How to Batch Convert EML to HTML with Zero Data Loss?

In today’s digital workspace, handling different email file formats is a common task. One such task that users often struggle with is converting EML to HTML format. If you’re facing a similar issue, this blog is for you, it explains the complete process in a simple and straightforward way.

Real User Query

“My company has recently decided to convert EML email to HTML file format. We’ve got several EML files and I’ve been assigned to handle this task. The problem is, I’m not sure how to carry out the conversion correctly. If someone knows a reliable solution, please guide me. Thanks in advance.”

EML vs. HTML: Understanding the File Formats Before Conversion

EML file is a standard email message format utilized by numerous email clients i.e. Outlook Express, Apple Mail, Thunderbird, Eudora, Entourage, Windows Live Mail, etc. It stores a single email with all its elements intact including the subject, sender and recipient details, date, time, body content, and even attachments. On the other hand, an HTML file (HyperText Markup Language) is a web page format used to display content in web browsers. It allows for easy viewing of text, links, images, and formatting in a structured layout. Converting EML to HTML makes it possible to open email content in any browser, without needing an email client, while preserving the original formatting and layout of the message.

Why Convert EML Files to HTML? Top Reasons You Should Know

• HTML files can be opened on any device using a web browser, making them easily accessible across platforms.
• HTML allows rich formatting, letting you preserve the original layout, fonts, colors, and embedded elements from emails.
• If you want to publish or embed email content into blogs, websites, or online documentation, HTML is the perfect format.
• HTML files can be modified with any text editor or web design software — no special tools required.
• Converting to HTML ensures important messages and their structure are preserved and readable long-term.

How to Convert EML to HTML: Manual Methods You Can Try

There are two commonly used manual methods to convert EML files into HTML format, one using Microsoft Outlook and the other using Mozilla Thunderbird. Below, we’ll walk you through both step-by-step.

#1: Convert EML Email to HTML Using Microsoft Outlook

If you have Outlook installed on your system, you can use it to save EML files in HTML format:

• Open Microsoft Outlook on your computer.
• Locate the EML file you want to convert.
• Drag and drop the EML file into any Outlook folder (e.g., Inbox).
• Double-click to open the imported email.
• Click on File > Save As.
• In the “Save as type” dropdown, select HTML.
• Choose your destination folder and give the file a name.
• Click Save to export the email in HTML format.

Result: The EML file is now saved as a fully formatted HTML file, accessible from any web browser.

#2: Convert EML File to HTML Utilizing Thunderbird

If you’re using Mozilla Thunderbird, you can install a free add-on to enable EML to HTML conversion.

• Launch Mozilla Thunderbird on your system.
• Click on the Menu (☰) icon and go to Add-ons and Themes.
• Search for ImportExportTools NG and install the extension.
• Restart Thunderbird after installation.
• Right-click on Local Folders > Choose ImportExportTools NG > Select Import EML message.
• Import your EML files into Thunderbird.
• After import, right-click on the desired email > Choose Save As.
• Select HTML format as the save type.
• Choose the destination folder and click Save.

Result: Your EML file is successfully converted into HTML format, preserving the structure and content.

Note: While both manual methods are effective for small-scale tasks, they can become tedious if you have a large number of files. Also, Microsoft Outlook or Mozilla Thunderbird must be installed and properly configured, which may not be ideal for all users.

Restrictions to Keep in Mind When Converting EML to HTML

While converting EML files to HTML can be useful, it’s important to be aware of some limitations that may affect the outcome, especially with manual methods:

• Manual methods often struggle with large or bulk EML file conversions.
• Complex formatting or embedded elements may not always appear correctly in the final HTML file.
• Most basic conversion methods don’t preserve email attachments during export.
• Key details like headers, time stamps, or message IDs may not be fully retained in HTML format.
• Manual techniques usually require specific applications like Outlook or Thunderbird to work.

These limitations can affect both the quality and reliability of the converted files. That’s why choosing an expert or trustworthy EML to HTML Converter is often the more efficient option especially for bulk conversion tasks.

Best All-in-One Tool to Convert EML to HTML with Attachments

If you’re looking for a hassle-free, accurate, and feature-rich solution to convert EML to HTML, the BitData Migration EML Converter Tool is an excellent choice. Unlike manual methods, this software ensures that your emails along with all their attachments are preserved and exported cleanly into HTML format without any data loss.

Whether you’re a technical user or someone with minimal experience, this tool is designed with simplicity and performance in mind. It supports both single and bulk file conversions, making it suitable for personal use, business tasks, or large-scale migration projects.

Best of all, a free demo version is available so you can test the software’s features and interface before upgrading.

How to Use the EML Email to HTML Converter – Step-by-Step Guide

1. Download & install the EML File Converter Tool on your computer.
2. Launch the software and use the Single or Multiple File option to add EML files.
3. Choose the desired folders and preview the email contents to verify the data.
4. From the Select Saving Option dropdown, select HTML as the output format.
5. Customize settings using built-in features (like date filters, naming convention, etc.), then choose your destination path for saving the files.
6. Hit the Convert button to begin the conversion process.

Key Features That Make the EML to HTML Conversion Tool a Smart Choice

The EML to HTML Tool comes packed with powerful features that simplify the conversion process and ensure accurate results. Here’s a full look at what makes this utility so effective and user-friendly:

• Whether you wish to move one file or thousands, the program adapts easily. You can select individual EML files or import an entire folder for batch conversion making it ideal for both personal and enterprise use.
• The software ensures that all essential email components such as sender and recipient addresses, subject lines, timestamps, and read/unread status remain intact throughout the conversion process. This is especially helpful for maintaining the authenticity and structure of professional emails.
• Unlike manual approaches, this utility runs independently. You don’t need to install MS Outlook, Thunderbird, or any other third-party programs to import your EML files to HTML format.
• It is designed to run smoothly on all major versions of Windows, including Windows 11, 10, 8.1, 8, 7, etc. Also, this app works with all macOS editions.

Final Thoughts

There are multiple ways to convert EML to HTML format. Manual methods, such as using Mozilla Thunderbird or MS Outlook, can help perform the migration, but they come with limitations. For instance, Thunderbird might fail to import certain EML files correctly, which can result in errors or even file corruption.

On the other hand, using a perfect and advanced EML to HTML Conversion Tool gives a much smoother experience. This application doesn’t require any technical expertise, and allows you to convert single or bulk EML files without risking data loss. And more, most professional programs like the one discussed above come with a free demo pack, so you can test all the key features and functionality before committing to the pro edition.