Where to change your Java Edition username

You change your Minecraft Java Edition username through your Microsoft account, not through the game itself. When you own Java Edition, your username is tied to the Microsoft account you use to log in — changing one changes the other across all your devices.

The change happens on the Microsoft account website, takes about five minutes, and is free. Your new username appears the next time you launch the game after the change goes live, which usually happens within a few minutes but can take up to an hour.

Key Takeaways

  • You change your Java Edition username by signing into your Microsoft account on account.microsoft.com, not through the Minecraft launcher.
  • Your new username appears in-game the next time you launch after making the change, though it can take up to an hour to sync across Microsoft's servers.
  • You can change your username once every 30 days — if you changed it recently, you will see a countdown timer showing when you can change it again.
  • Your old username becomes available for someone else to claim after you change it, so choose carefully if you plan to switch back later.
  • Changing your username does not affect your game progress, worlds, or any items in your inventory.

Step-by-step: changing your username

Start by going to account.microsoft.com in your web browser and signing in with the Microsoft account linked to your Java Edition copy. If you are not sure which account that is, open the Minecraft launcher, look at the account name shown in the top right corner, and use that one.

Once you are signed in, look for "Your info" or "Account" in the left menu — the exact wording depends on which version of the Microsoft account page you see, but it is always near the top. Click it, then look for a section labeled "Gamertag" or "Username" (Microsoft uses both terms). Click "Edit" or "Change" next to it.

Type your new username in the box that appears. Microsoft will tell you right away if the name is already taken or if it breaks their naming rules — no spaces, no special characters except underscores, and between 3 and 16 characters long. Once you see a green checkmark or "available" message, click "Save" or "Confirm".

Close the browser tab and launch Minecraft. You may need to log out and log back in through the launcher for the change to appear, but usually it shows up automatically on your next launch. If your new name does not appear after an hour, restart your computer and try launching again.

What happens to your old username

Once you change your username, the old one becomes available for anyone else to claim. If you have been playing under the same name for years and want to keep it reserved, do not change it unless you are sure you will not want it back. There is no way to "hold" an old username or get it back once someone else takes it.

Your game progress, worlds, and inventory stay with your Microsoft account no matter what username you use. Changing the name does not erase anything — it is purely cosmetic from the game's perspective.

The 30-day waiting period

Microsoft limits username changes to once every 30 days. If you changed your username recently, you will see a countdown on the account page showing exactly when you can change it again. This rule applies even if you want to change back to an old username.

The timer starts from the moment you confirmed your last change, not from when you first tried to change it. If you made a typo and want to fix it when ready, you will have to wait the full 30 days — there is no exception process.

Troubleshooting: username not showing up in-game

If you changed your username but the old name still appears in Minecraft after an hour, try signing out of the launcher completely and signing back in. Click your account name in the top right of the launcher, select "Sign out", then sign back in with your Microsoft credentials.

If that does not work, restart your computer entirely. Microsoft's servers sometimes take longer than an hour to sync the change across all their systems, and a full restart clears your launcher's cached login information. After restarting, launch the game and check again.

If your username still has not changed after restarting and waiting another hour, check the Microsoft account page again to confirm the change actually saved. Sometimes a browser error can prevent the save from going through even though it looked like it worked. If the old username is still shown on the account page, try changing it again.

Changing your username on other Minecraft editions

Java Edition is the only version where you change your username through your Microsoft account. Bedrock Edition (the version on Windows 10, Xbox, mobile, and Nintendo Switch) uses a different system — you change your Bedrock username through the game's settings menu, and it is separate from your Microsoft account name.

If you own both Java and Bedrock, changing your Java username will not affect your Bedrock username, and vice versa. They are completely independent.

Frequently Asked Questions

Can I change my username back to what it was before?

Only if no one else has claimed it in the meantime. Once you change your username, the old one becomes available when ready. If you want it back and someone else has taken it, you cannot get it. You can change to a different new username instead, but you will have to wait 30 days from your last change.

Will my friends still be able to find me after I change my username?

Yes. Your friends can still join your worlds and servers using your new username. If they have you added as a friend, they will see your new name in their friends list automatically. The only thing that changes is what appears above your head in the game.

What if the username I want is already taken?

Microsoft will show you "not available" when you try to claim it. You will need to choose a different name. You cannot reserve a username or join a waitlist for one — you can only use names that are currently unclaimed.

Do I need to change my password when I change my username?

No. Your username and password are separate. Changing your username does not affect your password or your account security. You only need to change your password if you suspect someone has accessed your account without permission.

What if I changed my username by mistake?

You will have to wait 30 days before you can change it again. There is no way to undo a username change when ready. If someone else claims your old username during that 30 days, you will not be able to get it back.