MSG on macOS

Open an Outlook MSG file on your Mac.

macOS does not natively preview every MSG file. This tool opens it inside your browser and preserves your privacy by processing locally.

Workspace status

Ready · Local browser memory

Open an email file

Open it once. Reader, safety, headers, route, redaction, and export reuse the same in-memory source.

.EML
.MSG
.EMLX
winmail.dat
Processed locally. Files and filenames stay on this device.
Workflow

From source file to finished result

Runs locally
  1. Step 1

    Drag the MSG from Finder

  2. Step 2

    Preview the message in your browser

  3. Step 3

    Save attachments, EML, or a PDF

What this workspace preserves

Nothing is installed

The same workflow works in Safari and Chromium browsers

Remote tracking images remain blocked

Questions about this workflow

Can Apple Mail open MSG?

Apple Mail primarily uses internet message formats such as EML and does not reliably open Outlook MSG containers.

Does this work offline?

Once the page and parser code are loaded, file processing itself happens locally.