Free PST to MBOX Converter Tool



Outlook PST to MBOX Converter

Perfect Solution to Convert Outloook PST to MBOX Thunderbird, Eudora, Entourage

(Average Rating 4.8 Based on 847 Reviews)
  • Easily Convert PST to MBOX Thunderbird Format
  • Create a Single MBOX File for Each Outlook PST
  • Migrate Outlook .pst File of Any Size to .mbox File
  • Outlook Installation is Necessary for Conversion
  • No File Size Limitation for the Outlook File Upload
  • Conversion to Both ANSI and UNICODE Type PST
  • Import Resultant MBOX into Various Email Clients

FreeViewer Awards & Reviews

2020 Best Software to Convert PST File to MBOX

FreeViewer Outlook to MBOX Converter Tool

3-Step Approach to Export PST File to MBOX Format

Main Features of Outlook to MBOX Converter Tool

PST File to MBOX Conversion Software Features to Export Outlook Data File

Export PST to Thunderbird

Convert PST to MBOX Thunderbird

Effortlessly transfer all mailbox data from Outlook PST to Thunderbird MBOX file format. Data items like Inbox, Drafts, Sent Items, etc. can now be saved in .mbox file. This file can then be imported to Thunderbird. This way all the emails from Outlook will be exported to Thunderbird. Easily convert PST to MBOX in Windows 10, 8.1, 8, 7 versions.

Folder Hierarchy

Folder Hierarchy is Maintained

Use Outlook to Thunderbird Converter to easily move data between email clients. All the messages are saved in exactly the same folder as they were in the original .pst file. There is no data loss or changes made to emails during the transfer process. A single .mbox file is created for each .pst file. Just upload the file and perform the conversion process with an ease.

Easy to Use PST to Thunderbird Application

Easy-to-Use Software Interface

It is a user-friendly software that can be used by both home and business user. Even a non-technical person can use the software panel with ease. There are easy options and simple buttons that enable users to try the application at least once. Convert PST to MBOX Thunderbird with the click of a single button.

Folder Item Count

View Item Count of Each Folder

PST to Thunderbird Converter tool has a feature to view a number of emails per folder. The item count of each mailbox folder within the PST file is displayed on the software panel. This option emerges as soon as the PST file is uploaded into the tool & Export button is clicked from the navigation bar.

Import Resultant MBOX

Import MBOX to Different Apps

Use PST to MBOX Converter tool to completely transfer Outlook emails to a .mbox file. This file can then be imported to any of the different desktop based email clients available in the market. It can be used with Thunderbird, Eudora, Apple Mail, Entourage, and much more. There will be no compatibility issues and a new folder for the Outlook files will be created within the new email application.

Data Integrity

Data Integrity is also Retained

All email properties like header and body are in the exact same manner as they were in original mailbox. Email body is in perfect formatting as in the original message. The email header contains important information like to, cc, from, bcc, sent date, received date, server information, IP address etc. These all are kept intact during transfer by PST to Thunderbird Converter Software.

PST to MBOX Conversion Software Specifications
Free Download Outlook to MBOX Converter Tool

Software Download

Size: 2.9 MB

Version: 1.0

MD5: 518ce0c8b40b89f27cf4eedcb228faa2

Trial Limitations

Demo Version of PST to Thunderbird Converter Software Allows User to Export First 15 Emails from PST File to MBOX Format.

System Specifications

Hard Disk Space
100 MB of free hard disk space required

1 GB of RAM (2 GB is Recommended)

1 GHz processor (2.4 GHz is Recommended)

Application Pre-Requisites

If you are using Windows 10/8.1/8/7 or Vista, then please launch the tool as "Run as Administrator".
Microsoft .NET framework 4.5 and Above Version.
Microsoft Outlook (32 bit) should be installed and configured for a valid or dummy POP3 profile (Not Configured for Exchange).

Supported Versions

Microsoft Windows
Windows 10 32bit/64 bit, Windows 8 32bit/64 bit, Windows 7 32bit/64 bit, Windows Server 2012, Windows Server 2008 and All Below Versions


Electronic Delivery

PST to Thunderbird Converter Full Version Order Now
Get an Overview of Outlook to MBOX Conversion Software Features – Free vs Full
Features Free Version Full Version
Add Microsoft Outlook PST Files
Option to Maintain Folder Hierarchy
Feature to Show Item Count Details
Supports ANSI or UNICODE Type Outlook PST File
Windows 10 & All Other Previous Version Supported
Export Microsoft Outlook PST File to MBOX Format Export 15 Emails All Emails
Cost FREE (15 Emails) $39

Frequently Asked Questions

Listed Commonly Asked Questions and Answers

Explain the Functioning of PST to MBOX Converter Tool?

Convert PST to MBOX Format

Steps to Export Outlook to MBOX File are:

  • Step 1: Install & Launch PST to MBOX Converter
  • Step 2: Next, Browse & Add Outlook PST File
  • Step 3: Next Option is Maintain Folder Hierarchy
  • Step 4: Finally Click on Export Button for Finalization
No, the Outlook to MBOX conversion algorithm can not transfer emails from multiple files at once.
No, the PST to MBOX Converter tool can only transfer emails. It is not meant for contacts, calendars or any other mailbox data items.
No, the Outlook to Thunderbird migration tool is not meant to remove passwords from the protected .pst file.
No, The PST to Thunderbird conversion software cannot handle corruptions is a .pst file. Neither can it recover lost or deleted emails.
No, email clients that support .mbox file format are not needed for the conversion. Outlook is required to be installed on the local machine.

The PST to MBOX Converter software can migrate data from any of the Outlook version including 2013. It is compatible with Microsoft Outlook for 32-bit as well. A POP3 account must be configured on the machine using this tool.

  • To transfer emails from Outlook to Thunderbird, locate the .pst file from the Outlook Mail folder or search using a folder explorer.
  • Next, use PST to Thunderbird Converter to migrate emails from PST file to MBOX file.
  • After that, use the Thunderbird Importer to Import MBOX File into Thunderbird account.
  • Now, view all the contents of the .mbox file in the Thunderbird. They will be in the same exact manner as they were in original Outlook mailbox.

This PST to Thunderbird migration tool can help transfer emails from a Windows system to a Mac computer.

  • Firstly, go to MS Outlook >> File >> Import >> Outlook for Windows Data File(.pst) on the Windows system.
  • Next, use Outlook to MBOX Converter tool to transfer emails from PST file to MBOX format.
  • Now, launch the Apple Mail application on the Mac computer.
  • From there, go to File >> Import Mailboxes.
  • Then, choose File in MBOX Format from the list and then click Continue.
  • Next, Browse to the folder path where the .pst file is saved and click Choose.
  • Now, the emails will be added to Oh My MAC folder on the left pane of Apple Mail application.

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