EML to Thunderbird Converter Software

Newly designed program to convert EML to Thunderbird-supported MBOX files. The easiest way to import EML files (single or multiple) into Thunderbird without the problem of data loss or modification.

  • Export EML to Thunderbird with email and their pertinent data.
  • Load a folder containing multiple EML files & convert them simultaneously.
  • Convert EML files of all supported mail clients (such as- Outlook Express, Windows Mail, Live Mail, etc.)
EML to MBOX Converter Software

Special Features of EML to Thunderbird Converter Software

EML to Thunderbird Converter tool

Instant Fast Software Delivery via Email

30 days return policy

  • Directly Import EML/EMLX with emails & attachments to Thunderbird.
  • Convert countless EML files to Thunderbird mail files in a single conversion cycle.
  • Add EML with 2 distinct options- Select EML folder or Select EML files.
  • Read emails from EML files directly into the software before the conversion operation.
  • Convert EML files only from selected folders and import them to Thunderbird profiles.
  • Export EML to Thunderbird without harming a single bit of email elements & formatting.
  • Convert EML with complete email data- attachment, embedded images, styles, font-sizes, etc.
  • Convert EML folder to MBOX or directly import EML to Thunderbird configured profile.
  • Filter emails from EML files based on date and sender or recipient email addresses.
  • Open/import the resulting MBOX not only in Thunderbird but also on all other supported email apps like- Entourage, Pocommail, SeaMonkey, Postbox, Mailcopa, The Bat!
  • Additionally, get the ability to Import EML to Office365 & other IMAP-based cloud email apps.
  • Compatibility with all old to new versions of Windows O/S (up to Windows 11).

Demo version: Import/Convert up to 25 EML files from each selected folder to Thunderbird for free.

EML to MBOX Converter Tool's More Features

Export/Convert EML to Thunderbird Mail files

Importing emails from EML files to Thunderbird is now easy with this excellent eSoftTools EML to Thunderbird converter software. This program will convert EML files to Thunderbird mail files with complete email properties.

It provides an option to convert EML to Thunderbird MBOX as well as allows to import EML emails directly into Thunderbird configured profile. Convert single or multiple EML files with zero chance of loss in a single process.

Know complete process >> How to Convert EML to Thunderbird?

convert eml to thunderbird mbox files
import eml to thunderbird

Direct Import EML to Thunderbird

Import all emails from EML files into Thunderbird email profile in a straightforward manner. The software will automatically detect the default store location of Thunderbird profile and saves the newly generated mail files to that location to access them with Thunderbird application.

eml to thunderbird mbox conversion

Convert EML to Thunderbird MBOX

To manually import MBOX files into Thunderbird, convert EML to Thunderbird-compatible MBOX files as well. 2 modes are available for saving EML to MBOX, which include: -

  • Single MBOX: - Import emails from EML files of multiple folders into a single MBOX file.
  • Separate MBOX: - Import/Save each EML folder to separate MBOX file.
bulk convert/import eml to thunderbird

Batch Convert EML to Thunderbird

The software lets users add an 'n' number of EML files or folders to convert all at once. Adding EML with 2 different options -

  • Select EML Files: - Add one or more EML files from a specific folder.
  • Select EML Folder: - Add an entire folder with multiple sub-folders and containing EML files at once.
convert EML from selective folder

Export Selective EML folder

EML to Thunderbird software allows users to selectively convert EML to Thunderbird. Users can select the required ones from the included EML files and folders. This selection enables users to convert only a few (only essential) EML files to Thunderbird files.

view eml files

Open & Read Email from EML

Check what's inside the EML files with the preview functionality of the software. Before conversion, get a preview of the emails from each inserted EML file. View EML emails with attachments and other related details in their original format.

maintain email formatting

Retain Email Properties

Export EML to Thunderbird without losing even a single part of the email. Extract emails from EML files along with attachments, message text, embedded images, header details (To, From, Subject, Date, etc.) and other properties and save them into new Thunderbird Mail files.

filter email with date and sender-reciever's email address

Different Email Filter options

Filter emails from emails available in multiple EML files and export only required emails. Perform email filtration with 3 modes: -

  • Date: - Select a start and end date and export emails that fall within the specified date range.
  • Sender: - Enter sender's email address for EML email export process accordingly.
  • Recipient: - Provide the recipient's email address and filter emails based on that.
eml to office365 migration

Upload EML to Office365 & IMAP

Transfer emails from EML files to Office 365 and other IMAP-based cloud mail apps. Export each email directly from EML to webmail apps with complete details. Migration requires only the EML files, an Internet connection, and the login details of your cloud mail account.

Note: - This function is available in Corporate, Technician and Enterprise licenses
(not available in Personal licenses).

easy to use GUI

User-friendly Interface

No technical expertise is required to use this software functionality. Users with any level of technical knowledge can use this tool effortlessly. Its GUI interface makes it easy for all types of users to perform EML to Thunderbird export operations easily.

windows compatible

Works on Windows O/S

Designed specially to work on computers running the Windows operating system. Perform the best EML to MBOX conversion without facing compatibility issues on any edition of Windows O/S. Easily run the software on Windows 11, 10, 8.1, 8, 7 and any older versions.

free eml to thunderbird conversion

Convert EML to Thunderbird Free

For user satisfaction, we provide a free demo version of this software to every user. This trial version will enable users to check how to operate the software and how to import EML files into Thunderbird. Also, this demo can convert up to 25 EML email files in Thunderbird for free.

Software Comparison - Demo vs Full Version

Software Features Trial Version Full Version
Convert EML/EMLX to Thunderbird files
Batch Convert EML to Thunderbird MBOX
Direct Import EML to Thunderbird profile
Convert EML from selective folders
Open EML for Email Preview
Mail filter based on date, sender and recipient
Unlimited EML to Thunderbird Conversion Convert up to 25 EML files from each chosen folder
Download Now BuyNow ($39)

Software Specification

Trial Limitations

Convert upto 25 EML from every selected folder without spending money using trial edition.

Software Info


Version Support
All EML file supported email apps.

Personal, Corporate, Technician, & Enterprise

Language Supported
English, German, Italian, French, Spanish

System Requirements

Intel® Pentium Class

Operating System

Hard Disk Space
50 MB of free hard disk space

Minimum 512 MB is required

Software Delivery


Delivery by E-mail

Supported Editions

Works with all windows O/S editions 10, 8.1, 8, 7, below editions

Frequently Asked Questions (FAQ)

  • Download and launch this EML to Thunderbird converter tool for Windows.
  • Insert EML files/folders with any available file-adding mode.
  • Load the imported EML files in the software and check emails from them.
  • Select needed EML files or folders and it on Convert EML.
  • Choose the Export to MBOX or Export to Thunderbird conversion option.
  • Apply other required settings with the select conversion mode.
  • Lastly, press the Convert button and import or Convert EML to Thunderbird.

Know complete process >> How to Convert EML to Thunderbird?

EML to Thunderbird Converter software

This software is designed to efficiently import emails from EML files to Thunderbird email client. It offers to import EML to Thunderbird with 2 different modes. Using this tool, users can convert EML to Thunderbird-compatible MBOX format as well as they can directly import EML emails into Thunderbird.
Yes, this software is completely safe and secure. It ensures that your emails will never be modified from the source EML files and in resulting files you will also get emails in their original form.
This tool supports batch processing to convert multiple EML files at once. You can insert multiple EML files/folders into the software and convert all selected files at once.

Yes, this converter is also able to export email with attachments during EML to MBOX conversion. Be it images, documents, or any other file type, it will save it in its original form in Thunderbird profile or MBOX files.

Yes, a separate technical support team is available 24/7 to provide technical support to the users to solve all their problems related to the software.

No, the software does not rely on any type of email client to perform the conversion process. This software requires only EML files supported by any email client for conversion.

Yes, we offer a trial version of this software so you can evaluate its performance and features before purchasing. With the free demo, users can convert only 25 EML files from each selected folder.

You can purchase the full version directly here - Buy Now. Once purchased, you will receive a license key that unlocks the full functionality of the software which will enable you to convert unlimited EML files to Thunderbird format.

Client Most Valuable Review's

(Rated 5 Star)
Using eSoftTools EML to Thunderbird Converter tool made transferring my emails easy. I did not lose any important details from my EML files during the email transfers, and the whole process was quick. The support team was also very helpful whenever I had questions. This tool saved me a lot of time and hassle, and I definitely recommend it if you need to move EML files to Thunderbird Account.
[ Jessica A Boutique Owner ]  [ Savannah GA ]
(Rated 5 Star)
I recently used your EML to Thunderbird Converter programme to move my old EML email files to the newly installed Thunderbird, and it worked great. It was super easy to use, and all my EML files got successfully transferred into my Thunderbird email programme without any problem. Thank you for the software you designed, eSoftTools.
[ Paul D Freelance Photographer ]  [ Denver, CO ]
(Rated 5 Star)
Yesterday, I used your software for EML to Thunderbird converter, and it was quick and easy to move EML files to Thunderbird local folder. It worked flawlessly because no errors were thrown by the software. Highly recommend it for hassle-free email transfer to Thunderbird!
[ Karen Demontie Graphic Designer ]  [ Portland, OR ]
(Rated 5 Star)
The technical support for the EML to Thunderbird converter was outstanding. They were quick to respond to my email and clear up my doubts. The support guy has extreme knowledge about the EML files and helped me through the entire conversion process. Their assistance made the conversion from EML to Thunderbird smooth and worry-free.
[ Carlos, Systems Analyst ]  [ Miami, FL ]
(Rated 5 Star)
It is a lifesaver tool for me. It helps me convert 50K+ EML files to Thunderbird without producing errors. The process of the EML conversion is super-fast and preserves all the details in the EML files. I highly recommend it to anyone needing a smooth conversion.
[ Emily, Digital Marketer ]  [ New York, NY ]