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UUID Lookup

Look up Minecraft player UUIDs, usernames, and account information for plugins, permissions, and administration.

Notch's 3D full body render
Username:
Notch
Full UUID:
069a79f4-44e9-4726-a5be-f00e38f7d90d
Trimmed UUID:
069a79f444e94726a5bef00e38f7d90d

Frequently Asked Questions

Learn more about Minecraft UUID formats, Mojang player identifiers, and plugin permissions.

UUID Fundamentals

A UUID (Universally Unique Identifier) is a 128-bit number assigned by Mojang to uniquely identify a Minecraft player. Unlike usernames, which can be changed every 30 days, a player's UUID never changes.
A Full UUID contains hyphens formatted in 8-4-4-4-12 string segments (e.g., 069a79f4-44e9-4726-a5be-f00e38f7d90d). A Trimmed (or Raw) UUID removes these hyphens. Different Minecraft server plugins or database setups may require one specific format.

Server Administration & Plugins

UUIDs are heavily used in whitelist.json, banned-players.json, BungeeCord/Velocity proxy networks, LuckPerms permissions databases, and economy plugins to ensure player data remains tied to their account even if they change their username.
This tool queries Mojang's official API for online-mode Java Edition accounts. Offline-mode servers generate non-official offline UUIDs using MD5 hashing of player usernames.