Realms

Minecraft Realms is an official subscription-based server hosting service that allows players to create and manage their own private Minecraft servers. Hosted by Mojang Studios, Realms provides a simple way to create servers and allows the owner to manage them from inside the game, without knowledge of hosting on the internet. Minecraft Realms also provides additional features such as player-made maps or Realms Hub. Only one player needs to own the subscription, while other players can be invited to a Realm for free. Realms are not intended for large public servers, but for groups of friends or as a family server.[1]

Realms internally uses Bedrock Dedicated Server on Bedrock Edition,[2] and server.jar on Java Edition.[note 1]

Realms is a service that can be used only by players who meet these requirements:[3]