FormatPeek

Free EML Viewer Online

Open a saved EML email directly in your browser. View the message, headers and attachments without importing it into an email account.

Private by designYour file is opened locally in this browser. It is never uploaded to our server and disappears when you close this page.
Example resultA parsed example.eml using synthetic test data
example.emlOpened locally · Not uploaded

Q4 product launch — updated timeline and next steps

From
Emily Carter <emily.carter@northstarlabs.example>
To
Daniel Kim <daniel.kim@northstarlabs.example>
Cc
Sophia Martinez <sophia.martinez@northstarlabs.example>
Date
Sep 9, 2026, 2:32 PM

Attachments (1)

View message headers
From: Emily Carter <emily.carter@northstarlabs.example>
To: Daniel Kim <daniel.kim@northstarlabs.example>
Date: Wed, 9 Sep 2026 14:32:00 -0400
Subject: Q4 product launch — updated timeline and next steps

What is an EML file?

An EML file stores one email message using the standard internet message format. Email applications such as Outlook, Apple Mail, Thunderbird and Windows Mail can create or open EML files.

Open EML files privately

Your EML file is parsed locally inside this browser. It is not uploaded to FormatPeek, added to an inbox or retained after you close the page.

What this EML viewer displays

Frequently asked questions

Do I need Outlook to open an EML file?

No. EML is supported by several email programs, and FormatPeek can read it directly in a modern browser.

Does viewing the file send or import the email?

No. The message is only decoded for display. It is not sent, forwarded or connected to an email account.

Are remote tracking images loaded?

No. Remote images are removed from the preview so opening a saved message does not automatically contact an external image server.