No Microsoft Outlook? No problem. MailSnap opens .msg files in your browser — free, private, no install. Works on Mac, Windows, Linux, and mobile.
Drop file here
or click to browse
MSG files are a proprietary Microsoft format. Without Outlook, nothing in Windows, macOS, or Linux can open them natively. Even Microsoft's own free apps — Outlook.com, the Outlook mobile app — cannot open .msg files.
MailSnap parses the MSG binary format directly in your browser using JavaScript, so you can read any .msg file without installing anything.
How can I open a MSG file if I don't have Outlook?
Drop it onto MailSnap — it opens in your browser instantly. No Outlook, no Microsoft account, nothing to install.
Can I open MSG files on Windows without Outlook?
Yes. MailSnap works in Chrome, Edge, or Firefox on Windows. No Office subscription required.
Can't Outlook.com or the Outlook app open .msg files?
No. Despite the name, Outlook.com and the Outlook mobile app are different products and do not support .msg files. Only the full Microsoft Outlook desktop application can open them natively.
Is MailSnap free?
Completely free — no file limit, no account, no credit card.