The quickest way to change your username on mobile

Open the Roblox app on your phone and tap the three horizontal lines (the menu icon) at the bottom right of the screen. Tap your username or profile picture at the top of the menu that appears. On the profile page, look for a pencil icon or "Edit" button next to your username — tap it. Type your new username in the text field, then tap the checkmark or "Save" button to confirm the change.

The entire process takes about 30 seconds. Your new username appears when ready across all your games and to other players. If you see an error message saying the username is taken or contains blocked words, try a different name and submit again.

Key Takeaways

  • Tap the menu icon (three lines) at the bottom right, then your profile picture or username to reach your profile page.
  • Look for the pencil icon or "Edit" button next to your current username and tap it to open the editing field.
  • Type your new username, check that it follows Roblox rules, and tap the checkmark or "Save" button.
  • Your new username takes effect when ready and shows to all other players in games and on your profile.
  • If the name is rejected, the app will tell you why — usually because it is taken, too similar to your old name, or contains words Roblox blocks.

What happens if your new username is rejected

Roblox rejects usernames for three main reasons. The name is already taken by another account. The name is too similar to your current username (you must change it enough that it is clearly different). Or the name contains words, numbers, or phrases that Roblox's filter blocks — usually profanity, slurs, or references to real-world violence or illegal activity.

If you get a rejection message, read it carefully — it usually tells you which rule the name broke. Try a completely different name rather than adding numbers to the same word. For example, if "SkyRunner" is taken, "SkyRunner123" will likely also be taken. Instead, try something like "CloudWalker" or "SkyDancer".

Checking if a username is available before you try it

You cannot check availability without attempting the change. The Roblox app does not have a separate search tool for usernames. The fastest way is to try the name you want — if it is taken, you will see an error when ready and can try another one without losing time.

Think of a few backup names before you start, in case your first choice is taken. Usernames with fewer letters or numbers are more likely to be taken, so longer or more specific names have better odds. For instance, "Alex" is almost certainly taken, but "AlexFromOhio" or "AlexTheBuilder" might be available.

How often you can change your username

Roblox allows you to change your username once every 30 days. If you changed your username recently, the edit button will be grayed out or show a message telling you when you can change it again. The 30-day timer starts from the date of your last successful change, not from when you tried and failed.

If you are locked out of changing your username, you can still play games and use your current name. The restriction only prevents you from editing your username again — everything else on your account works normally.

Why the app might not show the edit button

If you cannot find the pencil icon or "Edit" button next to your username, check that you are on your own profile, not someone else's. Tap your profile picture in the menu to make sure you are viewing your account. You can only edit your own username, not other players' usernames.

If you are on your own profile and still do not see the edit option, you may have changed your username within the last 30 days. Wait until the cooldown period ends, then try again. If the button still does not appear after 30 days have passed, try closing the app completely and opening it again — sometimes the app needs to refresh to show the button.

Using a computer instead if the app is not working

If the Roblox app on your phone is not letting you change your username, you can do it on a computer instead. Go to www.roblox.com in a web browser, log in, and click your username in the top right corner. Select "Settings" and then "Account". Click the pencil icon next to your username, type the new name, and click "Save". The change will sync to your phone app within a few minutes.

This method works if the app is glitching, if you prefer a larger screen, or if you want to double-check your new username before confirming it. The 30-day cooldown applies across both the app and the website, so changing your username on a computer counts toward your next allowed change date.

What to do if you forgot your password and cannot log in

If you cannot log into the Roblox app to change your username, tap "Forgot Password?" on the login screen. Enter your email address or username, and Roblox will send you a password reset link. Check your email (including spam folders), click the link, and create a new password. Then log back into the app and follow the steps above to change your username.

If you do not have access to the email address linked to your account, go to www.roblox.com on a computer and use the "Forgot Password?" option there. You may be asked to verify your identity by answering security questions or confirming your phone number before you can reset your password.

Frequently Asked Questions

Can I change my username back to my old one?

Yes, but only after 30 days have passed since you changed away from it. If you changed from "OldName" to "NewName" today, you cannot use "OldName" again until 30 days later. After that period, "OldName" becomes available for you to reclaim or for another player to take.

Do my friends see my username change right away?

Yes. Your new username appears to your friends and all other players when ready after you save it. They will see the new name in games, on your profile, and in chat. Your old username disappears from everywhere at the same moment.

What if my username contains a space or special character?

Roblox usernames cannot contain spaces, punctuation, or special characters. You can use letters (A–Z), numbers (0–9), and underscores only. If you try to use a space or symbol, the app will reject it and ask you to remove those characters.

Can I change my username if I have not played in a long time?

Yes. Your ability to change your username is not affected by how long it has been since you last played. As long as your account exists and you can log in, you can change your username once every 30 days, regardless of your activity history.