World Downloader

World Downloader

A simple mod to download worlds from multiplayer servers

by
52.4K Downloads
fabricgame-mechanicsutility
Rent Server with this Mod

About this Mod

A simple mod that allows you to download Minecraft worlds from servers

Simply load the chunks you want to download (unloading is fine, the chunks automatically get saved after getting loaded once) and press the keybind to download the world (O by default). This may cause a bit of lag, especially if you're downloading a large part of the world. You can view progress in the logs.

Go to .minecraft and find a folder named "downloaded_world", copy that into the "saves" folder, and play your minecraft world!

Note: You always spawn at 0,0 in the downloaded world, you have to go to the coordinates of the chunks you downloaded (for example you downloaded chunks in 0, 0, -1000, now you have to go to 0, 0, -1000 in the downloaded world to view the downloaded chunks)

This mod doesn't download entities nor container data (like items in chests, furnaces etc...) (maybe in the near future)

this mod requires mcaselector which you can get from here

Available Versions

World Downloader 1.0.0release
MC 1.21.9, 1.21.10fabric
October 16, 2025
World Downloader 1.0.0-1.21.5release
MC 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5fabric
August 22, 2025
World Downloader 1.0.0-1.21.6.release
MC 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8fabric
July 30, 2025

How to Install World Downloader on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.10).

3

Install Mod

Open the mod browser in the dashboard and search for "World Downloader". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.10, 1.21.9, 1.21.8 (+8 more)

Server-side

~ Optional

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

World Downloader server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.10). You can switch loaders with one click in the panel.

Is World Downloader compatible with fabric?

World Downloader officially supports fabric for Minecraft 1.21.10, 1.21.9, 1.21.8. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with World Downloader – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if World Downloader consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.

Rent Modded Server

Install World Downloader with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
MIT License
Server-side
Optional

Supported Versions

1.21.101.21.91.21.81.21.71.21.61.21.51.21.41.21.31.21.21.21.1+1 more