How to Open EML and MSG Email Files Without Microsoft Outlook
Saved emails as .eml or .msg files? This guide shows how to open them in your browser without an Outlook license — full message body, headers, and attachments.
Quick Answer: Open EML files at ViewAnyFile.app and MSG files at ViewAnyFile.app. No Outlook needed, nothing uploaded.
EML and MSG are saved email formats. EML is used by Thunderbird, Apple Mail, and Gmail exports. MSG is Microsoft Outlook's proprietary format. Both require the right software to open — unless you use a browser-based viewer.
Open EML Files Online
ViewAnyFile.app parses EML files (RFC 5322 standard) and renders full headers, HTML body, plain text fallback, and attachments list.
Open MSG Files Online
MSG files use Microsoft's proprietary binary format. ViewAnyFile.app uses a JavaScript MSG parser to decode the binary data — no Outlook licence needed.
Common Use Cases
- Legal e-discovery: reviewing email evidence on a non-Outlook machine
- IT admins opening exported mailbox backups
- Compliance teams reviewing exported business communications
- Opening email attachments received as .eml without installing Outlook
Related Tools
- EML Viewer — open emails without Outlook
- MSG Viewer — open Outlook MSG files in browser
- MBOX Viewer — open Gmail and Thunderbird email archives