What Programs can Open MBOX Files? Explore in Detail

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2025/07/14
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5 mins read


Are you facing difficulty in finalizing what programs can open MBOX Files? If the answer is ‘YES’, you are at the right blog with the right question. This blog will answer your query and help you to select the best and the smartest programs to open MBOX Files.

What Programs Can Open MBOX Files?

MBOX file is storing several emails and their attachments that can be opened, viewed, read and managed by various purpose-built tools and email clients. There are several programs through which users get the answer of ‘What Programs Can Open MBOX Files?’

This blog is focused on the best MBOX file viewer for windows, mac and as well as web-based

programs. It covers platform, cost, add-on (if needed), features, and most effective for. Let’s dive into it.

Below mentioned table specify the list of various email clients and specialized tools, which emphasis on what programs can open MBOX files: 

Email Clients Purpose-Built Tools
Mozilla Thunderbird BitRecover MBOX Viewer (Desktop-Based)
Apple Mail (MacOS only) -
Opera Mail (Legacy) Online MBOX Viewer (Browser-Based)

Now, jump onto the detailed information and understanding about software to open MBOX files through different programs.

Program 1: Email Clients

This program assists users to open, view, analyze and manage MBOX files, contents, and emails quickly and in the simplest way.

Mozilla Thunderbird

mozilla thunderbird

Program: Windows / MacOS / Linux

Cost: At no-charge

Features:

·       Assist multiple accounts.

·       Widely-used email client.

·       Open access software.

·       Help to email search, open, view attachments, manage successfully.

·       Desktop-based application.

Add-ons: ImportExportTool NG

Effective for: users who want to manage MBOX files or data independently.

Step-by-step guide of ‘What programs can open MBOX files’ in Mozilla Thunderbird:

Step 1: Download & install Thunderbird on your PC through the official website.

Step 2: Launch Thunderbird and setup email by filling name, email address & password.

Step 3: Also, can add multiple accounts: Setting > Account Setting > New Account > Mail Account and then save.

Step 4: Install Add-ons in Thunderbird: Menu > Add-ons & Themes > Search ‘ImportExportTools NG’ > Add to Thunderbird > Restart Thunder.

Step 5: In the left side mail panel, right click on ‘Local Folders’ and create a ‘New Folder’. Give that folder a name ‘Imported Files or Emails’ and click create.

Step 6: Import the MBOX file: Right click on the created folder > Navigate to ImportExportTools NG > Import MBOX Files > Individual MBOX Files > select ‘.mbox’ file > ok.

Step 7: Checked Imported files inside the folder created by the name ‘Imported emails’. This will help to open, read and reply as a regular email.

Apple Mail

Program: MacOS

Cost: No-charge with MacOS

Features:

·       Simplest way to import MBOX files

·       Works well with mac and other apple devices.

·       Desktop-based application

·       In-app search and view emails.

Add-ons: Native MBOX import

Effective for: useful for Apple Mail MBOX exports and for Gmail Takeout as well.

Opera Mail

Program: Windows / MacOS

Cost: Free

Features:

·       Support and easy way to import MBOX files.

·       Functional for opening and reading MBOX emails or data.

·       Desktop-based application

·       Portable email client.

Effective for: useful for those users who are easy to work with old versions and portal email clients as well.

Program 2: Online Tool to View What Programs Can Open MBOX Viewers

Online MBOX Viewer

online mbox viewer

It’s a web-based and free MBOX file viewer that supports viewing and reading the data in MBOX files directly from the web, without installing any app and software on your PC.

Program: Browser-based

Cost: No-charge

Features:

·       Open and read MBOX data.

·       Feature of drag n drop files.

·       Works well with large files as well.

·       web-based application

Effective for: useful for users who want to see temporary MBOX files and emails.

How to use an Online MBOX File Viewer?

Visit the above given link ‘BitRecover Online MBOX Viewerand follow written steps.

Here are 3 major steps to open online MBOX file viewer that allows you to open and go through MBOX file, as they are:

  1. Drag & Drop MBOX file into the visible box

  2. Wait till the process completion of the MBOX File Loading and read process.

  3. After successfully loading the file, ready to Open & View MBOX email messages by scrolling down.

Program 3: Offline Programs to Open MBOX File

Offline MBOX File Viewer

offline mbox viewer tool

It’s a desktop-based application which facilitates no-cost to users to open, view, read and manage data of MBOX files on a computer desktop with active internet, without needing email clients such as Thunderbird, opera mail etc..

There are multiple useful offline MBOX viewers available that support users to manage MBOX files and one of the most effective tool is 'BitRecover MBOX Viewer' (Free Version)

Program: Browser-based

Cost: Free

Features:

·       Open, read, manage and export MBOX data from different email clients like Thunderbird, Opera Mail, SeaMonkey etc..

·       It follows and is structured through folders.

·       Rapid loading of large files.

·       desktop-based application

Effective for: useful for professionals, who receive MBOX files frequently.

What is the procedure of MBOX Viewer?

It's a lightweight and completely portable MBOX file viewer. The procedure of BitRecover MBOX Viewer involves several major steps. As they are:

Step 1: Download & install MBOX Viewer and follow the instructions to set-up the tool.

Step 2: Launch software and choose MBOX Content by Add Files or Add Folders, from the existing files.

Step 3: After completion, there's a file tree on the left side panel, from the Open & View imported MBOX file and preview it’s: Subject; From/To; Date; Body Content; Attachments.

Step 4: Users can overview attachments and save them separately.

Summary of ‘What Programs Can Open MBOX Files’

Programs Types Platform Effective For
Mozilla Thunder Email Client  Window/Mac/Linux Managing MBOX data independently
Apple Mail  Email Client  Mac Apple Mail exports
Opera Mail Email Client  Window/Mac Lightweight and old Version
Online MBOX Viewer Online  Web-based Temporary manage MBOX data
Offline MBOX Viewer Offline Desktop-based Professionally manage data

Conclusion

We have found the solution of ‘what programs can open MBOX Files?’. MBOX files should be managed carefully and sensitively, for that purpose there are several effective programs available to open MBOX files and manage data successfully. Selection of programs depends on the need and the requirement of the user.

Email Client Like Thunderbird, Apple Mail, Opera Mail is an effective tool for managing and replying of emails, on the other hand, Online MBOX File Viewer is ideal for quick and read access only. The most powerful and smart way to study and manage MBOX files successfully is MBOX Viewer, as it provides several facilities and contains features which help users to understand the emails data in depth and also helps in exporting files as well.

 


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