Email MigrationMBOX

How to Import MBOX to Gmail With or Without Thunderbird?

Open MBOX file in Gmail Using 2 Best Methods of 2025

Are you looking for a reliable solution to import MBOX to Gmail account? If so, then you are on the right track. Here, we will discuss the best possible methods to import MBOX file to Gmail with or without Thunderbird. So let us get started.

In this digital world, emails have become a crucial part of our daily communication. And Gmail is offering a robust platform to manage your emails efficiently. That is why people are looking to import MBOX to Gmail without Thunderbird. But the process might seem challenging, especially if you don’t want to use Thunderbird. If you are also someone who is looking to open large MBOX file in Gmail without Thunderbird, then this blog is for you.

What is the MBOX file?

MBOX is the standard file format for storing several emails, contacts, and calendars in a text file. If you are using Thunderbird, SeaMonkey, Entourage, Eudora, Apple Mail, etc. then you can easily open .mbox files.

But they are all desktop-based email applications. That is why many people are looking to import MBOX to Gmail so that they can easily access their data anywhere.

There is no direct option from MBOX-supported email clients to transfer the data directly to the Gmail account. To get an error-free migration, try the automated solution.

Import MBOX to Gmail With Thunderbird

MBOX is a popular file format for storing email messages. If you have an MBOX file that you would like to import into Gmail, you can do so using a few different methods.

You need to first install the Thunderbird application if not installed. Then install the Add-on to import MBOX to Gmail with Thunderbird. Follow these steps to achieve this:

Step 1. Open Mozilla Thunderbird on your PC and click Email to add your Gmail account.

Step 2. Now, go to the three horizontal lines in the right-top corner and select “Add-ons and Themes“.

Step 3. A new tab for Add-ons will open. Here search “ImportExportTool NG” and click on the green button mentioned (+ Add to Thunderbird).

Step 4. After adding the ImportExportTool NG add-on, go to the Mail tab.

Step 5. Here, right-click on the “Local Folders” and select the new folder.

Step 6. Then right-click on the new folder and select “ImportExportTools NG“.

Step 7. Now, the Import Tool window will appear. Choose the “import from a file” option and click Continue.

Step 8. Select the “Import directly one or more MBOX files” option and click OK.

Step 9. Choose the MBOX file you want to import.

Step 10. Now, to import MBOX to Gmail with Thunderbird, just drag and drop it from the Local Folders to your inbox.

This is how you can easily import MBOX file to Gmail with Thunderbird.

Limitations of This Manual Method

  • First, it is a time-consuming and complex process. Also, the user needs some technical stuff to complete the process.
  • You may lose some data if you don’t follow the proper procedure to import MBOX to Gmail manually.
  • This manual method is not well suited for handling large-sized files or folders with attachments.

How to Import MBOX File to Gmail without Thunderbird?

Yota MBOX Converter Wizard is a powerful tool to import MBOX to Gmail without Thunderbird. It supports all email clients that store data in .mbox format without any trouble. You can easily migrate several files without any hassle. Apart from that, the software is proficient enough to maintain the folder hierarchy and metadata throughout the process.

Along with this, you can upload MBOX to Office 365 account,  MBOX to Hotmail or Outlook.com, and many more. It does not require the installation of any external software to perform the migration process. With this tool, you can easily upload MBOX files into Gmail account without installing Thunderbird.

To start the email migration, first, you need to download and install the software on your system. Then follow the below steps to import MBOX file to Gmail account.

Steps to Import MBOX to Gmail without Thunderbird are:

  1. Run Yota MBOX to Gmail Import Tool. Click on Open>> Email Data Files>> MBOX Files.select mbox file
  2. Preview the files and select the required files to migrate.view mbox files
  3. Apply filters on emails and import MBOX file to Gmail selectively.import mbox to gmail without thunderbird selectively
  4. Now, click on Export and select Gmail as a saving option.import mbox file to gmail
  5. Enter the Gmail login details and hit the Save button to start the process.import mbox to gmail without thunderbird

You can watch this video to Import MBOX to Gmail:


Once the process is completed, you can easily open MBOX file in Gmail account without any hassle.

Prime Features of MBOX to Gmail Migration Tool

  • Import Multiple Files at Once: The utility allows the users to import MBOX file to Gmail account in bulk within a single process. It is the smart solution to migrate MBOX files into multiple email clients.
  • Retains Data Integrity: If you are using this tool to accomplish this task, then there will be no data loss or data corruption. All the meta properties and email formatting remain the same throughout the process.
  • Import Selective Items: With extensive data filtering options, this tool stands out above its competitive tools. The ability to select specific data to migrate, and the option to filter from a specific date range, help you quickly compile the files you need and you can easily import MBOX to Gmail without Thunderbird.
  • Preserve Attachments also: Attachments are the most important files nowadays as they contain data that no one wants to lose. The wizard ensures you that all the attachment files will be transferred along with emails in their original form. Also, if you want to extract attachments from MBOX files, you can do that with a few easy steps.
  • No File Size Limitation: The tool does not impose any restrictions to open MBOX file in Gmail accounts. You can add as many files as you want to the software panel. It is a highly optimized solution that provides you with faster and quicker conversion.
  • Wide Compatibility: The software has been specifically designed for all Windows users to import MBOX to Gmail. It can smoothly run on all the latest Windows OS including Windows 11, Windows 10, Windows 8, etc. It also supports all MBOX-supported email clients like Thunderbird, IncrediMail, Opera Mail, Mac Mail, etc.

import mbox to gmail

 

Free Download the Tool

If you want to test the working of the software then download the free tool. It allows you to export fewer items but you will get to know the features and capabilities of the tool.

Ready to import MBOX file to Gmail without Thunderbird? Download our free MBOX to Gmail Migration tool now and streamline your email migration process!

Free Download Buy Now

What’s More?

This software can be used to export MBOX files into multiple formats. It allows you to convert MBOX to PDF, document MBOX to PST file for Outlook, MBOX to CSV for Excel, MBOX to TXT plain text file, and many more. Overall, it is the best tool to transfer mailboxes.

Frequently Asked Questions

How do I import MBOX to Gmail without Thunderbird?

Manually, you cannot import a mailbox to Gmail without using Thunderbird. You can use the Yota MBOX to Gmail Import tool to import MBOX file to Gmail without Thunderbird.

Can I migrate multiple MBOX files to Gmail at once?

Yes, the tool supports bulk migration that allows users to import multiple MBOX files to Gmail account in a single process.

Can I open MBOX in Gmail account?

Yes, after importing MBOX file into Gmail, you can easily open mailbox in Gmail account.

Conclusion

In the above post, we have shared the best solutions to import MBOX to Gmail with or without Thunderbird.  You can choose any of the methods that meet your needs.

To import MBOX to Gmail without Thunderbird, you need to use the email migration tool mentioned above. This will not lose any single data during the whole process. It has advanced features that not only make the process open MBOX file in Gmail effortless but also provide you the highly precise data in a trouble-free manner.

Now, we are hoping that you know how to import MBOX file to Gmail account quickly and instantly. We always suggest you try the demo version of the tool first as it is free of cost. This trial edition lets you export 10 files per folder to your desired destination. For unlimited migration, you need to purchase the pro version of the tool.