SysTools Free MBOX Viewer

View MBOX / MBX / MBS Files of Multiple Email Clients without any Dependency

(Average Rating 4.7 Based on 2238 Reviews)

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MBOX Viewer Pro & MBOX Viewer Pro+ Features

Free MBOX Viewer





Free Tool to Read MBOX Files with Attachments

  • Permits to View MBOX Emails Along with Its Attachments in a Seamless Way
  • Provide Multiple Preview Modes: Hex View, HTML View, RTF View, etc.
  • Support MBOX/MBS/MBX Files of Thunderbird, Entourage, Opera Mail, etc.
  • Allows to View and Read MBOX Files without Email Client Dependency
  • Auto-Fetch MBOX File from Default Profile Configured of Thunderbird
  • Capable to Preview MBX and MBS Files of Different Email Clients
  • 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
  • Perform In-Depth Analysis of MBOX Emails for Forensic Purposes
  • Explore and Display all the MBOX Files Items with Item Count
  • Compatible with Windows 11 (64-bit), Windows 10, 8, 7 & Windows Server 2016, 2012 R2, 2008
  • Install Free MBOX Viewer on as Many Computers & Laptops as per Requirement
  • Update to MBOX Viewer Pro Version for Advance Search and Export Feature

Free Live Demo - SysTools MBOX Viewer Fully Secured Download Version

Awards & Ratings of SysTools MBOX Viewer Tool

2021 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

With SysTools MBOX Viewer, it is possible to search for a particular MBOX file among various MBOX files with Advanced Search option. Moreover, one can also save the search results in PDF format via the tool.

  • Advance 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 to PDF: Sometimes, the need arises to save MBOX files into PDF format. For example, Forensic Examiner who deals with MBOX files to carve evidence has to present evidence in PDF format in court. So, one can easily export MBOX files into PDF via the software.

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: View Path, From, Cc, Bcc, Subject, etc.
  • Hex View: Shows MBOX emails in Hex Code.
  • Properties View: Display Message Class, Size, Date, etc.
  • Message Header View: Show message header of MBOX email with all the details.
  • MIME View: View MIME-Version, Content-Type, X-Priority, etc.
  • HTML View: Display MBOX emails in HTML format with all the tags.
  • RTF View: Show MBOX message in plain text format.
  • Attachments: Preview 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 Viewer tool to View and Read MBOX Files with Attachments

Read MBOX File with Attributes

View MBOX Emails along with Attributes

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

View MBOX File with Attachments

Preview Attachments of MBOX Emails

The MBOX Reader tool is capable to view and explore MBOX file emails along with the attachments associated with it. Moreover, one can easily preview the attachments of the selected email via the Attachments Preview Mode directly from the software’s interface.

Auto Load MBOX File

Auto Load MBOX File from Configured Profile

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

  • Select Single Identity: Choose this option to preview MBOX files within selected Profile Configured or Identity
  • 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 & view MBOX files via two options: File Mode & Folder Mode

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

Read Multiple MBOX Files

View Multiple MBOX Files

The MBOX Mail Viewer software permits the user to read and view various MBOX files in a batch. 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 file emails in two different modes. The software allows the user to view MBOX files in Horizontal view mode as well as Vertical view mode. One can select any view modes as per the convenience to read MBOX files.

No Email Client

No Email Client Dependency

SysTools MBOX Viewer is designed with advanced algorithms which makes hassle-free for the users to read MBOX emails without installation of any email client. The software is capable to view MBOX / MBX / MBS files of multiple email clients.

Easy Interface

Simple User Interface

The MBOX Message Viewer software is having a user-friendly interface due to which users can work with it without any problems. It is trouble-free for both technocrats and tyro users to operate and work with the tool to read and view MBOX files.

Scan MBOX File

Quick Scanning of MBOX Files

MBOX File Reader performs a quick scanning of each .mbox file & lists all of its emails with proper folder structure. This Thunderbird MBOX Viewer will preview scanning process with file size & creation date.

No MBOX Size Limitation

No Size Limitation

The SysTools MBOX File Viewer does not have any limitations on the file size of MBOX File. This Thunderbird Email Viewer allows you to read MBOX file of any size and view them successfully in MBOX Opener 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 will scan, load and ask to Index the entire MBOX file items. The user can allow Forensic MBOX File Viewer software to index the MBOX file items to later search for email within the MBOX file.

Add Multiple Files

Add Multiple MBOX Files

One can easily scan and preview multiple MBOX files via MBOX Opener software. The user can easily browse and view MBOX files individually i.e. one after other. The software will load each MBOX files and one can also get an idea about the MBOX files item count via the tool.

Advance MBOX Search

Advanced Search within MBOX File

The MBOX Email Archive Viewer software makes it easy for the user to search for a specific MBOX email by providing 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 keyword searched. One can also customize the search process by using search filters & operators. Read More

Export Emails

Export MBOX Emails to PDF Format

One can save selected MBOX emails or the entire MBOX file along with the attachment in PDF format via the MBOX Attachment Viewer Pro software. The software maintains the formatting of MBOX emails while exporting them into PDF format. After the conversion, the user can easily view MBOX emails with attachments in PDF.

Multiple Naming

Multiple File Naming Options

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

Make New Folder

Make New Folder to Save PDF

The MBOX Email Viewer software also allows the user to save the PDF file at any desirable location on the user’s system. Moreover, one also create a new folder using the MBOX File Viewer software directly from the software interface to save the resultant PDF file.

MBOX Viewer Software Specifications

Free Download MBOX Reader Software

Software Download

Size: 14.4 MB

Version: 4.0

MD5: fedacf9b6fb4e5fe19a50a59c388cefa

Software Limitations

Free version of SysTools MBOX Viewer Tool 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 2016, 2012 R2, 2008


If you are using Windows 11 (64-bit), Windows 10, 8, 7 (32 bit or 64 bit) & Windows Server 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 FREE Version PRO Version PRO+ Version
Add MBOX File
Preview Emails with Attachments
Free Installation on Multiple Computers
Search MBOX Files
Export to PDF
Export to PST, EML, MSG
Split Outlook Data File
Cost FREE $69 $129

Frequently Asked Questions

Listed Commonly Asked Questions and Answers

How to view Thunderbird’s MBOX File via SysTools MBOX Viewer tool?

Free MBOX Viewer

To view MBOX file associated with Thunderbird email client using MBOX Viewer, the user has to follow the steps given below:

  • Step 1: Download SysTools MBOX File Viewer Tool
  • Step 2: Browse MBOX File of Thunderbird, Google Takeout, Apple (Mac) Mail, Entourage
  • Step 3: Preview & View MBOX File in Batch With Attachments
  • Step 4: Auto-fetch MBOX file from Default Profile Configured of Thunderbird
  • Step 5: Forensic MBOX File Viewer allows switching View Mode: Horizontal or Vertical
  • Step 6: Supports to view & read .mbox files in Windows 10, 8, 7 & below

Yes, the user can read MBOX files using SysTools MBOX Viewer on Windows Operating system irrespective of the Window’s version.

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

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 via the MBOX Reader tool.
Yes, the software provides different preview modes to view MBOX file emails with all the attributes associated with it. 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 Opener 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, the SysTools MBOX Viewer allows the user to view and browse MBOX file emails along with the attachments. The user can view different types of attachments via the software such as text, document, image, etc.
Yes, the user can search for a specific MBOX email by using the Advanced Search Feature provided by the software. To avail Advanced Search feature, the user needs to upgrade to SysTools MBOX Viewer Pro version.

What Customers Are Saying

SysTools MBOX Viewer Software Verified Reviews
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