
Chunky
Pre-generates chunks, quickly and efficiently
About this Mod
Chunky
Pre-generates chunks, quickly, efficiently, and safely
Features
- 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
- Custom world shapes, and optional world border support with ChunkyBorder installed
Permissions
In order to use chunky you will need to either:
- Be an operator on a dedicated server. To become an operator, someone with access to the server must run the command op
from the server console. - Be in a singleplayer world. In older versions of chunky you may also need to enable cheats for the world. This can be done during world creation, or by using the "Open to LAN" button.
Commands
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
Selection
chunky world [world] Sets the currently selected world
chunky shape
chunky center [
chunky 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
chunky pattern
chunky selection Display the current selection
Miscellaneous
chunky silent Toggle displaying update messages
chunky quiet
chunky progress Display pre-generation progress in-game for all tasks
chunky reload Reloads the configuration
chunky trim Delete chunks outside selection
Examples
Generate chunks in a square centered at 0,0 in the overworld with a 1000 block radius
chunky radius 1000
chunky start
Generate chunks in a circle centered at spawn in the nether with a 1000 block radius
chunky world the_nether
chunky shape circle
chunky spawn
chunky radius 1000
chunky start
Generate chunks inside a world border centered at 0,0 with a 10000 block radius
worldborder center 0 0
worldborder set 20000
chunky worldborder
chunky start
Links
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
ChunkyBorder Custom world border addon
Screenshots
Example pre-generated square world with radius 2000
Generating 3 worlds simultaneously using a Ryzen 3700X processor + 16GB RAM
Partner
Available Versions
How to Install Chunky on Your Server
Order Server
Order a Minecraft Java server with at least 4 GB RAM (6 GB recommended).
Set bukkit Loader
In the panel under "Egg", select the bukkit loader and matching Minecraft version (26.2).
Install Mod
Open the mod browser in the dashboard and search for "Chunky". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
26.2, 26.1.2, 26.1.1 (+45 more)
Server-side
~ OptionalRecommended RAM
6 GB(min. 4 GB)Frequently Asked Questions
Chunky server crashes on startup – what to do?
Most common cause: wrong bukkit version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 4 GB RAM is allocated and the loader matches the mod version (26.2). You can switch loaders with one click in the panel.
Is Chunky compatible with bukkit and fabric and folia and forge and neoforge and paper and spigot and sponge?
Chunky officially supports bukkit, fabric, folia, forge, neoforge, paper, spigot, sponge for Minecraft 26.2, 26.1.2, 26.1.1. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Chunky – how to optimize performance?
Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if Chunky 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.
Similar Mods
Rent Modded Server
Install Chunky with just one click on your server.