MSG Viewer
Open Outlook .msg emails on any computer, without Outlook, and save their attachments or a PDF copy.
- Attachments
- Headers & SPF/DKIM
- Tracking blocked
- No upload
Drop an Outlook .msg file here. Both .eml and Outlook .msg work.
What is an MSG file?
An .msg file is an email saved by Microsoft Outlook. Unlike .eml it is a binary Compound File (the same container family as old Office files) holding Outlook’s MAPI properties: subject, sender, recipients, the body in plain text, HTML or RTF, attachments and the original Internet headers. Only Outlook opens it natively, which is a problem on Macs, Linux and phones. This viewer reads the format in your browser and shows the message, recipients, attachments and headers.
How to open an MSG file
- Choose Open File and pick the .msg file, or drag it onto the page.
- Read the message; switch to plain text, or load remote images if you trust the sender.
- Download attachments individually or all together as a ZIP.
- Check the Headers tab for the delivery path and SPF, DKIM and DMARC, or save the email as PDF.
Before you trust an email
- Check the Headers tab: SPF, DKIM and DMARC should pass for the sender’s domain.
- A Reply-To on a different domain from the sender is a classic phishing sign.
- Keep remote images blocked for unknown senders: they reveal that and when you opened the email.
- Scan unexpected attachments before opening them, especially documents with macros.
Why use this MSG viewer
- Everything in the messageSender, recipients, CC, date, HTML or plain-text body, inline images and every attachment, plus full headers with SPF, DKIM and DMARC results.
- Tracking pixels blockedRemote images, fonts and styles are blocked until you choose to load them, so opening an email here does not tell the sender you read it.
- Safe to openScripts, forms and event handlers are stripped and the message is shown in a locked-down frame. Attachments are listed but never opened automatically.
- Private by designThe email is opened in your browser and never uploaded, which matters for invoices, contracts, HR and legal correspondence.
Common uses
- Mac and Linux. Open .msg attachments without Outlook.
- Forwarded as attachment. Read emails colleagues attached from Outlook.
- Archives. Review .msg exports from case or document management systems.
- Attachments. Extract files from Outlook messages.
Related tools: open Word files with the DOCX viewer, combine saved emails with merge PDF, or inspect certificates with the SSL certificate decoder.
Example: a report email
The sample is an email with an inline logo, a tracking pixel (blocked), a CSV attachment and headers showing SPF, DKIM and DMARC all passing over two delivery hops.
What to expect from the result
Encrypted S/MIME and PGP messages are shown in encrypted form. Winmail.dat (TNEF) attachments are listed but not expanded.
MSG Viewer questions
How do I open an MSG file without Outlook?
Choose Open File here and pick the .msg. It opens in your browser on Windows, macOS, Linux, iPad or Android.
Can I open MSG files on a Mac?
Yes. Apple Mail cannot read .msg, but this viewer can, in Safari, Chrome or Firefox.
Why is the formatting simpler than in Outlook?
Some .msg files store the body only as RTF. In that case the plain-text version is shown; messages with an HTML body appear with full formatting.
Can I convert EML to PDF?
Yes. Click Download PDF for an instant PDF with the header block, or Print / Save as PDF for a text-searchable version.
Is my email uploaded?
No. The file is parsed in your browser and nothing is sent to a server. Remote images inside the email are also blocked unless you allow them.