Windows MBox Viewer download

Free Windows Mbox Viewer.
Gain access to mbox archives, single eml or single Outlook messages.
View attachments and export single mails in eml format.
Access large mbox files such as Google Takeout or Mozilla Thunderbird Archives.

Development of mbox viewer continues now at github: https://github.com/eneam/mboxviewer

**NOTE**: Windows Defender may sometimes report incorrectly that mbox-viewer contains malware. Please report the case to the development. Development will ask Windows Security to update Windows Defender rules to resolve the issue. Last time the incorrect detection was corrected by Microsoft Security within few hours. User will need to run Windows Update to install the latest updated detection rules.

Features

open big mbox files > 4Gb
read google mail archives
quick access to attachments
export of single or all mails to separate Eml files
search by date, subject, sender, mail text and attachment names
sort date, from, to, subject and size columns
grouping of related mails by conversations
print all, single or selected mails to Text, PDF, Html or CSV files
handling of inline/embedded images
find text with highlight of occurrences
quick preview of picture attachments
access to all features without any restrictions
export attachments of all mails
view raw mail header fields
create archive files from subset of mails
merge multiple archive files
customize background color of panes
persist window position and layout
forward mails directly from MBox Viewer
support for Gmail Labels
support for Thunderbird exports
mbox file discovery based on content and not based on extensions
support for file and Windows Registry configuration storage
support for multiple languages
option to configure font size of GUI objects
support for Outlook MSG files

Project Samples

Project Activity

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License

Affero GNU Public License

Follow Windows MBox Viewer

Windows MBox Viewer Web Site

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User Ratings

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User Reviews

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All

darkswordreams Posted 2026-01-20

essential if you want to skim archives of mailing lists.
abdelbassetelga Posted 2025-11-07

The only solution for extracting email addresses from .mbox format in bulk.
johnywhy Posted 2024-01-14

fantastic tool! awesome, advanced features!
gianf Edited 2022-12-14

Excellent. Very fast ! 2 GB .mbox file.
jwzedd Posted 2022-09-11

Solved my problem very quickly. Thanks go to the fellow who posted the YouTube video.

Additional Project Details

Intended Audience

Developers, End Users/Desktop

Programming Language

C++

Related Categories

C++ Email Clients

Registered

2005-11-30

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