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minecraft-world-downloader

A Minecraft world downloader that works as a proxy server between the client and the server to read & save chunk data. Download multiplayer worlds by connecting to them and walking around. Chunks can be sent back to the client to extend the render distance.

Downloads

Windows launcher: world-downloader-launcher.exe

Latest cross-platform jar (command-line support): world-downloader.jar

Basic usage

Download the latest release and run it. Enter the server address in the address field and press start.

Instead of connecting to the server itself, connect to localhost in Minecraft to start downloading the world.

If you run into any problems, check the FAQ page for some common issues.

Features

  • Requires no client modifications and as such works with every game client, vanilla or not
  • Automatically merge into previous downloads or existing worlds
  • Save chests and other inventories by opening them
  • Extend the client's render distance by sending chunks downloaded previously back to the client
  • Overview map of chunks that have been saved:

Requirements

  • Java 21 or higher
  • Minecraft version 1.12.2+ // 1.13.2+ // 1.14.1+ // 1.15.2+ // 1.16.2+ // 1.17+ // 1.18+ // 1.19.3+ // 1.20+ // 1.21+

Command-line

Download the cross-platform world-downloader.jar and run it using the command-line:

java -jar world-downloader.jar

Arguments can be specified to change the behaviour of the downloader. Running with --help shows all the available commands.

java -jar world-downloader.jar --help

The GUI can be disabled by including the --no-gui option, and specifying the server address:

java -jar world-downloader.jar --no-gui -s address.to.server.com

Running on Linux

To easily download the latest release using the terminal, the following commands can be used:

wget https://github.com/mircokroon/minecraft-world-downloader/releases/latest/download/world-downloader.jar
java -jar world-downloader.jar -s address.to.server.com

When running headless Java, the GUI should be disabled by including the GUI option:

java -jar world-downloader.jar -s address.to.server.com --no-gui

Some linux distributions may require -Djdk.gtk.version=2 for the GUI to work:

java -Djdk.gtk.version=2 -jar world-downloader.jar

Building from source

Dependencies on linux

debian/ubuntu

sudo apt-get install default-jdk maven

arch/manjaro

sudo pacman -S --needed jdk-openjdk maven
Build project to executable jar file

Building the project manually can be done using Maven:

git clone https://github.com/mircokroon/minecraft-world-downloader
cd minecraft-world-downloader
mvn package
java -jar ./target/world-downloader.jar -s address.to.server.com

Contact

Contact information

For problems, bugs, feature requests and questions about how to use the application, please open an issue or discussion on GitHub.

For other inquiries, email: mircokroon.github@gmail.com

If you want to support this project, you can donate through GitHub