Nether Portal
Linker
How Portal Linking Works
In Minecraft, the Nether is mathematically 8 times smaller than the Overworld on the X and Z axes (the Y axis/height remains exactly the same). This means traveling 1 block in the Nether is equivalent to traveling 8 blocks in the Overworld.
When you step into a portal, the game takes your current coordinates, divides or multiplies them by 8, and searches for an existing portal within a 128-block radius (in the Overworld) or a 16-block radius (in the Nether). If it doesn't find one, it generates a new one.
Why is my portal desynced?
Portal desync happens when the game tries to auto-generate a portal in the Nether, but the exact mathematically correct spot is inside a solid wall of Netherrack or floating over a lava ocean. The game will try to find a "safe" spot nearby to spawn the portal.
If this "safe" spot is too far from the mathematically perfect coordinates, walking back through it might cause the game to generate a brand new portal in the Overworld instead of linking to your original one! To fix this, you must break the auto-generated Nether portal, build a path to the exact coordinates calculated by our tool, and rebuild the portal there.