I knew this feature exists in gmail, in fact earlier i found it myself without other help. But today when i needed i really struggled to find it out, so i thought of documenting this in simple steps.
For people who are new to gmail/google account, google allow you to remain logged in multiple computer at the same time,i.e., you can be logged in at your office and home at the same time using same account, but what if you want to log off from home sitting in office computer, so here is the step:
- Log in to gmail.
- go to the down in gmail page, as shown in following pic:

- Click on ‘details’ link which will open a pop-up showing detail login info.
- In this popup you can find a button saying “Sign out all other sessions”, click it and you are done.
- If you dont find above button don’t worry you are not logged in any where else
Actually it also helps you to know where else you are logged in.
Reference: Gmail official blog
