How to Upload Your Own World

To upload your own world, zip the world folder on your PC, upload it through Files in the panel (or via SFTP if it's over 1 GB), unpack it, and point Server Properties at the new world name. Most failed uploads come down to zipping the wrong folder or hitting the size limit. Both are easy to avoid once you know where to look.

Symptoms

• Server boots into a brand-new default world instead of your uploaded one
• Upload appears to finish but the world is missing chunks, or only spawn loads
• "Invalid archive" or the upload silently fails partway through
• Server won't start after uploading a world from a different modpack or version

Why this happens

Almost every failed world upload traces back to one of three things: the wrong folder got zipped (customers often compress just the region folder instead of the whole world), the zip exceeds the panel's 1 GB browser upload limit and needs SFTP instead, or the server's world name setting still points at the default map instead of your uploaded one. Large worlds (multi-GB) are also more prone to corruption during transfer, so using SFTP and double-checking the extracted files matters more the bigger your world gets.

How to fix it

1. On your PC, locate your world. For singleplayer, open Run (Win+R), type %appdata%\.minecraft, then go into the saves folder and find your world.
2. Right-click the entire world folder (not just the region subfolder) and compress it to a .zip.
3. Go to Files in the panel and drag-and-drop the zip in. If it's over roughly 1 GB, it will fail or hang: instead set an SFTP password in Account and upload it with a tool like WinSCP.
4. Once uploaded, use the panel's unarchive option on the zip to extract it into its own world folder.
5. Open Server Properties and set the world name field to exactly match your uploaded folder's name.
6. Restart the server from the top-right Restart button and confirm the correct world loads.

Always zip the whole world folder, top to bottom, a zip containing only region or level.dat will upload fine but won't actually load as a world.

If you're bringing a world over from a modpack (CurseForge, etc.), make sure your server is running the matching pack or Fabric/Forge version first, see How to Install a Modpack on Your Minecraft Server and How to Change Your Minecraft Server Version. For undersized servers trying to run heavy modpack worlds, check How Much RAM Does Your Modded Minecraft Server Need? before you upgrade.

Still stuck?

If your world uploads but chunks are missing, the transfer likely corrupted partway, re-zip and try SFTP again, ideally in smaller pieces if it's very large. If you're not sure why the server won't boot after your upload, check Minecraft Server Won't Start: How to Read the Crash Log, and once you're in, grab yourself permissions with How to Give Yourself Operator (OP) Permissions. For anything that doesn't match what you're seeing here, open a support ticket, screen-share is often the fastest way to sort out a stuck large-world upload.