How to Convert OST to MBOX Format?

Jackson Strong | June 13th, 2024 | Data Conversion

Learn how to convert OST to MBOX file in a few simple steps. OST to MBOX Conversion is one of the most common queries people ask on various forums. This blog post will help those users through several tried and tested ways to complete this task. Let us explore different techniques to export emails from OST file to MBOX file format.

OST is a standard file format that Outlook creates as an offline data file. It contains large amounts of individual user data. However, the main problem with OST files is that they can only be opened on a computer with the original Outlook profile. To open OST file without Outlook, you need to convert it to MBOX file format compatible with many email applications.

How do I convert OST to MBOX for free? First, open Outlook and use the Import/Export Wizard to export OST to PST data file. Next, create a new email account and import PST file into this email account. Then install Mozilla Thunderbird and set up the same email account. Once you have added your account, save it in MBOX format using the ImportExportTools NG plugin.

However, you can only use this method if an Exchange Server connection and Outlook are installed on your computer. Make sure you use the Outlook credentials for the Exchange account.

To overcome these types of issues, we are going to discuss an easy-to-use approach to easily convert OST emails to MBOX format. Let’s begin now!!

How to Export OST File to MBOX Format Automatically?

Download and install the Advik OST Converter Toolkit. With this software, you can easily convert multiple OST emails to MBOX file in one go. You can add as many OST files as needed to convert into MBOX without any extra efforts. Also, it enables users to export OST file to MBOX while preserving data integrity and mailbox folder structure.

Moreover, it is an easy-to-use software that completes the whole OST to MBOX conversion process in just a few simple steps.

Give a Free try to this handy utility and export first 25 emails from each OST folder to MBOX format at no cost.


Steps to Convert OST to MBOX File

Step 1. Run OST to MBOX Converter software and add .ost files.

Run the software and add .ost files

Step 2. Choose the required OST mailbox folders.

Choose the required OST mailbox

Step 3. Select MBOX as a saving option from the list.

Select MBOX as a saving option

Step 4. Browse the destination path and click Convert.

click convert to export ost to mbox

The OST to MBOX conversion process has been started and you will get notified in a few seconds.

OST to MBOX conversion started

The procedure has been completed, you will be redirected to your chosen destination soon.

convert ost to mbox process completed

Watch How to Convert OST File to MBOX Format

Key Features of Advik OST to MBOX Converter

  • Convert OST files to MBOX in Bulk: This OST to MBOX Tool makes converting OST emails to MBOX format simple and quick. Users can easily convert multiple OST files to MBOX at once with just a few easy steps.
  • Save resultant data at the desired location: The tool allows you to set the destination path for the converted OST files using the Browse button. This feature helps users save their files in a preferred location for easy access.
  • Maintains Folder Structure and Data Integrity: The tool ensures the original structure and data integrity of the OST files are maintained during conversion. Whether you are converting a few files or many, the output will be accurate and unchanged.
  • Supports orphaned/Corrupted OST File: This utility effortlessly converts orphaned, corrupted, damaged, or inaccessible OST files into MBOX format without any issues.  The conversion process is smooth and error-free to easily access items from inaccessible OST files.
  • Track Live Export Status: This utility will give a live progress report. After starting the conversion process screen will show ongoing details. Such as the number of files converted, files left, and export status.
  • Handles Large OST Files with Ease: The tool can handle OST files of any size and convert them to MBOX without any issues. You can upload and convert large OST files quickly. It helps to convert multiple OST items without worrying about file size.
  • Compatible with All Outlook and Windows OS Versions: The tool can convert OST files from all versions of Outlook, including Outlook 2021 and earlier versions. It is compatible with all the latest and previous versions of Windows OS as well.


We are ending this blog by providing a convenient and easy-to-use approach to converting OST file to MBOX format. The software described in this article is specially designed to export emails from OST file to mailbox format in bulk. Therefore, you can save both time and effort. Before purchasing the licensed version, we recommend you try the free demo version to test the working process and all advanced features for free.

Frequently Asked Questions (FAQs)

Q1: Can I convert OST to MBOX without Outlook?

Answer: Yes, you can use Advik software designed specifically for exporting OST file to MBOX without Outlook.

Q2: Are there any free tools for OST to MBOX conversion?

Answer: While many tools offer free trials, the most reliable and efficient tools are paid. However, manual methods can be free but are more time-consuming.

Q3: Is it safe to use automated software to convert OST file to MBOX?

Answer: Yes, Adviksoftware assures 100% safe and secure OST to MBOX conversion process. Ensure you download it from its official website to avoid any issues.