MSG viewer online

Safe & Secure Platform to read MSG Files

🔒 Your data stays safe on your device, and previews happen in your web browser

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MSG Viewer is a free online tool that lets you open and read Outlook MSG email files directly in your browser. Explore message details, sender and recipient info, subject lines, and attachments in seconds. Just drag and drop one or more MSG files — no Outlook, no installation required. Everything runs locally, ensuring your emails remain private and fully secure.

Multi-Platform Support

platforms

You can use our reader on all major operating systems with a stable internet connection.

Why choose our Free Online MSG Viewer?

Open Outlook .MSG in seconds

View .MSG emails right in your browser — no Outlook, no add-ons, no EXE. Just upload a file and read it instantly. No desktop viewer or "portable" utility required.

Works on any device

Windows, macOS, Linux, Chromebook — if it has a browser and internet, it can open your MSG. You can even check emails from your phone or tablet. No Outlook or Thunderbird needed.

Clean, faithful preview

Drag & drop a .MSG file — get a tidy preview in seconds. See the full message body with original formatting and headers directly in the browser. No imports, no waiting.

Friendly for everyone

A straightforward, step-by-step flow: upload → preview → read. You don’t need IT skills to open a single email or a batch of messages.

Attachments and details included

See sender, recipients, subject, dates, and more. Attachments aren’t ignored — preview the message and download attached files separately when you need them.

FAQ ▼

What is an MSG file?

An MSG file is an email message created by Microsoft Outlook or Exchange. It stores the complete content of an email Ч including sender, recipients, subject, date, body text, and attachments Ч in a structured format. Coolutils Online MSG Viewer lets you open and read these files directly in your browser without installing Outlook.

How do I open an MSG file online?

To open an MSG file online, go to the Coolutils Free MSG Viewer page, upload your file, and click "View." Within seconds, the email's full content Ч text, headers, and attachments Ч will be displayed right in your browser. No downloads, no setup, and no Outlook installation needed.

Can I view attachments from MSG files?

Yes, our online MSG Viewer displays the email content and lists all attachments separately. You can preview or download attached files such as images, PDFs, or documents with one click. This makes it easy to access everything contained in your MSG email without third-party software.

Is Coolutils MSG Viewer safe to use?

Absolutely. All uploads are processed securely over HTTPS, and every file is automatically deleted within 24 hours. Coolutils never shares, sells, or indexes your data. You can safely view private or business emails knowing your information stays confidential.

Convert from MSG

Using CoolUtils, it is possible to convert MSG files to a variety of other formats: