Your username is set when you create your account

When you sign up for Roblox, you choose a username at that moment — it becomes your permanent display name across the platform. You cannot change it later without paying Robux, the in-game currency. The username you pick during account creation is what other players see, what appears on your profile, and what people use to find and message you.

If you are creating a new account, you will enter your desired username on the sign-up page before you finish setting up your password and email. Roblox checks when ready whether that name is already taken. If it is, you will see a message telling you the username is unavailable, and you can try a different one right then.

Key Takeaways

  • You choose your username when you first create your Roblox account, and it cannot be changed for free.
  • Roblox checks whether a username is available the moment you type it during sign-up.
  • If your desired username is taken, you can add numbers or letters to make a variation that is still available.
  • Changing your username after account creation costs Robux, which you must purchase with real money.
  • Your username must be between 3 and 20 characters and cannot contain certain symbols or profanity.

What makes a valid Roblox username

Roblox has rules about what characters and words you can use. Your username must be between 3 and 20 characters long. You can use letters (both uppercase and lowercase), numbers, and underscores. You cannot use spaces, periods, hyphens, or most other symbols.

The platform also blocks usernames that contain profanity, slurs, or references to illegal activity. If you try to create an account with a name that violates these rules, the sign-up page will reject it and ask you to choose something else. There is no way around this — you straightforward have to pick a different name.

Checking if a username is available before you sign up

If you want to check whether a specific username exists before you create an account, you can search for it on the Roblox website. Go to the main Roblox page, use the search bar at the top, and type the username you are interested in. If a player with that name exists, their profile will appear in the results. If nothing comes up, the name may be available — though the only way to know for certain is to try creating an account with it.

Keep in mind that a username being unavailable in search does not always mean it is taken by an active player. Roblox keeps usernames reserved even if the account has been inactive for a long time, so an old or abandoned account can still block you from using a name you want.

Adding numbers or variations to get your preferred name

If your first choice is taken, the easiest solution is to add numbers to the end or beginning. For example, if "Alex" is taken, you could try "Alex123" or "123Alex". You can also add underscores: "Alex_123" or "A_lex". Many players use birth years, lucky numbers, or just sequential digits to create a unique variation of their preferred name.

Another approach is to swap similar-looking letters or numbers — for instance, using "0" (zero) instead of "O" (the letter), or "1" (one) instead of "l" (lowercase L). These look similar to other players but are technically different characters, which can help you claim a name that is close to what you wanted.

Changing your username after account creation

Once your account is created, you cannot change your username without spending Robux. The first username change costs 1,000 Robux. Subsequent changes cost 1,000 Robux each time. Robux is purchased with real money — the exact dollar amount varies depending on how many Robux you buy at once, but 1,000 Robux typically costs between $10 and $12 USD.

To change your username, log into your account, go to your account settings, and look for the option to change your username. You will be prompted to enter your new desired name, and Roblox will check availability just as it did during sign-up. If the name is available and you have enough Robux, the change will process when ready.

Recovering or finding your own username

If you created a Roblox account but cannot remember your username, you can recover it by logging in with your email address and password instead. Once you are logged in, your username will be displayed on your profile page and in the top-right corner of the screen. You can also check your email — Roblox sends a confirmation email when you create an account, and that email often includes your username.

If you have lost access to your email as well, you can contact Roblox support through their help page. You will need to provide information that proves you own the account, such as the email address you used to sign up, the date you created it, or details about games you have played or items you own.

Frequently Asked Questions

Can I use spaces or special characters in my username?

No. Roblox usernames can only contain letters, numbers, and underscores. Spaces, periods, hyphens, and other symbols are not allowed. If you try to use them during sign-up, the system will reject the name and ask you to choose a different one.

What if someone else has the username I want?

You will need to pick a variation. Adding numbers, underscores, or slightly different spelling are common solutions. You can also try searching for the name first to confirm it is taken, then decide whether a similar variation works for you.

How much does it cost to change my username?

The first username change costs 1,000 Robux, which you must purchase with real money. The exact dollar cost varies by region and how many Robux you buy, but 1,000 Robux typically costs around $10 to $12 USD. Each additional change also costs 1,000 Robux.

Can I see what username I chose if I forgot it?

Yes. Log into your account with your email and password, then look at your profile page or the top-right corner of the screen — your username will be displayed there. If you cannot log in, check the confirmation email Roblox sent when you created the account.

Is there a way to change my username for free?

No. Roblox charges Robux for every username change after the initial account creation. There is no free option, and no way to change it without purchasing Robux.