Many of us have multiple Google accounts for various reasons. You may be using it too much gmail and your work's Google Calendar, but you prefer to save files to your personal account's Google Drive.
Google has added features that make it easy for you to sign in to multiple accounts at once, so you do not have to log out of a Gmail account to check someone else's emails.
The connection is easy, but thechange of accounts is difficult
Once you've already logged in, click on your profile image at the top right and select any Google account from the drop-down menu to switch to that account.
The default account, is the one that appears at the top of this list, and is the one you connected to first. So if you type mail.google.com in line browser addresses, you will be automatically taken to this account. To set another Google account as the default, you must sign out of all existing accounts and sign in to that account first.
This obviously is too much work for users who need to be logged in and unplugged continuously between multiple accounts.
Below we will see a simple trick with url to help you quickly change your Google Accounts.
Open the Gmail account of your interest and press Ctrl + D (or Cmd + D on Mac) to add a bookmark.
Once you have added the new bookmark, right-click on it and select Edit to modify the bookmark.
Repeat steps for all your other Gmail accounts.
With just one click, you can quickly get started with the Gmail account you are interested in, even if this account might not be your default Google account.
The trick works with all Google Apps services such as Google Drive, Contacts, and Calendar.