Upload your own world to a server

1. 1Find the world on your computer. Singleplayer worlds are in your Minecraft saves folder; in the launcher, open Installations, hover your installation and choose the folder icon.
2. 2Close Minecraft so the world isn't in use.
3. 3Compress the world's folder into a .zip file. On Windows, right-click it and choose Compress to ZIP file. On a Mac, right-click and choose Compress.

A world folder has a level.dat file directly inside it. If you open your zip and see another folder first, that's fine; you'll rename it on the server.

1. 1Stop the server from the dashboard. Replacing a world while it's running breaks it.
2. 2In the Files tab, delete or rename the existing world, world_nether and world_the_end folders. Rename them if you might want them back.
3. 3Choose Upload and pick your .zip.
4. 4Select the uploaded file and choose Extract.
5. 5Rename the extracted folder to world, so it matches level-name in server.properties. Then delete the .zip.
6. 6Start the server.

On its first start Paper notices the Nether and End inside the singleplayer folder and moves them into world_nether and world_the_end on its own. The console shows a short migration message when it does.

• A brand new world appeared. The folder isn't named what level-name says, or level.dat is one folder deeper than it should be. Stop the server and check.
• The world loads but your items are gone. Singleplayer stores the host's inventory differently from a server. Everyone keeps their items except the person whose world it was; use /give or a creative trip to put them back.
• Chunks look reset or the server crashes. The world is from a newer Minecraft version than the server. Change the version in the Settings tab to match.
• The upload is too big. A free server has 8 GB of storage. Very large worlds may not fit, and long uploads can time out. Trim unused areas with a tool like MCA Selector first.