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Convert MSG files online instantly, no sign-up required. You can convert your MSG documents on any platform—Windows, Linux, or macOS. Upload your file, choose the output format, and press convert. When the process is done, your MHTML file will be ready for download.
The MSG file's size and structure affect conversion time, though most files are processed in seconds. Advanced features allow you to convert password-protected documents and receive conversion results via email.
No matter where you are, convert your MSG documents seamlessly on any device, including smartphones. Available online anytime, this conversion app is completely free for basic scenarios.
Check our videoThe MSG is a file format used by Microsoft Outlook to store email messages, including attachments, headers, and metadata. It is primarily supported by Microsoft Outlook and other Microsoft Office applications, but can also be accessed using third-party tools like LibreOffice, Thunderbird, or specialized MSG viewers. The format stores data in a structured binary format, preserving email properties such as sender, recipient, subject, and timestamps, while also supporting advanced features like embedded objects, RTF formatting, and custom properties.
MHTML (MIME HTML) is a web page archive format that combines HTML, images, scripts, and other resources into a single file for easy storage and sharing. It is supported by web browsers like Microsoft Edge and Internet Explorer, as well as tools such as email clients and web development software. The format uses MIME encoding to embed external resources directly into the file, enabling self-contained web pages with advanced features like CSS, JavaScript, and multimedia elements.
You can also convert MSG into many other file formats. Please see the complete list below.