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How to Batch Convert EML Files to HTML? Simple Guide

author
Written By
Nick Rogers
Published On
December 2nd, 2025
Reading Time
6 Minutes Reading

Summary: Today, most users work with EML files and prefer to convert EML files to HTML as it works on every browser and device. In this informative guide, we will be learning to save EML as HTML format using multiple ways. We will also cover the reasons to use a particular method, a clear comparison, and the pros & cons.

why save eml as html

How Do I Convert EML Files to HTML? Short Answer

You can export your EML files in HTML manually or automatically. Manually, you can convert EMLs by using Outlook, Thunderbird, or any text editor, and if you want to export directly, you can use the automated EML converter. Whereas manual methods are slow, risky, and do not provide complete data security, many users prefer a professional way. Let’s discuss both approaches briefly below.

Professional Method for EML to HTML Conversion- Quick Suggestion

If you are looking to convert EML files to HTML quickly in bulk without size restrictions, you can opt for the expert tool. The 4n6 EML converter tool is the best choice if you don’t have email clients or text editors installed on your device and want to export your data files in bulk with data security. 

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Easy Working Steps:

  1.   Install the tool and click Open.
  2.   Select the “choose folders” or “choose files” option.
  3.   You will discover multiple view modes, advanced search options, and property settings.
    view modes
  4.   Lastly, hit the export button > choose HTML > desired export options > save.

select save

Note: Otherwise, we have also mentioned the best manual methods for small batches and individual work below.

manual checklist

Manual Methods to Convert EML to HTML

If you have small batches, you can save EML as HTML manually by using Thunderbird’s add-ons, Text Editor’s drag & drop method. Let’s discuss all three manual ways briefly.

Method 1: Using Thunderbird Add-Ons

  1. Open Thunderbird and first select or create a folder where you would like to import your EMLs into.
  2. Right-click on the folder > ImportExportToolsNG > Import EML messages > Import all messages from a directory and subdirectories. From there, select the files and import them.
  3. Then, again, right-click on that folder, go to ImportToolsNG add-on, and click on export all messages in folder and choose HTML format.
  4. Then, it will save your EML as HTML.

Method 2: Convert EML Files to HTML via Text Editors

  1. Install any text editor like Notepad++, Sublime Text, etc.
  2. Then drag & drop your EML file one by one into the editor.
  3. Now, press Ctrl + S and save your EML files in HTML format.

Limitations of Using the Manual Way

  • The manual method is a time-consuming and slow process, as you will have to drag & drop each EML one by one. You cannot import hundreds or thousands of files in bulk safely.
  • Also, if Thunderbird is providing bulk conversion, it doesn’t guarantee to convert EML files to HTML with complete security and proper hierarchy.
  • It does not maintain the accurate hierarchy and structure of the data files and folders. While dragging & dropping or importing in bulk, it often disturbs the original formatting.
  • The attachments, links, images, metadata, etc, are not intact. It only converts the message body.
  • It is not advisable for enterprises and professional work, as it may lead to major data loss.

Major Features of the Expert Tool

  • You can easily convert EML to HTML using this software in bulk. Without any size limitations or restrictions, you can batch export into HTML without data loss.
  • It guarantees to save EML as HTML with the complete formatting structure intact. The original hierarchy and structure of the files will be intact.
  • The professional tool provides 100% data security & integrity as it does not save the data in its environment and forwards a copy of the data files. This process keeps the original files the same as before without any changes.
  • It has a user-friendly interface and doesn’t require you to install any application or email client to convert EML files to HTML.
  • You can extract specific properties like attachments, phone numbers, email addresses, etc, separately.
  • For accurate migration, you have to just select your main folder, and it will select all the EML sub-folders and files from the scattered data and display them in the exact same hierarchy.

Bonus Point: Using this expert utility, you can also convert EML files to MBOX, Gmail, PDF, etc. There are multiple softwares programs like EML to PST converter, EML converter, free EML file viewer, and many more that allow users to export their crucial EMLs into their desired format.

comparison

Which one to Choose? Final Verdict

We can conclude this blog by stating that if you are an individual who wants to convert EML to HTML file in small batches. And if you are a professional with multiple large EML files, you can use the automated approach. You can convert EML files to HTML easily by reading this informational guide.

Frequently Asked Questions

Q1. Can I convert EML files to HTML format using an online solution?

Ans: Yes, an online EML to HTML converter can do your task, but there is a risk of data privacy. Since the online software to convert EML to HTML format takes your data on its servers for the conversion process. Therefore, experts do not recommend online solutions if you are handling EML files containing sensitive information. 

Q2. Can we use text editors to save EML files as HTML that is readable too? 

Ans: No, for most cases, your converted EML files are not in a readable format if you are using a text editor for EML to HTML conversion. The text editor only allows you to open EML files because it is a plain text format. In most cases, you will get the converted data in an unreadable format. Therefore, it is not an expert-suggested approach. 

Q3. Which method is best to convert EML files to HTML format?

If you want your data to be preserved during the EML files to HTML conversion process. Then, in such cases, it is suggested to use a specialized EML to HTML converter like that from 4n6.

Q4. Does the 4n6 EML to HTML converter save EML files as HTML with attachments?

Yes, the 4n6 specialized EML to HTML conversion utility can bulk save multiple EML files as HTML along with their attachments.

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