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MBOX Viewer

View the MBOX mailbox emails of 20 email clients without installing any email client.


Don’t just view the MBOX emails but also save a list of them.

  • Open & view emails of 20 MBOX email clients free
  • Apply filters and easily find the required emails
  • Add one or more MBOX file(s) for viewing the email data
  • Save details in HTML format & open in web browsers
  • Very interactive user interface for easily viewing emails
  • Use with all Windows versions including Windows 10

How to Open MBOX/MBX file with Kernel MBOX Viewer?

MBOX Viewer

MBOX Viewer

Client Testimonials

Our users are quite happy with the performance of the software and have given positive reviews.

Software Features

The MBOX Viewer software offers some advanced features that access the MBOX from various clients and lets you preview their contents.

Supports 20 MBOX email clients Supports 20 MBOX email clients

Free MBOX Viewer is capable of opening MBOX files created by 20 MBOX email client including AppleMail, PowerMail, Entourage, Eudora, Claws Mail, Sylpheed, PocoMail, Opera, Thunderbird, WebMail, Postbox, Netscape, Spicebird, Evolution, SeaMonkey, Mulberry, GyazMail, Gnu, Sparrow, and The Bat!

Saves in HTML Saves in HTML

Software has option to save displayed MBOX files in HTML format which can be accessed with all popular web browsers including Mozilla Firefox, Internet Explorer, and Google Chrome. It also offers advanced data filtering options which allow filtering of emails based upon different email properties like To, Subject, From, Time and Date.

Highly Compatible Highly Compatible

Kernel MBOX Viewer tool supports all latest versions of Windows operating system and offers a user-friendly interface. The tool supports Windows 10, 8.1, 8, 7, Vista, XP, 2000, 98, NT and 95. And, Windows Server 2019, 2016, 2012, 2008 R2, 2008, 2003 R2, and 2003.

Easy Viewing of Items Easy Viewing of Items

Downloading Kernel MBOX Viewer tool is absolutely free. Simply download it and start using. The software with interactive interface and self-explained features also facilitates easy and detailed previewing of email or other items present in file.

Load More Features
How it works?

Follow three simple steps to open and view MBOX files in the tool.



You can view the content of the MBOX files of all the major MBOX email clients and use the software on any Windows platform. See more.

    System Requirements
  • Minimum Memory Requirement: 64 MB
  • Disk Space Requirements: 50 MB of Free Space
    Supported Versions
  • Windows OS Platforms: Windows 10, 8.1, 8, 7, Vista, XP, 2000, 98, NT and 95
  • Windows Server: Windows Server 2019, 2016, 2012, 2008 R2, 2008, 2003 R2, and 2003
  • MBOX Email clients: All editions of MBOX email clients
    Product Guides
    & Licensing

Upgrade to

Home and Corporate License

To get maximum advantage of the software, upgrade to the licensed versions.

Software Features Freeware Home License Corporate License
Displays MBOX emails without any email client
Supports MBOX files of 20 email clients
Add single and multiple MBOX files in a single cycle
Saves the list of MBOX emails in HTML format
Converts MBOX files to PST  
Saves MBOX data to DBX, MSG, EML, PDF, TXT, HTML and more  
Saves MBOX emails to email servers – GroupWise, Exchange, & Domino    
Exports MBOX files to Office 365    
Generates a File Analysis Reports
Supports all versions of Windows OS
Kernel for Outlook PST Repair      
Repairs corrupt PST files    
Repairs large PST files and saves to multiple PST files    
Saves PST data in PST, DBX, MBOX, & many other formats    
Saves PST data to Exchange, Domino, & GroupWise    
Saves PST data to web mails (Gmail) & Office 365    
Cost Download now Download Now Upgrade $39Purchase Now Upgrade $199 Purchase Now

MBOX Viewer


Our users are impressed with the features of the software and have given high ratings.

Yes. Kernel MBOX Viewer supports almost all MBOX email applications including Gnu, AppleMail, Claws Mail, WebMail, Sylpheed, Spicebird, Opera, PowerMail, PocoMail, Thunderbird, Eudora, Entourage, Netscape, Postbox, Sparrow, GyazMail, SeaMonkey, Mulberry, Evolution, and The Bat!

Absolutely Yes. Kernel MBOX Viewer offers support for all versions of Windows OS including Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista, Windows XP, Windows 2000, Windows 98, Windows NT and Windows 95.

Absolutely not. Downloading Kernel MBOX Viewer tool is completely free of cost. There are no hidden charges at all. Simply download it and start using.

Yes. You can save MBOX emails in HTML file format which can be accessed with most popular web browsers like Google Chrome, Mozilla Firefox, Internet Explorer, etc.

Using Kernel MBOX Viewer tool is extremely easy. It has an interactive and user-friendly interface. You do not require any kind of assistance to operate it. All features are self-explanatory.

User Reviews

and Ratings
Kernel MBOX Viewer
(4.9 / 5) 560 Reviews

Reviews 560

  • Excellent
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1 2 3 > Last
29th September 2021 6:27pmK Coretezer
Great experience with this software. The user interface is immaculate and followable. I used it several times without any issues.
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9th August 2021 1:56pmSaparis
I am really impressed by how easy it was to use the application. I also like its user-friendly interface with a good GUI. Thanks!
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30th April 2021 6:53pmJack
It is 100% useful and effective software to open MBOX files. I have a pleasant experience with the tool and want to share it with all of you. Thanks!
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15th March 2021 6:50pmS Munaro
I downloaded this software to open and view emails of Thunderbird. Thank you so much for developing such fantastic and unbelievable software!
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1 2 3 > Last
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Blog Posts

Here are some must-read articles to know more about the MBOX to PST conversion methods.