Minecraft Player Lookup

Type the username into the search box and press Search. The player page shows the UUID dashed and trimmed, as an NBT int array and as the Most/Least long pair, each with a copy button. On your own server you can also run /list uuids in the console, or read the file names in the world’s playerdata folder.

A UUID is the unique 32-hex-digit identifier Mojang assigns to every account. Servers use it instead of the username because usernames can change but the UUID never does, so bans, permissions and player data stick to the right person.

They are the same 128-bit value written two ways. The dashed form groups the 32 hex digits as 8-4-4-4-12 and is what whitelist.json, ops.json, banned-players.json and most plugins expect. The trimmed form has no dashes and is what the Mojang API and some plugins use. Converting between them only adds or removes the dashes.

No. The UUID is tied to the account for life and survives any number of name changes, which is exactly why servers key whitelists, bans, ops and playerdata files to it. Only offline-mode UUIDs are derived from the name, so those do change on rename.

Since Java 1.16 the game stores UUIDs in NBT as four signed 32-bit integers. You need it for /data commands, data packs and NBT editors. Worlds from 1.15 and earlier stored the same value as two signed longs, UUIDMost and UUIDLeast, which the player page also shows.

Bedrock players have an Xbox XUID instead of a Mojang UUID. When they join a Java server through Geyser with Floodgate, Floodgate builds a UUID as new UUID(0, xuid): the first 64 bits are zero and the last 64 bits are the XUID, so it looks like 00000000-0000-0000-000X-XXXXXXXXXXXX with the XUID in hexadecimal. Paste it wherever the server wants a Java UUID, such as whitelist.json.

Use the Bedrock box on this page. Enter the Xbox gamertag (resolved through the GeyserMC API) or the XUID itself and you get the XUID in decimal and hex plus the Floodgate UUID. A Geyser server console also prints the XUID when the player joins.

Three common causes: the account has never uploaded a custom skin, so Mojang serves the default Steve or Alex; the skin was changed in the last few minutes and caches have not caught up; or the profile came from a fallback source without texture data. Search again a little later. On a server, missing skins usually mean online-mode=false or a proxy that does not forward skins.

No. With online-mode=false the server builds the UUID from the name (an MD5 of OfflinePlayer:<name>), so it differs from the Mojang UUID and changes if the name changes. Each player page shows the offline UUID for that name, and the offline UUID generator handles whole lists.

Copy the ready-made command from the player page (/whitelist add, /op, /ban <name> <reason>, /pardon, /kick) and run it in the server console. Whitelist, op and ban work for players who are not online. If the server is stopped, paste the whitelist.json, ops.json or banned-players.json entry into the file in the server folder instead.

Mojang shut down the public name-history API in September 2022, so no tool can list a player’s past usernames reliably. Only the current name resolves.

Yes. The head, bust and full-body render URLs are free to use on websites, Discord bots and dashboards. Pick 64, 128 or 256 pixels on the player page and copy the URL, or use the skin render API for any size.