Open EML files online

What is an EML file?

An .eml file is one email saved in the RFC 822 format. The headers, body and attachments sit together in a single MIME-encoded text file. Outlook, Apple Mail, Thunderbird and most other mail apps can export emails this way.

How to open an EML file without Outlook

You may get an .eml file and have no mail app that opens it, or want to keep a message as a readable document. Drop the file above. postal-mime parses it in your browser and shows the From, To, Cc, Subject and Date headers, the message body and a list of attachments with their sizes. Download any attachment, or export the whole message as one HTML file you can open, print or archive.

How the viewer keeps you safe

The email body is shown in a sandboxed frame with scripts turned off and no access to your session, so scripts inside the message can't run. The file is parsed in your browser with the postal-mime library.

Before you start

Input: EML. Output: HTML. The settings appear before anything runs, so you can check them first. Your original file is never changed.

These formats often follow rules set by one app or device. Test the result where it will be used, and keep the source in case you need to export it again.

Keep the original until you have opened and checked the result. The work happens in this browser tab, so the size you can handle depends on your device's memory, your browser and the file itself.

How to open EML files online

1. Drop an .eml file into the zone above.
2. Read the From, To, Subject and Date headers and the message body.
3. Download any attachments one by one.
4. Export the whole message as a single HTML file.