Convert a Minecraft world between Vanilla, Paper, and Spigot without losing the Nether, the End, or world settings.

Paths below assume level-name in server.properties is world. If yours is different, use that name instead.

Where each server stores dimensions

Server software	26.1 and newer	Before 26.1
Vanilla, Fabric, Forge, NeoForge	All in `world/dimensions/minecraft/`	Nether in `world/DIM-1`, End in `world/DIM1`
Paper and Paper forks	All in `world/dimensions/minecraft/`	Nether in `world_nether/DIM-1`, End in `world_the_end/DIM1`
Spigot and CraftBukkit	Nether in `world_nether/dimensions/minecraft/the_nether`, End in `world_the_end/dimensions/minecraft/the_end`	Nether in `world_nether/DIM-1`, End in `world_the_end/DIM1`

Switching to Paper or Spigot

Paper and Spigot convert the world for you on first start.

If you are moving to Spigot, rename any existing world_nether and world_the_end folders so Spigot creates fresh ones
In the sidebar, open Advanced > Server Actions and install the new software without wiping server files
Click Start and let the first startup finish in Console without interrupting it

Paper does not support converting a Paper world to Spigot. Stay on Paper or restore your backup instead.

Switching from Paper to Vanilla, Fabric, Forge, or NeoForge

26.1 and newer

In File Manager, open world/dimensions/minecraft/overworld/data/minecraft
Move game_rules.dat, scheduled_events.dat, wandering_trader.dat, weather.dat, and world_gen_settings.dat into world/data/minecraft (create the folder if needed)
Install the new software without wiping server files, then click Start

Skipping step 2 resets game rules, weather, and similar settings.

Before 26.1

Move world_nether/DIM-1 into world, and world_the_end/DIM1 into world
Install the new software without wiping server files, then click Start

If Vanilla already created its own world/DIM-1 or world/DIM1, rename those first.

Switching from Spigot to Vanilla, Fabric, Forge, or NeoForge

On 26.1 and newer, switch to Paper first, start it once, then follow the Paper 26.1 steps. Before 26.1, follow the Paper before 26.1 steps, since the layouts are the same.

Still Not Working?

If a dimension is missing after conversion, contact our support team with:

Your Server UUID
Your old and new server software versions
A screenshot of the world folders in the server root
The relevant Console messages from the first startup