Cost / License
- Free
- Open Source (Apache-2.0)
Platforms
- Online
- Self-Hosted

MailViewer is described as 'Desktop application built with GTK4/libadwaita and Rust that allows users to read and decode .eml files (email files). It provides a graphical interface for easy navigation and rendering of email content, including attachments, HTML, and plain text' and is an app. There are more than 10 alternatives to MailViewer for Windows, Mac, Linux, Web-based and Self-Hosted. The best MailViewer alternative is MSG Reader, which is both free and Open Source. Other great apps like MailViewer are Windows MBox Viewer, MsgViewer, MSG VIewer for Outlook and SysTools MSG Viewer Pro.

This small utility enables to inspect Berkley mbox format mailboxes and enables to access attachments and view HTML emails.

MsgViewer is email-viewer utility for .msg e-mail messages, implemented in pure Java. MsgViewer works on Windows/Linux/Mac Platforms. Also provides a java api to read mail messges (msg files) programmatically.

Looking to open those frustrating Microsoft Outlook MSG, OFT, and Winmail.dat files on your Mac? We've got you covered.




SysTools MSG Viewer Pro software to search and print MSG files to PDF format without data loss. Capable to search Emails, Calendars, Attachments using Different Criteria. Easily batch print Outlook Message Files with Attachments.



Freeware EML Reader software to open/read EML & EMLX emails with attachments. Use absolutely free EML reader and safely open EML emails without having any problem.

View MSG and EML files outside any email client. Free CoolUtils Mail Viewer will also generate a fact file related to your emails.


Freeware MBOX Viewer is an outstanding tool provided by Data Recovery Solutions to view, or read MBOX file and its attachments easily. Using this MBOX File Viewer tool, you can swiftly view or open healthy as well as corrupted MBOX files.
EML MAI Reader PRO - Quick & Useful Email Client! The software offers you the most productive features for opening EML file extensions. It accurately displays messages, saves the history of recently viewed, sorts files you open, and more.



