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Version: 11.0

Date: 9-2020

Converter for OST


Powerful software trusted by Microsoft MVPs and IT administrators to convert the inaccessible OST file into PST file and extract the mailbox data. The tool converts OST to PST and extracts the emails, attachments, contacts, & calendars, etc. with 100% precision. It supports Outlook 2019, 2016, 2013, 2010, & older versions.

  • Converts large OST file to PST - No file size limitation
  • Converts encrypted OST into PST. Also converts IMAP OST file
  • Exports mailbox data from OST to Office 365 & Live Exchange (Technician Edition)

Key Features

Converts the Large-Sized OST File
Stellar has rigorously tested the tool for converting very large-sized OST files. The tool converts the large OST file in situations when Microsoft Outlook or Exchange Server is crashed or facing a disaster, or Outlook is facing synchronization issues. It converts the OST file efficiently and extracts the data with 100% precision.

Extracts All the Mailbox Items
The OST to PST converter by Stellar extracts the emails, attachments, contacts, calendars, tasks, notes, journals, etc. The software can also extract the deleted mail items from the offline data file (OST). It is the best solution for any situation that needs the user to move the OST file to PST and extract the mailbox data from the OST file.

Previews the Complete Mailbox Data
The software displays a detailed preview of the mailbox items stored in the converted OST file. The user can click a folder, email, calendar, or other mailbox items listed in the Preview pane to view its contents. The Preview feature helps in identifying and extracting the specific items from the offline data file (OST).

Converts the Encrypted OST file
A user may face an error when trying to open an encrypted OST file, leading to loss of access to the mailbox data. Converting the encrypted OST file to PST file can solve this problem. The OST to PST converter by Stellar converts the encrypted OST to PST, thus allowing access to the mailbox data.

More Awesome Features

Converts the OST into Multiple File Formats
The OST to PST conversion tool allows the user to extract the mailbox data in different file formats such as PST, MSG, EML, RTF, HTML, or PDF. This feature allows the user to view the mailbox contents in applications such as Outlook, web browser, PDF reader, text reader, etc.

Sorts & Organizes the Messages
The OST PST Converter software extracts mailbox data in an organized manner while maintaining the original arrangement of mail items. Once the OST scanning is completed, the software allows sorting and organizing of the emails by Date, From, To, Subject, Type, Attachment, Importance, etc.

Free OST to PST Converter
The tool allows free OST file to PST file conversion and extracts 20 emails per folder. Use the free OST to PST converter to scan the OST file. After scanning the Outlook OST file, preview the converted OST file and extract the mail items in a PST by clicking the �??Save converted file�?? button.

Allows to Save & Load the Scan File
The OST PST converter tool allows the user to save the OST file �??scan�?? information as a DAT file and load it later to continue the conversion. This feature helps in splitting the OST to PST conversion process in two stages, doable at different times or on different systems.

Converts Multiple OST Files in a Batch
The tool can convert multiple OST files into PSTs through a single batch process. This feature is helpful when an organization is moving to a new email service and needs to extract mailbox data from several OST files. The Batch Conversion feature is available in Technician Edition.

Exports the OST Data to Office 365
The software can directly export the OST to PST converted files to Office 365. It allows the user to login to an Office 365 account and exports the mailboxes directly through its interface. The OST to Office 365 migration feature is available in Technician Edition of the software.

Splits the Large-Sized PST File
Technician edition of the software can split a PST file by Size, Date, Email ID, and Folder. The tool offers to split the PST file in the sizes of 1-50 GB while preserving the original organization of the mailbox data. The feature helps in improving the manageability of large PST files.

Compacts the PST File
Technician edition of the software can compact a PST file by compressing all the attachments in a PST file or extracting and saving the attachments in a folder. It can also extract, compress, and save the attachments in a folder while preserving interlinks through the PST file.

Trial Download

Price information

Download Trial (18423 kB)

Select Product / License Count / Delivery type




Stellar Converter for OST Corporate license 1-year Subscription (email)




Stellar Converter for OST Technician license 1-year Subscription (email)




Pricing is based on prepayment and excluding VAT / BTW / MwSt / TVA.

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Last updated : 25-09-2020


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