EdbMails OST to PST converter is an easy to use recovery and converter software for OST files. It can extract folders, emails, contacts, calendars, tasks, notes, journals, etc., with its original structures from OST to PST. Recovering orphaned OST files is a one step operation using EdbMails OST to PST tool. You can also convert ransomware or malware victim OST files and the OST file from a backup snapshot to a PST file.

Offline Outlook data or OST files created by Outlook that resides in your computer is helpful in recovering your Exchange emails if it crashes. Also, the mail servers operating on IMAP that store its emails in an OST file can be recovered by using EdbMails OST recovery software.

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Export OST to PST
Export OST to PST

Supported scenarios for OST to PST conversion

  • Recover accidentally deleted Exchange mailboxes and folders from OST files
  • Recover orphaned, encrypted and damaged OST files
  • Corrupt and ransomware victim OST files recovery
  • Recover and convert IMAP OST files to PST
  • Recover mailboxes from OST files in case of Exchange server crashes
  • Support for Unicode and ANSI OST file formats
  • Support for all the Windows operating system and Microsoft Outlook versions

OST to PST Converter Key Features

Corrupt and damaged OST files recovery

With EdbMails OST to PST converter, you can recover an offline Outlook data file which is corrupted and damaged. It extracts all the emails and messages from OST mailboxes to Outlook PST files. You can also export OST files to different formats such as EML, MHT and HTML. Restore deleted, corrupted and damaged OST files to PST by retaining the original data and folder hierarchy Read More

Corrupt and damaged OST files recovery

Recover and export an orphaned OST file

Recover and export orphaned OST file

OST file may become orphaned when there is Exchange server or MS Outlook failure. Due to this the OST file data may be inaccessible. EdbMails OST to PST converter tool is helpful in such a situation to recover and convert the orphaned OST files to PST Read More

Rebuild OST file from Outlook 2019/2016/2013/2010

Recover inaccessible, corrupt OST files and convert to PST using EdbMails OST to PST solution and access Outlook OST file data. Rebuild the corrupt OST file in the various Outlook versions such as Outlook 2019, 2016, 2013, 2013, 2010 and others Read More

Recovers and export orphaned OST file

Recover and export unlimited OST files to PST

Unlimited OST files Recovery and OST to PST Export

EdbMails OST to PST converter lets you to recover unlimited OST files and convert each recovered file into individual PST files. In addition, it does not impose any restrictions on the size of the OST file for the recovery and the export operation. It recovers and exports the entire OST file data to PST in a few clicks Read More

Free OST file viewer to preview the complete OST data

Free OST file viewer helps you to preview the complete OST file data including mailboxes, folders and its hierarchy, items under each folder etc. No email client is required to view the OST file data. You can view all the items under each folder such as emails, contacts, folders, calendars, etc. and decide the export operation Read More

Free OST file viewer to preview the complete OST data

Recover and convert encrypted OST file to PST

Recovers the encrypted OST file and convert to PST

Errors in encrypted OST files may lead to inaccessibility of the mailbox data. You can resolve this by exporting and converting the encrypted OST file to PST files using EdbMails. It doesn't need any key to perform encrypted OST file export operation. Upon conversion, you can access your mailbox data from the exported PST file successfully Read More

Granular recovery of OST file

OST to PST software supports granular recovery of OST files. You can restore / export individual mail items from the OST file. In general, granular recovery reduces the recovery time by allowing you to perform conditional (individual or group of items / messages) export operation Read More

Granular brick-level recovery of OST file

Recover deleted Mailbox items, folders from OST file

Recovers deleted Mailbox, folders, etc., from OST file

EdbMails is the best OST to PST converter tool to recover accidentally deleted mailbox folders, emails and messages from OST file. It supports both soft-deleted and hard-deleted user mailboxes recovery using OST to PST export operation Read More

Export selected emails, folder and its items from OST file

OST to PST conversion software allows you to select the required emails and folder in the OST file and then export it to PST. Selectively export required items like Inbox, Contacts, Calendars folders and the items in the corresponding folders by switching to filter settings where you can set include / exclude filters based on Date, Subject, To, Cc, Bcc, Attachment Name etc. Read More

Exports Selective mailboxes, folders and its items from OST file

Export email, calendars, contacts and more

Exports email, calendars, contacts and more from OST File

EdbMails can export mailbox data from the OST to PST file by keeping the folder structure intact. This will help you to export the entire mailbox including emails, contacts, calendars, tasks, journals etc., with a single click Read More

Recover Metadata and Attachments

With the help of EdbMails OST to PST converter you can recover emails with the metadata like ‘Message headers’, ‘Message-ID’, ‘Subject’, ‘To address’, ‘From address’, ‘Date and Time’, ‘Cc’, Bcc’, etc from OST Outlook data files. Users can also save background images, attachments (with all extensions), appointments, meeting schedules, etc. Read More

Recovers Metadata and Attachments from OST file

Convert OST to PST from all the Exchange and Outlook version

Converts OST to PST from all the Exchange and Outlook version

No matter which version of Exchange and Outlook you are using, EdbMails easily converts OST to PST file from all the versions of Exchange server and Outlook. Easily recover and convert the OST file of Outlook 2010, 2013, 2016 and 2019 using OST to PST converter software Read More

Exchange Mailbox Backup using OST file

Email servers like Office 365, Exchange Server or any other IMAP accounts use an OST file to store a copy of the mailbox. If you try to use an old cached file, Outlook complains that it doesn't match the server mailbox. These OST files work in synchronization with the MS Outlook OST file. It helps in keeping the mailbox up-to-date with new emails, meeting requests, delivery reports etc. You can use the backup copy of the OST file and convert it to PST Read More

Exchange Mailbox Backup using OST file

Split a large OST file to multiple PST files

Splits a large OST file to multiple PST files

MS Outlook application doesn’t provide any option to split large-sized offline OST files. Direct export of data from an oversized OST file to a PST increases the size of the PST file and may lead to OST corruption. It is better to split the OST file into multiple PST files. Switch to EdbMails and utilize the split PST option to convert an offline Outlook data file (OST) to multiple PST Read More

Export log report

EdbMails automatically generates log reports for the OST to PST export operation. That's, for every OST to PST conversion operation you can find a separate session log file and it will help you to know the status of the complete export operation. Report consists of the total number of exported items from each and every folder and it indicates success or failure Read More

Export log report

Supports Unicode and ANSI OST file formats

Supports Unicode and ANSI OST file formats

EdbMails OST to PST converter software supports export operation for the OST files which are created in any languages (Unicode or ANSI). That's, it supports non-English (Unicode) characters, special characters OST files to PST export Read More

Migrate OST to Office 365

EdbMails is a fast, secure and easy to use migration tool for migrating your OST files to Office 365. It can seamlessly migrate mailbox data such as emails, calendars, contacts, tasks etc., from your OST file to your Office 365 tenant. EdbMails uses advanced incremental migration technique for Office 365 migration to avoid duplicate items migration Read More

Migrate OST to Office 365

OST to Live Exchange Migration

OST to Live Exchange Migration

EdbMails OST export and migration operation can help you in reinstating your Exchange server mailboxes. It can directly migrate mailbox data such as emails, calendars, contacts, tasks etc., from your OST file to the Exchange server. It supports granular incremental migration for Exchange migration to avoid duplicate items migration Read More

Steps to convert OST to PST

OST to PST Conversion steps

  • Browse the offline OST file that you wish to recover
  • Select the mailboxes and folders for export
  • Choose the location to save the exported data
  • Click the ‘Export to Outlook PST’ button to export the data to PST

Our customers love using EdbMails


  • Thanks a lot. Your software keeps me out of trouble this year. Keep doing your good work and tell the team you're an A++ company.
      – Martin Cauvier
    Drummondville, Canada

  • EdbMails EDB to PST converter just an outstanding tool and software has a user-friendly feature that helps me to recover my damage Exchange EDB emails. Thanks to the creator of this application.
      – René Corten
    Bruehl, Germany

  • I was looking for Exchange 2007 to Office 365 migration tool. I had tried to move from Exchange 2007 to cloud Office 365 using EdbMails software. EdbMails worked great and it helped me a lot in Exchange Server to Office 365 migration.
     – Renee Kontson

  • New Interface is just Amazing! All in one makes my day.
    All I can say is its an amazing renovation of your site
     – Dan
    New York, United States

  • Having used EDBmails EDB to PST on numerous occasions I have always had success with recovering the data I needed.
    The software is easy to use, the interface is clean and intuitive. The support is excellent and I wouldn't have any problem recommending this software
     – Daniel Butterworth
    United Kingdom

  • I must say, your responsiveness and effectiveness is VERY IMPRESSIVE.
    My expectations were well exceeded by your brilliant EdbMails Exchange Server recovery service.
    – Anthony Bonomini

  • I've used EdbMails for Exchange Server Recovery, which worked very well for exporting directly from .edb Exchange databases to standalone .pst files. Great for recovery. The team behind this project is very friendly and ready to walk the extra miles to fix any issue you have with installation or extraction. They helped me to retrieve a pst file from a backup EDB without using any exchange server. I was extremely pleased how they handled any small problem and they did not rest until the job was done.
    I am recommending to everybody to use EDBs services , they are great ! – Stefan Suba
    Mississauga Canada

  • Just to let you know that the exports to PST are going great.
    I have done about 30 mailboxes now and the largest so far is a 50GB PST. Great software.
    – Steve Linter
    United Kingdom

  • Amazing PST file repair software to recover confidential emails from corrupt Outlook PST File.
    This software is proved to be secure and free. Big thanks to the EdbMails Experts.
    – Joey

  • I have used the EdbMails to recover and migrate my Exchange EDB file to Office 365.
    Nice software... I will indicate to my friends ...
    – Paulo Matos
    Santo Andre, Brazil

  • Votre logiciel fait ma journée"...
    Merci beaucoup.
      – Svlosk

  • Your support is very hot. Good going. Thank you.
      – Rock Asselin

  • I have tried several software for migrating Exchange, and your seems a nice solution.
      – Jomi

  • Lamentably, only couple of days back, I had lost all my association mails alongside considerable rundown of contacts and Recently I have used EdbMails EDB to PST Converter Software and it really worked like a pearl.
      – Renato

  • This product recouped nearly everything which we had lost when our Exchange Server got slammed. Great product.
      – Melvin
    Amsterdam, Netherlands

  • It is in fact a great product
    You've saved myself countless sleepless nights of manually exporting individuals mailboxes of 10GB+ to PST and then importing back again to O365
     – Ignatii

  • YOU SAVED MY DAY !!!!!! :) Thanks a lot,
    I like your software, it's easy working and simple.
      – Manuel
    Sinsheim, Germany

  • I bought your software and it is really easy, it has perfectly exported my client's old Exchange 2010 to Office 365, Thank you EdbMails Team!
      – Salaberry-de-Valleyfield

  • I have used EDB to PST and EDB to O365 with the converter tool, and I like the way it works!
      – Daniel Friedhoff

  • One thing that you have the best app for the Exchange. I have tried several other software, but EdbMails is outstanding.
      – Jaime Figueras
    Madrid, Spain

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