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:

Example of the GUI showing all the downloaded chunks as white squares, which ones from a previous download greyed out.

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](https://github.com/mircokroon/minecraft-world-downloader/issues/new/choose) or discussion on GitHub. For other inquiries, email: mircokroon.github@gmail.com If you want to support this project, you can [donate through GitHub](https://github.com/sponsors/mircokroon?frequency=one-time&amount=5)

mircokroon / minecraft-world-downloader

readme