OST to PST Converter Freeware

OST to PST freeware tool restores the entire Exchange mailbox data which includes emails, contacts, notes, journal, etc. from OST files.

Converts OST files into PST files to recover inaccessible & deleted items
Saves large size OST data into small-size, multiple PST files
Maintains data integrity during and after conversion
Exports or migrates OST data to Office 365, Email Servers and Web based email clients
Support Outlook 2019 and all previous versions

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Free OST to PST Converter Features

Offline OST to PST Conversion

The OST to PST Converter exports OST to PST in offline mode. It accesses all OST files on the system without the original Exchange profiles or an Exchange Server connection and then converts to PST. Even orphaned or damaged OST files can be converted to PST.

Search & locate OST files

The Search feature of this free tool helps to find all the OST files available on the system. For conversion, you can just select the required file from the list displayed by the tool. This basic feature is for all users

Complete Preview for FREE

This free OST to PST Converter is like an open source tool when it comes to the preview feature. The entire OST mailbox data—emails, contacts, calendar, etc.— can be previewed. And in the case of damaged OST files, all recoverable items are displayed for preview.

Saving to Exchange, Office 365, Thunderbird, & Gmail

This freeware utility can be upgraded to get many advanced OST saving options like Exchange Server, Office 365, MBOX, and web mails. So this utility is suitable for Exchange administrators as well as home users.

Analyze the OST File Content

This tool provides four types of OST File Analysis Reports for free: Total item types on the OST file, Mail flow density by date/users, and interaction between any two different users. The content of the entire OST file or selected mailbox folders can be analyzed this way.

Search, find, & save emails

You can fetch essential emails from even from very large OST files, just by providing a few search criteria like From, To, Subject, Date range, or Attachments. The items then can be previewed and saved to the desired formats/destinations.

Convert OST to PST Free

Export 25 items free from each folder of OST to Outlook (PST), Outlook Express (DBX), MSG/EML, TXT, HTML/MHTML formats. Once you are comfortable with the features and working of the tool, you can buy the full version for complete OST to PST conversion.

Export OST to PST in Outlook 2003 & later

This free tool exports OST to PST of Outlook 2019, Outlook 2016, Outlook 2013, Outlook 2010, Outlook 2007, & Outlook 2003 versions.
You simply can import the PST file to any of these
versions of Outlook.

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Testimonial

"Recently we switched to Office 365 completely. But some mailboxes, we failed to migrate to Exchange Online as we found them missing. However, we restored them from the OST files on the user machines. The process was easy because of this OST to PST converter. Recommends it for all cloud enthusiasts to deal with post-migration mailbox missing issues"
Ronald Williams

"Its preview feature is fantastic. Emails, contacts, calendar, email attachments, and even deleted items are visible very clearly. I just saved all my OST emails to company IMAP account before shifting to a different office."
Stanley Rose

"Being in the support team with direct interaction with clients, I had no option when our Exchange crashed - I retrieved the client emails from OST and kept the business going on. Simply a quick fix till our Exchange comes live."
Jake Ford

FAQs

Do I need to give credit card details for downloading this tool?

No. You need not even provide your personal information for downloading the tool. The trial version is free for all and you can get it just by clicking the Download button on our site.

Can I back up my mailbox without Exchange administrator’s involvement?

The OST to PST Converter is designed keeping the end users in mind. You can back up your mailbox to PST file on your end without any involvement of Exchange administrators.

I am using Thunderbird on my personal system as it is free. Can I export my official emails from my Exchange account to Thunderbird using this tool? I don’t want to disturb my Exchange administrators for this simple task.

You can export your official emails from OST files to MBOX format using this tool. You can perform it yourself without any help from Exchange administrators (however, make sure that your company policy allows you to do this).

OST files are on client systems. But why this tool has options to save OST files to Exchange Server, Office 365, etc.?

Exchange administrators can use this tool after Exchange disasters to restore user mailboxes to a live Exchange Server or Office 365. Only thing is that they have to collect OST files from the client machines.

Comments (149)

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Niamh says...

On a colleague's recommendation I downloaded the tool but was afraid that it will not give me positive because the size of the OST files was large. But to my surprise, it proved me wrong.

12th September 2018 3:26pm

Robyn says...

A super amazing freeware! I installed the tool and within count of 10, I got all my OST files converted to PST.

12th September 2018 3:15pm

Friedl says...

We are struggling with the damaged ost for a long time, but then we got this tool and repaired it and exported it to pst. It is a nice tool

19th April 2018 8:31pm

Toni says...

I am really glad and thankful to my friend who suggested me this tool to recover and convert my old and damaged ost file. It is a reliable and good tool.

17th April 2018 1:36pm

Stefan says...

Thank you, team, for developing such a brilliant tool. It resolves all ost corruption issues. I am really thankful.

13th April 2018 2:15pm

Kiefer says...

I have successfully recovered my all deleted OST file data with this amazing software. The support team also helped me to solve my issues regarding this software. Thank You!

12th April 2018 4:01pm

Aurick says...

During the backup, my system unexpectedly gets shut down, due to which my OST files becomes corrupted/inaccessible state. To resolve this issue, I have tried many methods, but it failed to access OST files. At the end, with the suggestion of my colleague, I tired your software and that helped me to a lot. So thank you very much for your software and customer support.

12th April 2018 2:17pm

Wendell says...

Such a brilliant tool it is. It not only repaired my ost but also convert it to pst. I am very happy with its working.

11th April 2018 7:23pm

Arnold says...

My ost file was damaged and tried every possible effort to repair but failed. I used this automated tool and successfully repaired my files. Good work team.

10th April 2018 6:25pm

Vanille says...

It is nice tool for ost to pst conversion. I converted my data quickly to pst - really appreciate this tool.

6th April 2018 2:06pm

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