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.

How to Use Online MSG Viewer

📤 Upload Your MSG File Click “Upload” or drag-and-drop your .msg file. Supports Microsoft Outlook email messages with all attachments, embedded images, and formatting.

📨 View Email Content See sender, recipients, subject, date, email body with original HTML formatting, and all metadata — exactly as the message appeared in Outlook.

📎 Access Attachments View and download all file attachments. Preview documents, images, PDFs, and other files directly in the viewer without extracting them separately.

💾 Export or Save Download as PDF for archiving, save as EML for other email clients, or extract specific attachments. All processing happens securely in your browser.

Multi-Platform Support

platforms

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

Cloud Based

There is no need to install any software to view MSG files with CoolUtils. Simply access the internet, and you can easily preview your file online with our service.

Secure

Our hardware operates in top-tier, highly secure data centers equipped with advanced electronic surveillance and multi-factor access control systems.

Ease of Use

Viewing MSG files has never been so simple. Our intuitive interface lets you preview files in just a few clicks.

Privacy

We understand the importance of privacy, which is why we've developed a comprehensive privacy policy detailing how we handle your files and personal information. You can read the policy here.

Free Desktop Viewers

View files offline — no internet required. 100% free, no trial limits.

🗎 PDF Viewer Open & read PDF files Free Download 📄 XML Viewer Browse XML structure Free Download 📩 Mbox Viewer Read Mbox mail archives Free Download 🖨 PCL Viewer View PCL print files Free Download 📧 Mail Viewer Open EML & MSG emails Free Download

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.

Need More Than Viewing?

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Total Doc Converter

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Total Mail Converter

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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.

What is the Online MSG Viewer?

The Online MSG Viewer is a free web tool that lets you open and read MSG files directly in your browser without installing Microsoft Outlook.

Do I need Microsoft Outlook to open MSG files?

No, you don't need Outlook, Office 365, or any desktop email client. The online viewer opens MSG files directly in your browser on any device - Windows, Mac, Linux, Chromebooks, tablets, or smartphones. Perfect for users without Outlook licenses.

Can I view email attachments in MSG files?

Yes, the viewer displays all attachments included in the MSG file. You can preview common file types (PDFs, images, documents) and download any attachment separately. View multiple attachments without extracting the entire MSG file.

Why can't I open MSG files in Gmail or other email clients?

MSG is a proprietary Microsoft format that other email clients don't natively support. Gmail, Yahoo Mail, Apple Mail, and Thunderbird use standard formats like EML or MBOX. The online viewer bridges this gap, letting you read MSG files regardless of your email platform.

Can I convert MSG to PDF or other formats?

Yes, most online MSG viewers offer conversion to PDF (for archiving and sharing), EML (for importing to other email clients), or HTML (for web viewing). Export Outlook messages to universal formats that anyone can open without specialized software.

Convert from MSG

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