OST to O365 Migration Tool


OST to Office 365 Migration Tool

An easy to use OST to Office 365 Conversion software which allows uploading of OST to Office 365 with entire data like; Emails, Contacts, Calendars and Attachment etc. Simply download OST to Office 365 converter and move offline file data into Office 365 online account.

(Average Rating 4.8 Based on 114 Reviews)
  • Export OST to Office 365 PST format and restore deleted data from Offline mailbox
  • Category-wise facility to import OST folders to Office 365 platform
  • Preview all e-mails & attachments prior to moving OST to Office 365 account
  • Outlook or Exchange connection is not required in order to Migrate OST file to Office 365 off premise
  • Provides Date filter option to import OST file to Office 365 with 100% secured migration
  • Does not restrict for size limit and upload OST to Office 365 by maintaining original folder structure
  • Import Exchange Server OST to Office 365 & Hotmail OST files to Office 365/ PST account.
  • Compatible with all Windows based OS; Windows 10, 8.1, 7, Vista, XP & all earlier versions.

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Why Migrate OST to Office 365 (Live Exchange)?

Microsoft offers a valuable cloud based service named as Office 365 email platform. It’s a cloud based platform which provides web-enabled access to email, important data on almost any device —including PCs, Macintosh computers, iPhones, Android phones, and BlackBerry smartphones. Office 365 uses the same features used in Microsoft for maintaining safety and security. Let’s see the common reasons behind OST to O365 migration are;

  • No need to depend on local server for accessing of data
  • Having low cost and easy maintenance
  • Easily collaborate inside and outside of organization
  • No need to steup hardware
Why Migrate OST to Office 365

How to Move OST File to Office 365 Account?

If you want to access OST file in Office 365 then firstly you need to convert OST to Office 365 PST extension and then import them into Office 365 email profile. However, it’s tough task if you have number of OST file to be imported to Office 365 platform. It’s recommended you to implement conversion technique of EmailDoctor OST to Office 365 Converter to import all or selected OST’s emails, contacts, calendars and attachment etc to Office 365 easily. In order to migrate OST to Office 365 account using this OST to Exchange Office 365 Importer, a user can follow the steps mentioned below:

Important Features of OST to Office 365 Converter Tool

Add & Scan Orphan OST File to O365

OST to Office 365 Conversion Software uses special technique to browse OST file even if OST has corrupted. You can browse and add OST file from any location to upload OST to Office 365 environment in hassle free way.

Previews OST Data Before Exporting to O365

OST to Office 365 Migration Tool presents preview of OST file along with attachments before converting OST to Office 365. The utility is designed in such a way that, It provides previews of all data items stored in the OST file such as emails, journals, notes, tasks, contacts, etc.

Import OST to Office 365 Account

It’s an instant solution which organize date faced filtering to import OST file to Office 365 platform. Just by choosing Export option of software, user will able to upload OST to Office 365.

Maintains Folder Structure During Uploading Files

The OST to Office 365 converter Software uses special procedure to preserve meta data (to, cc, subject, size, etc) of OST file while moving offline ost messages to Office 365.

Export Selective Items from OST to O365

Users can upload only selected items from OST file to Office 365 just by selecting the emails. There exist date filter option to migrate OST messages to Exchange Online according to specific date range.

Keeps Care About Original Mail Property

The tool to import OST to Office 365 does not alter the originality of OST file items like To, CC, Bcc, Subject and From etc. Users can access original offline .ost data without any hurdle.

Export OST to Office 365 of Any Size

OST to Office 365 Tool application offers a flexibility to select OST file of any size and scans corrupted OST file for importing them into Office 365 account. You can use free demo version of this software to understand the working.

Upload OST to Office 365 Without Outlook

OST file to Office 365 importer is an independent tool and does not requires setup of Exchange Server or Outlook to Move OST to Live Exchange Office 365 platform. Simply download the free demoversion of the OST to Office 365 tool and get your job done.

OST to Office 365 Converter - Screenshots

Launch the application
Add File in the software
Preview OST file emails
Migration Completed

Specifications of OST to Office 365 Migration Tool

Ultimate Way To Export, Move OST to Office 365 Account in hassle free way on Win OS

Download Software

Size: 35.4 MB

Version: 8.0

Trial Limitations

The free demo version of the utility migrate only 25 Items / Folder from Outlook data file.

System Specifications

Hard Disk Space
100 MB of free space required on hard disk

500 MB of RAM (2 GB is recommended)

1GHz processor (2.4 GHz is recommended)


  1. Microsoft .NET framework 4.5 or above should be installed. If you are using Windows 10/8.1/8/7 or Vista, then please launch the tool as "Run as Administrator."
  2. Exporting in Office 365: Admin account of Office 365 must be Impersonated, if migrating to Admin account.
  3. For Remove Email Encryption option:
    1. Certificates and respective password to decrypt SMIME encrypted Emails.
    2. Private Keys and respective password to decrypt OPENPGP encrypted Emails.

Supported Editions

  • Microsoft Windows – 2000, 2003, 2008, XP, Vista, Windows 7/8/8.1, 2008/2012 (32-bit & 64-bit), Windows 10 (32-bit & 64-bit)
  • Microsoft Outlook - 2000, 2003, 2007, 2010 (32 / 64 bit), 2013 (32 / 64 bit), 2016 (32 / 64 bit), 2019
  • Office 365 Licenses - Exchange Online Plan 1 / Plan 2 & Enterprise E1 / E3 / E5 / Business Premium / Essentials & Office 365 A1 / A3 / A5 / F1


Question: Is your Anti-Virus blocking the software export proccess?

Solution: Please Disable Anti-Virus Temporarily / Allow access (Whitelist) from Anti-Virus Settings for proper working of the software.

Question: Unable to Create Output in Destination?

Solution: Please avoid source from NAS, SAN, Network or Shared Drive. Source File should on migration machine to perform successful migration.

Electronic Delivery

The delivery of product is automated.You will receive an email containing both the link to download the product and the activation key within few minutes after payment confirmation.

Order - Outlook OST File to Office 365 Conversion Utility

Get an Overview of DEMO & Licensed Version

Features DEMO Version PRO Version
Add Multiple OST Files

Scanning Modes Quick and Advanced

Preview OST file Emails

Remove S/MIME and OpenPGP Encryption

Compatible With Windows 10, 8, 7 and below version

Migrate Outlook OST to Microsoft Office 365 25 Items/Folder
Cost FREE $49

Frequently Asked Questions

Listed Commonly Asked Questions and Answers

Simple Steps to Migrate OST files to Office 365 Application

  • Step 1: Download & Install OST to Office 365 Migration Tool.
  • Step 2: Add the OST file in the Software.
  • Step 3: Preview and select the OST file emails to migrate.
  • Step 4: Click on Export button to perform OST to Office 365 Conversion.
OST recovery Image

No, it is not mandatory to have a connection with Exchange Server and MS Outlook installed on the machine to move OST file to Office 365.

Yes, you can check the Mail option in Categories field from the Advance Settings, the tool will import all emails only from OST to Office 365 account.

Yes, the OST to Office 365 Migration Wizard keeps the folder hierarchy intact original even after process completion.

No, you are not allowed to use this application on Mac OS. It is a Windows-based application and can be run on that only.

You can simply upload OST file into Office 365 mailbox. Simply use this OST to Office 365 converter. It will provide you .pst file of your .ost file. After that simply import the output file in Office 365.

Yes, the OST to Office 365 Migration Wizard keeps the folder hierarchy intact original even after process completion.

What Customers Are Saying

Client Reviews on OST to Office 365 Migration Software

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