We develop ourProducts to meet your needs & solve your problems.

“Easy and accurate data migrations is everybody’s concern, and we feel obliged to deliver this advanced PST to MBOX Converter.”

Managing Director KernelApps

Salient Features

Know about the integrated features as well as services provided by the excellent PST Converter tool.

Import PST Data to Thunderbird Mailbox

Import PST Data to Thunderbird Mailbox If you are facing trouble in importing entire data of your PST file to Thunderbird, then Kernel Import PST to Thunderbird is the best utility available online. It enables you to repair corrupt PST files, and then migrate it to Thunderbird mailboxes quickly.

Import Corrupt/Damaged PST Files

Import Corrupt/Damaged PST Files Kernel Import PST to Thunderbird is capable of repairing corrupt/damaged PST files that got corrupt due to system failure, malware attack, or sudden shutdown. After restoring the PST files, you can easily import them to Thunderbird mailboxes.

Import Deleted PST Items

Import Deleted PST Items This utility is capable of recovering even deleted items from PST files, and then it allows you to import that data to Thunderbird mailboxes.

Import Large-sized PST Files

Import Large-sized PST Files With the help of Kernel Import PST to Thunderbird, you can also import large-sized PST files easily. It offers a smooth migration process to import PST data to Thunderbird, even if the size of the PST file is very large.

Import PST Data to Other Web-based Emails

Import PST Data to Other Web-based Emails Apart from importing PST data to Thunderbird mailboxes, this software also allows you to import the data to other web-based emails, such as Gmail, AOL, Yahoo Mail, etc. You just need to provide the right credentials for the specified email server while saving the PST file.

Preview PST Data before Migration

Preview PST Data before Migration After adding the PST file, you can preview its entire data in the preview pane. To preview the content, select any folder in the file, and then click the specific item that you want to preview before the migration.

Advanced Filtering Options

Advanced Filtering Options Import PST to Thunderbird tool is integrated with smart filtering options that allow you to select specific data for migration based on filters like date, item type, include/exclude folders, etc. You can also skip already migrated data with this feature.

Save PST Data in Multiple Formats

Save PST Data in Multiple Formats After viewing the content in the preview pane, you can choose to save the PST data in multiple file formats, such as DBX, MBOX, EML, PDF, or a new PST file.

Migrate PST Data to Office 365/Exchange

Migrate PST Data to Office 365/Exchange If you want to import your PST file to the cloud or enterprise environment for better security and collaboration, then Kernel Import PST to Thunderbird software allows you to migrate your data to Office 365/Exchange mailboxes quickly.

Support PST File of every Outlook Version

Support PST File of every Outlook Version No matter, whether the PST file is created by MS Outlook 2016, 2013, 2019 or 2021, the Import PST to Thunderbird software is ideal for repairing every PST file and migrating it to Thunderbird mailboxes without any data interruption.


Here, we provide you the steps to import Outlook PST files to Thunderbird destination with this software.
  1. Launch the Kernel Import PST to Thunderbird tool and add the PST files that are to be imported to Gmail.
  2. The PST files will get added. You can view any of the selected file items for Preview before saving.
  3. Select the desired PST file data and click on Save ≫ MBOX File or MBOX File option on the rightmost panel.
  4. Add filter options such as email metadata, folder, date. Time, Item type, etc. as per your requirement.
  5. Next, use the split PST option if you want to manage large-sized recovered PST file size.
  6. Then select the Thunderbird option, browse and add the saving destination for the MBOX file for final import.
  7. Wait till the PST data is saved in a Thunderbird MBOX file.
Yes, the tool supports all kinds of PST files even if protected, encrypted, corrupted, or inaccessible.
No. But you can add your PST files and have a preview of any of the selected mailbox items. To import the PST files data to Thunderbird, you need to purchase the full version of the software.
No, you would not require any credentials. Our software asks to select the Thunderbird option and then save the selected PST file data to the MBOX file.
Yes, you can view attachments as well other than email metadata like From, To, Subject, etc. Just click of the mailbox email for preview and then click on the attachment to have its preview.
Yes, you can. The Kernel Import PST to Thunderbird tool supports PST files created from all versions of Microsoft Outlook - 365, 2021, 2019, 2016, 2013, 2010, 2007, 2003, 2002, 2000, 98 and 97.

How it Works?

Software Prerequisites & Recommendations

About Software

  • Version


  • License Type

    Home, Corporate & Technician

  • Version Support

    Outlook – Office 365 Outlook, 2021, 2019, 2016, 2013, 2010, 2007, 2003, 2002, 2000, 98 and 97

System Requirements

  • Hard Disk

    50 MB of disk space

  • Memory

    256 MB Minimum

  • Processor

    Intel® Pentium Processor compatible (x86, x64) or equivalent

  • Operating System

    Windows 365, 11, 10, 8.1, 8, 7, Vista, XP, 2000, 98, NT, 95 Windows Server 2016, 2012, 2008 R2, 2008, 2003 R2, 2003

Software Guides

What customers say about Kernel Import PST to Thunderbird

(5 / 5) 438 Reviews

Got this tool on the recommendation of my colleague. And I am very thankful for their recommendation. Great tool.


Email migration is a very complicated process, but I need it. And all thanks to PST to Thunderbird tool for on-time help. Thanks a lot.


Never used many third-party tools on my system, but it was a great experience with the KernelApps tool and their support team.

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