Disable Lighting

Disables all lighting calculations. This allows for a fullbright that also improves performance.

7.9K Downloads

fabricgame-mechanicsoptimizationutility

Configure a Compatible Minecraft Server

Screenshots

Disable Lighting makes the light level always 15

About this Mod

Unlike most other fullbright mods, Disable Lighting prevents your game from performing the lighting calculations entirely. This mod only runs on the client side.

If you want fullbright, you may as well make your computer not do the math for it. This has the side effect of making F3 always display Light level: 15, which is good since it's proof that it's working, but it can be bad if you still need to know how much light certain blocks have.

Note that, because the mod is so simple, you can attempt to run it on newer versions than Modrinth says it's designed for and it might work.

Source code on Github

Available Versions

Disable Lighting 1.1.0release

MC 26.2fabric

June 26, 2026

Disable Lighting 1.1.0release

MC 26.1, 26.1.1, 26.1.2fabric

March 26, 2026

Disable Lighting 1.0.0release

MC 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11fabric

September 20, 2025

How to Install Disable Lighting on Your Client

Install the Mod Loader Locally

Install fabric for your local Minecraft version.

Download the Matching File

Choose the Disable Lighting file for fabric and Minecraft 26.2.

Install Mod

Place the .jar file in your local .minecraft/mods folder and restart Minecraft. No server-side installation is required.

Compatibility

Mod Loaders

fabric

Minecraft Versions

26.2, 26.1.2, 26.1.1 (+13 more)

Server-side

✗ Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Does Disable Lighting need to be installed on the Minecraft server?

No. Modrinth marks Disable Lighting as unsupported on the server side. Install it only in your local Minecraft mods folder. Your server can remain unchanged unless the mod page lists an additional dependency.

Which version and loader does Disable Lighting require?

Use a file for fabric and your exact Minecraft version. Supported versions include 26.2, 26.1.2, 26.1.1. Files for different loaders are not interchangeable.

Disable Lighting is not working – what should I check?

First check the Minecraft version, loader version and required dependencies. Put the .jar file in your local .minecraft/mods folder and remove older duplicates. Because this mod is client-side, adding server RAM will not fix it.