OST file converter
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RecoveryTools
OST Converter Software

MVPs Verified Tool to Convert Multiple OST & NST Files Easily

  • Convert Outlook OST & NST Files in 30+ File Formats
  • Perform OST File Conversion with 100% Accurate Results
  • Two Options to Load Single or Multiple Data Files/Folders
  • Convert OST Files with Emails, Contacts, Calendars, Tasks, Etc.
  • OST Converter can Load Outlook Profile Data Automatically
  • Preserving Emails Metadata & Properties Intact After Conversion
  • Multiple File Naming Conventions Option to Save Resultant File
  • Advanced Features Allow Users to Convert Selective Data from OST
  • Export Outlook OST Files to Various Webmail Servers/Email Services
  • Outlook Installation Not Required to Run This OST Converter Tool
  • Download OST Converter & Install It on All Windows and Mac OS Versions

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Convert OST File with

Attachments

Signature

Header

Footer

Formatting

Emails

When Users Should Use the OST Conversion Tool?

Access Orphan OST File

Access Orphan OST File

Users with corrupted, damaged, orphaned, or inaccessible OST files can use this software to open and recover them.

Backup and Migration

Backup and Migration

Backup and migration are additional reasons to use this OST converter tool. Users often need to convert OST files to a standard format for backup purposes or to migrate them to another platform.

without Outlook

Open OST File without Outlook

Since only Outlook can open OST files, accessing them without Outlook can be challenging. In such cases, this OST converter tool is an excellent solution.

Why Choose RecoveryTools OST File Converter?

Outlook OST converter is an incredible software that allows you to export OST file with email clients, webmail, or email services. The OST converter can be used to export OST files to readable file format. The software gives the facilities to migrate OST file data with all components including Emails, Contacts, Calendars, Tasks, Notes, etc.

As a business user, you likely receive between 10 and 50 emails daily in your Outlook account. MS Outlook stores all email data in an offline storage folder i.e. OST file, at the default location. Over time, your mailbox size will increase daily. The OST file converter software helps you reduce the size of your mailbox by moving important emails to smaller or more useful file formats.

Convert OST File Selectively

RecoveryTools believes in providing the best software to its users. Hence, the OST converter will allow the users several features to ease the whole migration process. It comes with an advanced feature, which allows users to convert only desired emails to convert OST files selectively :

  • Date Range: You can put the desired date range i.e., 'From' and 'To' to export specific data.
  • From: Here you can put a specific receiver's email address.
  • To: This means extracting data only from a specific sender’s email address.
  • Subject: Same as From and To filter, you can convert your emails, which have similar subjects.
  • Exclude Folders or Empty Folders: Enter the ‘empty’ or ‘unwanted’ folder names here to exclude them.

best ost converter

Export OST File in 30+ Formats

The OST converter will give clients an immediate choice to export OST file into 30+ document designs and email customers. A user can convert OST to user-readable files, webmail email services, desktop-based email clients, & other file formats. Here is a list of all the file formats & email clients supported by this application to export OST files:

File Saving Formats

Several Naming Convention Settings

The OST file converter software offers advanced file naming options, allowing users to save output files with their preferred naming formats. These naming settings are only available when a user chooses a single message file format i.e., MSG, EMLX, EML, MHT, TXT, HTML, XPS, DOC, RTF, or PDF file format. You can apply all these naming conventions based on several fields.

Choose one naming option at a time

  • Subject + Date (DD MM YYYY)
  • From + Subject + Date (DD MM YYYY)
  • From + Subject + Date (YYYY MM DD)
  • Date (YYYY MM DD) + From + Subject
  • Date (YYYY MM DD HH:MM:SS) + From + Subject
  • Date (YYYY MM DD HH:MM)
  • From + Date (YYYY MM DD HH:MM)
  • Date (MM DD YYYY) + From + Subject
  • Date (YYYY MM DD) + Subject + From
  • Auto Increment

Several Naming Convention

What Data Does This OST Converter Exports?

Emails

Email Messages

Convert OST file emails with full details and original content. It exports emails from OST files with all elements including email headers, message content, formatting, signature, attachments, hyperlinks, embedded elements, etc.

Attachments

The OST converter tool accurately exports OST files with all attachments to local storage. Supports all types of attached files including:

  • Files - PDF, DOC, CSV, HTML, PPT, XLS, etc.
  • Pictures - JPEG/JPG, WEBP, BMP, PNG, TIFF, GIF, etc.
  • Business cards - VCF/vCard
  • Calendars - ICS

Email Message Headers

OST file conversion tool supports exporting emails with exact email headers including: -

  • Mail Addresses of Receiver's/Senders including Bcc, Cc, fields.
  • Mail Subject
  • Mail Receiving/Sending Time & Date.

Email Folders

RecoveryTools OST Migrator Tool can successfully export OST mailbox directories to various formats and cloud platforms. Keeps original system disk folder hierarchy of OST mailbox directories with subfolders.

Calendars

Calendars & Appointments

OST Converter Software supports exporting and recording scheduled / recurring business meetings and appointments, including all details like end and start date, categories, subject, location, etc.

Contacts

Contacts

OST file converter supports converting contacts, contact groups, and folders from OST mailboxes to multiple cloud/web / desktop email client applications and services

The software stores the full contact information of the OST.

  • Birth Date
  • Nick Name
  • Business Number
  • Primary Phone Number
  • Home Number
  • Home Address
  • Email address
  • Business Address

OST Converter Software - Features

Convert OST File Emails

Convert OST File Emails

Use this best OST converter tool to export the emails & their elements in the format chosen by the user. A user can convert unlimited emails from the OST file without any size limitation. The toolkit provides several email formats to save the extracted emails. It will convert OST emails with all components like email headers, meta properties, embedded objects, email formatting, hyperlinks, signatures, etc.

Export OST File Contacts

Export OST File Contacts

The OST file converter will allow the users to export the contacts & address book stored in the OST file to the user’s desired format. It helps the users to migrate OST contacts with all details & fields like First Name, Last Name, Title, Job Description, Suffix, Company Name, Messaging ID, Department, Business address, Business email ID, personal address, personal email ID, contact number, phone, mobile, fax, country/region, etc.

Export OST File Calendars

Export OST File Calendars

Users can also easily export the calendar items stored in the OST file using the OST Converter tool for Calendar. It provides users a separate option to migrate OST file calendar items. All the calendar entries including Events, reminders & meetings will also be migrated using this toolkit. Easily export the OST calendar to universal iCal or iCalendar format without any issue.

Rated As Best OST Converter by Experts

RecoveryTools believes in providing the best solution to its users. Hence, the OST converter will allow the users several features to ease the whole migration process. A user only needs to select the OST files for the conversion & the rest of the task will be handled by the utility itself.

It won't roll out any improvements in the original metadata & properties of emails during the process. The OST migrator tool is one of the best approaches to successfully export OST files to multiple files & email formats.

We are committed to providing the industry's best solutions to migrate a user’s data in the safest environment. OST converter tool is a fully safe & secure application to convert data. So, it becomes more important to convert OST file data securely. Thankfully, this toolkit fully solves all these issues.

OST File Converter by Experts

Advanced Features of OST File Converter

Convert OST Files with Attachments

Convert OST Files with Attachments

The utility supports OST file conversion along with all types of attached files. It supports the conversion of OST emails with both types of attachment files i.e., Embedded Attachment Files & Normal Attachment Files. It supports all the major file extensions inserted as attachment files with OST emails.

Folder Hierarchy

Preserve On-Disk Folder Hierarchy

The utility is best known for keeping the on-disk system folder hierarchy of mailboxes. It will not make any changes to the original system folder structure. The OST Converter tool will perform the conversion of emails from a folder to the same folder in the output data file like emails stored in the INBOX of the OST file will move to the Inbox in the output file.

Convert OST Files without Outlook

Convert OST Files without Outlook

A user can convert Outlook OST files without even requiring Microsoft Outlook email client installation. It is a completely standalone application to perform OST conversion. It can export OST files even when your Microsoft Outlook is disconnected from the Microsoft Exchange Server.

Export Multiple OST
Batch Export OST Files

OST converter tool will enable the users to convert multiple OST files in batch mode. It provides users with dual modes to load OST files in the application panel. Choose the Select Folders option to choose multiple OST files for the conversion & the rest of the task will be handled by the application itself.

Load OST Data
Load OST Data from Configured Profile

Many users have encountered problems when trying to access OST file data from their local drives. To ease this issue, RecoveryTools OST migrator provides a direct option to the users to automatically detect the OST data from the configured Outlook profile location. You do not need to manually load OST files in the application.

Corrupt OST Files
Convert Orphaned / Corrupt OST Files

A user can easily convert orphaned OST files using this software. It also provides a Recovery Mode option, which is useful to repair the corrupted OST file & then export the data. The utility only scans the original OST file and creates a copy of it to perform the conversion to a select file format. Use the OST converter free demo version and check the features.

Convert Selective OST
Convert Selective OST File Folders

Many users seek a solution for exporting selective OST mailbox folder items. Fortunately, RecoveryTools OST Migrator provides this functionality. It will list all the OST letter box envelopes in its board like Inbox, Drafts, Sent, Trash, Junk Email, Spam, etc. You can choose any one folder from the list of Mailbox directory items from here. Once the user chooses the items from here, the tool will automatically choose all the subfolders & include emails within it.

Decrypt OpenPGP

Decrypt OpenPGP or S/MIME OST Files

Sometimes a user may have encrypted OST files with various technologies like S/MIME or OpenPGP. In this scenario, the application will decrypt the OST files before OST file conversion. There will be no harm in the original OST file like data integrity, data corruption, inaccessibility of OST files, etc. Check features by using the free demo version and then buy the OST converter full version.

Output File Location

Change Default Output File Location

By default, the application will store the output files on the Desktop. However, the utility will allow the users to change the default destination location to save items. A user can choose the location where they want to save the output file. The OST converter tool also enables the users to create a New Folder directly from its panel.

OST Converter Software for Mac
OST Converter for Mac & Windows

OST converter software supports all Microsoft Windows operating systems including Windows 11, 10, 8 and all older editions. with x86 and x64 bit interface versions. You can also run it on Mac OS variants like OS X 10.5 Leopard- 2007, OS X 10.6 Snow Leopard- 2009, OS X 10.7 Lion- 2011, OS X 10.8 Mountain Lion- 2012, OS X 10.9 Mavericks-2013, OS X 10.10: Yosemite-2014, OS X 10.11: El Capitan- 2015, MacOS 10.12: Sierra- 2016, MacOS 10.13: High Sierra- 2017, MacOS 10.14: Mojave- 2018, etc.

OST Converter Tool - Online Video

This software has been created with amazing and advanced features, which makes the OST converter the first choice of users and experts. Users can easily convert all types of OST files including corrupted, damaged, inaccessible, and other types of files.

"It features a simple and intuitive interface, making it accessible for both technical and non-technical users. Below are some easy steps for more details:"Easy Steps to Convert OST Files:

Easy Steps to Convert OST Files
  • Step-1: Download OST file converter & launch.
  • Step-2: Import your single/multiple OST.
  • Step-3: Check the needed folders/subfolders.
  • Step-4: Select the desired saving type.
  • Step-5: Select the location to save results.
  • Step-6: Press the Convert button to start the process.
OST Conversion Tool - Specifications

Software Download

File Size: 561 MB

Version: 8.2

Trial Limitations

OST converter wizard allows users to convert 25 emails from each folder to analyse the process and features.

System Specifications

Hard Disk Space
Around 100 MB

RAM
256 MB RAM

Processor
Pentium IV Processo

Supported Editions

  • Microsoft Windows – Windows 11, 10, 8.1, 8, 7, Windows Server 2022, 2019, 2016, 2013, etc
OST Converter Software – FAQ

If you have an orphan OST file, and you want to open it then download the RecoveryTools Free OST Viewer to analyze your files.

OST is used by Outlook when Exchange is connected, which stands for Offline Storage Table. It is mainly used when you want to work offline.

Mainly used IMAP accounts, Exchange accounts, Microsoft 365 accounts, and Outlook.com accounts.

OST files are stored at the default Outlook Data File storage. It may vary with different versions of Outlook or Windows you are using. Windows 10, 11: C:\Users\User_Name\AppData\Local\Microsoft\Outlook\oultook.ost Windows XP: C:\Documents and Settings\User\Local Settings\Application Data\Microsoft\Outlook\outlook.ost

The toolkit can allow you to directly load data from the configured Outlook Profile location, so you do not need to manually look for the data.

Yes, the OST Converter tool is capable of handling & exporting data from an orphaned OST file without any issue.

Yes, the software is fully capable of converting oversized, or large-size OST files to desired file format without any issue.

OST Converter Tool - Reviews

"This All-in-One OST file Migration utility proves to be the best choice for me which allows me to easily back up OST files to useful file formats in batch. I can safely convert OST file items at the desired location as PST as well as upload them into Outlook Live Mail client very easily. I recommend this RecoveryTools product to export, save, or migrate OST file emails, contacts, and calendars."

user profile best star

Pullo Anthony, Greece

"I made a comparison of this toolkit on all the online available applications. When I checked its specifications, these are so applicable to a user. This tool generates a live conversion report in a real-time environment to understand the process of conversion. I would like to use this OST Converter Software for the transfer of my emails."

software review five star

Arely Hernandez, Germany

"As an Outlook user, I was facing trouble. My Outlook is not connected to Exchange Server, So I was not unable to migrate data from the OST file to its server. Thankfully, the OST Migrator tool has a direct option to do so. It is a completely independent solution that does not require even MS Outlook email client installation."

OST Migrator tool star

Jeffy Hedai, Spain