LightLevel
Java mod listed for Minecraft 1.16–1.20. Downloads from the MC Java Mods app on Android.
LightLevel adds a toggleable overlay that displays information about the the light level reaching blocks with a solid top in a 16-block radius.
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LightLevel
LightLevel adds a toggleable (default: F9) overlay that displays information about the the light level reaching blocks with a solid top in a 16-block radius. LightLevel has two modes.
Requires Fabric API!
Normal mode
Normal mode displays the the block light level reaching the block. The color represents the possibility of hostile mobs spawning there:
- White: A mob cannot spawn.
- Yellow: A mob can spawn during the night.
- Red: A mob can always spawn.
LightLevel makes no attempt to determine if any condition other than light level is met for the block to be suitable for spawning mobs.

Extended mode
Extended mode shares the same color scheme as Normal mode, however, the information it displays is different. Each block displays two numbers, the block light (denoted by the square symbol), and the sky light (denoted by the sun symbol).
Extended mode is active when the debug overlay (F3) is shown.

Modpack usage
Use this mod or the code however you want (within the license).
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.20.4, 1.19.2, 1.19.1
- 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.
- Ships as lightlevel-1.16.2-2.0.0.jar — drop this file into the mods folder
- Download size: 14 KB
- Download link checked 14 Oct 2026 — working
These come from our own check of the pack file, not from the source page.