Mod and plugin

Pre-generates chunks, quickly and efficiently

Client or server OptimizationUtilityWorld Generation

Created2 years ago
Updated2 months ago


Pre-generates chunks, quickly, efficiently, and safely


  • Start one or several chunk generation tasks at the same time (if you want to leverage your CPU more)
  • Pause chunk generation tasks, saving them for later
  • Shows detailed information such as chunks processed, percent to completion, ETA, chunk processing rate, etc


You will need OP to use commands.

On a dedicated server, type op <username> from the server console. If using single player, enable cheats.


Task Management

chunky start Starts a new chunk generation task from the current selection

chunky pause Pauses the current chunk generation tasks, and saves progress

chunky continue Continues running current or saved chunk generation tasks

chunky cancel Stops the current chunk generation tasks, and cancels progress


chunky world [world] Sets the currently selected world

chunky shape <shape> Set the shape to generate

chunky center <x> <z> Sets the current center block location

chunky radius <radius> Sets the current radius

chunky worldborder Set the center and radius to match the world border in the selected world

chunky spawn Set the center to the spawn point

chunky corners <x1> <z1> <x2> <z2> Set the selection by corner coordinates

chunky pattern <pattern> Set the preferred generation pattern

chunky selection Display the current selection


chunky silent Toggle displaying update messages

chunky quiet <interval> Set the quiet interval in seconds for update messages

chunky trim Delete chunks outside selection


Generate chunks centered on 0,0 with a 1000 block radius in the overworld

chunky radius 1000
chunky start

Generate chunks centered on 100,-100 with a 5000 block radius in the nether

chunky center 100 -100
chunky radius 5000
chunky world the_nether
chunky start

Set a world border at 0, 0 with a 10000 block radius and generate chunks inside

worldborder center 0 0
worldborder set 20000
chunky worldborder
chunky start


Wiki Find up-to-date information about plugin features

Discord Visit the #chunky channel and ask questions

Crowdin Help translate the plugin into several languages

Donate Support the project if you've found it useful

bStats Check out some cool stats for the plugin

CodeMC Download the latest builds from this mirror

External resources

Project members



Technical information

Project ID