1. What does this tool do
This free online mail reader opens and displays .eml (MIME) and .msg (Outlook) email files directly in your browser. View From, To, Cc, Bcc, Subject, Date, the body (HTML or plain text), and attachments with download — no upload, no account. Your email files never leave your device. Ideal for reading saved emails without an email client, checking exports, or downloading attachments.
2. How to use it
Quick start: Click Open File or drag-and-drop an .eml or .msg file onto the drop zone. The email headers, body, and attachments appear below. Use Download next to each attachment to save it.
- Open a file — Click Open File or drag-and-drop an .eml or .msg file onto the drop zone.
- Read headers — From, To, Cc, Bcc, Subject, and Date are shown in the Headers card.
- Read body — HTML content is rendered (sanitized for safety); plain text is shown in a scrollable area.
- Download attachments — Each attachment is listed with a Download button; click to save the file.
3. How it works
Email files are read with the File API (client-side only). .eml (MIME) files are parsed with a browser-compatible MIME parser; .msg (Outlook) files are parsed with a client-side .msg reader. Headers, body (text and HTML), and attachments are extracted. All processing is in your browser; no server receives your files. HTML body is sanitized before display to reduce XSS risk.
4. Use cases & examples
- Saved emails — Open .eml exports from Gmail (“Download message”), Thunderbird, or Apple Mail.
- Attachments — View the list and download attachments without opening an email client.
- Privacy — Sensitive emails stay local; nothing is uploaded.
- Portable — Read email files on any device with a modern browser.
Example
- Open message.eml → Headers card (From, To, Subject, Date), body (HTML or text), and attachment list with Download buttons.
5. Limitations & known constraints
- Formats — .eml and Outlook .msg are both supported.
- One file at a time — Open a single email per view; use “Try Another File” to switch.
- Read-only — This is a viewer; it does not edit, reply, or send email. Attachments are download-only.