Free Methods to Import OST File Emails to Gmail in Minutes

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  • Published on
    March 15th, 2023
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    6 minutes
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Summary:- MS Outlook is widely used by many organizations but they get into trouble when they shift from Outlook to Gmail. They want to migrate all the Outlook files including OST and PST from their account to Gmail. Therefore, here we have brought you some of the easiest ways to import OST file to Gmail with attachments and email folders. There are two ways to do this task either by using OST Converter or GSMMO Tool. We would cover both methods to make the importing process easier for you.

Methods to Import Emails from OST File to Gmail

There are two prominent methods that will help you to do the OST to Gmail Migration. First, we would discuss the automated software because it involves a few simple steps. Then you can explore the manual method for importing OST file emails to Gmail using the GSMMO tool.

Migrate OST to Gmail using OST Converter

This is an automated software that doesn’t even need MS Outlook installation to migrate all emails from an OST file to Gmail. You will just have to lauch the OST Converter>Add OST File>Mark OST File Emails>Choose Saving Format as Gmail>Authenticate Gmail Login>Import OST Files.

For a better understanding, you can follow the detailed steps given below:-

  • Download and Launch OST Converter Software.
  • Add the OST file that you want to import to Gmail.
  • Mark OST File emails and choose the saving format as Gmail.
  • Authenticate your Gmail Login and all your OST file emails will be imported to Gmail.

So, in just 4 easy steps you can migrate all emails from your OST file to your Gmail account. But if you have good technical expertise then you can try the manual method to migrate OST to Gmail without software.

Import OST File to Gmail using GSMMO

This is a manual method that can be used for importing the OST file and it involves 3 major steps. You will have to implement the 3 major steps mentioned below:-

  • Extract the OST File
  • Convert OST to PST
  • Import PST to Gmail using GSMMO Tool

Step1- Extract the OST File

  • Open MS Outlook and go to the File Tab.
  • Click on the Account Settings option and then click on Account Settings.
  • Move to the Data Files tab and click on the OST file that you want to import to Gmail.
  • Then click on the Open File Location option.
  • The location opens and you can extract the OST file from there.

Usually, the location of the OST file is C:\Users\user\AppData\Local\Microsoft\Outlook but it depends on the user’s preferences regarding where he wants to save the OST file.

After extracting the OST file, you will have to convert it to PST.

Step 2- Convert OST to PST

In order to import OST to Gmail, you will have to convert the file to PST.

  • Open MS Outlook and go to the File tab.
  • Click on the Open & Export option and then choose Import/Export.
  • Now click on the Export to a File option and then on Next.
  • A new dialog box will open where you will have to click on the Outlook Data File (.pst) option.
  • Click on Next and now choose the Account whose email you are willing to migrate to PST.
  • Click on Next to continue and now browse the location to save the resultant PST file.
  • In the end, click on Finish and your OST file will be converted to PST.

After converting the OST file to PST, you can import that file to your Gmail account using GSMMO Tool.

Step 3- Import PST to Gmail using GSMMO Tool

GSMMO stands for Google Suite Migration for Microsoft Outlook Tool. It is a free application that can help you to import the converted OST to PST file to Gmail. You can explore the steps given below:-

  • Download and Launch the G Suite Migration for Microsoft Outlook.
  • Enter the login information and click on Continue.
  • A sign-in page will open and GSMMO will ask to access your Google account and you will have to allow the Access.
  • Then a new dialog window will open where you have to select From the PST file(s) option from the dropdown menu.
  • Click on Next and the location will be opened where all Outlook PST files are saved.
  • You can even paste the location’s file path in the Address bar of the PST file that you have converted from OST.
  • The PST file will be imported and click on the Next button to proceed.
  • Customize the migration settings according to your preference and click on Migrate after customizing.
  • Now the PST migration process starts and you will receive a confirmation once it is done.

Now you can log in to your Gmail account and in the Left Pane, you can see the imported PST file. So, this is how you can import OST file to Gmail. First, you will have to convert it to PST and then import that file to Gmail using GSMMO Tool.


You have two options among which you are free to choose any option for OST to Gmail Migration. If you think that the manual method isn’t time-friendly then you can straightaway use the OST Converter Software. The best thing about using the software is that you will not have to go through lengthy steps and the OST to Gmail Conversion will be done in just a few steps.

Frequently Asked Questions

Q. How can I import only emails without attachments from OST to Gmail?

Ans – If you want to migrate only emails from your OST File to Gmail then there is an option to migrate emails without attachments. Enabling this feature will migrate only emails from the OST File.

Q. Is it safe to use Sysinfo OST Converter for OST to Gmail Migration?

Ans – Yes, it is 100% safe software that can be downloaded on all versions of Windows and Mac. You can use this software to migrate all data from your OST file to your Gmail account.

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