Java account lookupMinecraft Username Checker and UUID Lookup
Enter a Java username to see whether an account uses it, with its exact capitalization, UUID and head. Paste a UUID instead to find the name that account uses today. Lookups go to Mojang's public profile API.
Check a username or look up a UUID
Enter a Java Edition username to see if it is taken, or paste a UUID to find its current name.
Use caseWhy use this tool
Each utility supports a practical task around finding, preparing or presenting a public Minecraft server.
- Check whether a Java Edition username is in use and see its exact capitalization.
- Copy the UUID with or without hyphens for whitelist.json, ops.json or plugin configs.
- Paste a UUID to find the name an account uses today.
Keep exploringRelated server lists
Find servers by game mode and compare their recent activity.
Good to knowUsername checker FAQ
Concise answers for players and server owners using this ServerBuddy utility.
Does not found mean I can take the name?
Not always. It means no Java account uses the name right now. Mojang can still block a name, and a name that was just changed or released may not be free to claim yet. The name change page on minecraft.net gives the final answer.
Does this check Bedrock gamertags?
No. Bedrock Edition uses Xbox gamertags, which are a separate system. This tool only checks Java Edition usernames.
What is a Minecraft UUID?
It is the permanent ID of a Java account. It stays the same when the player changes their name, which is why whitelist.json, ops.json, bans and most plugins store the UUID.
Can I see a player's old names?
No. Mojang removed name history from its public API in 2022, so the current name is the only one any lookup can show.