Chunky

Chunky

Pre-generates chunks, quickly and efficiently

by
16.7M Downloads
bukkitfabricfoliaforgeneoforgepaperspigotspongeoptimizationutilityworldgen
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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 Set the shape to generate


chunky center [ ] Sets the current center block location


chunky 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 Set the selection by corner coordinates


chunky pattern Set the preferred generation pattern


chunky selection Display the current selection

Miscellaneous

chunky silent Toggle displaying update messages


chunky quiet Set the quiet interval in seconds for update messages


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

Chunky 1.5.4release
MC 26.1, 26.1.1, 26.1.2, 26.2neoforge
July 23, 2026
Chunky 1.5.4release
MC 26.1, 26.1.1, 26.1.2, 26.2forge
July 23, 2026
Chunky 1.5.3release
MC 26.1, 26.1.1, 26.1.2, 26.2fabric
May 4, 2026
Chunky 1.5.3release
MC 26.1, 26.1.1, 26.1.2neoforge
May 4, 2026
Chunky 1.5.3release
MC 26.1, 26.1.1, 26.1.2forge
May 4, 2026

How to Install Chunky on Your Server

1

Order Server

Order a Minecraft Java server with at least 4 GB RAM (6 GB recommended).

2

Set bukkit Loader

In the panel under "Egg", select the bukkit loader and matching Minecraft version (26.2).

3

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

bukkitfabricfoliaforgeneoforgepaperspigotsponge

Minecraft Versions

26.2, 26.1.2, 26.1.1 (+45 more)

Server-side

~ Optional

Recommended 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.

Rent Modded Server

Install Chunky with just one click on your server.

Recommended RAM
6 GBfrom €7.800000000000001/mo
Minimum 4 GB | per 5 players
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
GNU General Public License v3.0 only
Server-side
Optional

Supported Versions

26.226.1.226.1.126.11.21.111.21.101.21.91.21.81.21.71.21.6+38 more