Best Thunderbird to Outlook Converter Tools

Conversion of data from one email client to another is more often than not, a hectic process. There are risks of change in encoding formats which can result in severe loss of data. But this complexity reaches a whole new level when two major email platforms are involved – Mozilla Thunderbird and MS Outlook.

Ever since the launch of MS Outlook, there has been a trend among Thunderbird users to switch to Outlook. And this migration has grown considerably with the introduction of MS Outlook 2021 and 2016. But this whole email migration scenario is filled with risks of data loss which is unavoidable without using the proper software. That is why you will find experts recommending some of the best Thunderbird to Outlook Converters out there.

But how would you know which one is perfect for your needs? The online market is filled with a multitude of software that claims to be the best among its counterparts. But of course, no vendor will say that their product is average or worthless. It is at least the very best for them. That is why here we have the list of top 5 Thunderbird to Outlook Converter which will help you out in your needs.

Best Thunderbird to Outlook Converters in 2021

Below is a collection of the very best Thunderbird to Outlook Converter software. The features which helped in shaping this list includes performance, conversion rate, flexibility, data-loss ration, filters, and other customizable options during the export process. You are sure to find at least one software (if not more) among them perfect for your needs.

Do note that every software solution here is supports all Windows versions including Windows 10, 8.1, 8, 7 and below. However there may be some which are also available for Mac machine. Rest assured, the tools generate PST files compatible with Outlook 2019, 2016, 2013, 2010, 2007 as well as Mac Outlook 2019, 2016, 2011.

SysTools Thunderbird to PST Converter

SysTools Thunderbird to Outlook Converter is a popular email migration software from SysTools. It features one of the most intuitive user interfaces that are self-guided and easy to work with. The entire process can be summarized in three simple steps: ‘Add’, ‘Preview’ & ‘Export’. Thus making it easy to use the software application to convert multiple Thunderbird MBOX files into Outlook PST format.


  • Can auto detect Thunderbird mailboxes without the need of having users to locate MBOX files.
  • Provides Folder & File mode options to add Thunderbird data files (without extension MBOX files, SBD folders)
  • Create separate PST for each Thunderbird file or single PST for all of them combined.
  • Converts the Thunderbird data into Outlook supported PST format in batch mode or selectively.
  • A detailed panel for users to view all the emails and attachments in 8 different views.
  • A unique PST splitter option to divide large mailboxes into multiple smaller ones.
  • Retains data integrity and folder structure
  • Available for both Windows and Mac


This software is an all-rounder with a separate option to load Thunderbird files along with MBOX files and Apple Mail files. Unlike the previous tool, MailExtractorPro views the without extension data files of Thunderbird differently as compare to generic MBOX files. A simple one window user interface also makes it quite an easy tool to use.


  • Autoload Thunderbird database
  • Manually add the Thunderbird profile folder
  • Also preserves the data integrity
  • Maintains the folder structure
  • Provides normal mail view of Thunderbird emails
  • Option to split Thunderbird file into smaller sized PST files
  • Available for both Windows & Mac

Datahelp Thunderbird to Outlook Converter

A trusted name in the field of data migration, DataHelp has an active presence in the field of best Thunderbird to Outlook converter software as well. It focuses more on conversion rather than customization. Overall a really good software with a simple yet powerful UI.


  • Supports selective and batch export of Thunderbird emails
  • Preserves metadata properties
  • Has support for conversion of Thunderbird folders to PST
  • Allows creation of single or separate PST files as per convenience
  • Convert emails along with attachments
  • Has drag and drop feature to add Thunderbird MBOX files
  • Available for Windows

Softaken Thunderbird Converter

Softaken also reserves a spot in the top 5 MBOX to PST converter tool. And similar to that software, this application also provides effortless migration of Thunderbird data into Outlook in just 4 steps: Add, preview, apply settings & convert. It features an efficient mechanism to export multiple Thunderbird emails into PST format without any errors.


  • Option to add multiple MBOX files kept inside a folder
  • Separate option to add locally stored Thunderbird mailboxes
  • Removes duplicate emails during conversion
  • Accurate transfer of emails without any loss of the database
  • Save PST files at the desired location
  • Generate new PST or append existing PST file
  • Available for Windows

Zook Thunderbird to PST Converter

Quite similar to other products, Zook software makes a good name in the list of top 5 best Thunderbird to Outlook converter. The difference is that does not have the ability to autoload Thunderbird mailboxes. Although it does not prevent this software from fluently converting the Thunderbird emails to PST format. Simply rename all the Thunderbird files such that they end with .mbox extension, and look at this software go about the conversion in quick time.


  • Convert Selective Thunderbird files into PST
  • Export multiple files with native folder mode option
  • Option to save the file at the preferred location
  • Preserves mail formatting and email attributes
  • Fast and error-free conversion
  • Available for Windows

(Each of the provided software in this Best Thunderbird to Outlook Converter list is available for free on as trial basis. Users can easily download them for free from official sites and see if it fits their needs. )

Honorable Mentions:

  • MailsDaddy Thunderbird converter
  • BitRecover Thunderbird Export
  • Advik MBOX Converter


Although Thunderbird and Outlook are two of the most popular email clients, switching from one to another is a hectic process. This is mainly due to the fact that there are no native options provided for such a process. This list defines the best Thunderbird to Outlook converter software to use in 2019 as per the latest trend. Hopefully, it will help users who have faced difficulties in this arena in choosing a formidable tool perfect for their use.

Related Articles

Leave a Reply

Back to top button