World Downloader (1.21.4, 1.20.1) allows saving of a world on a remote server for singleplayer use. Mainly, this means that it can be used to backup your creations on a server. A Minecraft world downloader that works by intercepting & decrypting network traffic between the client and the server to read & save chunk data. Chunks can be sent back to the client to extend the render distance.

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:

Screenshots:

How to use:

For Mircokroon’s Version:

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. Additional settings can be changed in the other tabs of the settings window.

For Pokechu22’s Version:

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Join a server, and then pause and select “Download this world”. If this is your first time using the mod on that server, make sure to chose the appropriate multiworld mode — if the server *only* has 3 worlds (the overworld, nether, and end), multiworld is not needed, but if it has any more worlds or has worlds beyond those official worlds, multiworld is required or you may end up overwriting data from one world with that of another. After that, you may wish to pause again and click the 3 dots next to the download button, allowing you to further configure the download options for that world.

Once you’ve started the download, you need to travel around the world. World Downloader will only save chunks that you can see — if the game never loads it, it will not be saved. (However, once a chunk is loaded, the entire vertical section is saved.) For most servers, this is a range of 10 chunks (160 blocks), but it might be more or less depending on the server. You will need to open chests and some other blocks for them to be saved.

To make use of the mod, simply join a server, pause the game, and click “Start download”. If the server is multiworld (has more than the 3 vanilla minecraft dimensions), make sure to indicate as such. Travel around the world, making sure to load the parts you want to save, and opening any chests / other containers, and when you are done, pause, and click “Stop downloading”.

What World Downloader Saves:

World Downloader automatically saves some things, but other things must be manually saved, and still other things can’t be saved at all.

Automatically saved

  • World terrain
  • Entities (may need range configuration on some servers)
  • Most tile entities, such as signs and banners
  • Your inventory, position, and gamemode
  • The server spawnpoint

Manually saved

  • Chests and other containers — they must be opened to save
  • Villager trades (must be viewed to save)
  • The server seed — must be manually entered (will be filled in if /seed is performed, but you must be op)

Not saved at all

  • Your bed respawn
  • Other players
  • Jukebox contents

Important usage notes:

  • You need to open chests while downloading or their contents cannot be saved.
  • The mod can only save chunks which are sent by the server as you move around. If you see the chunk while downloading, then it’s saved! If you don’t move, it will likely only save 10 chunks (160 blocks) in each direction.
  • The seed is not saved automatically. You must be op to request the seed with the /seed command. World Downloader will pull the seed automatically from the server response.
  • When you click “stop download”, wait until the world is saved to disconnect. You will be notified in chat.
  • Some entities such as Fireworks will freeze the client if used while downloading. Known bug.

Requires:

Java

Java Runtime Environment

How to install:

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World Downloader (1.21.4, 1.20.1) Download Links

Other Versions:

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For Minecraft 1.5.2

Download from Server 1

For Minecraft 1.5.1

Download from Server 1

For Minecraft 1.5

Download from Server 1

For Minecraft 1.4.7/1.4.6

Download from Server 1

For Minecraft 1.4.5

Download from Server 1

For Minecraft 1.6.2

Download from Server 1

For Minecraft 1.6.4

Download from Server 1 – Download from Server 2

For Minecraft 1.7.2

Download from Server 1 – Download from Server 2

For Minecraft 1.8.0

Download from Server 1

Pokechu22’s Version

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For Minecraft 1.7.10

Liteloader version: Download from Server 1 – Download from Server 2

For Minecraft 1.9.4

Liteloader version: Download from Server 1

BaseEdit version: Download from Server 1

For Minecraft 1.10.2

Liteloader version: Download from Server 1

BaseEdit version: Download from Server 1

For Minecraft 1.11.2

Liteloader version: Download from Server 1

BaseEdit version: Download from Server 1

For Minecraft 1.12.2

Liteloader version: Download from Server 1 – Download from Server 2

BaseEdit version: Download from Server 1

For Minecraft 1.13.2

BaseEdit version: Download from Server 1

For Minecraft 1.14.4

Forge version: Download from Server 1

BaseEdit version: Download from Server 1

For Minecraft 1.15.2

Forge version: Download from Server 1

BaseEdit version: Download from Server 1

For Minecraft 1.16.5

Forge version: Download from Server 1 – Download from Server 2

BaseEdit version: Download from Server 1

For All Versions from Minecraft 1.12.2 to Minecraft 1.20.5

Windows Installer version (Exe file): Download from Server 1 – Download from Server 2

All Platforms version (Jar file): Download from Server 1 – Download from Server 2

Mircokroon’s Version

For All Versions from Minecraft 1.12.2 to Minecraft 1.19.2, 1.18.2

Windows Installer version (Exe file): Download from Server 1 – Download from Server 2

All Platforms version (Jar file): Download from Server 1 – Download from Server 2

For All Versions from Minecraft 1.12.2 to Minecraft 1.19.3

Windows Installer version (Exe file): Download from Server 1 – Download from Server 2

All Platforms version (Jar file): Download from Server 1 – Download from Server 2

For All Versions from Minecraft 1.12.2 to Minecraft 1.19.4

Windows Installer version (Exe file): Download from Server 1 – Download from Server 2

All Platforms version (Jar file): Download from Server 1 – Download from Server 2

For All Versions from Minecraft 1.12.2 to Minecraft 1.20.1

Windows Installer version (Exe file): Download from Server 1 – Download from Server 2

All Platforms version (Jar file): Download from Server 1 – Download from Server 2

For All Versions from Minecraft 1.12.2 to Minecraft 1.20.4

Windows Installer version (Exe file): Download from Server 1 – Download from Server 2

All Platforms version (Jar file): Download from Server 1 – Download from Server 2

For All Versions from Minecraft 1.12.2 to Minecraft 1.20.6

Windows Installer version (Exe file): Download from Server 1 – Download from Server 2

All Platforms version (Jar file): Download from Server 1 – Download from Server 2

For All Versions from Minecraft 1.12.2 to Minecraft 1.21.4, 1.21.3, 1.21.1, 1.21

Windows Installer version (Exe file): Download from Server 1 – Download from Server 2

All Platforms version (Jar file): Download from Server 1 – Download from Server 2

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