MBOX File Viewer

Free MBOX Viewer Tool to View & Open MBOX File with Attachments

Online MBOX Viewer is the best choice to open, view, analyze, and read MBOX files without any dependency on any email client. This software is exclusively designed to open healthy as well as corrupt MBOX files. MBOX is the widely used file format which is supported by numerous email clients like Mozilla Thunderbird, Entourage, Eudora, Postbox, Apple Mail, PocoMail, Spicebird, The Bat, SeaMonkey, Evolution, Claws Mail, Mulberry, Netscape, Mutt, Opera Mail, etc. The chances of MBOX file corruption is more. So, this software is very useful and freely available online to view all the mailbox items like Inbox, Outbox, Drafts, etc. with their attachments. Download this freeware to open MBOX file anytime from anywhere.

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(Average Rating 4.1 Based on 8 rating)

informationWindows Compatible

  • Successfully Open Corrupt, Inaccessible and Damaged MBOX files
  • Supports 20+ email clients like Thunderbird, Entourage, Eudora, Postbox, Apple Mail, etc.
  • No need for supporting email clients to view MBOX file online
  • Preview option to check the content of MBOX selected file.
  • Open entire mailbox items like Inbox, Outbox, Drafts, etc. with their attachments
  • Completely free to download and open MBOX files
  • Allow users to open and read multiple MBOX files at a time.
  • Support MBOX/MBS/MBX Files of Various Email Clients.
  • Maintains the Hierarchy of the folders containing MBOX files
  • Support Add files, Search, Remove and Remove all Files feature
  • Compatible with Windows 10, 8, 7 & below versions
MBOX Converter Tool
MBOX Converter

Free Tool to Convert Multiple MBOX Files to PST, MSG, RTF & EML.

Click Here

MBOX files is the email saving file formats used by many email clients like Mozilla Thunderbird, Entourage, Eudora, Postbox, Apple Mail, PocoMail, Spicebird, The Bat, SeaMonkey, Evolution, Claws Mail, Mulberry, Netscape, Mutt, Opera Mail, etc. MBOX files sometimes become corrupted due to which users are unable to read the file. At this time, this SysInfo MBOX File Viewer Software is helpful as it allows users to easily view MBOX file content. Users can even choose any file for which he/she wants to read the file data. If any user wants to check the file data, then, he/she can select that file and check its data in the preview panel at the right side of MBOX Reader software. The tool consists of several options to add, search, remove, and remove all file options are available.

 Video   Screenshot   Specification
MBOX Viewer
How it works?
SysInfoTools Online MBOX Viewer can be Useful in the Following Scenarios

When users need to View Damaged MBOX Files Data

As we all know that the MBOX files become corrupted due to many reasons. If some users want to look into the file so that they can view its data, then they can try Sysinfo free .mbox viewer online.

When users need to Check Preview of MBOX File

If any user wants to checkout preview of many MBOX files, then this MBOX Reader developed by SysInfoTools comes into use. It will allow the user to easily check preview of any selected MBOX file.

When users need to Analyze MBOX File without any Email Client

If a user wishes to analyse, check the MBOX file data but unable to do so, then he/she can opt for MBOX Reader to read and analyze the data.

When users need to open Multiple MBOX files at a Time

MBOX files issues can be faced by any users. If a user wants to access multiple MBOX files at a time to view or read them, then this MBOX free viewer is useful in such scenarios.

Important Note: Remember this Online MBOX File Viewer is available for free but, if you want to save the MBOX file items, you cannot do this with this tool. For saving purposes, you have to go for Pro version i.e. MBOX Converter software and avail all the features of it.

Prominent Features of SysInfo Windows MBOX Viewer Software

Open MBOX Data Independently

Open MBOX Data Independently

SysInfo Online MBOX Viewer is an intelligently designed free file viewer that can easily open and view .mbox file formats. This Software does not need any supported email client to open and view MBOX file content like Inbox, Sent Items, Drafts, etc.

Support 20+ Email Clients

Support 20+ Email Clients

With the help of this portable MBOX File Viewer, you can open and view MBOX file online which are created by different email clients like Thunderbird, Apple Mail, Netscape PocoMail, Spicebird, The Bat, SeaMonkey, etc.

Read Corrupted MBOX Files

Read Corrupted MBOX Files

SysInfo MBOX Reader is highly capable that allows you to read and view healthy as well as corrupted MBOX files. Hence if your MBOX files are corrupted, damaged, or inaccessible, you can read them easily with the help of this free file Viewer.

Open Multiple MBOX Files

Open Multiple MBOX Files

Using Free MBOX Viewer, users can access multiple MBOX files at the same time. You just need to click on the "Add Files" option to load multiple MBOX files from your system and if you are unable to find the location of MBOX, you can use its "Search" feature for that.

Thorough Scanning

Thorough Scanning

Three types of scanning mode are available in this free MBOX file reader software: Standard mode-minor corruption, Advanced mode-moderate corruption, and Deep mode-severe corruption to counter any level of corruption so that you can save your valuable time.

Upgrade to PRO Version

Upgrade to PRO Version

This feature is highly useful for those users who want to save their recovered MBOX files on their system. Using the PRO version, you can convert all your MBOX files into Outlook PST, MSG, RTF & EML file formats.

Interactive User Interface

Interactive User Interface

Online Free MBOX viewer software is embedded with easy to use and interactive user interface which makes it deliver uncomplicated performance for technical as well as new users. This software has an impressive and easy to handle GUI which makes every user happy.

Support Windows OS

Support Windows OS

This FREE MBOX Reader smoothly works on all editions of Windows like 10/8.1/8/7,2008/2012 (32 & 64-bit) XP, Vista, without any interruption. Users don’t have to be bothered about which Windows version she/he has to use for the software to run.


All the specifications of the Sysinfo MBOX Viewer Software are given here. Users must check out them before purchasing the licensed version.

Requirements & Supported Versions

License Type

Comparison of Trial & Full Version

MBOX Reader Tool Free & Full Version comparison are given here for users:-

Product Features Free Version Full Version
Search MBOX Files
Open MBOX files without email client
Preview MBOX File Data
Supports Corrupted MBOX Files
Compatible with All Windows Platforms
Open Multiple MBOX Files at a time
Save and Convert MBOX to other formats
24*7 Tech Support & Secure 100%
Price Free $39
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Frequently Asked Questions

Having any doubts while running the portable MBOX viewer software, check out this FAQ sections, and get your answer immediately.

  • Download free MBOX file viewer.
  • Click on Open and then Add files.
  • Select MBOX files
  • Start the Scanning Process.
  • Check the preview of MBOX file content
  • Take Exit from software

The USP of the SysInfo Windows MBOX Viewer is it supports normal as well as corrupted MBOX file.

Yes, it is very easy to view and open normal as well as highly corrupted MBOX files.

To fulfil this requirement, SysInfoTools offers another remarkable paid MBOX to PST Converter tool which swiftly performs the desired action.

Yes, it smoothly functions on all versions of Windows and delivers you impeccable performance.

No, you just need to download and install it. It is a complete freeware tool to open MBOX file online.

Functionalities of the software and amazing user interface easily enable even the novice user to open and view MBOX file in any email client software which supports MBOX files, even in your Outlook application.

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