The Quick Answer
Click your avatar icon in the top-right corner of the screen, then select "Log Out" from the dropdown menu. This returns you to the login screen where you can enter a different account's credentials. That's technically all there is to it on paper. In practice, Roblox makes this slightly annoying by design. They want you staying logged in and playing. But if you're running multiple accounts—maybe a main, a side account for trading, and a younger sibling's account—the logout flow works fine as long as you don't have any games running in the background.
How To Switch Accounts On Roblox
Here's the step-by-step that actually covers the real-world scenarios: On desktop browser or Windows app: 1. Make sure you're not currently in a game. If you are, exit to the home screen first. Being mid-game when you try to log out will usually just disconnect you without switching accounts properly.
2. Click the avatar/status icon in the top-right corner. It's your profile picture if you're logged in, or the default Roblox blob if you're not. 3. Click "Log Out." You'll be returned to the sign-in screen. 4. Enter the username and password for the account you want to use.
Get the Full Details

On mobile (iOS or Android): 1. Open the Roblox app and make sure you're on the home screen, not inside a game. 2. Tap the three-line menu icon in the bottom-left corner.
3. Tap the gear icon for Settings. 4. Scroll to the bottom and tap "Log Out." The app takes you back to the login screen. On Xbox:
Press the Xbox button, go to Profile & System, select Switch Account, and follow the prompts. This one's straightforward because Xbox handles the account layer itself.

What Doesn't Work
People often try closing the app completely and reopening it, hoping that'll force a clean account switch. It doesn't. Roblox's desktop and mobile clients cache sessions aggressively. Unless you explicitly hit Log Out through the menus, closing the window or killing the app does nothing to clear the active session. Similarly, clearing your browser cache on desktop will eventually force a re-login, but it wipes everything—cookies, saved preferences, experience history—not just the Roblox session. It's an overkill solution that causes more problems than it solves. And yes, using multiple browser profiles or separate browsers for different accounts works fine on desktop. I run Chrome for my main account and Firefox for a alt. No issues there. Just be aware that you'll need to manage two sets of passwords and remember which browser has which account active.
The Bottom Line
Switching accounts on Roblox is functionally trivial. Log out through the menu, wait a moment, log back in. The friction comes from the edge cases: Remember Me persistence, token caching on slow connections, and shared-device security concerns. If you deal with those properly, the whole process takes under thirty seconds. If you don't, you might spend twenty minutes wondering why your account keeps reverting to the old one.