Rendering, rebuilt.
Lithium improves Minecraft’s rendering engine so movement feels smoother and busy scenes stay responsive.
A lighter way to play
Lithium mod
for Minecraft.
Lithium is a free Minecraft performance mod that improves frame pacing, reduces stutter, and helps Minecraft feel smoother without changing the way you play.
For Minecraft 26.2-1.21 · Fabric API required
LIGHTTHE LOAD
Why use the Lithium mod?
Lithium Minecraft
performance.
The Lithium mod for Minecraft optimizes the game at its foundation, helping worlds load and play more smoothly without changing Minecraft’s visuals. It is a practical choice for players looking for a lightweight Minecraft performance mod.
Made for Fabric.
Install it alongside Fabric API, then keep the rest of your mod setup exactly as you like it.
Shaders with Iris.
Use Iris Shaders with Lithium when you want shader packs without giving up the performance foundation.
Before you launch
A better Minecraft setup starts here.
Fabric APIRequired to run Lithium
Iris ShadersOptional — for shader support
Official release
Lithium 26.2-1.21
Download the matching Fabric mod file for Minecraft 1.21. This page only serves the version shown below so you can verify what you are installing.
The Lithium mod for Minecraft is a free, open-source performance mod that improves frame pacing, reduces micro-stutter, and makes the game feel more responsive by optimizing game systems.