I never knew that email migration would be so quick and easy. Use this Software for OST to PST conversion was lot easier. Five stars to developer team of BitRecover for creating such a useful offline software for us.
Reliable Solution to Batch Convert OST Files to PST for Compatibility with Major Outlook Versions![]()
Our OST to PST Wizard scans the OST file at binary levels to offer full integrity of your mailbox data. It supports orphaned, corrupted, and large OSTs, while meticulously preserving folder structure and metadata. Furthermore, it ensures a complete offline conversion; all processes are executed locally with no risk of uploading data to a server.
Features Highlights
MVPs recommend this tool to extract and convert offline OST files to PST with full mailbox recovery. Supports encrypted, orphaned, or oversized OST while preserving the complete folder hierarchy, making the conversion safe and hassle-free.
When You Need It Most
Convert OST to PST Without Outlook
While Microsoft Outlook offers Archive and Export options to change an IMAP OST file to PST format, both methods require the active Outlook application and the same configured profile you wish to export. This is a major limitation that the BitRecover offline OST to PST File Converter is specially designed to overcome.
Multiple Export Options for Any Size OST File
This OST to PST exporter supports converting OST data to PST as well as many other formats and platforms. Basically, it supports 39+ file formats and email services for the PST export option. Users can purchase this OST converter once and use it without any limitation. As a standalone software, it handles even large-sized OST files and can migrate OST data directly to both desktop and web email clients.
File Formats:
Exchange Server Down or Profile Deleted
When the Exchange Server is down or the profile is deleted, you lose access to the Exchange mailbox data (the OST file). Microsoft does not provide a native option to relink or access an orphaned OST file. In these critical scenarios, the BitRecover OST to PST Converter acts as an essential, advanced recovery tool.
Migrate Directly To:
Key Features
There is no built-in free solution to convert orphaned or corrupted OST without Outlook. That’s why we’re introducing a quick, dependable, and error-free software for this task. The tool includes numerous features as well as full support for Windows OS and Outlook editions. Download BitRecover OST to PST extractor and install the tool on your system.
For complete data conversion, the best choice is to download OST to PST Exporter Wizard. The Exporter Wizard is the best choice for fast, complete, and offline OST to PST conversion. As a standalone software, it performs the conversion process without damaging the original formatting or properties of any email item.
Retain Data Integrity During Conversion
BitRecover Convert OST to PST tool takes special care to preserve the data integrity of the OST file. It is designed to produce error-free, accurate output in PST file format. The OST folder structure, email properties, and other formatting will remain unchanged. It ensures that all data is converted from orphaned OST to PST format.
To speed up the conversion process, the tool provides an 'Add Folder' option. Users can place multiple OST files in a single folder, select the folder, and begin the conversion all at once. This efficient batch process significantly saves time and effort when converting multiple files.
Facility to Choose Destination Path
When the OST to PST Converter process is complete, the user will be given the option to select the destination path. You can save the output file anywhere on the host system by selecting the location. The user benefits from the ease of data access. The entire conversion process will be error-free thanks to the advanced features of the offline OST to PST wizard.
Email Properties and Attachments Kept Intact
The tool maintains data integrity while converting data from an OST file to a PST file. Regardless of the increase OST file size the type of data it contains, the tool will take extra precautions to keep the content safe and intact. Email attachments, email properties, and all other OST file data credentials will be preserved at the end of the OST to PST conversion.
Outlook or Exchange Not Required
OST converter tool is ideal for users who want to convert OST to PST without installing Outlook. There is no need to install Outlook on the same machine for conversion. The user-friendly interface and simple steps assist the user in making the OST file accessible. It also aids in the conversion of orphaned OST to PST without the need for an Exchange profile or server connectivity.
Convert Encrypted and Password Protected Files
This tool has the capability to export encrypted OST files to PST format, retaining key metadata and folder hierarchy. Even though the OST file is associated with any type of encryption options by Outlook, such as No Encryption, Compressible Encryption, and High Encryption, the tool will still convert emails along with all attributes from OST to PST file format.
Convert Orphaned OST to PST
The most dependable OST file to PST Software is easy to use and inexpensive. One of its most useful features is the ability to migrate orphaned and configured OST files to PST file format. Without any data loss, content modification, or other error. You can test the feature in the free demo version before purchasing the full version.
Resize Output File As Per Requirement
Bigger the file size, higher the chance of corruption. To avoid PST file corruption and data loss, the user can create small size output file. User can select 2GB, 5GB or 10 GB file size as per requirement. This feature is helpful for all Outlook users. You can download OST to PST converter and install it on your computer system and easily repair OST file.
Create Separate PST File Per Use
For ease of email access, the option to create separate PST files per users is activated in the smart tool to convert OST file to PST format. For e.g.: now for 10 OST files, user can get 10 PST file if they choose to create individual PST file for each OST file. If they want all the data in one PST file, that is also possible. It will help you to merge multiple users data in one single file and import OST in Outlook.
Mailbox folder and Subfolder
The software displays mailbox folders and subfolders so you can choose exactly what to convert. This helps you skip unnecessary files, keeping your output clean and focused — especially when working with old copy of Outlook data file.
Ignore System Folders Hierarchy
This feature enables users to skip system-generated folders like Inbox, Sent Items, and Deleted Items, allowing them to focus only on user-created or custom folders. It’s too beneficial when the user wants a simplified output folder structure or you are only interested in specific data.
Change language
This feature lets you rename standard Outlook folders (Inbox, Sent Items, Drafts, etc.) into your preferred language. The wizard automatically adapts folder names to the selected language, such as English, Dutch, Italian, Finnish, Norwegian, Swedish, Spanish, German, or French.
OST Attributes
Complete Emails
| Email Messages |
Easily convert PST emails while preserving every detail, including the body content. sender/recipients information, formatting, embedded links, images and attachments. This software confirms that the maintained metadata and email properties remain intact. |
| Attachments |
Export all attachments safely from PST files to your local system. Support a wide range of file types, such as:
|
| Email Metadata |
The tool retain essential information such as:
|
| Folder Structure |
It preserve the original mailbox hierarchy during export. Subfolders, nested directories, and mailbox organizations remain exactly as in Outlook. |
Calendars
| Calendar and Attachments |
Convert scheduled meetings, recurring events, and appointments with complete details such as start/end times, location, categories and reminders. |
|
|
Contacts
|
Tasks
|
Journals
|
Notes
|
Other Folder
|
Filter Options
Advanced Mode
New Feature Update
Recursive OST Detection
This feature offers an intelligent OST file detection system that can automatically locate OST files in a specific folder, even if they are nested with multiple subfolder. It detects all OST files in multiple nested folder automatically, support bulk conversion by adding all discovered OST files at once and eliminates the need to manually browse through complex folder hierarchies, saving time and effort during the conversion process.
Background Operations
This software supports background conversion, allowing you to start the conversion offline. You can minimize the software and continue with your other tasks while it runs smoothly in the background. It provides an automatic notification popup so you are informed immediately and can check your resultant PST file.
Step-by-Step Instructions
Install & Launch OST to PST Converter Tool
Download the Convert Outlook OST to PST to your machine. Once downloaded, run it and accept the required permissions to install it successfully. Now, follow the instructions as explained here.
Browse File Selection Mode
The software supports dual modes configure Outlook mailbox or manually let me select OST files, making it reliable for all types of users.
Preview OST folders
The software previews all OST folders, allowing you to choose what to convert and skip unwanted data.
Saving Options
Select PST as the saving option, apply filters if needed, choose the destination, and click Convert to successfully export OST to PST.
Available on Trusted Platforms
Most Trusted Platforms Hosting OST to PST Converter

UptoDown
According to UptoDown Editors, BitRecover Converter OST to PST is a reliable tool to batch convert OST to PST with preserving emails, contacts, calendar and other data

CNET
According to CNET editors, this tool is marked as top 5 OST to PST Converter for its ability to accurately convert OST files to PST including all components such as emails, contacts, calendars, notes, and more.

TopSoftware Advisor
TopSoftware Advisor lists BitRecover OST to PST Converter as a highly recommended software for Export OST to PST, specially known for accurate and simple GUI.

Updatestar
Updatestar highlights BitRecover OST to PST Converter is safe to download and offers faster performance with your maintained PST file as appears in the source OST file.

Saashub
Featured on Saashub, BitRecover OST File Convert to PST is trusted and verified by technical experts and also offers modern features.

Download.io
According to Download.io, this tool provides fast, reliable and complete OST to PST Conversion, preserving all email elements and offering a smooth user experience.
Managed IT Services
We offer secure, easy-to-operate, and advanced data management solutions with our OST to PST Converter, specially designed for corporate environments, IT sectors, and large-scale industries. OST to PST Conversion software offers complete data integrity and makes it highly reliable for forensic purposes as no changes are made to original OST data.
Our Team of experienced and highly professional technical experts delivers comprehensive OST to PST File Conversion services. This software can convert all OST data including emails, contacts, calendars, tasks, journals and other data.
System Specifications
Software Download
File Size : 55 MB
Version : 14.0
Trial Limitations
Download the free version of this software to quickly evaluate its features. The trial version allows you to convert OST to PST for free, but it only saves 25 items per folder. To do an unlimited number of conversions, you must purchase the full version of this OST to PST converter. It is advised to use the free version first before purchasing the full version.
System Specifications
Hard Disk Space
200 MB of free hard disk space
RAM
Minimum 2 GB RAM(4 GB Ram Recommended)
Processor
Intel® Pentium 1 GHz processor (2.4 GHz is recommended)
Supported Platforms
Electronic Delivery
BitRecover OST to PST Converter Software is delivered automatically. After your payment is confirmed, you will receive an email with a link to download the product and the activation key.
Feature Comparison
Awards & Recognition

Top Performer
Slashdot Awarded as top-performing software for delivering accurate and faster conversion.

100% Clean
Top Download Club has marked 100% clean as completely safe to use, with no viruses, spyware, or unwanted ads.

NoSpyware
SoftPedia Awarded with NoSpyware Certificate for safe and spyware-free installation.

Trustworthy Tech
Software Suggest Recognized as Trustworthy for being secure and dependable tools that users can trust.
Testimonials
FAQs
Follow the steps to bulk convert OST to PST file for Windows & Mac OS.
Yes of course. OST to PST export tool is capable to export OST file to PST format, irrespective of OST file is created via any Exchange profile.
Yes, For this save all 129 OST files in one folder and choose the Add folder option while adding OST file into software panel. Simply download full version and convert multiple OST files to PST file format.
No, BitRecover software is capable enough to perform the conversion of OST to PST format even without Exchange profile and server connectivity.
The software license is indefinitely valid. That is, you only need to buy Offline OST to PST Software once and use it for the rest of your life.
Offline Storage Table (.ost) file is an offline Outlook data file. It is created automatically by Outlook offline folder feature. OST file format is used by Microsoft Exchange Account that allow users to access data even when not connected to the server. An OST file contains all Exchange data items such as emails, calendars, contacts, tasks, etc. A user is allowed to update or modify any data in offline mode and it will synchronize with Exchange Server automatically as connection is turned ON again.
By default, Outlook stores OST (Offline Storage Table) files in a local folder. The exact location depends on your Outlook version and Windows configuration.
Default OST File Path :
Outlook 2016 / 2019 / 2021 / Microsoft 365 : C:\Users\username\AppData\Local\Microsoft\Outlook\
Outlook 2013 : C:\Users\username\AppData\Local\Microsoft\Outlook\
Outlook 2010: C:\Users\username\AppData\Local\Microsoft\Outlook\
Outlook 2007 and earlier : C:\Users\username\Local Settings\Application Data\Microsoft\Outlook\
Follow the steps mentioned below to rename OST file
It is simple to upgrade from a free demo version to a full version of software. Simply purchase the full version of OST to PST Exporter and you will receive an email on your registered email address within 15 minutes. It will include the registration key for the full version.
Yes, the software is capable enough to convert hosted Exchange OST to PST format without any limitation.
There is no fix time for conversion, it totally depends upon the user's system configuration and OST file size.
Yes, But the free version allows users to export only 25 items per folder. To remove this limitation user has to buy full version and activate the offline tool.
OST stands for offline storage table and it stores offline copies of email data from exchange servers while PST is local file use for storing emails, calendars and other data for POP3 or IMAP accounts.
Yes, This software allows you to convert OST files without Exchange Server or profile access.
Yes, BitRecover OST to PST Converter preserves folder structure including subfolder during conversion.
Download OST to PST Converter to recover and convert data from corrupted OST files, extracting as much data as possible for the PST file.
Yes, You can convert selected folders, items or emails to convert and away from spam files.
Yes, This software allows you to batch convert OST to PST based on year-wise, and folder-wise and get accurate results.
Yes, This software is capable of converting password-protected OST files and it will export data in PST file without breaking the password to keep your data secure.
Yes, This software can process any size of OST file and also support splitting the resultant PST file into smaller parts to easily access and keep away from corruption.
Yes, BitRecover offers 24/7 technical support to assist any issues encountered during the conversion process.