Free Live Demo: – SysTools Outlook OST Converter Wizard Fully Secured Download Version
Watch Live Video of SysTools OST Converter Software
After testing the SysTools OST converter tool on an expert level, I found that it is designed precisely after considering all the basic requirements of end-users. It can convert and export offline, inaccessible, corrupted, damaged, orphaned, and encrypted OST files as well, which makes it handy and unique from other third-party tools available in the online marketplace. Moreover, there is no OST file size limitation so one can convert any sized OST into a selected file format. According to me, it is safe, secure, and a powerful solution to perform OST conversion.
SysAdmin Ruud, checked SysTools OST Converter Software and stated that, it is a powerful tool to export corrupted or inaccessible OST file. Also the GUI of this tool is familiar and related to Outlook 2007 and 2010 version. Also, the free demo version available to test the tool and buy full version at affordable price i.e. $49.
Initially I have downloaded demo version of SysTools OST Converter just to test its working and features. I found it worth spending money so I purchased its full version. Since then I have converted multiple OST files into different file formats with the help of this eminent utility. I would like to rate this software 4.5 out of 5.
I have tested SysTools OST Conversion Tool to convert all types of OST files including corrupted, damaged, inaccessible, and encrypted. After testing I found the software passed all the conditions simply and converted OST into the desired file format. It is the best software to convert Outlook OST files.
I thought there would be no software in the online market that will allow me to export inaccessible OST files. But, SysTools OST file converter proved me wrong. It converted all my Outlook OST files without losing a single bit of information. Everyone out there who wants to convert their OST must try this.
OST Converter is an advanced utility that allows to export multiple OST files into selected file format in a single go. Moreover, it provides different options to add the OST files that include:
Right after loading the OST file in this Tool it starts scanning the file and loads it in the software panel. From here one can preview OST items in the following modes:
Note: - You can select multiple files by pressing Shift + Arrow Key in the check boxes.
The OST File Converter Tool provides so many advance export options to process the OST file conversion. Some of the options are following:
Export OST to Different Formats
OST File Conversion Tool is an ultimate solution to convert Outlook 
file format instantly. The software is capable enough to convert all the data items of an OST file like Emails, Contacts, Calendars, Tasks, Attachments, and others. After conversion, OST files can be accessed from multiple email clients and supported applications including MS Outlook, Mozilla Thunderbird, Adobe Acrobat Reader, and Web Browsers.
Quick and Advanced Scanning Modes
Right after adding the OST file in the software, it provides two different options to scan the OST file. The first option is Quick Scan, which scans the added OST quickly and loads the entire content in software pane. Another option is the Advanced Scan. In case if the added OST file is highly corrupted or damaged then, choosing this option will scan the entire OST thoroughly, recover entire OST data and load it in the software.
Export OST Regardless of Size / Type
The OST converter can convert all types of OST files. So no matter if the OST is orphaned, corrupted, highly damaged, inaccessible, password protected or created by IMAP, Exchange, or Office 365 accounts. The software can convert OST files simply even without resulting in any kind of data loss. Besides, it can handle the conversion of large-sized OST files into the desired format efficiently.
Preview OST Items With Meta Properties
Once the scanning gets completed successfully, the OST Conversion Software loads the file data and displays an instant preview of OST items. One can preview OST data in 7+ preview modes including Normal Mail View, Hex, Properties, Message Header, MIME, HTML, RTF, and Attachments as well. From here, one can preview all the OST items including emails, tasks, contacts, calendars along with their metadata. For example: To, Cc, From, Subject, Attachments, etc. Permanently deleted items will be displayed in Red color and recovered folders with data will be highlighted in bold.
Different Options to Add Outlook OST file 
The OST Converter software allows to convert single as well as multiple OST files at once. It provides 2 handy options to add OST files in the software:
Supports All Versions of MS Outlook & Windows
OST Conversion Software is a powerful software that supports OST file generated by all the available versions of MS Outlook. The supported versions include Outlook 2021, 2019, 2016, 2013, 2010, 2007, 2003, 2000. Moreover, the software is compatible Windows 11, 10, 8.1, 8, 7, and all below versions of Windows OS and Mac OS X. This means it can be installed and operated easily in all the versions of Windows and Mac OS X.
Decrypt S/MIME or OpenPGP Encrypted OST
In case if the added OST is encrypted with S/MIME (Secured Multi-purposeInternet Mail Extension) or OpenPGP (Pretty Good Privacy) encryption, then OST File Conversion tool will decrypt the file. Once decrypted, users can convert the OST into any of the desired export option and the resultant file can be accessed simply without using any Certificates or Private Keys.
Convert Multiple OST Files in Batch
The software allows to add single or multiple OST files at once. It provides different options to add Outlook OST files and once added, it will convert all the OST files into selected file format quickly. No matter how many OST files are added in the software, it will export all of them at once and create separate resultant files for each OST. Moreover, one can download the complete OST conversion report in CSV format for future reference.
(Windows)
| Name: | SysTools OST Converter |
| Version: | 10.0 |
| Size: | 85 MB |
| Release Date: | August, 2023 |
| UI Languages: | 20 |
| MD5: | 4210d66216102a3ba1efd525a0f6aec3 |
| Free Version: | Download Now |
(Mac)
| Name: | SysTools OST Converter for Mac |
| Version: | 4.0 |
| Size: | 80.7 MB |
| Release Date: | February, 2024 |
| UI Language: | English |
| MD5: | 833d595b0df076bb6b6b8415d8a94344 |
| Free Version: | Download Now |
Trial Limitations
Limitations
Free Demo version of OST Converter software will generate Preview of OST mailbox data & Support to Convert only 25 Items per Folder from Outlook OST file to 
, MBOX, vCard, EMLX, NSF format.
System Specifications
(Windows)
Hard Disk Space
100 MB of free hard disk space required
RAM
4 GB of RAM (4 GB is recommended)
Processor
Intel® Core™ 2 Duo CPU E4600 @ 2.40GHz 2.39GHz
(Mac)
Hard Disk Space
100 MB of free hard disk space required
RAM
4 GB is recommended
Processor
Mac Computer with Intel Processor
Mac Computer with Apple Silicon (Apple M1)
Supported Platforms
(Windows)
Windows 11 (64-bit), 10, 8, 7 (32-bit or 64-bit) & Windows Server 2022, 2019, 2016, 2012 R2, 2008
Compatible with Microsoft Outlook 2000, 2003, 2007, 2010, 2013, 2016, 2019, 2021 (32/64 bit)
(Mac)
MacOS X 10.8 (Mountain Lion), MacOS X 10.9(Mavericks), MacOS X 10.10 (Yosemite), MacOS X 10.11 (El Capitan), MacOS X 10.12 (Sierra), MacOS X 10.13 (High Sierra), MacOS X 10.14 (Mojave), MacOS X 10.15 (Catalina), MacOS X 11.0 (Big Sur), MacOS X 12.0 (Monterey), MacOS X 13.0 (Ventura), MacOS X 14.0 (Sonoma)
Application Pre-Requisites
(Windows)
Product Guides
FAQs
Electronic Delivery
Get an Overview of Outlook OST File Converter Features – Free and Full Version
| Features | DEMO Version | FULL Version |
|---|---|---|
| Add and Export Single or Batch OST File | ||
| Two Scanning Mode (Quick & Advanced) for OST | ||
| Preview OST Emails with Attachment | ||
| Remove S/MIME & OpenPGP Encryption from OST File | ||
| Supports Windows 11, 10, 8, 7 (32 bit or 64 bit) & Windows Server 2019, 2016, 2012 R2, 2008 | ||
| Convert Outlook OST to File to 15 Formats | 25 Items/Folder | All Items |
| Cost | FREE | $49 |
Common Questions Asked by User
Most Common Queries Related to Outlook OST File Converter
“I’m having an OST file and I want to convert it into some other format like 
so that I can access it from some other platform than Outlook. How can I convert OST file?”
Steps to convert Outlook OST files:
“I want to convert an OST file when the original server is gone and I’m left with an orphaned OST. My original server was W2K3 SP2 w/ E2K3 SP2. So, do I’ve to rebuild the server the same as it was before along with passwords to convert an orphaned OST? Any idea?"
"“Initially we were using MS Outlook in our organization and now shifting our data to some other email client. But, the problem is we have large-sized Outlook OST files. How to convert bulky OST files?"
"I have 3 GB of Offline OST file, I have taken backup of OST file. What should be the process if I want it to re-import on Exchange Server?"
Check Out What Our Clients Say About Us
See What They Have to Say Who Trusted SysTools OST Converter Tool
See What They Have to Say Who Trusted SysTools OST Converter Tool “A few days back one of my clients sent me an OST file and I wanted to access that file with my email client i.e., Mozilla Thunderbird. But, I was unable to do so. Then, I got to know about SysTools OST Converter Tool. I downloaded it and after using it I found this software amazing. It converts the OST file rapidly and even without losing a single bit of data. Everyone must try this at least once.”
Charlotte Gatty, Austalia
Business Owner
After uninstalling Microsoft Outlook, I left with some OST files. I wanted to convert those orphaned OST files into some other format. I tried several manual solutions to convert OST but none of them worked well for me. After a while, one of my friends recommended me to use SysTools OST Converter and trust me it proved like a boon to me. It converted orphaned OST files simply without Outlook installation and data loss. Thank you, SysTools!
Felix Haug, New Zealand
Analyst
Converting over-sized OST files was almost impossible for us until we came across SysTools OST Converter Software. With the help of this software, we have converted multiple large OST files into different file formats in a single go. The user interface of this software is very simple and it is designed in such a way that even a non-technical user can operate it without any technical expertise.
Thomas F. Haynes
Doctor
I had some OST files encrypted with S/MIME encryption and for some reasons, I needed to convert those files into some other format. I searched on the web for some automated solutions that can convert an encrypted OST file but didn’t get satisfactory results. One day while surfing some forums, I found SysTools OST Converter Tool and after using this I was amazed by its performance speed and accuracy. This tool really deserves 5-star rating.
Nino Hellström, Sweden
Android Developer
Batch Conversion Using Search Option
OST Converter Software - Screen
OST Converter - Export Options
Advanced Export Settings
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