It’s not necessary to log out of one Gmail account before you can check another. It’s now possible to log into multiple Gmail accounts simultaneously and the process couldn’t be easier. While logged into your Gmail account, click on the profile icon on the top-right corner of the screen. From the menu that drops down, select Add account. In the new browser tab that opens, enter the login credentials for the new account and you’re done. To switch between the two accounts, you can click the profile icon at the top right.