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Kdetools OST to Office 365 Migration Tool

A Perfect Solution to Convert and Import OST files data to Office 365, Online Exchange and Outlook PST Format

Quick Feature List » OST to Office 365 Converter

(Average Rating 4.5 Based on 98 Reviews) Dropdown Rating Distribution

5 Star                       (83)
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  • Securely converts emails, contacts, calendars, notes, journals, and tasks from OST to Office 365.
  • Imports Email Meta Properties such as To, Cc, Bcc, Sender Details, Date, Time, Subject and Attachments.
  • No file size limitation and converts oversized OST files of any size like 6GB, 11GB, 30GB, 73GB in just a few clicks.
  • The OST to Office 365 converter shows a preview of the entire OST file data right before the conversion.
  • The software maintains folder hierarchy and original form of items.
  • Converts corrupt orphaned, IMAP, and password protected OST files to Office
  • Exports OST items to PST, EML, EMLX, MSG, MBOX, vCard, and vCal file formats.
  • It has the 'Advanced Deep Scanning' option for corrupt, damaged, inaccessible, and orphaned OST files.
  • Supports all Windows versions like Windows 10, 8.1/8, 2007 and earlier editions.

*Free Trial Version will convert first 30 items of each OST file folder.

PDF Installation     PDF Uninstallation    PDF End User License Agreement

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Reviewed by

Experts Exchange

"KDETOOLS, a well known name now! It has gained lots of fame in just the span of few years in the online market world. Company created many trusted and superiorly working tools in the field of Data Recovery, Email Migration, Cloud Computing, etc."

Trust Pilot

"I am more than happy to comment for Kdetools because they helped me a lot to convert my file at very low price. There technical support team were support me all the time whenever I stuck at any point. In fact, they give a special discount on upgrading the license from personal to Business."


Significant Features of Kdetools OST to Office 365 Migration Tool

Exports OST File to Office 365 and Online Exchange Server

The software is designed with an advanced algorithm, which allows the users to import OST files into two major cloud servers such as Office 365 and Online Exchange Server. To perform the conversion, you just need to provide your server login details and start the conversion process.

Note: Your login details will be safe & private though our Security System.

Converts OST Files to Various File Formats

The OST to Office 365 software is a multi-tasking tool, which allows the users to convert OST file items and folders into various file formats such as Outlook PST, EML, Apple Mail (EMLX), Thunderbird (MBOX), MSG, HTML, vCard, and vCal.

Note: You can export OST contacts & calendars separately to vCard & vCal/ICS respectively.

Free Preview of the OST Files

The OST to Office 365 converter can provide a free preview to the users to check the OST file recovery contents before the conversion process begins. The user can also check that the software maintained the original folder structure while moving the OST file to office 365.

Note: Software maintains structure even after importing data into Office 365.

Exports Selected Items between Two Specific Dates

The OST to Office 365 converter software provides 'Date Filtration Option' and the user can select files between two specific date ranges and imports selected OST items and folders to Office 365. This feature makes the conversion easier and convenient.

Note: These are optional features and it depend your requirement to use them or not to use.

Supports Converting Complete OST Items

The migration tool can move all OST items such as emails, contacts, calendars, notes, tasks, journals and folders. The tool also maintains Emails Meta Properties such as To, Cc, Bcc, Sender Details, Date, Time, Subject and Attachments.

Note: Tool can convert data from corrupt, orphaned, damaged, IMAP & Offline OST.

Microsoft Outlook and Exchange is not Required

The OST conversion software is designed with an advanced algorithm so it doesn't require Microsoft Outlook and Online Exchange Server to install on your machine for OST to Office 365 migration.

Note: You just need an .ost file and correct Office 365 login details to done the conversion process.

Try KDETools OST to Office 365 Migration Tool for 100% Safe Conversion

PDF Installation     PDF Uninstallation    PDF End User License Agreement

*Free download enables you to check OST file contents and save initial 30 messages.

System Specifications

Support : Windows 10, 8.1, 8, 7 & all below Windows version
Processor : Intel® Pentium 1 GHz processor(x86,x64) or equivalent
RAM : 2GB of RAM is recommended
Hard Disk Space : Minimum 100 MB for installation is required

Note: If you need to customize OST to Office 365 Converter or need additional features then, Contact Support staff

Supported Editions

Microsoft Windows
2000, 2003, 2008, XP, Vista, or Windows 7/8/8.1/10, 2008/2012 (32-bit & 64-bit)
MS Outlook
Outlook 2000, 2003, 2007, 2010(32/64 bit), 2013 (32/64 bit), 2016 (32/64 bit), 2019
Support recovery of OST file of 32-bit & 64-bit New

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