How to Convert MSG to JSON File Format Like a Pro

Common Reasons to Convert MSG Files to JSON

• Easily import email data into CRM platforms.
• Process email information via APIs.
• Build custom applications.
• Perform email analytics.
• Preparation of data for AI and automation projects.
• Archive email information in structured databases.

As a result, JSON has become one of the preferred formats for exchanging email information between systems. Now, let us learn how to convert MSG to JSON file format.

Related Read – How to Convert MSG to MHT Format

Methods to Convert MSG to JSON

There are different ways to convert MSG files to JSON format. Some method require technical knowledge, while others are designed for everyday users. Let us explore each one by one.

Convert MSG to JSON Manually

Step 1: Open the MSG File

Open the MSG file in Microsoft Outlook.

Step 2: Identify Important Information

Collect details such as:

• Subject
• Sender
• Recipient
• Date
• Email Body

Step 3: Create JSON Structure

Open text editor such as Notepad or Visual Studio Code.

Create a JSON file manually using the extracted information.

Example:

{
  "Subject": "Monthly Report",
  "From": "[email protected]",
  "To": "[email protected]",
  "Date": "2026-06-24",
  "Body": "Please find the attached report."
}

Step 4: Save the File

Save the file with a .json extension.

Important Limitation

This method will not convert the MSG file. It will only recreate selected email information inside a JSON structure. Attachments, metadata, and advanced properties may need additional work.

Convert MSG to JSON Using Python

If you have programming knowledge, Python can automate MSG to JSON conversion. Istead of manually copying. Python can extract information directly from MSG file and save it as JSON.

Before using this method, install the required Python library by running following command:

pip install extract-msg

Once installed, use the following script:

import extract_msg
import json

# Open MSG file
msg = extract_msg.Message("sample.msg")

# Extract email information
data = {
    "subject": msg.subject,
    "sender": msg.sender,
    "date": str(msg.date),
    "body": msg.body
}

# Save data as JSON
with open("output.json", "w", encoding="utf-8") as file:
    json.dump(data, file, indent=4, ensure_ascii=False)

print("MSG converted to JSON successfully.")

Limitations of this Method

Python can automate MSG to JSON conversion, it also comes with some challenges:

• Need Python installation.
• Require coding knowledge.
• Additional scripting is needed to process attachments.
• Bulk conversion may need more advanced programming.
• Metadata preservation is challenging.
• Troubleshooting error can be difficult for non-technical users.

For developers these limitations can be manageable. For business users handling large collections of MSG files and management of scripts can become time-consuming and complex. We hope you are having some clarity on how to convert MSG to JSON file format.

Related Read – How to Convert MSG to CSV 

Challenges of Manual MSG to JSON Conversion

Whatever you select manual extraction or Python scripting, certain challenges remain common.

Metadata Preservation – Users can think of metadata as shipping label attached to a package. Without it important information like:

• Sender details
• Timestamps
• Routing information

Can be lost.

Attachment Handling – Attachments are stored separately from message content and can need additional processing.

Bulk Conversion – Conversion of a single MSG file is easy. Converting large dataset is a different task.

Human Errors – Manual copying increases the risk of some missing information or creating formatting issues.

Convert MSG to JSON in Bulk with a Professional Tool

If you want to convert multiple MSG files while preserving important email information, an automated solution can significantly simplify the process.

SysTools MSG Converter Tool supports exporting MSG files to JSON along with several other formats. This tool can process multiple MSG files preserve attachments, apply date filters and perform conversion without needing Outlook installation.

Key advantages include:

• Batch MSG to JSON conversion.
• Attachment preservation
• Email property retention.
• Preview before conversion.
• Date-based filtering
• Windows and Mac support

For organizations handling large email data, this approach removes the complexity associated with manual extraction and scripting.

If you have purchasing questions or need assistance selecting the right edition, contact:

Wrapping Up

Learning how to convert MSG to JSON file format is becoming increasingly important as organizations now rely more on automation,  APIs, analytics platforms, and AI-driven workflows.

For a small datasets manual extraction is sufficient. Developers can prefer Python for greater control. When you are dealing with a large email collections, preservation of metadata, attachments and email properties becomes easier with a professional tool.

Select method that best fits your requirements. You will be able to transform Outlook MSG files into structured JSON data that modern applications can understand.

Frequently Asked Questions

Q – Can Outlook export MSG files directly to JSON?

A – No. Microsoft Outlook do not provide any native option to export MSG files directly into JSON format.

Q – Can I convert multiple MSG files at once?

A – Yes. Batch conversion is possible using automated tools and custom scripts.

Q – Which method is best for non-technical users?

A – For users without programming experience, an automated conversion solution is usually the simplest approach.