OST to Office 365 Converter Tool For Moving OST Emails with Attachments to Office 365

This software helps users to migrate all the emails from the cached Outlook OST File to Office 365. You will just have to Add the OST file to OST to Office 365 Converter Tool, mark the emails that have to be migrated, choose Office 365 as the saving option, and authenticate the Office 365 login to convert OST to Office 365.

  • Converts OST file to Office 365 without missing any data.
  • Exports OST Emails and Attachments to Office 365 and maintains folder hierarchy.
  • Self-Instructive Interface for better performance and fast OST to O365 conversion.
  • High compatibility with all versions of Windows including Windows 11.
rating[User Rating 4.9]
OST to Office 365 Converter  Box
  • Moves all emails and attachments from an OST file to Office 365.
  • There are zero chances of data loss during the conversion process.
  • Transfers all folders and mailboxes of the OST file to Office 365.
  • Converts OST to Office 365 Online Archive, Public folder, and Mailbox.
  • Option to remove duplicates from the emails while converting the OST data to O365.
  • Supports all types of OST files created on any version of MS Outlook.
  • Compatible with Windows 11 and all earlier versions of Windows.
  • Attractive and Simple Interface for novice users to run the OST to Office 365 Converter Tool easily.

Need for the OST to O365 Migration Tool

See the situations when you need the OST to Office 365 Migration Software.

To Open OST File in Office 365

To Open OST File in Office 365

When a user has an OST file and he wants to open it in Office 365 then doing so without external help is a tedious task. Therefore, with the help of OST to O365 Converter, you can transfer all the data from the OST file to Office 365 and open and access all the emails in it.

Transferring Multiple OST Files to O365

Transferring Multiple OST Files to O365

It is not easy to move emails with attachments one by one from the OST file to Office 365. Therefore, in such a situation OST to Office 365 Converter Tool is the best option for you because it can convert multiple OST files to Office 365 in a single attempt.

Switching from Outlook to Office 365

Switching from Outlook to Office 365

When you want to switch from MS Outlook to Office 365 then the cached data of MS Outlook also has to be moved. So, in such a situation Converter for OST to Office 365 would be the best option. It will convert all emails of the OST File to O365 so it will become easy for you to switch from Outlook to Office 365.

Convert OST File Emails to Office 365


Follow three simple steps to convert Emails from OST File to Office 365:-

Exclusive Features of Converter for OST to Office 365


Quick OST to Office 365 Conversion

Quick OST to Office 365 Conversion

This software converts all the emails from an OST file to Office 365. It even moves attachments and all the folders present in the file without losing any data. You will just have to add the OST file to the software and choose the saving option as Office 365 for the conversion.

Converts Multiple OST Files to Office 365

Converts Multiple OST Files to Office 365

Now the tedious task of Converting OST files to Office 365 one by one has been eliminated by the OST to Office 365 Converter Tool. It can add multiple OST files at once and convert all of them together to Office 365.

Removes Duplicate Emails while Conversion

Removes Duplicate Emails while Conversion

If you have a lot of copies of the same email in the OST File then it makes it oversized and large. So, by using the Remove Duplicate Email option, copies of the emails will not be moved to your Office 365 account. This software will skip duplicate emails while converting OST to Office 365.

Previews OST File Emails before Conversion

Previews OST File Emails before Conversion

You are free to convert only selective emails from OST to O365. Before the conversion, the software will preview emails and ask you to mark those emails that you are willing to migrate to Office 365.

Maintains Folder Hierarchy in Office 365

Maintains Folder Hierarchy in Office 365

Various email folders present in your OST file will appear the same in your Office 365 account after the conversion. This software maintains folder hierarchy while converting the emails of the OST file to Office 365.

High Windows Compatibility

High Windows Compatibility

The OST to Office 365 Converter Software is compatible with all versions of Windows. It supports Windows 11, Windows 10, Windows 8, Windows 7, and all the earlier versions. Even it converts all OST files irrespective of the Outlook Version, it is created on.

Simple User-Interface

Simple User-Interface

The software interface is also simple so that a novice or non-technical user can use this software without taking any technical help. The conversion process has also been simplified because of the user-friendly interface.

Free OST File to Office 365 Converter

Free OST File to Office 365 Converter

If you want to evaluate the performance of this software then you can download the demo version. The demo version is free of cost and you will not have to pay any extra bucks to evaluate the performance.

Comparison of OST to Office 365 Converter Tool Full Version and Free Version

Check out the differences between the Free and Full versions of this software in the table given below:-

Product Features Free Version Full Version
Converts OST Files in Bulk to Office 365 50 Emails Per Folder All
Migrates All Emails with Attachments from OST File to Office 365 50 Emails Per Folder All
Option to Remove Duplicate Emails from the OST File
Maintain Folder Structure and Hierarchy
Option to Convert OST File Emails to Office 365 without Attachments
Date Range Filter Option
24*7 Tech Support & 100% Secure
Price Free $49

Money Back Gurantee

Feel Free to Purchase Products! We are committed to 100% customer satisfaction & security and thus we provide 30 days money-back guarantee. View Details.

Software Specification


See all the specifications of the OST to O365 Converter before you download this software.

Supported Versions
  • Processor: Pentium Class Processor
  • Minimum Memory: 512MB RAM (1GB Recommended)
  • Disk Space: Enough disk space to store data
Compatible Versions
  • Operating System: Windows 11, 10/8.1/8/7/, 2008/2012 (32 & 64 Bit), and other Windows versions.
  • Outlook: Office 365, 2019, 2016, 2013, 2010, 2007, 2003, 2002, 2000, 98, and 97.
  • Exchange Server: 2019/ 2016/ 2013/ 2010/ 2007/ 2003/ 2000/ 5.5 and 5.0.

The demo version of this utility, allows migration of only 50 emails per folder. For unlimited conversion of OST files into Office 365 purchase the full licensed version.

Single User License - Only for personal or single usage, not for corporate purposes.

Administrator License - Suggested for large Enterprises, Government organizations, and educational undertakings.

Technician License - Recommended for the technocrats or administrators who offer their services to other clients.

Enterprise License - For Commercial/ Business/ Govt./ Firm/Organization/Technical Usage

Mail Converter Tools

OST to Office 365 Converter

Frequently Asked Questions


Clear all your doubt related to the Converter for OST to Office 365 through the FAQ section given below:-

Yes, you can convert multiple OST files into Office 365 at once. The tool allows bulk conversion of OST files into Office 365

Here are the steps to convert OST to Office 365 using an OST to Office 365 File Converter Tool:

  • Install and launch the OST to Office 365 Migration Tool.
  • Select the OST file that you want to convert and click on “Open”.
  • Provide your Office 365 account credentials and click “Sign in”.
  • Choose the desired mailbox folder(s) you want to migrate.
  • Select the target location to save the exported OST file.
  • Click on the “Start” button to initiate the conversion process.
  • Wait for the process to complete, which could take several minutes, depending on the size of the OST file.

No, the software does not support corrupted OST files. You can repair the corrupted OST files by using the Exchange OST Recovery Tool.

Yes, OST to Office 365 Converter Tool is compatible with all versions of Windows including the latest one.

Yes, with the help of the advanced preview feature you can preview the OST emails before converting them into Office 365.

Software Review

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Software Suggest

The OST to Office 365 Converter Tool has an interactive interface that enables even a non-technical user to convert OST File emails to Office 365 without any problem.

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Soft32

Soft32 rates this software 5 out of 5 because it is the best OST to Office 365 Converter. It is very useful for Outlook users who are willing to move cached Outlook Files to Office 365.

Client Review

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