If you run out of free space on your Google Account, you can find and delete the largest documents in your Google Drive, Gmail, or Photos account. See how.
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First, visit the Google Storage Manager website in the Windows 10, Mac, or Linux browser, and sign in to your Google Account.
Scroll down until you reach the "Large items" section. Here, you will find separate boxes with the largest documents in your account at gmail, Google Drive and Google Photos.
Click the "Review and Clear" or "Review and Free Up" button below any of these tabs to browse for a list of the largest files stored on this particular service.
In the following screen, you can click on any file to preview. If you want to delete one or more of the items that appear, first select each item that you want to delete by clicking the circle in the upper left corner of the thumbnail (until it has a check mark). Then click on the trash can icon in the upper right corner of the window.
Please note that files deleted from here will not be available in the "Bin" or "Trash" folder in Google Drive. They will be permanently withdrawn from your account.
In the confirmation prompt that appears, select the "I understand that once I delete the files, they can not be recovered from the bin" box, then click "Permanently Delete".
Depending on the overall size, Google will need some minutes to delete the selected files.
If you often run out of space in Google services, you may need to upgrade your storage with Google One. Good luck!
Source of information: howtogeek.com