Chunky

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

Generate chunks in a circle centered at spawn in the nether with a 1000 block radius

Generate chunks inside a world border centered at 0,0 with a 10000 block radius

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

Partners

Chunky is partnered with Bloom Host who provide excellent high performance server hosting options. Click the banner below and use code CHUNKY for 25% off your server!

ABOUT THIS LISTING

This page describes Chunky by pop4959. The description and screenshots are the author's own, imported from their listing on Modrinth on 26 October 2026: https://modrinth.com/mod/chunky

Mythiq.net hosts no files for it. The download button goes straight to the release file on cdn.modrinth.com, so you are downloading from the author's own host, not from a copy of ours.

The download count, rating and comments on this page start at zero and count Mythiq.net only. The source's own figures are not copied here — they measure a different site, and a number that cannot be checked against our own ledger is not worth printing.

MOD LOADER

This release is built for Neoforge. A mod built for one loader will not load under another — Fabric mods do not run on Forge, and vice versa.

GAME VERSION

Built for Minecraft 26.3, 26.2, 26.1.2, 26.1.1, 26.1. Minecraft mods are tied to an exact version: a 1.21.4 build will refuse to load on 1.21.5.

DEPENDENCIES

Check the author's listing for required libraries before you start the game — a missing dependency shows up as a crash on launch, not as a warning.

1. Install Neoforge for the Minecraft version you play, if you have not already.

2. Download the .jar with the button on this page. Do not unzip it — a mod jar is installed as it is.

3. Put it in your mods folder:

Windows — %APPDATA%\.minecraft\mods

macOS — ~/Library/Application Support/minecraft/mods

Linux — ~/.minecraft/mods

4. Launch the game with the Neoforge profile selected.

ON A SERVER

Anything that changes world generation or gameplay has to be installed on the server as well as on every client. Client-side visual and interface mods do not.

UPDATING

Replace the old .jar rather than adding the new one beside it. Two versions of the same mod in the folder is a crash on launch.