Chunk Copy (Fabric)

Important: Development of this mod is currently on hold. The author does not plan to actively develop the project, although updates for future game versions are possible. The mod may conflict with some other modifications — for example, if the game freezes during automatic copying, this indicates incompatibility.

There are third-party tools with similar functionality that you can try if this mod doesn't meet your needs.

What Does Chunk Copy Do?

Chunk Copy is a client-side Fabric mod that allows transferring world chunks from multiplayer servers to singleplayer worlds. It uses the /chunkcopy command, which saves copied data to the mods/chunkcopy folder.

Important: Changes made to chunks cannot be undone. Be careful when using the command.

Command Syntax

• /chunkcopy (copy/paste) <file_name> [chunk_distance]
• /chunkcopy fill <chunk_distance> <block>
• /chunkcopy clear <chunk_distance>
• /chunkcopy autoCopy start [file_name]
• /chunkcopy autoCopy stop

Command Parameters

• file_name — name of the folder for saving chunk data (location: mods/chunkcopy/[file_name]/)
• chunk_distance — determines how far chunks will be copied/pasted (similar to render distance). Default value depends on render settings, maximum value is 8 (to avoid lag)
• block — block type for the fill command

How to Use the Mod

1. Copying: Connect to a server, go to the desired area and make sure chunks are loaded. Execute the copy command (e.g., /chunkcopy copy Test)

2. Pasting: Create a singleplayer world with cheats enabled (recommended: empty superflat world with void preset). Go to the same coordinates where the copied chunks were located on the server and execute the paste command (e.g., /chunkcopy paste Test)

Limitations

Due to Minecraft's architecture, client-side mods cannot access server-side data:

• World generation settings (seed, world type, etc.)
• Container contents (chests, hoppers)

To view chest contents, you need to open them manually. Temporary lag may occur when copying and pasting large areas.

Video Demonstration