and fast conversion. Batch conversion is one of them. With the help of batch conversion tool, you can easily export multiple OST files to another platform simultaneously. Now, there is no need to browse and select OST files one by one to perform conversion. So, if you are in need to convert OST files without wasting time, it is a right solution for you.

Export OST Email Data with Headers

Export OST Email Data with Headers

This OST converter tool is developed to cater to all needy users at the same time. With this solution, you can easily convert complete OST file data without losing any information. The application successfully supports converting OST emails, contacts, calendars and other data. Apart from this, it also allows you to convert OST file data including header information. OST conversion software provides an option that allows you to convert OST files containing header information. This feature is very helpful for forensic investigators.

Dual Mode Feature of OST Converter Tool

Dual Mode Feature of OST Converter Tool

OST Converter tool allows users to access the OST Data files in the following two ways:

  • Open Configured Outlook OST Files: This preference can be chosen by the user if they want to automatically open the previously configured Offline Data File (OST ) along with other files such as NST, BAK & ZDB which is associated with their Outlook account.
  • Choose Folder / Files: This preference can be adopted by the user if they want to browse or select the OST file that is available in folder format on your PC or desktop.
Extract Options of OST Conversion Software

Extract Options of OST Conversion Software

The software also has an excellent feature to extract properties from OST files.

  • Email Addresses: This factor allows the user to extract Email Addresses from OST files in Text file (.txt) format.
  • Associated Email and Phone Numbers: This feature of OST Conversion Tool allows the user to extract the previously associated or configured Emails and Phone Numbers in the CSV file format.
  • Attachments: This factor allows the user to extract all attachments from OST files to required place.
Enables Compact View for OST File

Enables Compact View for OST File

4n6 OST Converter Software includes an advanced option called "Compact View" that allows you to check only the OST files you want. When you run OST converter tool on your Windows machine, all of the folders will be displayed on the left side. The user can view the desired folder after enabling the option. This feature allows the user to view Offline Storage.ost files in a precise manner. The user can also view a few important options such as Important mails, drafts, Inbox mails, sent mails, Spam, Trash, and so on.

Export Attachments and Save Separately

Export Attachments and Save Separately

This OST format converter tool can export all OST file attachments as well as emails. To open and save attachments, the user must right click on them. If your email contains multiple attachments, select the Save All option. If you have several attachments in a single email, you can save them all in one location. The software enables the Extract >> Attachment option, which allows users to export Attachments separately in their original file format. By enabling or disabling this option, users can view or hide the detailed hierarchical folder structure.

Advanced Search Option Available
Advanced Search of OST Converter Tool

OST converter has an advanced feature that allows the user to easily search for any type of data within the Offline Storage.ost file. This option is available in the application's right top corner, indicated by a search icon. When the user clicks on the icon, he or she will be able to view various search options such as Emails, Calendars, Contacts, Journals, Tasks, and Notes, as well as the option to search them all at once. This software aids in the search for specific search content based on the date the content was created or viewed. As a result, users can only export Searched messages from OST files.

Export Outlook OST Files Independently
Export Outlook OST Files Independently

Stand-alone OST converter software is designed to convert unlimited number of OST files without installing Microsoft Outlook on the same machine. This software has been thoroughly tested and produces accurate results. If the user has an inaccessible OST file, this Outlook OST converter tool will recover it. The software is compatible with all versions of the Windows operating system. You can use this advance Outlook OST Conversion App on any version of Windows such as Windows 11, Windows 10, Windows 8.1, Windows 8, and more.

Convert OST Files with All Components
Convert OST Files with All Components

OST Converter Software for Windows is a complete and reliable solution. Data from OST files is exported to a variety of file formats, including all email attributes and properties such as cc, bcc, date, time, inline image, attachment, and so on. It includes a simple graphical user interface that can be used by all types of users, including technical, non-technical, professional, and others.

Wide Range of Compatibility
Wide Range Compatibility of OST Converter

Outlook OST extension converter works well with Microsoft 365, Outlook 2019, 2016, 2013, 2010, Exchange accounts, IMAP accounts, and Outlook.com accounts. Download the free demo version to test compatibility. It does not impose any size restrictions when converting OST files. You can browse any size OST mailbox in the software environment and complete the conversion successfully.

Software & Hardware

Learn About the OST Converter Tool Basic System Requirements

Software Download

Size : 45 MB

Version : 3.2

Trial Limitations

Free OST converter has limitation to convert first 10 emails from each folder of OST file. Buy OST file extension converter full version for complete data conversion.

System Specifications

Hard Disk Space
100 MB of free hard disk space

1 GB RAM (2 GB is Recommended)

Processor with a speed of 1 GHz (2.4 GHz is recommended)

Supported Editions

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

Electronic Delivery

The delivery of 4n6 OST converter tool is automatic. You will receive an email with the link to download the OST File Extension Converter and the activation key within a few minutes after the payment has been confirmed.

User Reviews & Industry Recognitions

OST Conversion Tool - Reviews from Experts
CNET Reviews and Award

Our team tested 4n6 OST Converter and found it to be the best for Windows users to export offline OST files without facing issues. We are very grateful to the 4n6 team for developing such a powerful, fast and most secure application to convert OST files including attachments, headers and other data.

SOftware Informer Reviews and Award

Software Informer
We want to give 4n6 OST Converter 5-start rating because of its amazing features and workflow. We found this solution to be unique because of its amazing and powerful features. Recommended for Windows users who own OST files and need to convert OST files accurately.

Working Steps

4n6 OST Converter Software Complete Screenshots
best software
choose ost files
select export option
add destination path
ost conversion completed

4n6 Software Video

OST Converter Software - Online Video

Conversion FAQ

OST Converter Tool - Clear Your Doubts Here

4 Steps for OST Conversion Tool:

  • Step 1: Download OST Converter Software Free and install.
  • Step 2: Browse Offline Outlook Data File (.ost) Files/Folders
  • Step 3: Click the 'Export' button and Select Export File Format
  • Step 4: Enter a local location, enable "Include Email Headers" option.
  • Step 5: Click on the Save option to Start OST Conversion

Yes, this OST converter tool is compatible with Outlook 2021 and all below versions.

Yes, you can extract all the associated email attachments and save in their native file format.

Yes, you can convert your calendar folder to multiple file formats. Simply download OST converter and launch on your system.

Yes, this OST converter software is compatible with all the versions of the Windows operating system.

No, 4n6 OST converter is a stand alone software that does not require any supportive application.

Yes, 4n6 ensures malware free utility with digital signature. 4n6 OST file type converter is digitally signed and safe to use on any Wondows OS versions.

Client Reviews

OST Converter Tool - Verified Purchase Reviews