OptiLithium
Java mod listed for Minecraft 1.19. Downloads from the MC Java Mods app on Android.
A modified version of lithium that makes it Compatible with OptiFabric (NOTE THIS MOD IS ONLY INTENDED FOR POJAVLAUNCHER OR REALLY LOW END PCS THAT NEED…
I don't know my version or loader
Lithium is a general-purpose optimization mod for Minecraft which works to improve a number of systems (game physics, mob AI, block ticking, etc) without changing any behavior. It works on both the client and server, and can be installed on servers without requiring clients to also have the mod. With the mod installed, you can see on average a 45% improvement to server tick times, resulting in a much leaner game.
Now with OptiLithium you're now able to use OptiFabric (Optifine) and lithium together.
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.19.4, 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 OptiLithium-fabric-mc1.19-0.8.1.jar — drop this file into the mods folder
- Download size: 492 KB
- Download link checked 25 Sept 2026 — working
These come from our own check of the pack file, not from the source page.