Minecraft : Player UUID Tool and Player Location Bar Color

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UUID Converter and Player Location Bar Color

A tool for fetching a player uuid, converting to different formats and also seeing a player location waypoint color. The Universally Unique Identifier (UUID) is a 128-bit long number that is used by Minecraft to track different entities, in this case players, but also mobs, projects and other in world things. It can be used in a number of commands, for example setting cat owners, or who angered the bees. Throughout Minecraft history there has been several formats and patterns in use, this tool helps to convert between different versions.

How UUIDs work in Minecraft

Every player and many entities in Minecraft are given a UUID, which acts like a permanent identity tag for that object. It is how the game keeps track of who owns a pet, which entity was targeted by a command, or which profile is linked to a skin or account.

Summon a wolf in Minecraft 1.16+ using an Int Array
/summon wolf ~ ~ ~ {Owner:[I;-2102157498,-914077367,-1517427860,-1141513663]}

Summon a wolf in Minecraft 1.16+ using a player name
/summon wolf ~ ~ ~ {Owner:aamche}

Summon a wolf in Minecraft 1.16 to 1.21.4 using player uuid
/summon wolf ~ ~ ~ {Owner:82b39f46-c984-4949-a58d-e36cbbf5e241}

Summon a wolf in Minecraft 1.15 and earlier using uuid
/summon wolf ~ ~ ~ {OwnerUUID:82b39f46-c984-4949-a58d-e36cbbf5e241}

Whether you are building commands, testing setups, or just trying to make sense of Minecraft data, this tool gives you a quick way to check and convert UUID values before you use them in-game.

How UUIDs determine the player waypoint color

A player's waypoint color isn't set any where, it is calculated from the player's uuid. Because the player's uuid can't be changed, the player's waypoint color can not be changed. A hash of the uuid is used to generate a 32-bit integer, the low 24 bits are read as three bytes for red, green and blue. That RGB color is normalized to a brightness to about 90%, so the color appears bright and not muted. If all that sounds too difficult, use the tool above to get the player's waypoint color.

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