UnboxMSG: MSG, EML & MBOX
Open email files privately
Only for Mac
Free · In‑App Purchases
Mac
Open MSG, EML and MBOX email files privately. Browse mailbox archives, view attachments and inspect original email content — all offline.
Open email files without uploading them anywhere.
UnboxMSG is a private, offline email file viewer for iPhone, iPad and Mac. Open MSG and EML messages, browse MBOX mailbox archives, inspect attachments, and view the original email content directly on your device.
SUPPORTED FORMATS
• MSG — open Outlook message files
• EML — view standard email message files
• MBOX — browse complete mailbox archives
• ZIP — import supported email files from ZIP archives
PRIVATE BY DESIGN
Your email files stay on your device.
• No email account required
• No cloud upload
• No analytics or advertising
• No tracking
• Remote email images are blocked by default
• Load remote images only when you choose
READ EMAIL YOUR WAY
Switch between two viewing modes:
• Reader — a clean, easy-to-read presentation
• Original — view the original HTML email layout
MBOX ARCHIVES
Open an MBOX file as a mailbox archive and browse the messages inside without extracting hundreds of individual files.
Search messages, open individual emails, inspect attachments, and export messages when needed.
ATTACHMENTS
View attachments contained in supported email files and save or share them using standard system tools.
ORGANIZE YOUR EMAIL FILES
• Keep imported messages in your library
• Mark important messages as favorites
• Browse recent messages
• Search your email library
• Work with mailbox archives
• Batch actions for multiple messages
EXPORT TOOLS
Pro features include:
• Export email messages as PDF
• Export individual messages as EML
• Extract attachments
• Batch export
• Import folders on Mac
• Full library search
BUILT FOR EMAIL FILES
UnboxMSG is not an email client. It does not connect to Gmail, Outlook, Exchange or other mail accounts.
It is designed for opening and working with email files you already have — privately and locally.
Perfect for archived correspondence, exported mailboxes, saved business emails, legal records, support messages and old email backups.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Anton Kryuchykau, 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 Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Anton Kryuchykau
- Size
- 8.7 MB
- Category
- Business
- Compatibility
Requires macOS 14.0 or later.
- Mac
Requires macOS 14.0 or later.
- Mac
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- UnboxMSG Pro Yearly $29.99
- UnboxMSG Pro Lifetime $49.99
- Copyright
- © 2026 UnboxMSG