Free methods to open MSG files on Mac without Outlook

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Updated on
June 3, 2026

5 minutes Read

User Query:

”I received several MSG files from a colleague, but I use a Mac and don’t have Outlook installed. Is there a free way to open MSG files on Mac?”

— Asked by ‘‘Ethan Walker’’

Introduction: MSG files are individual email message files created by Microsoft Outlook. They contain email content, attachments, sender information, recipients, timestamps, and other message properties. While MSG files open easily in Outlook on Windows. But Mac users often face challenges as macOS does not support the MSG format. Fortunately, there are several free methods available to view MSG files without installing Outlook. This guide explains the best ways to view MSG file on Mac, along with the MacSonik MSG Viewer Tool.

Why Do Mac Users Struggle to Open Windows Outlook Files?

There are several reasons due to which users decided to open MSG files on Mac:

  • Read Outlook emails received from colleagues.
  • Accessing archived business communications.
  • To view email attachments.
  • Recover important mailbox data.
  • Share email records for legal purposes.
  • Review exported Outlook messages.
  • Also, to access emails without Outlook installation.

Step-by-Step: Opening Outlook MSG Files on macOS Manually

There are several paths to Open MSG on Mac manually. 

Free Method 1: Open MSG Files Using Apple Mail After Conversion

Since Apple Mail does not directly support MSG files, users can first convert MSG files into EML format.

  1. Firstly, convert the MSG file to EML format.
  2. Save the converted file on your Mac.
  3. Right-click the EML file.
  4. Choose Open With Apple Mail.
  5. Read the email and access attachments.

Free Method 2: Use Online MSG Viewers

Several online tools allow users to upload and preview MSG files.

  1. Open an online MSG viewer website.
  2. Upload the MSG file.
  3. Allow the file to load.
  4. Read the email contents.

Free Method 3: Rename and Extract Attachments

In some situations, users only need attachments from an MSG file.

  1. Use a file extraction utility.
  2. Open the MSG file through the utility.
  3. Extract available attachments.
  4. Save them locally.

Free Method 4: Use Thunderbird With Conversion

Mozilla Thunderbird can help access email data after converting MSG files into a compatible format.

  1. Install Thunderbird.
  2. Convert MSG to EML.
  3. Import the EML file into Thunderbird.
  4. Open and view email content.

Common Drawbacks to Open MSG File on Mac Manually

  • There are multiple manual steps.
  • Attachment handling issues.
  • Formatting may change.
  • The metadata can be lost.
  • Not suitable for bulk MSG files.
  • Privacy risks with online tools.
  • Moreover, it is time-consuming for large collections.

The Best Solution for Opening Windows MSG Files on Mac

The MacSonik MSG Viewer Tool provides a more efficient solution to read MSG files on Mac. The software allows direct access to MSG files without Outlook and preserves original email structure, attachments, and metadata. In addition, it allows users to convert MSG to PDF and supports other formats as well. 

Key Features of the MacSonik Software

  • Open MSG files directly on Mac.
  • Preview emails and attachments.
  • Maintain original formatting.
  • Supports bulk MSG files.
  • This process has a fast file loading.
  • User-friendly interface for everyone.
  • No Outlook installation required.

How Do I Open a MSG File: Step-by-Step Procedure 

    1. Firstly, download & launch the MacSonik MSG Viewer Tool.
    2. launch the MacSonik MSG Viewer Tool

    3. Click Select File(s) to upload the MSG file and click Open.
    4. Select File to upload the MSG file and click Open

    5. Expand the tree hierarchy, preview the details, and click Next. 
    6. Expand the tree hierarchy, preview the details

    7. Choose PST or another preferred format as the saving format.
    8. Choose PST or another preferred format

    9. Finally, apply filters, set the path to save the file, and click Convert to start the process.
    10. apply filters, set the path to save the file, and click Convert

Conclusion

In the end, opening MSG files on Mac without Outlook is possible through several free methods. However, these methods often require extra steps and may not preserve all email properties accurately. For users who frequently handle Outlook emails, a dedicated MSG viewer provides a more reliable way to open MSG file on Mac. It accesses messages, attachments, and metadata without relying on Outlook or complicated conversion processes.

Frequently Asked Questions

Q1. How can I open MSG files on Mac without installing Outlook?

Ans. You can view MSG files on Mac without Microsoft Outlook by using free MSG viewers, converting MSG files to EML format for use with Apple Mail, or using dedicated MacSonik MSG viewing software designed for macOS.

Q2. Is it possible to view MSG files on a Mac for free?

Ans. Yes, there are several free methods available. You can use online MSG viewers, convert MSG files to EML format, or utilize free email clients that support compatible formats. These methods are suitable for viewing individual MSG files without additional cost.

Q3. Does MacSonik MSG Viewer support bulk MSG file viewing?

Ans. Yes, the MacSonik MSG Viewer is designed to handle multiple MSG files simultaneously. It allows users to preview large collections of Outlook MSG files while maintaining email formatting, metadata, and attachments.

Q4. Can I access email attachments inside MSG files on Mac?

Ans. Yes, attachments stored within MSG files can be accessed on Mac using a compatible MacSonik MSG viewer tool or email applications that support MSG file viewing. This allows you to preview and access attached documents, images, and other files along with the email content.

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