Guides / Updated 2026-09-30
How to Import a Minecraft World in Java Edition
Install a downloaded Minecraft Java world: extract the ZIP, find the saves folder, check level.dat, and troubleshoot a missing world.
Quick answer: Extract the Java world ZIP, copy the folder
containing
level.dat into the correct installation’s saves
directory, then open that installation’s single-player world list.
Before you start
Use a Java Edition world, not a Bedrock MCWORLD file. A download ending in ZIP may contain a world, a resource pack or several files; check its contents rather than relying on the filename.
ArnisWeb generates Java worlds as ZIP world folders. Close the game before copying a world, keep a backup of your existing saves, and use the game version and any mods or datapacks required by the world creator.
1. Extract the downloaded world ZIP
Save the complete download to a folder you can find again, then extract it using your system's archive tool. Do not copy the unopened ZIP directly into saves.
Open the extracted folders until you find level.dat. Keep the files alongside it together. A common mistake is copying the outer download folder, leaving the actual world one level too deep. The folder that directly contains level.dat is the one to copy.
saves/
My World/
level.dat
region/
...other world files
This is a simplified directory example. A world can contain additional files; do not delete them to make it match the example.
2. Find your Java saves directory
These are common default locations. Paste the Windows path into File Explorer, use Finder's Go to Folder on macOS, or open the path in your Linux file manager.
%APPDATA%\.minecraft\saves~/Library/Application Support/minecraft/saves~/.minecraft/savesCustom launchers and instances may use a different directory. Check the game directory for the installation you actually launch, then open its saves folder. If you are unsure, create a clearly named temporary world in that installation, close the game, and locate that world before copying anything.
3. Copy the world and open Minecraft
Copy the entire world folder into saves. If a folder with the same name already exists, stop and use a distinct folder name instead of overwriting a save. Keep the downloaded original as a backup.
Launch the intended Java installation and open the single-player world list. Look for the world's saved display name, which can differ from its folder name. Select the imported world and check the spawn area and expected terrain. If Minecraft warns about a version conversion, work on a copy and confirm compatibility before proceeding.
World not showing up?
| Symptom | What to check |
|---|---|
| No world in the list | Check for an extra nested folder and confirm level.dat is directly inside the world folder. |
| Visible in another installation | Check the game directory of the launcher profile you are using. |
| Archive will not extract | Download the complete file again; do not use a partial or expired download. |
| World opens with errors | Check the required game version, mods and datapacks. Keep the original backup. |
Worlds, map packs and resource packs
“Minecraft map” often means a playable world, but “map pack” can be ambiguous. Resource packs change how the game looks or sounds; datapacks change certain game behavior. Neither belongs in saves as if it were a standalone world. Follow the package author's instructions.
A Bedrock .mcworld is not a Java save. Renaming its extension does not convert the world. See the Bedrock import guide if you use that edition.
Create a world from a real place
Want to import a place you know? Use the real-world map generator or choose a small city area. Generate a Java world, keep the downloaded ZIP, and use this guide to place it in the correct installation.
For upstream Arnis output details, consult the Arnis project repository.