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Comprehensive Guide: Free Methods to Convert OST to PST in MS Outlook 2021/2019/2016/2013 & 2010

Comprehensive Guide: Free Methods to Convert OST to PST in MS Outlook 2021/2019/2016/2013 & 2010

Convert OST file to PST free

In this comprehensive guide, we will explore free methods to convert OST to PST in MS Outlook 2021/2019/2016/2013 & 2010. If you're facing issues with your OST file and need to convert it to PST format without spending any money, you're in the right place. We will discuss various techniques and software that can help you achieve this conversion without any hassle.

Free OST to PST conversion software

There are several free OST to PST conversion software options available that can assist you in converting your OST file to PST format. These software tools are designed to provide a user-friendly interface and seamless conversion process. Let's take a look at some of the best free OST to PST conversion software:

  • 1. ATS OST to PST Converter: ATS OST To PST Conversion Tool is a reliable and efficient software that allows you to convert your OST files to PST format for free. It offers a simple and intuitive interface, making the conversion process easy even for novice users. The software supports conversion for all versions of MS Outlook, including 2021/2019/2016/2013 & 2010.
  • 2. SysVita for OST to PST Converter: Kernel for OST to PST Converter is another popular choice for users looking for free OST to PST conversion. This software ensures a quick and accurate conversion while preserving the integrity of your data. It supports all major versions of MS Outlook and can efficiently handle large-sized OST files.
  • 3. InQuit OST to PST Converter: InQuit Software offers a free OST to PST converter tool that allows you to convert your OST files to PST without any limitations. The software maintains data integrity during the conversion process and supports all versions of MS Outlook.

OST to PST conversion

When it comes to converting OST to PST, there are a few methods you can follow. Let's explore the different techniques that will allow you to perform this conversion effectively:

1. Outlook Import/Export Wizard

The Outlook Import/Export Wizard is a built-in feature of MS Outlook that can help you convert your OST file to PST format. Follow the steps below to use this method:

  1. Open MS Outlook on your computer.
  2. Click on "File" in the top menu bar.
  3. Select "Open & Export" and then click on "Import/Export".
  4. Choose "Export to a file" and click "Next".
  5. Select "Outlook Data File (.pst)" and click "Next".
  6. Choose the OST file you want to convert and select the desired options.
  7. Click "Finish" to start the conversion process.

2. Drag and Drop Method

Another simple method to convert OST to PST is by using the drag and drop feature in MS Outlook. Follow these steps:

  1. Open MS Outlook and create a new PST file.
  2. Go to your OST file location and find the desired OST file.
  3. Drag and drop the OST file into the newly created PST file.
  4. Wait for the import process to complete.

3. Use Free OST to PST Conversion Software

If you prefer using third-party software, as mentioned earlier, there are several free OST to PST conversion tools available that can simplify the process for you.

Considerations before converting OST to PST

Before converting your OST file to PST format, there are a few important considerations to keep in mind:

  • Make sure to backup your original OST file before performing any conversion to avoid the risk of data loss.
  • Carefully choose the conversion method or software to ensure compatibility with your version of MS Outlook.
  • Check if the free OST to PST conversion software you're using has any limitations on file size or number of conversions.


Converting OST to PST format in MS Outlook is essential when you want to access your data from different versions or in different email clients. In this article, we discussed various methods and free software options that can help you perform this conversion effectively. Depending on your preferences and requirements, you can choose the method or software that suits you best. Always remember to take necessary precautions and backup your data before performing any conversion.

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