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. And for OST files up to 500 MB size, we offer free conversion from OST to MBOX (Thunderbird), DBX (Outlook Express), PDF (Adobe Reader), EML/MSG, RTF/TXT, HTML/MHTML, & PST (Outlook) formats.

Export OST to PST in Outlook 2003 & later

This free tool exports OST to PST of 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.


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 (94)

First < 7 8 9 10 > Last
Neel says...
With the help this tool I am also recovering and repair OST file and convert OST files to PST, EML, MSG and HTML also
17th October 2016 6:32pm
Divid says...
I was facing internal error 'Code=0000000E' while trying to access OST file. Then, I felt that Exchange server crash might be the issue behind this occurrence. At the moment, I couldn't understand what should I do and approached OST recovery experts. They suggested me OST to PST software to resolve the issue. I just got overwhelmed by using this software because it instantly fixed the issue without any failure and let me access OST file.
14th October 2016 3:22pm
Alwyn says...
Though, I already had installed anti-virus on my system, but I had no idea how did virus attack to Exchange OST files? It made the files completely inaccessible and left me annoyed. For the moment, I tried scanost.ext to repair OST file, but OST files got too damaged to repair by free utility. Then, I inched towards third party tools and got OST to PST converter. It deeply scanned OST files to remove the corruption thus making it virus free completely.
12th October 2016 7:14pm
Michelle Routhier says...
I could not stop myself to review OST to PST software because it worked beyond my expectations. My OST file got inaccessible due to oversize issue. I tried to remove stuff from oversized OST file, but it didn't work out. With the help of OST to PST recovery software, I first converted inaccessible OST to PST and then performed split operation over the converted PST file. Eventually, I could access OST file and corresponding emails.
10th October 2016 2:03pm
Edward says...
As we all know, OST data corruption is very common issues. I have also faced this problem, when I use this software and easily recover all OST data.
7th October 2016 1:33pm
Seman says...
I was completely fed-up of facing numerous OST error messages, while making every attempt to access OST emails. Then, I went on to search for the solution and got OST to PST software. The tool helped me in identifying the real cause of error and took just a few minutes to resolve the issue and now, I can access my emails.
5th October 2016 8:02pm
Ainsley says...
I was literally shocked to see the way this software performed all the required tasks of OST file recovery in a few minutes and that too, with full accuracy. The software was running in the background, and thus I was able to browse websites on the Internet and look at my emails without any difficulty.
4th October 2016 2:13pm
Bramley says...
I personally encountered with the OST corruption issue. But, luckily I get the software and recover corrupted OST files.
29th September 2016 2:10pm
Neel Gagan says...
Facing OST file error was too annoying, but thanks to Kernel for OST recovery software. It helped me recover and restore corrupted OST file and save in PST file format
28th September 2016 7:40pm
Blake Clark says...
I was unable to send/receive emails in MS Outlook and looking for a solution. Meanwhile, I reached to an ultimate solution as OST recovery software. It helped me to fix the oversized OST file into smaller pieces. Soon I was able to send and receive emails in Outlook.
26th September 2016 3:33pm
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