What logging out means and why it matters
Logging out means ending your session on a website, app, or device so that you are no longer signed in as yourself. When you log out, the system forgets who you are until you sign back in with your password. This is different from just closing a browser window or app — closing the window might leave you logged in, which means anyone who picks up your device can access your accounts.
Logging out is most important on shared devices, public computers, or devices you are about to sell or give away. On your personal phone or computer that only you use, logging out is less critical, though many people do it anyway as a security habit. The main risk of staying logged in is that someone with physical access to your device can read your messages, change your password, or spend money from your account without needing to know your password.
Key Takeaways
- Logging out removes your account from the device so the next person cannot access it without your password.
- Most websites and apps have a log out button in a menu or settings area, usually labeled "Log Out", "Sign Out", or "Exit".
- On shared or public devices, always log out before walking away, even if you are only stepping away for a few minutes.
- Closing an app or browser window does not always log you out — you must find and click the actual log out button.
- If you forget to log out on a public device, you can often log back in and log out remotely from another device.
Where to find the log out button on websites
On most websites, the log out button is in a menu tied to your account name or profile picture. Look for your name or a circular icon in the top right corner of the page. Click it, and a small menu should drop down with options like "Log Out", "Sign Out", or "Exit". Some sites also put this button in a hamburger menu (three horizontal lines) on the left or right side of the page.
If you cannot find the log out button, check the settings or account page. On Gmail, for example, click your profile picture in the top right, then select "Sign out". On Facebook, click the downward arrow in the top right, scroll down, and click "Log Out". On Twitter, click the three dots next to your profile picture, then select "Log out". Each site arranges this differently, but the button is always somewhere in your account menu, never buried in a random place.
If you are on a mobile app instead of a website, the log out button is usually in settings. Open the app, look for a gear icon or "Settings" option, find your account section, and look for "Log Out" or "Sign Out". Some apps, like Instagram, put this at the very bottom of the settings menu.
How to log out on your phone or computer
Logging out of individual apps is the same process as logging out of websites — find the menu and click the log out button. But if you want to log out of your entire device, the steps depend on whether you use an iPhone, Android phone, Windows computer, or Mac.
On an iPhone, you log out of your Apple ID by going to Settings, tapping your name at the top, scrolling down, and selecting "Sign Out". On an Android phone, go to Settings, tap your Google Account, select "Manage your Google Account", go to the "Security" tab, scroll down to "Your devices", and tap the device you want to log out of, then select "Sign out". On a Windows computer, go to Settings, select "Accounts", click "Sign out", and follow the prompts. On a Mac, go to System Settings, click your name, and select "Sign Out".
These steps log you out of your main account on the device, which means the next person to use it will see a login screen. This is the most thorough way to find a shared device before you hand it to someone else.
Logging out on shared or public computers
Public computers — at libraries, schools, internet cafes, or hospitals — should always be logged out of before you leave. Even if you are only stepping away for two minutes, log out. Someone walking by can sit down and access your email, bank account, or social media in seconds.
The safest approach is to log out of every account you used, then close the browser entirely. Some public computers have a button on the desk or keyboard that logs out all sessions at once — ask the staff if you are unsure. If the computer has a shared login (meaning multiple people use the same account on the device), logging out of individual websites is your only option, and you should do it for every site you visited.
If you forget to log out on a public computer, do not panic. As soon as you realize it, log into that account from a safe device (your phone or home computer) and change your password. This forces anyone using the public computer to log out automatically. You can also check your account's login history or active sessions to see if anyone else has accessed it since you left.
What to do if you cannot find the log out button
Some older websites or poorly designed apps do not have an obvious log out button. If you have searched the menus and settings and cannot find one, try these steps: look for a link that says "Account", "Profile", "Settings", or "Preferences" — the log out button is usually near one of these. If the site has a help section or FAQ, search for "how to log out" and the site name.
If the site truly has no log out button, your safest option is to clear your browser's cookies and cache, which will remove your login information from that site. In most browsers, you can do this by pressing Ctrl+Shift+Delete (Windows) or Command+Shift+Delete (Mac), selecting "All time" or "Everything", checking "Cookies and other site data", and clicking "Clear data". This logs you out of all websites at once, though it also clears your browsing history and saved passwords.
Another option is to straightforward close the browser entirely and use a different browser the next time you visit that site. This is less thorough than clearing cookies, but it works for most situations.
Logging out remotely if you forgot
If you logged into your email, social media, or bank account on a public or shared device and forgot to log out, you can log out from a distance. Most major services let you see where you are logged in and force a logout from another device.
On Gmail, go to your account settings, click "Security" on the left, scroll down to "Your devices", and click "Manage all devices". You will see a list of devices and locations where you are logged in. Click the device you want to log out of and select "Sign out". On Facebook, go to Settings, click "Security and login", and you will see "Where you are logged in". Click the device or location you want to log out of and select "Log out". On Twitter, go to Settings, click "Security and account access", select "Sessions", and click "Log out" next to the session you want to end.
This remote logout works because the service recognizes your account, not the device. Once you log out remotely, anyone trying to use that account on the public device will be kicked out and asked to enter your password again.
Why logging out is different from locking your screen
Locking your screen (pressing Windows+L on a Windows computer or Control+Command+Q on a Mac) hides your desktop behind a password prompt, but it does not log you out of your accounts. If someone unlocks the screen with your password, they can access everything you were logged into. Logging out actually ends your session, so they would need your account password, not just your device password.
On a personal device you control, locking the screen is usually enough. On a shared device, you should do both — lock the screen and log out of your accounts. On a public device, logging out is essential; locking the screen alone is not enough because the next user might not even know how to unlock it and will just restart the computer, which logs everyone out anyway.
Frequently Asked Questions
Does closing the browser window log me out?
Not always. Closing the window leaves your login cookie on the device, so if someone opens the same browser and goes back to that website, they may still be logged in as you. You must click the actual log out button to be sure. Some browsers have a setting to clear cookies when you close them, which will log you out automatically, but this is not the default.
What if a website says "remember me" — does that affect logging out?
The "remember me" checkbox tells the website to keep you logged in longer, even if you close the browser. Clicking it does not prevent you from logging out — you can still log out normally. But if you do not log out, the "remember me" option means you will stay logged in for days or weeks instead of just until you close the browser.
Can I log out of multiple accounts at once?
Not on most websites. You have to log out of each account separately by signing out, then signing in as a different user and signing out again. The exception is your device itself — logging out of your main account (Apple ID, Google Account, or Windows account) logs you out of everything tied to that account at once.
Is it safe to stay logged in on my personal phone?
It is safer than staying logged in on a public device, but it depends on how much you trust the people around you. If your phone is always with you and you have a strong lock screen password, staying logged in is convenient and reasonably safe. If your phone is often left on a desk or shared with family members, logging out of sensitive accounts like banking or email is a good idea.
What happens to my data after I log out?
Your data stays on the company's servers. Logging out just removes your access from that device. Your emails, photos, messages, and account settings are all still there and will be waiting when you log back in from any device.