How to Upload a Minecraft World to Your Server

Zip the world folder, stop the server, delete the old world folder, upload the zip, decompress it in /home/container and start the server.

Run the server on the same Minecraft version the world was last played on, or newer. Opening a world on an older version can corrupt it. If the current world matters, make a backup in Backups first.

1. Zip your world

Singleplayer worlds live in the saves folder:

Rename the world's folder to world, then zip it. The server loads whatever folder level-name in server.properties names, and that's world by default.

2. Replace the world

1. Stop the server in the Crunchy.Host panel.
2. In Files, delete the world folder. On Paper, Purpur and Spigot, also delete world_nether and world_the_end, or the old dimensions stay attached.
3. Upload the zip to /home/container. For worlds over a gigabyte, SFTP is more reliable than the browser.
4. Select the zip, choose Decompress, then delete the zip.
5. Start the server.

If a new world generates instead

The server didn't find level.dat. It has to be at /home/container/world/level.dat. Zips often extract into a nested world/world/; move the contents up one level. If you kept a different folder name, set level-name to match it.

Datapacks travel inside the world folder. Mods and plugins don't, so install the same ones on the server.