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OST to Office 365 Converter
The Magnificent Solution to Migrate OST to Office 365 Web Application

(Try the most appreciable tool to upload OST to Office 365 email account by migrating OST file to Office 365. It easily converts offline OST files to O365 and enables user to import cached Exchange server OST file to Office 365.)


$49.00 to Buy (Buy it Now)

Exceptional Features of OST to Office 365 Converter

ost to O365

Completely Migrates OST to Office 365

OST to Office 365 converter is the straightforward solution to perform the migration from OST to O365. It easily moves OST items to Office 365 web application in few moments by converting OST file to Office 365. The tool ensures users to export OST data items such as OST emails, contacts, calendars, notes, and much more for Exchange online.

maintain data integrity

Retains Data Integrity

The tool consists of multiple advance features which enables user to import OST file to Office 365 in few moments by maintaining the data integrity. It ensures user to extract OST data items to Outlook 365 account by preserving the data integrity even after the migration process. It safely maintains the originality of entire OST data items even after performing the conversion process.

batch conversion

Bulk Conversion of OST Files to Office 365

In order to convert multiple OST files to O365, the tool offers “Add Folder” option by which users can batch export OST to Office 365. It instantly export OST data to Office 365 at once which saves lots of user’s effort and time. It also enables user to convert even a single OST file to upload OST to Office 365. Overall, it is the simple and single click solution to convert OST to O365.

inaccessible file

Supports Inaccessible OST File

The tool has been designed by using robust algorithms to perform the conversion process. It has special techniques which allows user to convert their hard/soft deleted emails, inaccessible file, encrypted files, corrupted/crashed, password-protected files, etc. for Outlook Web Access (OWA). The utility automatically converts any OST file along with embedded data items for online Outlook.

create new folder

Saves Resultant File at Desired Location

The utility quickly converts OST to Office 365 which enables user to select OST file and choose the desired file location in the system. Users can choose any location in the system to save resultant file. The tool also offers to create a new folder through software panel to save resultant file. It helps user in uploading OST to Office 365 web application.

auto detect

Instantly Auto-Detects OST File

The software has the capability to move OST to Office 365 directly in a few clicks. The tool can auto-detect OST file from the default location of the system to choose desired OST file. Any user can browse and choose OST file which needs to be converted and perform the migration from OST to Office 365. It saves lots of efforts of users while choosing OST file during the conversion process.

easy to use

Simple to Use Interface of Utility

The software has been especially designed for non-technical users to perform the migration from OST to O365 in few moments. The tool has easy to use interface which can be performed by any user in a few moments. Moreover, it is the safe and the reliable solution to export OST to Office 365 email account.

supports outlook

Supports All the Latest version of Outlook

The utility is passed through the robust algorithms which allows user to convert OST files of any version of Microsoft Outlook. Moreover, the utility is compatible with all the latest and earlier versions of Outlook. It supports Outlook 2016, 2013, 2010, 2007, and all below versions.

Few Queries About OST to O365 Converter

How to convert OST to Office 365 along with attachments?

“I am using Outlook since 2 years, but the problem arises when my OST file was unable to synchronize with Exchange server. Sometimes, it may cause irritation when the OST synchronization issue arises again and again during work time. So, I am looking for a relevant solution to use offline OST file without any error.”

However, OST synchronization is a well-known issue for users which forces user to switch their email client. Outlook is always an outstanding email client to manage their email data. Users can also use another alternative Microsoft Outlook Office 365. It is the safe solution to access entire services of Microsoft at one place. To move OST to Office 365, user need to choose OST to Office 365 converter which directly imports OST file to Office 365 account in few moments. It enables user to access their entire data items of OST offline data file in Office 365 web application.

How to Move OST File to Office 365 in an easy way?

“Recently, I encountered an error while accessing my OST file in Outlook. It results an error while opening OST file in the absence of Exchange server. I don’t how to overcome from this error. Please suggest a direct solution to access my OST file that could help me."

In several cases, it is impossible to access OST file without any connectivity to MS Exchange server. To open OST file and save it at safe place, experts recommend to switch from Outlook to Office 365. It is the most reliable place to access entire Microsoft services at one place. There several advantages of using Office 365 email account which allows user to access their Outlook data from anywhere and at any time. There is no risk of data loss or corruption and much more. Users can move OST file to O365 by using third party utility OST to Office 365 converter.

How to Upload OST File to Office 365 in an efficient way?

“I have old OST file of Outlook 2010 as a backup which I wants to migrate to Office 365. Now, I am looking for the relevant solution to upload OST to Office 365 to access my old emails of OST backup file in Office 365 email account."

In any case, if you have OST file as a backup and looking for the suitable solution to export OST file to Office 365, then you must need to choose the third party utility OST to Office 365 Converter which enables user to import OST file to Office 365 account in a few simple steps. Overall, it is the recommended solution for users to import their OST file directly in Microsoft Office 365 account.

How to Import OST files to Office 365 email account?

“Recently, my Outlook has been corrupted and tried to import OST file back in MS Outlook. But Outlook is failed to import OST file in Outlook. Give me another alternative to access my OST data from anywhere at any system.”

However, Outlook is not allowed to import OST file back in Outlook due to its own policies. But users can choose Office 365 email account to manage their OST data of Microsoft account. It is the suitable solution to access OST data in Office 365 which is so secured and there are no file size limitations for user to save their data. It is a cloud based platform which allows to access their data from anywhere on any system.

Guide - OST to Office 365 Wizard

How to Import OST to Office 365?


Launch OST to Office 365 Converter in the system to initiate the conversion process.

start software


Now, users need to browse and select the desired OST file/folder from the system and proceed to next step.

select ost file


Now, choose the destination location to save the resultant file at desired location.

Choose destination location


In the last step, users need to click on Convert button to complete the migration from OST to Office 365.

click convert button


After completing the required steps, user will get their complete OST file and quickly imports OST file to Office 365 in couple of seconds.

Completed successfully


In few moments, the tool automatically exports a resultant folder in front of users.

Conversion completed

Program Name:
OST to Office 365 Converter
File size:
3.42 MB
Program Type:
System Requirements:
Pentium II 400 MHz, 64 MB RAM, Minimum 30 MB Space
Operating System
Windows 10, 8.1, 8, 7, Vista, XP, etc.
Windows Server 2016, 2013, 2000

Trial Edition

In the trial edition, OST to Office 365 Converter offers user to migrate their first 25 items from each folder of cached Exchange server OST file/folder to Office 365. It offers the complete package of Licensed edition features in a trial version too to evaluate the entire software deeply.

100% Safe & Secure

100% safe and secure

Yes, the tool enables user to import OST file to Office 365 directly without any issue. It allows user to upload OST file of any Outlook version i.e. Outlook 2016, 2013, 2010, 2007, and all below versions.

No, the tool easily export OST mailbox to o365 mailbox in few moments without losing any data. It does not required any installation of Exchange server or Outlook email client in the system to perform the migration process.

No, there are no file size limitations for converting OST file to O365. Users can instantly export and move as many OST files as they want to Exchange Online in few moments. It offers batch mode to users to convert multiple OST files at once.

Yes, the software is capable to export inaccessible OST mailbox data to O365 email account. It easily supports orphaned, cached Exchange server, crashed, offline OST file to office 365 without any extra efforts.

Yes, the tool has ability to maintain the data integrity even after the migration process. It easily maintains the data integrity and folder hierarchy to save the data in its original structure.

What Says Our Client

Customer's Satisfaction is Our First Priority, Here is What Our Customer Thinks About Us

Order OST to Office 365 Converter

Order Full licensed version of OST to O365 tool for converting Exchange OST mailbox to OWA account in a few seconds. Before ordering the full version, you must try the demo edition and then purchase the licensed edition.


We Accept All Major Credit Cards along with PayPal Account

accept all major credit cards and paypal accounts

For Home User



  • Suitable for Home or Personal Use
  • Valid for 2 Machines
  • Lifetime License, No Expiry
  • Valid on Single Geographical Locations
  • One Year FREE Product Updates

For Corporate



  • Suitable for Commercial Use
  • Valid for Multiple Machines
  • Lifetime License, No Expiry
  • Valid on Multiple Geographical Locations
  • One Year FREE Product Updates
Note: After purchasing you will receive license details through an email within 30 minutes. Mention a working and correct email address while ordering.

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Reviews of OST to Office 365 Converter

Rated 4.1/5 based on 8 customer reviews

Clinton commented on Apr 12, 2017

Recently, I need to export OST mailbox to Office 365 email account but I don't know how to move OST to O365. Then, I came to know about OST to O365 converter which successfully exports OST file to MS Office 365 in few moments.


Ellie Duke commented on Mar 20, 2017

Ici, j'ai eu une solution pour exporter OST vers O365 qui fonctionne parfaitement pour moi. Il me permet de migrer le fichier OST vers O365 d'une maniere simple. L'utilitaire facile a utiliser telecharge rapidement les donnees OST vers le compte Microsoft Office 365 d'une maniere simple.


Jimmie commented on Feb 12, 2017

Excellent solution!!! The tool enables me to import OST to OWA account safely in a few moments. It smoothly converts my OST file of 10+ GB to O365 in 100% accurate result. OST to Office 365 converter helps me to migrate OST to Office 365 in a couple of clicks.


Daphne Walls commented on Dec 16, 2016

Einfache Lösung !!! Vor kurzem schaue ich, um OST ins Büro zu laden 365 aber habe keine Ahnung, den Umwandlungsprozess durchzuführen. Dann mein Freund schlägt mir vor, OST zu Büro 365 Konverter für perfekte Ergebnisse zu verwenden. Wenn ich dieses Tool benutzte, verschiebe es direkt OST zu O365 Postfach in ein paar Klicks.

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