
Modrinth · Minecraft mod
Chunk Pregenerator
No more lag while exploring! Load chunks beforehand so you can enjoy exploration.
Quick answer
Which Chunk Pregenerator release should I use?
Chunk Pregenerator 1.1+mod targets 1.21.9, 1.21.10, 1.21.11 with Fabric, Forge, NeoForge. Installation on the client is optional. Installation on the dedicated server is optional. No extra mods listed for this file.
Where it goes
Is Chunk Pregenerator required on the client, server, or both?
Installation on the client is optional. Installation on the dedicated server is optional.
The source marks this as usable on both the client and server.
What else does Chunk Pregenerator 1.1+mod need?
1.1+mod. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Chunk Pregenerator without breaking your instance.
Built for Chunk Pregenerator 1.1+mod. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 1.1+mod. It targets 1.21.9, 1.21.10, 1.21.11 with Fabric, Forge, NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
Installation on the client is optional. Installation on the dedicated server is optional.
- 04
Pick the file you checked
Use the “Get this file” button beside 1.1+mod. It opens that exact file at the source.
About this project
What does Chunk Pregenerator add?
No more lag while exploring!
Load chunks beforehand so you can enjoy exploration.
This DataPack allows you to pregen chunks before you go exploring, so you won't experience lag from generating chunks during exploration.
Very useful for servers where players usually explore simultaneously.
USAGE:
Run /function help:chunk_pregenerator to get all info needed to use this DataPack.
There are 3 parameters you should know:
- Cx: x coordinate of the square's center
- Cy: y coordinate of the square's center
- R: square's radious in chunks (each chunk is 16 blocks long)
Here is an example:
Each '✅' is a chunk that will be loaded.
Each '❌' is a chunk that won't be loaded.
Running /function c_pre:start {Cx: 0, Cz: 0, R: 3}.
❌❌❌❌❌❌❌❌❌
❌✅✅✅✅✅✅✅❌
❌✅✅✅✅✅✅✅❌
❌✅✅✅✅✅✅✅❌
❌✅✅✅🟢✅✅✅❌
❌✅✅✅✅✅✅✅❌
❌✅✅✅✅✅✅✅❌
❌✅✅✅✅✅✅✅❌
❌❌❌❌❌❌❌❌❌\
SETTINGS:
You can change the maximum radius with the command below./function c_pre:settings/set_max_radius {R:250}
Change "250" to any number you want.
⚠️ NOTE: The more chunks you pregen, the more lag and time it will take.
Project description from Modrinth.
Pick your setup
Chunk Pregenerator by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.1.2
5 loader builds26.1.1
5 loader builds26.1
5 loader builds1.21.11
5 loader builds1.21.10
5 loader builds1.21.9
5 loader builds1.21.8
5 loader builds1.21.7
5 loader builds1.21.6
5 loader builds1.21.5
5 loader buildsCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Chunk Pregenerator versions and loaders
1.1+mod
chunk-pregenerator-1.1.jar
9 Jul 2026
1.1
Chunk Pregenerator DP (v1.1) [1.21.9 - 26.2].zip
9 Jul 2026
1.1+mod
chunk-pregenerator-1.1.jar
11 Dec 2025
1.1
Chunk Pregenerator DP (v1.1) [1.21.9 - 1.21.11].zip
11 Dec 2025
1.1+mod
chunk-pregenerator-1.1.jar
16 Nov 2025
1.1
Chunk Pregenerator (v1.1) [1.21.9 - 1.21.10].zip
16 Nov 2025
1.1+mod
chunk-pregenerator-1.1.jar
16 Nov 2025
1.1
Chunk Pregenerator (v1.1) [1.21.5 - 1.21.8].zip
16 Nov 2025
1.0+mod
chunk-pregenerator-1.0.jar
9 Oct 2025
1.0
Chunk Pregenerator (v1.0) [1.21.9 - 1.21.10].zip
9 Oct 2025
1.0+mod
chunk-pregenerator-1.0.jar
3 Oct 2025
1.0+mod
chunk-pregenerator-1.0.jar
3 Oct 2025
Looking for an older file? The official Modrinth project page is in Resources.