Free Windows Mbox Viewer.
Gain access to mbox archives or single eml 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
Project Samples
Categories
Email ClientsLicense
Affero GNU Public LicenseFollow Windows MBox Viewer
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User Reviews
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abdelbassetelga Posted 2025年11月07日The only solution for extracting email addresses from .mbox format in bulk.
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johnywhy Posted 2024年01月14日fantastic tool! awesome, advanced features!
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gianf Edited 2022年12月14日Excellent. Very fast ! 2 GB .mbox file.
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jwzedd Posted 2022年09月11日Solved my problem very quickly. Thanks go to the fellow who posted the YouTube video.
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researcher-law Edited 2021年08月22日Really glad to find and try this alpha-version. It takes some getting used to, but so far its a great simple tool for searching and reviewing .mbox files, particularly Gmail takeouts. Some suggestions/wants for future consideration: - extract/display unique ID in csv output; - or if print individual emails to html/pdf, enable the unique filename of the pdf or html to part of the csv output, possibly with their filepath (so they can be located or linked to); - similar for attachments to emails - output their unique ID or hash, and path in csv output; - enable email attachment metadata and text to also be part of csv output. I know that is probably asking alot. Thanks for the effort so far. Not a coder but happy to help/test. I sent a small donation by paypal.