CoordUnleash

Vanilla Minecraft clamps teleport destinations to a fixed coordinate range. CoordUnleash removes that clamp, so the tp command can send a player billions or quadrillions of blocks away without the game stopping the command. The mod also disables the physical collision clamping applied at the world border, letting players move past the usual edge of the map.

The mod is aimed at players who want to explore past the vanilla limit, and at server owners running extreme-distance worlds. It is built with MixinExtras WrapOperation, which lets it coexist with other mods that alter the same code. The author notes that CoordUnleash handles the command parser limits while FartherLands handles chunk memory and generation at those distances, so both are recommended together. CoordUnleash requires Fabric API and is published for Fabric 26.1.2 – 26.2, under the MIT License; it is not open source in the sense of a copyleft license. Only the server must run it, while players may leave it out.