OST to PST Converter Tool

Best OST to PST Tool (Mac or Windows Editions) for Unlimited Conversion of OST Emails, Contacts and Calendar to PST Outlook 2019, 2016, 2013, 2010 and 2007

Features for the Best OST to PST Converter Wizard

  • Convert Data from OST files: Emails, Contacts, Calendars, Journal and etc.
  • Easily batch convert unlimited OST files to another account/format at once.
  • Highly Safe and Secure program for OST file to PST migration
  • Convert OST to PST without any file size limitations
  • PST Split option for splitting large size of PST files
  • Supports to Batch Convert OST mails to PST
  • Multiple languages support for OST to PST conversion in desired language
  • Different options to load OST file - Add Files, Add Folders and Load Outlook Profiles
  • Allows to export OST file to PST of Outlook 2019 & earlier editions
  • Download and run the application on all versions of Windows OS or Mac OS
  • Includes option of Create log for messages not converted
  • Facilitate to choose and set the destination path as per need to save resultant file
  • Provide Separate PST per User function to create separate file for each user
  • To convert OST to PDF Read More.
  • To save OST files to Gmail Read More.
  • To transfer OST data to MS Office 365 Account Read More.




OST to PST Conversion in Multiple Ways with Mac or Windows OS Editions

CubexSoft OST to PST Tool is a powerful and accurate solution for batch exporting OST files to PST alongwith attachments. It offers multiple advance options that anyone can apply accordingly for desired conversion of OST emails to PST with complete details-

  • Separate PST Per User
    Allows to create separate PST file for each user.
  • Split PST
    PST splitting option helps users to break the oversized PST files into multiple smaller parts.
  • Change Language
    Available in Multiple Languages like Dutch, French, German, Spanish, Swedish, Italy etc.

Upload OST Files to Multiple Cloud Apps

The OST File to PST Tool (Mac & Windows) is not only limited to conversion of OST data to PST. The application also allows to upload OST folders to different well-known cloud accounts with accurate folder structure and formatting properties.

The new software update supports direct migration of OST files to popular cloud apps -

  • Hosted Exchange Server
  • G Suite
  • Yahoo
  • IBM Verse

Easily Convert Large-Sized OST File to PST

The All-New updated OST to PST Tool has capability to move large-size .ost files to Outlook PST format in a single processing. The process has shown error in previous version. But, now the tool is updated and launched after checking its size efficiency.

Moreover, the application will keep the data and formatting properties accurate during the batch export of OST files to PST.

Advance Options to Load OST Files/Folders

The software is equipped with multiple options to load OST files/folders as per need. The tool has added Select Files/Select Folders button that offers three sub-options to load OST file. Add Files option allows to load desired OST files, Add Folders helps to load multiple OST folders and Load Outlook Profiles facilitate to directly load OST file from the Outlook account.

Remarkable Features of OST to PST Converter

OST to PST - Best Tool for Mac OS or Windows OS to Batch Export & Convert Unlimited OST Emails, Contacts and Calendar to PST Outlook

Direct Convert OST Files to PST

It is now just a few second activity to convert OST files into PST in batch manner with entire items. The OST to PST Converter Tool extracts a very helpful feature of converting multiple Outlook offline files into personal storage (.pst) format just in one round. In addition, you can browse an OST file of any size and any Outlook versions i.e., Outlook 2019, 2016, 2013, and below versions. No trouble from where the file is extracted, users can feel free to add and convert OST files into PST with help of this utility.

Keeps All Items of OST Emails to PST

This OST file to PST Converter tool holds the internal folder structure of selected offline files while exporting them into PST format. There will be no changes in the internal grading of data folders/sub-folders and original formatting will be maintained throughout the procedure. Therefore, users need not to worry about any data loss because it is guaranteed that OST file conversion will be performed with complete accuracy.

Batch Export Unlimited OST Files to PST

To fasten up the process to migrate OST data to PST, the option of batch OST files to PST conversion is provided by both OST Converter for Mac & Windows OS. In a single folder user can keep multiple OST file, then select the folder and start OST file conversion process all in one go. This batch process helps to save time and effort in executing the multiple OST file migration process.

Preserves Meta Data of OST File to PST

With the help of OST to PST Converter, users can convert all emails along with attachments stored in Offline data file to Outlook PST file format. In addition, it keeps the meta-data of all items intact as the original, for example – to, cc, subject, size, etc. The OST transfer to PST software preserves the original formatting of OST file items even after conversion.

Different Options to Load OST File

The OST PST Tool provides Select Files/Folders option with sub-options Add Files, Add Folders and Load Outlook Profiles. Choosing Add Files button allow to load few desired OST files, Add Folders facilitate to load entire multiple OST folders and Load Outlook Profiles option will help to load OST file data directly from Outlook account.

Provides Multiple Language Support

OST to PST Tool includes the option of Change Language. By selecting this property, a user can perform the conversion process in any kind of language. After clicking its checkbox, the option will enabled and provide the list of multiple languages i.e. Dutch, German, Spainish, Swedish and more.

Includes Create Log for Messages not Converted

Create log for messages not converted is another remarkable property offered by the OST PST Tool. A user can use this option to track the files that are not converted during the process. Once the process is finished, software will open a Notepad file showing the log details of Items Converted and Items not Converted.

Allows to Import OST File to PST with Attachments

Best OST to PST Converter is a great application which has been designed keeping all the needs of users in mind. The software is helpful in migrating OST mailbox to PST including all emails, contacts, calendars, tasks, journals and etc. Moreover, the software maintains to extract OST calendars to PST along with attachments in an exact form.

Selective OST to PST Conversion for Mac or Windows OS

When a user selects OST file, OST PST Tool start reading its items and displays all of them with checkboxes. A user can select the desired folder by clicking on the corresponding boxes and export only that OST folder to PST file. This function help to save time and efforts of users.

Supports all Outlook and Windows Versions

OST to PST Converter has the capability to export any Exchange OST file to PST of any Outlook edition including Outlook 2019. The tool supports both 32bit and 64bit Windows OS editions. A user can download and use the tool on Win 10, 8.1, 8, 7, XP, Vista etc.

What Data Does OST to PST Tool Convert


Email Messages

OST to PST Converter (Mac or Windows) software provides complete solution for your OST migration needs. It supports easy and quick migration of OST email data along with all its properties including – header, email formatting, message body content, hyperlinks, images, signature, etc.

Mail Attachment

OST to PST Converter tool accurately save all attachments in their original format. It supports all attachments format -

  • Documents - DOC, PDF, XLS, CSV, PPT etc.
  • Images - JPG/JPEG, PNG, TIFF, GIF, etc.
  • Business cards
  • Calendars
Email Message Headers

OST to PST tool to migrate OST email messages along with all accurate Meta headers including -

  • Sender's/Receiver's Email Address including Cc, Bcc fields.
  • Message Subject
  • Message Sending/Receiving Date & Time.
Email Folder

CubexSoft OST to PST tool export Microsoft Outlook .ost mails and mail folders to other file formats by keeping their original folder hierarchy. The application helps in moving all folders and subfolders of Outlook OST files to PDF, MSG, MBOX, NSF, Office 365, etc.

Date Filter

Perfectly save OST mailbox data according to specified date range.



The software supports to convert and save Recurring/Scheduled Business Meeting and Appointments including all information like – Start & End Date, Category, Subject, Location etc.



OST to PST Converter tool supports to export Contacts, Contact Group and Address Books from OST mailboxes to multiple local desktop format.

The software saves complete OST contact's information -

  • Nick Name
  • Spouse Name
  • Birth Date
  • Primary Phone Number
  • Home Number
  • Business Number
  • Home Address
  • Business Address
  • Other Address
  • Location,
  • Email address.



The OST to PST Tool enables its users to convert the entire 'Tasks' data items including Subject, Status, Due Date, Start Date, Priority, Reminder, and Owner information. The tool has various smart features, which allows the users to migrate the 'Task' folder in the selected file type without losing any single data. It can also convert the 'Tasks' folder with its attachments.

  • Due Date
  • Priority
  • Owner Information
  • Start Date
  • Subject
  • Reminder
  • Status



The OST to PST Converter software is effective and makes certain to move the Notes Mailbox item in the desired file format without jeopardising the safety of the files.

Screenshots of OST to PST Tool

The OST File to PST software is very much capable to export OST files to PST file. Here are some of the crucial screenshots that helps you understand every step of .ost file To .pst process.

OST to PST - Free Download for Mac or Windows OS

Preview the specification to Download & Use OST PST Tool with Ease

Software Name: CubexSoft OST to PST
Free Download:

Download for Windows 100% Safe & Secure Download for Mac 100% Safe & Secure

Version: 2.0
Processor: Minimum 2.4 GHz Processor
RAM: Minimum 512 MB
Minimum Hard Drive Space: 17.4 MB
Operating System: Windows OS: Windows 10, 8.1, 8, 7, Vista, XP, Windows Server 2019, 2016, 2012, 2008, 2003, etc.
Mac OS: Monterey, Big Sur, Catalina, Mojave, High Sierra, Sierra, El Capitan, Yosemite
Demo Version: Take a Trial - OST to PST Tool for Mac or Windows OS. Free Download enables you to test the functionality of the tool. You can save up to 25 (Win), 10 (Mac) emails from OST to PST file format.
Installation & Un-installation for Windows: Guide Install/Uninstall EULA
Installation & Un-installation for Mac: Guide Install/Uninstall

Frequently Asked Questions

Commonly Asked User's Queries and Solutions of OST to PST Tool

Yes, follow the step-by-step process and check how to convert OST files to PST in an easy and effortless way -

  • Step 1. Install, Run and Open OST to PST Tool on any Windows machine.
  • Step 2. Go to Select Files/Folders and add OST files by using Add Files, Add Folders or Load Outlook Profiles button.
  • Step 3. Software read selected OST file and list all OST file items with checkboxes on left software window.
  • Step 4. Now, click on Saving Options button and select option Export to Outlook PST.
  • Step 5. Set sub-options as per need - Create Separate PST per User, Split PST, Change Language, Destination Path and Create log for messages not converted.
  • Step 6. Click on Convert button to start OST to PST conversion process. After process gets completed, an alert message will appear on the screen "Conversion Completed Successfully". Click OK and exit.

Yes, it is possible to convert OST files to PST file in Outlook 2010. Moreover, the tool also supports Outlook 2019, 2016, 2013 and 2007.

Yes, Our OST to PST Converter software is completely bug free. You can use it smoothly on your system and convert OST to PST without facing any problem.

No, there is no file size limitation appended in our software. You are free to browse large OST file in our software and then import OST file into PST file format.

With the demo version of software for Windows OS, you can save only 25 items per folder. With the demo version of software for Mac OS, you can save only 10 items per folder. However, in order to save all the converted items, you need to purchase the full versions of the software

OST files can be converted without the need of having to convert all data unnecessarily. One can choose what data to be and not to be converted from Offline OST to Outlook PST. Check-boxes are provided against each single item and folder to select the preferred data for conversion. This will help manage conversion time by cutting it short according to the requirement.

Yes, you can move OST file entire data to another computer. Simply choose the compatible saving format and then you can easily transfer OST file to another machine without facing any trouble.

If you want to move only desired OST files to PST, then the tool has provided Add Files option. You can click on the same and load only the required OST files that you want to export into PST format. Go to Select Files/Folders >> Hit Add Files Option >> Go to location of OST folder and select required files.

Yes, the software does not require Exchange Server configuration during the conversion process. You are free to move OST folder to PST without the connecting with Exchange environment.

The OST to PST Tool is programmed by well-known developers. The app is launched after completing testing phase. You do not need to worry about the data. If you perform conversion with few OST file or with entire OST folder then the tool takes the responsibility of each and every data. The data integrity and folder structure remain accurate throughout the process.

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