OST to Thunderbird Converter



FreeViewer OST to MBOX Converter

Export Multiple Outlook OST to MBOX Format by OST to Thunderbird Converter

(Average Rating 4.8 Based on 424 Reviews)
  • Convert One or More OST Files into MBOX Along With Email Attachments
  • Scan and Preview Data From Inaccessible or Orphan Outlook OST Files
  • Supports to Transfer Any Size of Outlook Data Files (OST) Into MBOX
  • Does Not Require MS Exchange Server Environment For Conversion
  • Compatible With Outlook 2019 and Including All Below Versions
  • Tool Is Compatible with Microsoft Windows 10, 8.1, 8, 7 and Below Versions

FreeViewer Awards & Reviews

2020 Best Software to Export OST to MBOX

FreeViewer OST to MBOX Converter

3-Step Approach to Export OST to MBOX Format

Features of OST to MBOX Converter Software

OST to Thunderbird Conversion Software's Best Features to Export OST File

OST to Thunderbird

Export Outlook OST into MBOX

The software allows to convert each email from Outlook OST file to MBOX within just a few clicks. It is feasible to migrate multiple emails from outbox, inbox, drafts, etc. into MBOX file format. This will also maintain the folder structure while saving Outlook OST to Thunderbird MBOX format.

Scan & Preview

Scan & Preview All Items of OST

When opening OST files, the software will scan the OST file quickly. It will help the users to rearrange the data from inaccessible Outlook OST emails. Once the scanning is done, the software will create an instant preview of each data within the OST file. It allows viewing all details associated with data items i.e. To, from, subject, date, etc.

Export Selective Data

Save Selective Data Items as MBOX

The users can check or uncheck all data items from OST files that they want to move into MBOX type. By default, Outlook OST to Thunderbird Converter will export all items of OST, but if the users want to migrate the selective item folder, then, they can perform such operation as well. In addition, the tool does not require Exchange environment to convert OST file.

Multiple Email Clients

Export OST to Various Email Clients

MBOX files are being used by a number of email applications such as Eudora, Entourage, Apple Mail, Mac Mail, Sea monkey, etc. Each of these applications lets you import MBOX files from external sources. So after you export the OST email file to MBOX, it will be easier for you to open the inaccessible or orphaned OST file.

Save Data in New File

Customized Way to Save New File

When using OST to MBOX Converter, the software will ask a user to provide the desired file saving location on their local machine. The users can choose any particular location or if required they can also create a new folder from the software panel itself for saving those files. Once the saving location is provided, the software will start the conversion process.

Meta Properties

Ensures to Keep All Meta Properties

OST to MBOX Converter ensures to keep such meta properties intact after migration from Outlook OST to Thunderbird MBOX file. Also, the integrity of data will be maintained throughout the process. Moreover, the meta properties, email attachments, and other attributes remain same after the conversion procedure.

OST to MBOX Converter Software Specifications
Free Download OST to Thunderbird Converter to Export OST File

Software Download

Size: 3.3 MB

Version: 1.0

MD5: 8cdbf600e83940c60bfa58416d63377d

Trial Limitations

Trial Version Of Outlook OST To Thunderbird MBOX Converter Preview Recovered OST Data.

System Specifications

Hard Disk Space
100 MB of free hard disk space required

1 GB of RAM (2 GB is Recommended)

Intel® Core™ 2 Duo CPU E4600 @ 2.40GHz 2.39GHz

Application Pre-Requisites

If you are using Windows 10/8.1/8/7 or Vista, then please launch the tool as "Run as Administrator".
Microsoft .NET Framework 4.5 or above should be installed.
Microsoft Outlook 2003 / 2007 / 2010 / 2013 / 2016 / 2019 (32 or 64 Bit) should be installed and configured properly.

Supported Versions

Microsoft Windows
Windows 10 32bit/64 bit, Windows 8 32bit/64 bit, Windows 7 32bit/64 bit, Windows Server 2012, Windows Server 2008 and All Below Versions.
Microsoft Outlook Version 2003, 2007, 2010, 2013, 2016, 2019 (32 or 64 Bit).


Electronic Delivery

OST to MBOX Converter Full Version Order Now
Get an Overview of OST to Thunderbird Converter Features – Trial vs Full
Features Trial Version Full Version
Add Outlook Offline OST File
Quick Scan Option to Load OST File
Preview OST File with Attributes
Restore all Outlook OST File Items
Support Windows 10 & Below Versions
Export Selective Folder in MBOX
Save Converted File in New Folder
Cost FREE $49
Frequently Asked Questions

Listed Commonly Asked Questions and Answers

How to Export OST File to MBOX Format?

Export OST to MBOX

Steps to Export OST File to Thunderbird MBOX:

  • Step 1: Install & Run OST to MBOX Converter
  • Step 2: Click on Open Option to Add OST File
  • Step 3: Next, Preview Each Data from Outlook OST File
  • Step 4: Click on Save As MBOX Option to Export OST File
Yes, OST to MBOX Converter supports both inaccessible as well as orphaned OST files that are already scanned and the tool recover the data in MBOX format.
No, our Outlook OST to Thunderbird Converter tool is independent of Microsoft Exchange server environment thus, we can easily export all the emails in absence of an Exchange environment.
Yes, OST to MBOX Converter software is easily supported by Outlook 2019, and it's all below versions.
No, there is no file size limitation on the software while converting OST file into MBOX format.
Yes, our product retains the integrity of data after performing the conversion from Outlook OST to MBOX format.
Yes, OST to MBOX Converter is designed in such a manner that converts multiple emails along with attachments without any inconvenience.
What Customers Are Saying
Get User Reviews of OST to MBOX Converter Tool
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