ost converter

Download OST Converter

Export OST files to PST, EML, EMLX, MSG, MBOX, and VCF formats

  • Recover Deleted Items from Outlook mailbox.
  • Support Cached, Encrypted, corrupted, and Password Protected OST files
  • Export Data from Outlook OST to & 5+ Email formats.
  • Support Outlook 2016 & Outlook 2013 Windows Application
  • Works with all Windows & Exchange Versions
  • Preview before Pay option functionality inbuilt
  • Protect Messages structure & Maintain Mails Privacy
  • Works without Internet & Converts files quickly
  • Preserves non English language of Mails & Contacts
  • Transfer Messages attachment securely
  • Support multiple OST files from different locations
  • Easy to handle utility to Export OST files
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ost converter

GainTools OST Converter

A Complete Solution to Convert, Repair, Restore & Export Exchange Server OST Files

ost features

Safe Recovery Process

The program provides complete and safe recovery of OST mailboxes such as emails, contacts, calendars, posts, tasks, journals, appointments, notes, distribution lists etc…with higher accuracy.

Support Large Sized OST Files

There is no restriction in terms of conversion of long and short OST data. No matter how long an Offline Storage Table data is, you can trust the software for smart, rapid and accurate conversion.

ost features
ost features

Quick Export OST in 5+1 Different File Formats

Software Exports Exchange Server OST files into 5+1 Different file formats like MBOX, EMLX, MSG, VCF, EML, PST & works with all Windows & Exchange Server versions.

OST Converter Benefits & Features

no file size limit

Convert into 5 + Email Formats

With this feature, it enables users to share MS Outlook data to different clients including Thunderbird, Entourage, WLM, Apple Mail, Outlook Express and many more… The converter tool provides options to choose among popular file formats including PST, MSG, EML, MSG, EML, EMLX, MBOX and VCF. Choose any one of the format that meets with your requirements to successfully establish conversion process. Thus, the application gives custom migration. This feature makes the tool outstanding and worthy to install and use.

no file size limit

Highly Interactive

The software is technically advanced yet user friendly. It has a few simple steps for conversion. It is actually a straightforward app that anyone can use it regardless of their technical skill. The wizard is self-expressing, needs no technical assistance to follow the steps. It takes just one or two trials to understand it key functions. Users can feel themselves comfortable to install and run the app individually… The interface is simple and easy to understand. Downloading process takes less than a minute to follow.

no file size limit

File Filtration Support

The control of conversion is at your hands as the tool supports deep file browsing feature that lets you locate specific OST files from different locations. Search OST from any drive and any folder. The tool is capable to scan any accessible OST file to make it ready for conversion. You are free to choose OST files regardless of their size and complexity. Thus the utility makes the conversion as per your desire and convenient.

no file size limit

Free to Test all Software Features

It sounds exciting when you come to know that something is offering free of cost. GainTools has given the reason to excite to all the MS Outlook users. The portal is offering free OST File Converter Trial opportunity where one can export few items from OST format without paying anything. This is an excellent opportunity to grab. You can check all features without paying anything. At the same time, you would be able to analyse the power of OST Converter Software.

no file size limit

Preview Option

The Offline Storage Table file you have selected can be viewed in the tool’s preview box. It quickly scans the selected OST file and shows preview of it. Each folder of an OST file can be viewed. It shows the number items a folder has and the content including CC, BCC, To, From and attachments. Before exporting an OST file you can get preview of the file to know whether the selected file is the one you want to convert.

no file size limit

Highly Compatible

The utility is highly compatible. It has been designed to work with any latest versions of Windows OS including XP/Vista/10/8 and Exchange Server. The app makes conversion of OST files of MS Outlook 2003, 2007, 2013 and even the latest 2016. No matter what is the version of your MS Outlook, the utility scans the stored OST files to convert them. You can run the software swiftly on multiple versions of Windows without any interruption.

no file size limit

Quickly Scan & Export Data

There is nothing that can obstruct the tool to scan an OST file. It has capacity to give support to cached, encrypted, corrupted and even password protected OST files. Entire folders of OST including mails, notes, messages, contacts and calendars are exported swiftly. It even works to export OST files holding non-English characters like Chinese and Korean. Users can rely on the app to export attachments of emails to get high quality conversion support. It quickly scans the selected OST file.

no file size limit

Error Free Conversion

OST converter tool offers error free conversion. The content quality is restored. No file is damaged or lost during migration process. The tool makes no change in the content structure. It preserves file originality. Error free migration is provided by preserving non-English or double byte characters.

How to convert OST file into various formats?

Swift conversion of OST files into multiple formats is so easy with OST Converter.

Initially, download and install the application on your Windows systems.


download ost converter

Once the software is opened, add OST file using the Browse button.


gaintools ost converter

View the complete items of OST file and select the required items to export.


open ost

Now, choose a format in which you want to export the file like PST, EML, EMLX, MSG, MBOX, VCF, ICS, etc. Pick a file format to export.


selection of output format

Now, choose a location to save the resultant file. Then, hit the Convert Now button to begin the export process.


export ost

OST Converter Application FAQs

What data the software is capable to export from OST file?

The software is capable to export entire mailbox items which include emails, contacts, calendars, notes, journals, etc. from OST file.

What is custom data migration for OST file?

It is related to conversion of any desirable OST files to PST. Apart from this it is related to migration of a selected item of Outlook OST. You can migrate a specific item of an OST file like inbox, outbox, note or message.

What if I select a wrong OST file for migration?

The control of migration is in your hand. You need to be careful selection of the right file. To get an assurance of selecting the right OST file for migration, use the preview section of the program. The tool shows preview of each selected OST file. The content body can be seen. Each messages of an OST file can be seen separately. It helps you to determine the selected data is wrong or correct. If it is a wrong file, you can select the right one. The tool removes the previous OST file as you select a new one.

What support does free OST converter provide?

The free OST file converter gives flexibility to convert around 10 items of OST. This is a unique approach from GainTools. It gives you freedom to export any of your choice OST file to personal storage table. The free OST data transfer helps to examine the program efficiency.

OST Converter Process Images

gaintools ost converter

Step 1: Download Tool and Add OST File.
open ost

Step 2: Display Preview OST File.
desired location and export ost

Step 3: Choose your Desired Location and Export for OST File.

OST Converter Tool Free Download

Know Minimum System Specifications to Download & Use the OST Converter App with Ease

ost converter

Software Download


Size 2.17 MB
Version 1.0

Download a Trial - Take the tool to evaluate by converting 10 emails from each OST folder.

ost converter

Client’s Views about OST Converter

Before buying this software, I have compared it with lots of tools. After my complete analysis, I can say it is truly an amazing solution to export OST files to many formats.

Joe Shestak Mexico

This software really surprised me when I was trying to recover some important emails from inaccessible OST file. The application provides preview option and after that, I have exported desired data items to PST format.

Ichae Semos Netherlands

I am thankful to GainTools OST Converter which helped me to easily export OST files to MBOX format. Now, I can easily access OST files to Thunderbird application.

Joseph Rossignol Paraguay