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Migration Guide: Import World & Data from Aternos

Moving from Aternos to a premium server like Raznar is the right step for faster performance. But the data transfer process has to be done very carefully so that no builds or items go missing.

VERSION MUST BE THE SAME

Before you start, you MUST make sure of the following:

  1. Server Software: If you use Paper on Aternos, you also have to install Paper on Raznar.
  2. Minecraft Version: If Aternos is on version 1.20.1, Raznar must also be 1.20.1.
  3. Plugin Version: Make sure the plugins you download match that server version.

Don't try to import a world from a newer version into an older version server (Downgrade); your world data will be corrupted (Corrupt).

Step 1: Preparation on the Raznar Server​

Before grabbing the data, prepare the new "home" first.

  1. Open your Raznar panel.
  2. Make sure you have installed the Server Software (e.g., Paper/Spigot) that is EXACTLY THE SAME as what you use on Aternos.
  3. Turn off your Raznar server (status: Offline).

For a guide on how to change the version manually, check Version Change Guide.

Step 2: Retrieving the World Data (Aternos)​

We will download the World, Nether, and The End data from Aternos. The nice part is that Aternos already provides the files in .zip form, so you don't have to bother compressing them manually.

  1. Open your Aternos panel and go to the Worlds menu.
  2. You will see three sections: world, world_nether, and world_the_end.
  3. Click the blue button labeled Download on each of those sections.
  4. Now you have 3 zip files on your computer (for example: world.zip, world_nether.zip, world_the_end.zip).

Step 3: Retrieving the Plugin Data (Manual & Config)​

Because Aternos doesn't allow downloading .jar files directly, we need a combination of these two methods:

  1. Download the Plugin Files (.jar) - From the Internet:

    • Check your plugin list on Aternos.
    • Download the raw plugin file (.jar) from its original site (SpigotMC, Modrinth, or Bukkit).
    • IMPORTANT: Make sure the version is EXACTLY THE SAME as the one on your Aternos.

  2. Download the Configuration - From Aternos:

    • In the Aternos panel, go to the Files -> plugins menu.
    • You will see a Folder for each plugin (for example: the Essentials folder, the LuckPerms folder).
    • Click the Download button (the blue icon on the right) on that folder.
    • Aternos will automatically download it as a .zip file (for example: Essentials.zip). Do this for all the plugin folders you need.

Step 4: Upload to Raznar (Via SFTP)​

Now it's time to bring everything together on the Raznar server.

A. Upload World​

  1. Open the File Manager in the Raznar panel.
  2. Delete the default world folder (if any).
  3. Upload the world.zip file (and nether/end) from Aternos.
  4. Right-click the zip file -> Unarchive (Extract).
  5. Delete the zip file after extracting so it stays tidy.

B. Upload Plugins​

Go into the plugins folder on the Raznar server, then do these two things:

  1. Upload the .jar Files:

    • Upload all the .jar files you downloaded from the internet earlier.

  2. Upload & Extract the Configuration:

    • Upload the .zip configuration file you downloaded from Aternos earlier (for example: Essentials.zip).
    • Once uploaded, right-click the zip file -> Unarchive (Extract).
    • Make sure that after extraction, a folder with that plugin's name appears (for example: the Essentials folder).
    • Delete the leftover zip file so your plugins folder stays clean.

Step 5: Final Verification​

  1. Check again, make sure all .jar files are inside the plugins folder.
  2. Back up all the files we uploaded to the Raznar server to anticipate any mistakes.
  3. Make sure the world folders (world, world_nether, world_the_end) are in the main directory.
  4. Start your Raznar server.

Watch the Console. If the server, world, and plugin versions all match exactly, the server will start up smoothly and your old world is ready to be played again on the new server!