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OST to PST Converter

(Top Rating 4.9 Based on 1639 Review - TrustPilot

Free OST to PST Converter is a well-designed software with advance algorithm and reliable method to Convert OST to PST Outlook in 2021, 2019, 2016, 2013, 2010, Office 365, Gmail, Exchange Server, MBOX


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Software Steps:- How it Works

Mac OST to PST

KDETools OST to PST Converter

(Average Rating 4.9 Based on 1639 Reviews)

OST to PST Converter

The OST to PST Converter tool is equipped with advanced features that allow a direct conversion of OST to PST format safely. The users can rest assured as the powerful OST to PST Converter tool imports the entire OST mailbox items to Office 365, Exchange Server, Apple Mac, Thunderbird, MSG, EML, PDF, MBOX etc

  • Quickly Scan & Repair Corrupted & Damaged OST files
  • Batch Mailbox Migration from OST files [single or multiple] in Bulk.
  • Save OST files in PST, MBOX, EML, MSG, HTML, vCard, and ICS, CSV.
  • There is no limitation - Converts any Sized and unlimited Users of OST files
  • Convert OST database with email, contacts, attachments, calendar, folders
  • Migrate OST to Gmail, Gsuite & Google Mail directly.
  • Maintains same OST folder hierarchy with same HTML and text formatting.
  • Option to split the large OST files to PST by Size during OST to PST Conversion.
  • Import OST files to Office 365 Cloud and Exchange Server 2019, 2016, 2013,
  • Supports Microsoft Outlook 2021, 2019, 2016, 2013, 2010 and 2007 etc.
  • Tool compatible with Windows 11, 10, 8, 7, & XP etc

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 Installation    Uninstallation    End User License Agreement

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Reivew OST

KDETools OST to PST Reivew

30 Money back
Money Back Guarantee

OST to PST Converter Supported 30+ Saving option

Outlook PST

Microsoft Outlook Data File

Office 365

Microsoft 365 (Email Web Client)


Google Mail (Email Web Client)

Exchange Server

Live Exchange Server

Apple For Mac Mail

EMl Live Mails

IMAP Server

IMAP Mail Server

Yahoo Mail

Yahoo Mail Server

Hostgator WebMail

Hosting Server

Outlook Mail Server


Single Mail Message


Single Mail Message (Mac Mail)


Single Mail Message (Outlook)


Web File Format


*.mbox (Collection of Email Messages)


(Comma Separated Value)
Plan Text File


vCard (Electronic Business Card)

ICS (iCal)

ICS (Store calendar information)


Portable Document Format


TXT File Extension


Lotus Notes Data File


Zimbra Desktop Data File


Outlook for Mac File Format

Administrator Edition Discount link Valid in Today

Software Benefits and Key Features

Batch OST to PST Converter for [Unlimited Files]

Batch OST to PST Converter [Add Multiple file at one go]

The Batch OST to PST Converter software supports the Bulk Mailbox Migration that allow the user to converts multiple OST files to PST format in bulk. The user can select unlimited numerous of OST files and will convert OST files to PST formats in one go without any modifications.

  • Add 'Single OST File': Option: This option allow to Add Single OST files
  • Add 'Multiple OST Files' Option: To Add multiple users from Offlie OST folders at one go.

Convert Exchange OST to 30+ different Mail Server

Converts OST to 30+ different Mail Server

The OST to PST converter converts OST files to different file formats such as Outlook PST, MBOX, MSG, HTML, EML, EMLX, vCal, vCard, Office 365, Exchange server, Gmail, G suite, Google Mail and etc. The tool performs a safe conversion of files without losing any file.

The user can convert OST files to IMAP Mail Server, Exchange Server Live, Office 365, Apple for Mac, Thunderbird, Windows live mail, Godaddy, Yahoo, Hostgator,, by using OST to PST Converter tool. After the conversion, the user can access the data without any hassle.

Directly Convert OST to Office 365 with Multiple User

Directly Migrate OST User to Office 365 with Multiple User

The OST to Office 365 Converter 100% safely and securely directly migrate OST to Office 365 account by [Access Global Admin Account with Mapping Option]. The users can perform the process without risking the security of OST mailbox items as the software ensures 100 % secure results. The users just need to install the tool on their machine and start the importing process from OST to Office 365 account. Ensure that you submit your Office 365 account credentials such as password and username correctly.

  • Enter - Email ID::
  • Enter- Password:
  • Click to "Connect Server" to [Office 365] Account
  • Now, click on "Convert Now" Button" to Start Conversion

Move Offline OST to Exchange Server 2019 | 2016 | 2013

Convert OST to Exchange Server 2019 | 2016 | 2013 | 2010

The OST to Exchange Server Converter ensures its users perform a 100 % successfully Migrate OST to Exchange Server 2019, 2016, 2013, 2010, 2007, 2003. The advanced software allows the users to import OST to an Exchange Server account after submitting their Domain Name, username, password, Exchange Version, etc. The software can be used even by a beginner as the steps are easy to perform.

  • Domain Name/IP
  • Select Exchange Version 2019 | 2016 | 2013 | 2010
  • Enter IP, Email ID & Password
  • Now, click on "Connect Server" to "Convert Now" Start

Import OST to Gmail | G-Suite | Google Mail

Import OST to Gmail | G-Suite | Google Mail

OST to Gmail Migration - the users can execute a safe yet fast migration from OST to Gmail, Google Drive, and GSuite. The OST to Gmail Migrator software enables the users to directly migrate OST to Gmail, GSuite, and Google Drive without deleting a single mailbox item. The users can migrate their entire OST mailbox items to Gmail and GSuite after submitting their respective account details correctly..

  • Connect to Gmail IMAP Server

Convert OST Mailbox to MBOX Thunderbird

Migrate OST to Thunderbird Securely

The users can also perform a secure and successful conversion by using the OST to MBOX Converter to convert OST to MBOX file format directly. The users after launching the powerful software on their system can select the desired OST items which they wish to convert to MBOX format at the desired location. The users need to implement a few basic steps and complete the conversion process from OST to MBOX in no time..

Export OST Calendars to vCal [.ics] Individually

Export OST Calendars to vCal [.ics] Individually

The OST Calendar to PST Converter Tool allows the user to convert multiple OST calendar items to vCal only [Calendar] format safely. By using the tool, the user can migrate to the Calendar Attachments, Data, Meetings, Appointments, and etc. to vCal file type without altering the data.

Splits Resultant PST Files Into a Small File

Splits Resultant PST Files Into a Small File

The OST to PST Converter tool provides you Spliting option to split the resultant Large PST files into a Similar PST's files:

Split By Size | Date | Year | Folders: The tool enables the user to split the PST file size starting from 1 GB to 25 GB. The user needs to select the file size depending on their requirements.:

'Migrate OST to [Apple for MAC]

'Migrate OST to MBOX [Thunderbird | Apple for MAC]

(The OST to Apple Mail Converter is integrated with robust options that enable the users to migrate OST to Apple Mac Mail securely and directly by executing only a few steps.

(The users can rest assured as the tool guarantees its users to perform a successful and secure migration process from OST to Apple Mail Mac directly.

Convert OST Contacts to vCard [.vcf] Individually

Convert OST Contacts to vCard [.vcf] Individually

The OST Contacts to PST Converter to converts multiple OST contacts to vCard *vcf [Contacts/Address Book] format. The tool performs a secure conversion of OST contacts to the vCard format without data loss. By using the tool, the user can view the contact details such as name and date of birth. .

'Recovers Corrupted and Inaccessible OST Files

'Recovers Corrupted and Inaccessible OST Files

OST Recovery and Migration application provides advanced dual scanning mode and recovery/conversion of OST options and helps the users to Recovers Corrupted or Damaged, Highly-encrypted, and password protected OST files.

*Software automatically detects and fixes OST corruption issues.

Export Selective OST Items to Multiple Formats

Export Selective OST Items to Multiple Formats

The verified OST to PST Converter comprises the 'Selective Item' option that facilitates the users to export selective OST items into multiple file formats. The users can save their time as they can select the desired OST items which they wish to export into multiple file formats. This way, they do not have to exhaust themselves and waste their time by exporting the entire OST mailbox items. .

'Maintains the HTML Formatting

'Maintains the HTML Formatting

The OST to PST Converter maintains the HTML formatting while converting the data. The efficient tool retains the inline images and the HTML formatting once the conversion process is finished. The software also maintains the SMTP Header and the images used in the message intact.

Once the conversion of OST files to PST format is over, you will notice that the HTML formatting does not alter.

Maintain The Original Structure Of MetaData And Folders

Maintain The Original Structure Of MetaData And Foldersy

The OST to PST converter retains the original structure of MetaData of an email such as From, Date, Subject, To, Cc, Bcc, and etc. After converting the OST files to PST format, the user will notice that the original structure of MetaData does not alter. The advanced software also does not change the original form of the folder structure even after completing the conversion process..

*There will be no changes made in the internal hierarchy of emails or folders and Meta properties.

Get a Free Preview Of OST Items

Get a Free Preview Of OST Items

The user can get a free preview of the entire selected data by using the 'Preview' option. The converter allows the user to preview OST file data before starting the conversion process. The OST to PST converter has an advanced feature that allows the user to double-check the content before converting the files.

*Display Preview facility is available in the Both Demo or Paid Version, which enables you to Preview Complete OST items.

Compatibility with All the Latest Editions

Compatibility with All the Latest Editions

Microsoft Outlook: Supports all the versions of Outlook 2021, // 2019 // 2016 // Outlook 2013 // Outlook 2010 // Outlook 2007 // Outlook 2003.

Software Specifications

Minimum Pentium Class
Operating System
Windows 10, 8.1, 8, 7, Vista, XP
512 MB Minimum
Hard Disk
50 MB of free space
License &
Single User License
Can use only on a single system
Technician License
Can be used on '3' systems
Language Supported
English, German, French, Italian, Spanish
Installation Guide    User Manual    Purchase Related FAQs

Frequently Asked Questions (FAQs)

Use the steps below for a quick OST to PST Converter:

  • Download, Free KDETools OST to PST Converter.
  • Select the OST files, which you want to convert OST to PST.
  • Check the full preview of the OST file contents.
  • Click on the "Export" button and choose PST from saving options.
    *You can also choose the other options based on your requirements such as MBOX, EMLX, vCard (for Contacts), vCal (for Calendars), and etc.
  • Click on the "Browse" button to save the destination path.
  • For splitting a PST file, choose the desired option:
    "Split PST" to divide a file by Size
    "Message Filtering" to divide the file by Date
  • Click on the "Convert Now" button to start the conversion process.


The converted PST files can be easily imported in any version of the Microsoft Outlook.

The OST (Offline storage table) file is the local copy of a user mailbox, which is stored on the Exchange server. By default, you can find the .ost file on the following locations:

drive: \Users\\AppData\Local\Microsoft\Outlook
drive: \Documents and Settings\\Local Settings\Application Data\Microsoft\Outlook

Yes, the OST to PST Converter tool to converts OST to PST with complete items such as: emails, contacts, calendar, attachments, folders, tasks, notes, etc.
No,the Software does not make any changes in the original file and folder structures and email's properties. It provides the exact data as it is before the conversion.
The software supports converting the OST files into multiple file formats such as PST, MBOX, MSG, EML, EMLX, HTML, vCard, and vCal. The tool moves the OST files to Mail Servers such as Office 365 and Exchange Server.
Yes, with the KDETools OST file converter, you can import multiple OST files into Office 365 in Public folder, and Archive mailboxes directly. You can also access by global admin account with with mapping option.
Yes, we provide a free demo version by which the user can easily check the preview of the OST file contents including Emails, Contacts, and Calendar.
You are not required to have Exchange server services when the software converts OST to PST.
Yes, the software supports to Covnert OST file into Outlook 2021, 209, 2016, 2013, 2010 and smoothly performs the conversion of the OST file to PST with 100% accuracy.
Yes, The software it allows you to converts an Offline OST file to PST file formats without installation Microsoft Outlook & Exchange Server in your system.
The Software time taken to convert an OST file dependings on your files size, drive spece and internet speed. The high larger OST file is the time it takes to convert the OST file.
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Satisfied Users
2 Million +
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Free Lifetime Upgrades
Free Upgrade Facility

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