Free OST to PST Converter
An Online Portal to Convert OST Files to PST Format without Any Loss of Data


  • Export all data items emails, contacts, task, notes etc., from OST file
  • Option to migrate offline OST file to PST / EML/ MSG/ Office 365 for free
  • Export OST data to PST online from all Outlook versions
  • Transfer data from OST to PST, including deleted data
  • Provides an option to convert OST file to PST online in batch
  • Capable to export Outlook.bak to PST of any Outlook versions
  • Recover, Backup & Extract Offline OST2PST file

To Convert Into Specific Format (EML, MSG, Office 365) With Date-Range Filter

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Online OST to PST Converter - A Unique Tool to Export OST

ost to pst

Migrate OST File to PST

Outlook OST2PST freeware allows users to export OST data to PST online. A user just needs to add the OST file and mention the export type in the message box, our free service will convert OST file to the specified format in a seamless manner. Moreover, we allow to convert offline OST file from any Outlook version to PST file format or Office 365 account.

ost to eml

Convert OST to EML

If a user wants to convert OST to EML online and access it using some other supporting application, then also he/ she can use this free OST file to PST Converter. It provides users an option to export OST to EML format in just a one simple click. If a user wants to convert OST to EML format, mention it in the message and tool will do the same.

ost to msg

Convert OST to MSG

With the help of this free online OST to PST Conversion portal, a user can export OST to MSG format without any cost. After that access the resultant MSG file in Outlook as per his/ her requirement. There is no file size limitation during conversion process. One can upload any size of OST file to this full version converter without any restriction.

ost to pst freeware

Our Provision

Our solution increases the chances of providing a reliable, quick, secure and flexible way to convert OST file. Most of the users nowadays want an instant solution to all their queries that required minimal effort. Thus, to export OST data to PST file more conveniently and easy for the users, we have designed the free online OST to PST conversion portal. It is an online service to convert OST file to PST/ EML/ MSG/ Office 365 user account. Our services are completely free of cost and reduces the overload of manually exporting OST to any other file format. In addition, we offer some other benefits to our users such as:

Online OST to PST Converter

No Restriction on OST file size

100% Secure Conversion

24*7 Technical Support

One-click Conversion

Total Customer Satisfaction

convert OST2PST

Frequently Asked Questions

Yes, one can easily use this service to export multiple OST emails, calendars and other items to PST format in batch.
No,there is zero percent chance that OST file data will get lost while uploading it. The downloading and uploading servers use by use are really trustworthy.
Yes, you can convert OST file emails along with attachments to PST format on our online converter.
Yes, you can download the OST files after it is being moved into PST format. Also, you can use full version of the portal by migrating into EML and MSG files.
Yes, we respect the email policy that your data or information shared with us will be totally safe and secure and not being leaked.

Advance Features of Free OST to PST Converter

intact metadata

Keep Metadata of OST File Intact

During conversion, we preserve meta properties of all data items stored in the offline data file. It includes subject, from, to, size, date, cc, etc. This free OST to PST file Converter service will maintain original formatting also of all data items even after migration.

bulk ost to pst

Migrate OST File to PST

With the help of this OST converter freeware, a user can export multiple OST files to PST in batch without any penny. A user just need to upload all required OST file to this converter and it will export all OST data to PST, EML, MSG in bulk according to user query.

selective data

Convert Selective OST File Data

A user can export OST2PST for free in a selective manner. This service has various filters that permit users to convert only required data from OST to PST format. Note: To avail this service, you need to mention the categories like only emails and contacts or particular time in the query.

folder structure

Maintain On-disk Folder Structure

After converting OST file to PST format for free, it will provide output PST file in which folder hierarchy will be retained. It means that a user will receive the PST file in the same way as original files even after online OST to PST conversion.

Some Client Reviews

Damon Murphy

Antonio Lawrence

Jorge Steele