Minecraft Username Checker

Minecraft: Java Edition gives every player one unique profile name, the name other players see in game and on servers. Bedrock Edition uses your Xbox gamertag instead. Type a Java name below and we ask Mojang's official profile lookup whether a player already has it.

Minecraft username rules

Length	Java profile names can be up to 16 characters.
Allowed characters	Minecraft's help center does not list them; the name change page tells you when a name is not accepted.
Change frequency	Once every 30 days. You can go back to your old name after waiting 30 days.
Community Standards	A name that breaks the Minecraft Community Standards can be banned and removed from use by you and every other player.
Bedrock Edition	Bedrock uses your Xbox gamertag, which has its own rules. Use the Xbox gamertag checker for that.

Sources: Minecraft Help: view or change your in-game profile name, Minecraft Help: update banned skins or usernames, Minecraft Help: social features and child safety. Last reviewed 2026-10-14. Platforms change their rules; the linked help pages are the final word.

How to check a Minecraft username

Enter the Java name. Anything over 16 characters cannot be a Java profile name.
We ask Mojang's public profile API for that name. It answers with the player's ID when the name is in use and with a "couldn't find any profile" error when it is not. It is the official source, so the answer is usually clear.
A name someone just gave up may not be claimable straight away even if the lookup finds nobody, and a name banned under the Community Standards stays blocked for everyone.
The final test is the Change Profile Name page on minecraft.net, which tells you whether you can take the name.

Minecraft username taken? What you can do

Add an underscore or a short number, or combine two words: mia_builds, miacrafts.
Wait and check again later. Players can change names every 30 days, so popular names do move.
Do not buy a name from another player. Minecraft accounts belong to Microsoft accounts, and trading them is against the rules.
If you play Bedrock, your gamertag is what counts there, so check it with the Xbox gamertag checker instead.

How to change your Minecraft username

Sign in at minecraft.net and open your profile page (All Games).
Choose Change Profile Name, then Change Your Profile Name.
Type the new name and confirm. You cannot change it again for 30 days.
Let your server friends know. Some servers store whitelists and ranks by name and may need updating.

Reserved and restricted names

Minecraft does not publish a list of reserved names. Its help center says a name that does not comply with the Community Standards may be banned and removed from use by you and all other users, and that you then have to pick a new one.

Tips

Short Java names are rare and keep their appeal, so check yours here before you build a following around a longer one.
Minecraft lets you return to your old name after 30 days, so a rename is not a one-way door if nobody grabs it first.
Parents: names follow the Community Standards and can be banned, so avoid real names or personal details in a child's profile name.

Frequently asked questions

How long can a Minecraft username be?

Java profile names can be up to 16 characters, according to Minecraft's help center.

How often can I change my Minecraft name?

Once every 30 days. You can go back to your previous name after the 30 days pass, if nobody else has taken it.

Does this check work for Bedrock Edition?

No. Bedrock uses your Xbox gamertag. This page checks Java profile names through Mojang's lookup.

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WhatsMyName Apps is an independent tool, not affiliated with or endorsed by Minecraft, the WhatsMyName project, Sherlock or Maigret. Results are leads to verify.