Modscraper Modscraper Minecraft

Sort By

Type

Content

Tags

Lithium (Fabric/NeoForge) logo

Lithium (Fabric/NeoForge)

Mod

by JellySquid

An optimization mod for Minecraft which improves server performance significantly.

Type

Mod

CurseForge Downloads

102,081,804

CurseForge ID

360438

Modrinth Downloads

141,522,378

Modrinth ID

gvQqBUqZ

Last Updated

Nov 7, 2026

Description

Lithium is a modern, general-purpose optimization mod for Minecraft which works to improve a number of systems (game physics, mob AI, block ticking, etc) with the goal of not changing any vanilla mechanics.


The mod works on both the client and server, and can be installed on servers without requiring clients to also have the mod (and vice versa.)


For multiplayer servers, administrators can expect a sizeable improvement to tick times, allowing their hardware to support more loaded entities, chunks, and players. Even in single-player, Lithium helps to improve performance by optimizing the internal game server, which is used for "ticking" the world. This can free up your computer's processor to focus on other tasks, resulting in improved frame rates and increased responsiveness.


The strict goal of maintaining exact behavior with vanilla makes Lithium suitable for almost any Minecraft server running Fabric, even for highly complex gameplay scenarios and creations. In fact, our continued insistence towards not changing vanilla gameplay has even led to the mod being officially allowed in Minecraft speedrunning.


Installation

Make sure you have the latest version of Fabric Loader present and then simply drop the mod into your mods folder. No other mods or additional setup (not even Fabric API!) is required. You do not need to create new worlds in order to take advantage of the mod.


While you're at it, you may want to check out Sodium, which improves rendering performance.


Configuration

Lithium makes use of an semi-unusual configuration system which allows you to enable or completely disable patches the mod applies. This system allows fine-grained control over what code in Minecraft is modified by Lithium, and as such, can be used to completely eliminate bugs or mod incompatibilities introduced by the mod.


For more information, please read the wiki entry on modifying your configuration file.


Please note: An empty configuration file is perfectly normal and just means you want to use the default options, which are already set up out of the box for the best performance the mod can offer.


Reporting Issues

Please use the issue tracker linked at the top of the page to report bugs, crashes, and other issues.

Compatibility

Mod Loaders

Fabric Neoforge Quilt

Game Versions

1.16.2 1.16.3 1.16.4 1.16.5 1.17 1.17.1 1.18 1.18.1 1.18.2 1.19 +28 more

Recommended Gear

Affiliate

Hardware and extras that pair well with this mod.

Mini PC for self-hosting

Mini PC for Self-Hosting

A low-power box that can sit in a cupboard and run a modded server around the clock.

View on Amazon →

As an Amazon Associate I earn from qualifying purchases.

Similar Mods

Just Enough Items (JEI)

Just Enough Items (JEI)

View Items and Recipes

Mod 729,652,572
Cloth Config API (Fabric/Forge/NeoForge)

Cloth Config API (Fabric/Forge/NeoForge)

Config Screen API for Minecraft

Mod 570,982,654
Mouse Tweaks

Mouse Tweaks

Enhances inventory management by adding various functions to the mouse buttons.

Mod 550,364,463
Fabric API

Fabric API

Core API library for the Fabric toolchain

Mod 525,687,367
AppleSkin

AppleSkin

Adds some useful information about food/hunger to the HUD

Mod 520,874,831
GeckoLib

GeckoLib

A 3D animation library for entities, blocks, items, armor, and more!

Mod 505,394,618 354.7K this week

Included in Modpacks (3,812)

Show fewer
TNP Limitless 8 - LL8 TNP Limitless 8 - LL8 Craft to Exile [Harmony] Craft to Exile [Harmony] Dreamcraft [FABRIC] Dreamcraft [FABRIC] KEO RPG optimized KEO RPG optimized Medieval MC [NEOFORGE] MMC5 Medieval MC [NEOFORGE] MMC5 Cobblemon Optimized All 1028 Pokemons + Legendary Cobblemon Optimized All 1028 Pokemons + Legendary Cobblemon Expanded (by Jonathan) Cobblemon Expanded (by Jonathan) Origins SMP: Fabric Origins SMP: Fabric More Decorations [FORGE] - 1.21 UPDATE! More Decorations [FORGE] - 1.21 UPDATE! BigChadGuys Plus (Non Cobblemon!) BigChadGuys Plus (Non Cobblemon!) Farmopolis Farmopolis FPS Booster FPS Booster The Broken Script Enhanced The Broken Script Enhanced [MODIFIED] Cobblemon: PLUS [MODIFIED] Cobblemon: PLUS Better Adventures++ Better Adventures++ Create Optimized [FABRIC] Create Optimized [FABRIC] Thunder Thunder OptiMobile+ OptiMobile+ Vanilla Perfected (Curseforge Edition!) Vanilla Perfected (Curseforge Edition!) Everything Voxy Everything Voxy RaftPack RaftPack Act. & Better Act. & Better Cobblemon SMP Cobblemon SMP Essential Perfected Essential Perfected Origin - SMP Origin - SMP FPS Essentials FPS Essentials Create Aeronautics - Skybound | Create Aeronautics & Create Addons with Quests Create Aeronautics - Skybound | Create Aeronautics & Create Addons with Quests Prominence™ I (Legacy) Prominence™ I (Legacy) Better Cobblemon (Pokemon) Better Cobblemon (Pokemon) Medieval MC [FABRIC] MMC2 Medieval MC [FABRIC] MMC2 Speed Of Light FPS Booster (SOL) Speed Of Light FPS Booster (SOL) Cobblemon SMP - RPG - The #1 Cobblemon Experience - Pokemon in Cobblemon Aventure Cobblemon SMP - RPG - The #1 Cobblemon Experience - Pokemon in Cobblemon Aventure MYTHCRAFT 5 MYTHCRAFT 5 Vampirism.co Vampirism.co Infinite Origins Infinite Origins Horrorland 2 - Psychological and Classic Horror Modpack (with Horror Quests) Horrorland 2 - Psychological and Classic Horror Modpack (with Horror Quests) New Revolution - An Improved Vanilla Experience | 1.21 UPDATE! New Revolution - An Improved Vanilla Experience | 1.21 UPDATE! Confluence: Journey's Start (Terraria ModPack) Confluence: Journey's Start (Terraria ModPack) Vanilla+ Lightweight | MC Vanilla+ 1.21.11 Vanilla+ Lightweight | MC Vanilla+ 1.21.11 Better Adventures+ Better Adventures+ All Of Farmer's Delight : Farming Agriculture & Cooking All Of Farmer's Delight : Farming Agriculture & Cooking Cobblemon Islands Server Modpack Cobblemon Islands Server Modpack Contained Opolis (A Space Adventure) Contained Opolis (A Space Adventure) Cobblemon Eternal: The Minecraft Pokémon Experience Cobblemon Eternal: The Minecraft Pokémon Experience FPSBOOST FPSBOOST Mayview (with Cobblemon!) Mayview (with Cobblemon!) Create Stellar Create Stellar Cobblemon Delta Cobblemon Delta More Realistic [FORGE] - 1.21 UPDATE! More Realistic [FORGE] - 1.21 UPDATE! Origins++ Modpack Origins++ Modpack Xray Pack Xray Pack All Simple Voice Chat Connections! All Simple Voice Chat Connections! Sensible MC Sensible MC Spunky X Vulkan Spunky X Vulkan More FPS [FABRIC] - SHADERS 1.21.11! More FPS [FABRIC] - SHADERS 1.21.11! [FABRIC] Adventure Pack [FABRIC] Adventure Pack Pokecube Pack Pokecube Pack Planeta Vegetta (Unofficial) Planeta Vegetta (Unofficial) Better Realism MC | Vanilla+ & Realism (Based on RealismCraft) Better Realism MC | Vanilla+ & Realism (Based on RealismCraft) Cobblemon Realms Cobblemon Realms Technical Electrical Technical Electrical Sky FABRICation 2 Sky FABRICation 2 Attack On Titan - Awakening Of The Titans Attack On Titan - Awakening Of The Titans The Farm The Farm Euphoric Curiosity Euphoric Curiosity Skyopolis: Evolved Skyopolis: Evolved Immersive Trailer Experience Immersive Trailer Experience More Biomes [FORGE] - 1.21 UPDATE! More Biomes [FORGE] - 1.21 UPDATE! Sodium Extra Sodium Extra Dragoncraft Dragoncraft Cobblemon Cobbletwo X MegaShowdown [1.7.3] (Pokemon Modpack) Cobblemon Cobbletwo X MegaShowdown [1.7.3] (Pokemon Modpack) Essentially Optimized (FPS) Essentially Optimized (FPS) Reimagined Reimagined Spunky PVP Plus (Mobile) Spunky PVP Plus (Mobile) Guild Adventures Guild Adventures Crystal Client Crystal Client Speed Of Light FPS Booster (SOL) With Shaders Speed Of Light FPS Booster (SOL) With Shaders Essentials Mods [FABRIC] - 1.21 RELEASE! Essentials Mods [FABRIC] - 1.21 RELEASE! Better MC [BMC6] Better MC [BMC6] DiosesMC - Official DiosesMC - Official Cobblemon Multiplayer- Cozy POKEMON Adventure Cobblemon Multiplayer- Cozy POKEMON Adventure Modded Together Modded Together All of Origins All of Origins Sky FABRICation 3 Sky FABRICation 3 From Magic To Tech From Magic To Tech The Unstable SMP Simulator The Unstable SMP Simulator Essential Sodium Essential Sodium [SUC]Surival Useful Circuit生电全家桶 [SUC]Surival Useful Circuit生电全家桶 Spell Dimension Spell Dimension Ice Boat Racing Ice Boat Racing Wightcraft Wightcraft NeoTech Reborn NeoTech Reborn Axas Perfect Pack Axas Perfect Pack Satisfaction Guaranteed Satisfaction Guaranteed Frost Client Frost Client Fabri's Frontiers Fabri's Frontiers More Dungeons [FORGE] - QUALITY UPDATE! More Dungeons [FORGE] - QUALITY UPDATE! Calvin's From The Fog Calvin's From The Fog Tempest Protocol Tempest Protocol More Animals [FABRIC] - 1.21 UPDATE! More Animals [FABRIC] - 1.21 UPDATE!

External Resources

CurseForge Modrinth Source Code Issues