OST to PST Converter for free





SysTools OST to PST Converter
Tool To Convert Outlook OST File to PST Outlook 2019, 2016, 2013, 2010, 2007 & Below Version

(Average Rating 4.8 Based on 2122 Reviews)
  • Convert Outlook OST files: Emails, Calendars, Contacts, Task, Journals etc
  • OST to PST converter can convert OST to PST, EML, MSG , HTML, PDF File formats
  • Easily Convert inaccessible, Orphaned, and Large sized OST Files to PST Format
  • OST to PST Converter can convert IMAP, Office 365, Exchange & Hotmail OST File
  • Tool Supports Latest Outlook 2019 Version and all Version of Windows OS
  • Decrypt & Remove S/MIME & OpenPGP encryption from Outlook OST emails best software

Free Live Demo: – SysTools OST File to PST Converter Fully Secured Download Version

SysTools OST to PST Conversion Software Review & Ratings

Expert Rating of Outlook OST file to PST Converter Application

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Features of Best Outlook OST to PST Converter Software

Download and Install the Software to Verify the Stated Features During Conversion

change ost in pst

Permits Batch Conversion of OST Files Using Search Option

With this remarkable OST to PST converter, users can efficiently import bulk OST files for conversion. Within the software panel, it facilitates an option to Search File automatically, which is followed by Search Selected Drive and Search All Drive.

Using Search Selected Drive, one can easily locate OST files from different drives such as C, D, E. Whereas, using “Search All Drive” option, the software will locate the OST files from all drives within a single click.

Based on the OST file corruption level, one can choose the desired scan mode options i.e., Quick and Advanced. The Quick Scan mode is for minor level of corruption. And the user can choose advanced Scan mode for majorly corrupted OST files.

Download Wizard

Renders Multi-Mode Preview Options

Offline OST file to PST converter is developed keeping all the challenging user requirements. As a result, it provides multiple preview options to view the email data items thoroughly. It is one of the amazing features to view Outlook emails in 7+ preview modes as follows:

  • Normal Mail View: Specifies the basic details of the email message such as From, To, Cc, Bcc, Date-Time, Subject, etc. in a precise way.
  • Hex View: Display the email data in hexadecimal format that helps to know bit-by-bit information to analyse for forensic perspective.
  • Properties View: Additional email details are showcased such as internet header details, body details, message flags, sender details, etc.
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  • Message Header View: This view describes different parameters of the email message like Mime-Version, Content-Type, Return-Path, Message-ID, etc.
  • MIME View: The selected email information is displayed in Internet standard that extends the email format.
  • HTML View: Displays the email data in HTML code which is specified within the HTML tags.
  • RTF View: Preview all the information corresponding to the selected email message in a plain text RTF file format:
  • Attachments View: All the attachments associated with the email message will be previewed in a single glance.

ost to pst wizard

Export to PST & Avail Various Export Options

While undergoing the export process of OST files to Outlook PST format, numerous advanced export options are rendered by the tool. This includes the following options:

  • Maintain Folder Hierarchy: Preserve folder structure of the resultant PST file, same as per source format. The user can check this option to preserve folder hierarchy or the user can uncheck this option to get flat hierarchy.
  • Don’t Export Empty Folder: Discards empty folders getting converted to the output PST file.
  • Use Outlook: To speed up the conversion process the user requires MS Outlook needs to be installed & configured with an account.
  • Ignore System Folders: Selecting this option will ensure that system folders will not be converted to the resultant PST file.

ost file to outlook

Facilitates Outlook PST Advanced Export Settings

This versatile OST to PST converter offers various customized options under “Advance Settings”. Users are extremely benefitted by availing these options. Based on the requirement, one can choose the desired filter options.

  • PST Split Option: Spit the resultant PST file into small and manageable file parts.
  • Date Filter Option: Specify the date range and convert only the desired OST data to PST format.
  • Categories: Convert the desired OST data items by selecting the options and get it converted into PST format.

OST to PST Converter Software - Features

Here Comes a Plethora of Highlighted Features Of This Application

convert all types of OST

Efficiently Convert All Types of OST Files

Using this remarkable Outlook OST to PST converter tool, one can seamlessly convert corrupt, IMAP, Office 365 and Exchange OST file without any hassle. With this utility, it is no more a complicated task to implement OST to PST file conversion. All because of its user-friendly interface that allows even users having less technical expertise to convert offline OST file to PST format.

Scan Modes

Normal and Advance Scan option

SysTools Outlook OST to PST converter is developed with an advanced algorithm to convert offline OST file to PST format. The software renders 2 different scan options i.e., Quick Scan and Advance Scan. To restore data from minimal corrupted OST file, use Quick Scan. Whereas, the Advance Scan lets users to retrieve data from severely damaged OST file in an effortless way.

convert inaccessible ost

Convert Inaccessible, Orphaned or Large OST to PST format

This Outlook OST to PST Converter is designed in such a way that it Convert Inaccessible or orphaned OST file to Outlook 2019, 2016, 2013, 2010, 2007 PST format in bulk. It converts all data items stored in the multiple OST file such as emails, journals, notes, tasks, contacts, etc. Moreover, using this software to export OST data to PST, one can convert offline Outlook file of any size successfully to PST file format. You can also batch convert OST to PST with our Batch OST 2 PST Converter Tool.

preview ost data with metadata

Capable to Preview OST Data With Metadata

After successful completion of the scanning process, the OST to PST Converter provides an instant preview Offline OST items with 7+ Preview Modes : Normal Mail View, Hex, Properties, Message Header, MIME, HTML, RTF & Attachments. It includes a preview of all components in OST file like emails, contacts, journals, notes, calendars, etc. Moreover, users can view these data in two different views while moving OST to PST i.e. Horizontal and Vertical view . Also, recovered data is shown in Red Color & folders with data will be visible in bold.

convert ost file in batch

Convert Single & Multiple OST Files to PST download free software

This Outlook OST to PST conversion tool provide 2 checkbox option to enable users to include and convert single or Multiple OST Files at once :

  • Select File : Convert one OST file at a time to PST
  • Search File : Provides facility to auto search All or Selected Drive from User PC & bulk convert OST Files at once.

search options

Auto-Search within Selected or All Drive ost / pst crack

The Search File facility within software console gives two major functions which helps save users effort & time:

  • Search Selected Drive: Locate OST File from Selected Drive (eg- C:, D:, E: etc.)
  • Search All Drive: Locate OST File from All available drive in user PC

decrypt ost file emails

Remove S/MIME & OpenPGP Encryption best ost pst software

Decrypt Emails option in software console enable Users to easily Decrypt & Remove S/MIME (Secured Multi-purposeInternet Mail Extension) & OpenPGP (Pretty Good Privacy) encryption applied on OST File emails. After conversion, users will be able to receive output PST File without encryption which is accesible without Certificates & Private Keys password.

preserve metadata

Preserve Meta Data of OST File After Conversion

With the help of Outlook OST to PST conversion software, one can convert all emails along with attachments stored in offline data file to Outlook PST format. In addition, it keeps the metadata of all items intact as the original. For example: To, Cc, Subject, Size, etc. This OST 2 PST converter preserves the original formatting of OST file items even after conversion.

advanced filter option

Numerous Advanced Filters

The Offline OST to PST converter offers various powerful filters to ease the OST file conversion process. The different filters include the option to “Split PST file” into small parts. Besides this, users can avail “Date Filter” option in which one can easily convert the desired OST data by specifying the date range. Using “Categories”, select and convert the required OST mailbox items to Outlook PST.

export selected items / folder

Selective Items / Folder Export Option

During the process of converting Outlook OST file to PST format, one can convert selective OST files and folders. Within the software panel, users simply need to select the required files which are to be converted to PST format. Similarly folders like Inbox, Contacts, Calendars, Notes, Tasks, etc. can also be selected from the interface itself to convert it into PST format.

advanced options

Avail Futuristic Advanced Options

Besides applying various advanced filters to convert OST files, different advanced options can also be utilized. This includes the option to “Maintain Folder Hierarchy” which keeps the originality of the output PST file as per source format. Using “Don’t Export Empty Folder” option, all the empty folders will be excluded to get converted. With “Ignore System Folders”, the system folders will be avoided getting converted to PST format.

support Outlook 2019 and below

Supports Outlook 2019, 2016 & Below change ost pst

This OST to PST Converter Tool provides Support to the latest Outlook Versions. After the successful conversion from .ost file user can import OST to PST in Microsoft Outlook 2019, 2016, 2013, 2010, 2007, 2003.

Download OST to PST Converter – Specifications
Use the Free Trial Version to Know How to Convert OST to PST Without Outlook

Software Download

Size : 35.2 MB

Version : 3.0

MD5 : 4ae47d3e49d1269ab9ec701dc807c3ba

Trial Limitations

Free Demo version of software will generate Preview of OST mailbox data & Support to Export only 25 Items per Folder from OST file to Outlook PST format.

System Specifications

Hard Disk Space
100 MB of free hard disk space required

500 MB of RAM (1 GB is recommended)

1GHz processor (2.4 GHz is recommended)

Operating System

2000, 2003, 2008, Vista, or Windows 7/8/8.1/10, 2008/2012 (32-bit & 64-bit)

Outlook Versions

Support Conversion from Microsoft Outlook 2000, 2003, 2007, 2010(32/64 bit), 2013 (32/64 bit), 2016 (32/64 bit)


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Feature Comparision Of OST to PST Converter Tool

Get an Overview of Offline OST File to PST Converter Features – DEMO and Licensed Version

Features DEMO Version FULL Version
Add and Export Single or Batch OST File
Two Scanning Mode (Quick & Advanced) for OST
Preview OST Emails with Attachment
Remove S/MIME & OpenPGP Encryption from OST File
Split up large PST file by size
Support Windows 10, 8, 7 and below versions
Backup Outlook OST to PST File 25 Items/Folder All Items
Save & Export OST 2 PST 25 Items/Folder All Items
Cost FREE $49

Common Questions Asked by User

Try OST to PST Converter For 100 % Succcessful OST to PST Conversion.

How to convert OST to PST Using This OST to PST Converter Software?

“I am using Microsoft Windows 10 on my official computer. I have 10 user’s account .ost files and I want to convert it into .pst file format. Please list the steps to convert OST to PST format using SysTools software.”

ost to pst wizard

5 Steps to Convert Bulk OST to PST Format

  • Step 1 –: Download SysTools OST to PST Wizard and launch
  • Step 2 –: "Browse .ost file" using software panel
  • Step 3 –: Now "preview OST file data" into software preview panel
  • Step 4 –: Select "PST" radio button and click on "Export"
  • Step 5 –: "Save" exported file into .pst format after OST to PST conversion

"Most of the offline copy of my organizational user accounts are in an orphan state. The server is down for maintenance too. What can we do to regain the access to these replicas in the defined condition or is there a process to convert orphaned OST to PST?"

The Offline mailbox (OST) of users can be converted to Outlook PST format using this batch OST to PST Converter for regaining the access of its contents for business continuity. The process to convert orphaned OST file to PST file is very easy and simple to understand with this Outlook OST to PST conversion software.

"There are certain mailboxes that also store more than 20 GB of data which would make the entire conversion a lot more stretched in duration. How will the software handle such bulky sized files and quickly finish the conversion tool?"

Although, the OST to Outlook PST conversion time depends somewhat depends on the amount of data being converted, but the software is capable enough to freely deal with large sized mailboxes too at the same time. Therefore, the size of mailboxes won't make much of a difference as the tool's rate of conversion from OST Data file to PST is quite quick as compared to most other utilities of its category. Basically this application is capable to convert Large OST mailboxes easily.

"I have 3 GB of Offline OST file, I have taken backup of OST file. What should be the process if I want it to re-import on Exchange Server?"

First thing OST is offline Outlook Data & it is not present on server. For reimporting the data on server you first need to convert .OST file to .PST file. Follow the given process:
  • First, select the desired mailbox & click on the icon and then Import PST.
  • Then specify the path to transfer PST file in Wizard & Click Next.
  • Then on second wizard select the user mailbox in which PST is need to import & Click Next.
  • On the final page select checkbox if you want to notify the PST has been imported & click on Finish.

That's all it become very easy to reimport the OST file back to the server if you have converted already in PST. And for risk free conversion SysTools OST to PST Converter is one of the best solution.

"Currently, we have Exchange 2010 and Outlook 2013. The location on which the archive email stored in my previous machine having Windows 8 is c:\users\UserName\AppData\Local\Microsoft\Outlook. I got a new PC. I have copied the data file and now I want to open archive to look for an old message. But on importing following error message appear. Error, "The file you chose is not an Outlook Data File. You must select a new file of this type." I know that Outlook wont open a .pst file, but I need to open an .OST file."

Firstly, OST is an Offline file. It could not be accessible if you do not have Exchange server synched with your Outlook. To open it in Outlook, you need to convert OST to PST format only. And this is the best OST to PST Conversion Software to change OST File to PST.

"Currently, I am using Outlook 2016 but I have an orphaned OST file from Outlook 2007 stored in my system. Now, I want to access that OST file in my Microsoft Outlook 2016. Can I use this software to convert OST to PST in Outlook 2016?"

Yes, you can easily export OST data to PST file format from Outlook 2007, 2010, 2013 ,2016, 2019. This tool supports both ANSI and UNICODE OST file conversion. So, within a few clicks you would be able to extract OST file to PST which is importable in all Outlook versions. Moreover, the tool provides email filter during export for selective PST data extraction.
If you Want to Move OST file to new computer then first you have to Convert .ost to .pst file format. After saving the resultant OST file data the user can easily move the OST file to new Computer.

"I tried to repair my file using scanpst.exe. At that time MS Outlook created backup of my OST file into a new file with .bak format. I have lost my OST file but .bak file is still there. Can I convert bak to pst file using this OST to PST converter tool to get back my all data?"

Yes, BAK file is the replica of your OST file. You can get emails, contacts, calendars, tasks and notes data from that bak file using this OST to PST software. The tool supports outlook.bak file conversion into PST, EML, MSG, & HTML format.
No, the SysTools does not provide crack of any version OST file to PST converter tool. If you are downloading crack or free serial key from any other website. Then the SysTools is not responsible for any misleading. Also, SysTools suggest to install only digitally signed software on your Windows computer.
Yes, SysTools provides lots of exciting offers which you can claim by applying software coupon code. To avail code for discount contact to

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