Paperclip: Open .msg & .pst
Opens winmail.dat & .eml too
Free
Opens Outlook .msg, winmail.dat, .eml and .pst files on Mac, iPhone and iPad. Everything is free during launch, at least through October.
Viewing will always be free. Converting, batch export and Quick Look become a one-time purchase later. Download during launch and they stay free for you, for good. No subscription, now or ever.
Somebody sent you a winmail.dat, an Outlook .msg, or a whole .pst archive, and your Mac shrugged. Paperclip opens them. You get the message with its formatting, every attachment it can find, and the meeting invite hiding inside, on your Mac and on your phone.
PST ARCHIVES, WITHOUT THE IMPORT
Outlook imports a .pst into a mailbox, which needs an account and mixes the archive into your live mail. Paperclip opens the file where it sits. Browse the folders, sort the messages and search the whole archive, large files and old ANSI PSTs included. The archive stays where it is, separate from your mail.
ON THE MAC
Double-click a file or drop it into Paperclip. Drag attachments out. Add the invite to Calendar, recurring ones included. Print a message or export it as .eml or PDF. Point it at a folder and batch-convert it, up to 500 files at a time. After the first launch, select a .msg in Finder and press Space for a Quick Look preview.
ON IPHONE AND IPAD
Open from Files or the share sheet. Read the message with its formatting and attachments, browse and search the same PST archives, open nested messages in place, preview or share attachments, and add invites to Calendar.
NO SILENT FAILURES
A blank window is not an answer. Paperclip shows everything it found, and if part of a file is damaged it tells you what opened, what didn't, and what it recovered.
YOUR FILES STAY ON YOUR DEVICE
Paperclip parses them on your Mac, iPhone or iPad. No account, no upload, no analytics. Remote images and tracking pixels stay blocked unless you allow them for one message.
If a file doesn't open, write to support@offmetalabs.com. That is a bug, and it gets treated like one.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Fixed: an attachment preview could get stuck on screen with no way to close it. Previews now have a Done button at the top. Sorry about that one.
The developer, Michael Ivan Borysenko, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Michael Ivan Borysenko
- Size
- 15.4 MB
- Category
- Utilities
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
English and 6 more
- English, French, German, Italian, Japanese, Portuguese, Spanish
- Age Rating
4+
- 4+
- Copyright
- © 2026 Off Meta Labs