Mailunwrap

For .msg, winmail.dat and .eml files

Open the email file someone sent you.

Outlook .msg files, winmail.dat attachments and .eml emails, opened right here on your Mac, iPhone, Android or Chromebook. Read the message and save what’s attached.

Drop the email file here

.msg · winmail.dat · .eml · .mbox · .pst

Opened in your browser. Nothing is uploaded.

Sample email Open your own file above. This one is made up.

Your kitchen proposal and floor plan

What it opens

The awkward email files that arrive from Outlook users, plus the standard kinds. When a file can’t be opened, you’re told why in plain words, not shown a blank page.

  • Outlook .msgEmails saved or forwarded from Outlook, old and new, in any language. Emails attached inside them open too.
  • winmail.datUnpacked into the real attachments, with the message text from inside when it’s there.
  • .eml and .emlxStandard email files from Gmail, Thunderbird, Apple Mail and most systems.
  • .mbox mailboxesGoogle Takeout, Apple Mail and Thunderbird exports. The first 10 messages are free.
  • Small .pst filesOutlook data files up to 150 MB, folder by folder, and many .ost caches. The first 10 messages are free.
  • Other Outlook itemsCalendar items, contacts, tasks and notes saved from Outlook open with the text they hold.
  • Signed emailS/MIME-signed messages open normally. The signature itself isn’t checked.
  • Encrypted emailS/MIME- or PGP-encrypted messages can only be opened by their recipient. The page says so.
  • “Do not forward”Rights-protected Outlook email stays locked to its recipient, by design.
  • Big .pst and .olmData files over 150 MB and Outlook for Mac archives (.olm) aren’t supported.

Made for emails you’d rather not hand to a stranger

Most “online viewers” upload your file to their server. Mailunwrap reads it in your browser, and treats every email as if it might be hostile.

  1. 1

    Nothing is uploaded

    Your browser reads the file from your device and the page unpacks it there. It isn’t sent to us or anyone else, and nothing is kept when you close the tab.

  2. 2

    Tracking pictures held back

    Pictures loaded from the internet can tell a sender you opened their email. They stay off until you choose to show them.

  3. 3

    Nothing in the email runs

    The message is shown in a sealed frame where scripts can’t run and forms can’t send. Links open in a new tab.

  4. 4

    Attachments stay files

    Attachments are saved to your device, never opened inside the page, and risky kinds such as programs and macro documents are pointed out.

One-time unlock

Batch, PDF and whole mailboxes

Opening emails and saving their attachments is free, one file at a time, for as long as you like. For people who deal with a lot of email files, a single payment adds:

  • Batch to PDF. Choose many .msg, winmail.dat, .eml, .mbox or .pst files and get one ZIP: a PDF of every email, all the attachments in folders, and a summary spreadsheet. A file that can’t be read is listed with the reason; the rest still go in.
  • Save as PDF in one click, without the print dialog.
  • Whole mailboxes. Browse every message in an .mbox or a small .pst and search by subject, sender, recipient or folder (the first 10 are free).
  • Save all attachments from an email as one ZIP.

No account and no subscription. Files still never leave your device.

£6once

Coming soon

It isn’t on sale yet, so there’s nothing to pay today. Opening files and saving attachments works now, free.

Guides

Straight answers for when an email file won’t open.