Free MBOX Viewer





SysTools MBOX Viewer Tool

Both Desktop Version and Free Online MBOX Viewer Available

(Average Rating 4.6 Based on 2403 Reviews)
  • Permits to View MBOX Emails Along with Its Attachments in a Seamless Way
  • MBOX Viewer Provides Multiple Preview Modes: Hex, HTML, RTF, Header, etc.
  • Supports MBOX/MBS/MBX Files of Thunderbird, Entourage, Opera Mail, etc.
  • Allows to Browse and Read MBOX Files without Email Client Dependency
  • Auto-Fetches MBOX File from the Default Profile Configuration of Email Clients
  • Preview MBX and MBS Files of Different Email Clients: Eudora, Opera Mail, etc.
  • MBOX File Viewer Maintains the Hierarchy of the Folders Containing MBOX Files
  • File Mode Permits to Browse and View MBOX / MBX / MBS Files Individually
  • Folder Mode Allows Adding the Complete Folder Containing MBOX Files
  • Performs In-Depth Analysis of MBOX Emails for Forensic Purposes
  • Explores and Displays all MBOX Files Items with Item Count in Software Panel
  • Compatible with Windows OS 11, 10, 8, 7, Windows Server 2019, 2016, 2012, and 2008
  • Installs MBOX Viewer on Multiple Computers and Laptops or Use Online MBOX Viewer
  • Updates to MBOX Viewer Pro Version for Advance Search and Export Feature
  • SysTools Provides Software to Install on PC or Use Online MBOX Viewer

Free Live Demo - Either Choose Free Desktop Version or Free Online MBOX Viewer

Watch Live Video of Free MBOX Viewer Tool

Most required tool for Forensics Users to view MBOX file data without installing any third party email application.

Free MBOX Viewer & Its Pro/Pro+ Versions

Get A Plethora of Features in multiple editions of frre MBOX viewer. Know what each edition offers & how it’s different from one another

MBOX Viewer

Understand what features this MBOX Viewer tool offers to users once they download & install it on their system.

  • View Single file or Multiple files using the File & Folder Mode.
  • 8 Preview Modes to view the data as per the requirements.
  • Software allows users to preview Emails along with their Attachments.
  • Sort and view emails according to properties like From, To, Subject, Date, Attachments etc.
  • Free Online MBOX Viewer Avaialble to Avoid System and OS Dependency


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Pro Edition

For additional features for viewing MBOX files, get the Pro edition of the software on your computer without any hassles.

All Features of MBOX Viewer

  • Advance Search options to select particular emails quickly without hassles.
  • Save & Load Scanned Files to make the entire procedure more efficient.
  • Export to PDF file format with Advance Settings to customize PDF layout.
  • Print the MBOX emails along with attachments or even without attachments.

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Pro+ Edition

MBOX Viewer Pro+ edition is the most advanced edition of the software providing all advanced features to users.

All Features of MBOX Viewer Pro

  • Export to PST File Format with the Advance Settings like Split PST & more.
  • Change to MSG File Format with Naming Convention & Date Filters option.
  • Export to EML Format with the Advance Settings for further EML customization.



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Awards & Ratings of SysTools MBOX Viewer Tool

Highly Rated & Most Popular Free MBOX Viewer Software for Your Ease

Awards & Reviews

MVP & Expert Reviews

View MBOX Files

Read MBOX / MBS / MBX Files of Multiple Email Clients

MBOX viewer developed by SysTools is an efficient and reliable way to read and view MBOX / MBS / MBX files associated with numerous email clients. The software is integrated with advanced algorithms, which permit the user to read MBOX file emails without email client dependency. The software is capable to explore and view MBOX files of multiple email client such as:

  • Mozilla Thunderbird
  • Apple Mail
  • Eudora
  • PowerMail
  • Kmail
  • Netscape
  • Evolution
  • Spicebird
  • Horde Group Webmail
  • SeaMonkey
  • Google Vault Files(*.mbox)
  • Google Takeout(*.mbox)
  • Becky! Internet Mail
  • Claws Mail
  • Cone
  • Postbox
  • Mulberry
  • Opera Mail
  • Entourage
  • Alpine

MBOX Viewer Pro

A Simplified Way to Search and Save MBOX File

The Advanced Search option of SysTools MBOX Viewer makes it possible to search a particular MBOX file email from various MBOX files. The tool also allows users to save the search results in Portable Document Format.

  • Advanced Search: This feature permits the user to search for a specific MBOX file among tons of MBOX files in a hassle-free way. To make the search process more specific, the user can make use of filters and operators. Read More
  • Export MBOX to PDF: Sometimes, you need to save MBOX files into Portable Document Format. For example, the evidence carved out of MBOX files by a Forensic Examiner has to be presented in court in the Portable Document Format. This software helps you to easily save emails as PDF files.

View In-Depth Details Associated With MBOX Files via SysTools MBOX Viewer

Types of Preview Modes To view MBOX / MBX / MBS files, the Thunderbird MBOX Reader software provides multiple preview modes such as:
  • Mail View: Displays various attributes of an email such as Path, From, Cc, Bcc, and Subject
  • Hex View: Shows MBOX emails in the Hex Code
  • Properties View: Displays various properties of an MBOX file, such as Message Class, Size, and Date
  • Message Header View: Shows message header of the MBOX email with all the details
  • MIME View: Shows various details of an email, such as MIME-Version, Content-Type, and X-Priority
  • HTML View: Displays MBOX emails in the HTML format with all the tags
  • RTF View: Displays MBOX messages in the plain text format
  • Attachments: Displays attachments associated with MBOX emails
MBOX Email Attributes One can easily read and view MBOX file email message along with the attributes associated with it such as:
  • Path
  • From
  • To
  • Cc
  • Bcc
  • Subject
  • Attachments
  • Date
  • Time
Sort MBOX Emails After loading of MBOX emails, the user can sort the emails according to different properties such as:
  • From
  • Subject
  • To
  • Sent
  • Received
  • Size(KB)

Proficient Features Associated With SysTools MBOX Viewer

Free MBOX Reader Tool to Browse and View MBOX Files with Attachments

Read MBOX File with Attributes

View MBOX Emails with Attributes

With the MBOX Viewer utility developed by SysTools, the user can view and read MBOX file emails with proper formatting. Moreover, the MBOX Email Reader software permits the user to view an MBOX emails along with the attributes associated with it, such as From, Subject, To, Sent date, Received Data, and Size.

View MBOX File with Attachments

Preview Attachments of MBOX Emails

The MBOX Reader tool can view and explore MBOX file emails and their associated attachments. You can also preview the attachments of the selected email directly from the SysTools Free MBOX File Viewer Software’s interface via the Attachments Preview Mode (Zoom in/out, Rotate).

Auto Load MBOX File

Auto-load File from Configured Profile

The Thunderbird MBOX Reader Portable Tool provides an in-built functionality to autoload MBOX files from the default location if you have configured a Mozilla Thunderbird Profile. The MBOX Mail Viewer tool provides two options to view MBOX files:

  • Select Single Identity: Choose this option to preview MBOX files within the selected Configured Profile or Identity of an email client.
  • Preview All Identities: Choose this option to preview MBOX files within all Identities

File / Folder Mode

Preview by File or Folder Mode

This Forensic Windows MBOX Viewer Free software permits to browse and view MBOX files via two options: File Mode and Folder Mode

  • File Mode: This option allows users to add and preview a single MBOX file.
  • Folder Mode: This option allows users to browse the folder consisting of multiple MBOX files and preview them in bulk.

Read Multiple MBOX Files

View Multiple MBOX Files

The Forensic MBOX Mail Viewer software permits the user to read and view various MBOX files in a batch mode. One can easily explore multiple MBOX files via the tool without any email client installation.

Dual Screen Mode

Switch Screen View Mode

One can easily view MBOX emails in two different modes. The software allows the user to view MBOX files in the Horizontal view mode as well as Vertical view mode. One can select any view mode as per the convenience to read MBOX files.

No Email Client

No Email Client Dependency

SysTools MBOX Viewer Tool is designed with advanced algorithms, which makes it possible for users to read MBOX emails without the installation of any email client. The software is also capable of viewing MBOX / MBX / MBS files of multiple email clients.

Easy Interface

Simple User Interface

The free downloadable MBOX File Reader software has a user-friendly interface and allows users to read MBOX file emails with attachments without any problems. It can be easily operated by both new and experienced users to read and view MBOX files.

Scan MBOX File

Quick Scanning of MBOX Files

MBOX File Reader performs a quick scan of each .mbox file and lists all its emails with proper folder structure. This Thunderbird MBOX Viewer previews the scanning process and displays the file size and creation date.

No MBOX Size Limitation

No Size Limitation

SysTools MBOX File Viewer does not have any limitations on the file size of MBOX File. This Thunderbird Email Reader allows you to view MBOX files of any size and view them successfully in MBOX Reader Software.

To Avail Advanced Functionalities Switch to SysTools MBOX Viewer Pro

Scan / Index File

Scan and Index MBOX File

The SysTools MBOX Viewer Pro software scans, loads and asks to Index the entire MBOX file items. The user can allow Forensic MBOX File Viewer software to index the items of the MBOX file to later search for any emails within the MBOX file.

Add Multiple Files

Add Multiple MBOX Files

One can easily scan and preview multiple MBOX files through Free MBOX Reader software. The user can easily browse and view MBOX files individually. The MBOX Viewer software will load each one of the MBOX files and also displays the item count.

Advance MBOX Search

Advanced Search within MBOX File

The SysTools MBOX Email Archive Viewer software makes it easy for the user to search for a specific MBOX email by providing the Advanced Search feature. The user just has to enter the relevant word or phrase in the search bar. The software will display all the emails related to the searched keyword. One can also customize the search process by using search filters and operators. Read More

Export Emails

Export in Portable Document Format

One can save selected MBOX emails or the entire MBOX file along with attachments in Portable Document Format via the MBOX File Viewer Pro software. The software maintains the formatting of MBOX emails while exporting them to Portable Document Format. After the conversion, the user can easily view MBOX emails with attachments in the Portable Document Format.

Multiple Naming

Multiple File Naming Options

While saving MBOX files into Portable Document Format, the user can make use of different naming patterns provided by SysTools MBOX Viewer Pro tool. One can save Portable Document Format by subject, date, auto incremental option, etc. The user can also name the resultant file by providing the name of his/her own choice.

Make New Folder

Make New Folder to Save Files

The MBOX Email Viewer software also allows the user to save the Portable Document Format at any desirable location on the user’s system. Moreover, one can also create a new folder in Windows OS 11, 10, 8, 7, Windows Server 2019, 2016, 2012, and 2008 versions using the MBOX File Viewer software directly from the software interface to save the resultant file.

MBOX Viewer Software Specifications

Free Download MBOX Reader Software

Software Download

Size: 14.4 MB

Version: 4.0

MD5: fedacf9b6fb4e5fe19a50a59c388cefa

Software Limitations

The free version of SysTools MBOX Viewer Tool allows you to only preview all emails with attachments.

System Specifications

Hard Disk Space
100 MB of free hard disk space required

2 GB is recommended

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

Operating System

Microsoft Windows 11 (64-bit), Windows 10, 8, 7 (32 bit or 64 bit) & Windows Server 2019, 2016, 2012 R2, 2008


If you are using Windows 11 (64-bit), Windows 10, 8, 7 (32 bit or 64 bit) & Windows Server 2019, 2016, 2012 R2, 2008, then please launch the tool as "Run as Administrator".
Microsoft .NET framework 4.5 and above




Electronic Delivery


Upgrade to MBOX Viewer Pro or Pro+ Version

Upgrade to MBOX Viewer Pro for Advance Search and Export Option

Features Viewer PRO PRO +
Add MBOX File
Preview Emails with Attachments
Free Installation on Multiple Computers
Search MBOX Files
Export to Portable Document Format
Export to PST, EML, MSG
Split Outlook Data File
Cost FREE $69 $129
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Frequently Asked Questions

Commonly Asked Questions and Answers

How can I view Thunderbird’s MBOX Files via SysTools MBOX Viewer tool?

Free MBOX Viewer

To view MBOX files associated with Thunderbird email client using MBOX Viewer, the user has to perform the following steps:

  • Step 1: Download SysTools MBOX File Viewer Tool
  • Step 2: Browse the MBOX File of Thunderbird, Apple (Mac) Mail, or Entourage
  • Step 3: Preview & View MBOX File in Batch With Attachments
  • Step 4: Auto-fetch the MBOX File from the Default Profile Configuration of Thunderbird
  • Step 5: Forensic MBOX File Viewer allows switching the View mode: Horizontal or Vertical
  • Step 6: The tool supports to view and read .mbox files in Windows 11, 10, 8, 7 version.

Yes, you can read MBOX files using SysTools MBOX Viewer on Windows Operating system irrespective of the Windows version.

Yes, you can add multiple MBOX files at once via the SysTools MBOX Reader software. You just need to select the Add Folder option and the software will load all the content associated with MBOX files.

Yes, the software is capable to view and read MBX / MBS files also.
No, you do not need to install any email application to read and view MBOX / MBS / MBX files via the software. The MBOX Viewer is capable to view MBOX files without any email client dependency.
Yes, you can read and view corrupt MBOX files by using the MBOX Reader tool.
Yes, the software provides different preview modes to view MBOX file emails with all their associated attributes. To read MBOX file emails with various details, one can view MBOX file via Hex View, Properties View, HTML View, RTF View, Message Header View, etc.
No, the MBOX Reader software is integrated with powerful security and data protection algorithms. So, there is no chance of the security breach or data loss while working with the software.
Yes, SysTools MBOX Viewer allows the user to view and browse MBOX file emails along with their attachments. The user can view different types of attachments, such as text, documents, and images.
Yes, you can search for a specific MBOX email by using the Advanced Search Feature provided by the software. To avail the functionalities of the Advanced Search feature, you need to upgrade to SysTools MBOX Viewer Pro version.

What Customers Are Saying

SysTools MBOX Viewer Software Verified Reviews
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