How do I install Chunk Loading Profiler?

Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. Download the .jar. Put it in the .minecraft/mods folder and launch that loader profile. Opens on CurseForge — not every file is mirrored on our own servers.

What Minecraft version does Chunk Loading Profiler work with?

The listing gives Minecraft 1.20.1, 1.21.1. This is the version stated by the author or source site, not something we verified ourselves.

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Chunk Loading Profiler

Java mod listed for Minecraft 1.20–1.21. Downloads from the MC Java Mods app on Android.

by lcy0x1 · on CurseForge

Discord: This mod profiles the time it takes for each chunk loading stage. To start profiling, run `/profilechunk <ticks to profile>`. The result will be…

Which build do you need?

This mod ships a separate file for every mod loader and every version of the game. Pick both, then download — the wrong build installs fine and then does nothing in the game.

Mod loader

Mod loader NeoForge2 builds
Mod loader Forge1 build

Minecraft version

Minecraft 1.21.1Newest
Minecraft 1.20.1

Minecraft 1.20.1Newest

⬇ Download for 1.21.1 · NeoForge ⬇ Download for 1.20.1 · NeoForge ⬇ Download for 1.20.1 · Forge

I don't know my version or loader

Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.

No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.

Open in MC Java Mods Get it on Google Play →

Discord: https://discord.gg/BCHNhsDMXz

This mod profiles the time it takes for each chunk loading stage. To start profiling, run `/profilechunk <ticks to profile>`.

The result will be saved in `logs/profiler/`. It will contain the following stages:

Initialization: The chunks load some basic stuff. Should be very fast
Biome: The chunks decide what biomes are present. The more biomes you havve, the slower this process will be.
Terrain: The chunk generates the basic blocks. Should take the longest
Surface: The biome-specific surface look. Details are attributable to mods.
Carver: Things that modifies the terrain. Such as caves and canyons
Decoration: Trees, ores, and structures. Details are attributable to mods.
Spawn: Add initial mobs
Finalization: The final processing. Should be very fast unless mods are doing stuff here.

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft versions listed: 1.20.1, 1.21.1
How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
Where to get it: Opens on CurseForge — not every file is mirrored on our own servers.

Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.

File checked by MCModsHub

Ships as chunkloadingprofiler-1.21.1+0.0.6.jar — drop this file into the mods folder
Download size: 31 KB
Download link checked 28 Sept 2026 — working

These come from our own check of the pack file, not from the source page.

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