Tech riderRev. 30 Sept 2026
- 1Runs onLinux, Mac, Windows
- 2CostsFree plan
- 3Mod loadermulti-loader
- 4Client/server scopeboth
- 5Minecraft versions26.x.y, 1.21.11, 1.21.1, 1.20.1
- 6Requires SodiumNo
- 7Dedicated server supportYes
7 lines stated Written from the maker's own pages: github.com

Overview
Lithium is ranked #1 of 24 in Minecraft performance mods on Specifiction. It runs on Linux, macOS, Windows. There is a free plan.
Lithium plans and pricing
All plansCompared on Minecraft performance mods
- Free plan
- Yesgithub.com
- Mod loader
- multi-loadergithub.com
- Client/server scope
- bothgithub.com
- Minecraft versions
- 26.x.y, 1.21.11, 1.21.1, 1.20.1github.com
- Requires Sodium
- Nogithub.com
- Dedicated server support
- Yesgithub.com
Facts
- Purpose
- Lithium optimizes many areas of Minecraft to improve overall performance.github.com · 29 Sept 2026
- Client and server
- It works on both the client and server, and does not need to be installed on both sides.github.com · 29 Sept 2026
- Game behavior
- Lithium says it does not change game mechanics or visuals.github.com · 29 Sept 2026
- Compatibility
- The project says Lithium is compatible with most other mods.github.com · 29 Sept 2026
- Mod loaders
- Lithium supports Fabric and NeoForge.github.com · 29 Sept 2026
- Downloads
- The project directs users to download Lithium from Modrinth or CurseForge.github.com · 29 Sept 2026
- Configuration
- No additional configuration is needed after installation, and stable optimizations are enabled by default.github.com · 29 Sept 2026
- Tuning
- Users can disable individual optimizations to help resolve mod compatibility issues; configuration changes require a game restart.github.com · 29 Sept 2026
- Support
- Users can report issues on GitHub and get installation help and technical support through the community Discord.github.com · 29 Sept 2026
- Unstable builds
- Automated bleeding-edge builds may contain unfinished code, bugs, or crashes, and the project advises using them only if comfortable debugging software.github.com · 29 Sept 2026
- License
- Lithium is licensed under GNU LGPLv3.github.com · 29 Sept 2026
- Maintainer
- The repository says 2No2Name actively develops Lithium and that JellySquid stepped down from active development in 2020.github.com · 29 Sept 2026
- Optimization areas
- Its optimizations include game physics, mob AI, block ticking, world generation, chunk loading, explosions, and redstone wire calculations.curseforge.com · 30 Sept 2026
- Multiplayer use
- The project says multiplayer server administrators can expect improved tick times, allowing hardware to support more loaded entities, chunks, and players.modrinth.com · 30 Sept 2026
- Single-player use
- Lithium optimizes Minecraft’s internal game server, which the project says can improve frame rates and responsiveness by freeing processor capacity for other work.modrinth.com · 30 Sept 2026
- Setup
- The project says no additional configuration is needed after installation, and its Modrinth description says no other mods or Fabric API are required for the described Fabric installation.github.com · 30 Sept 2026
- Compatibility controls
- A configuration system lets users enable or disable individual patches to address bugs or mod incompatibilities.modrinth.com · 30 Sept 2026
- Related mods
- The CurseForge page says Phosphor and Sodium pair well with Lithium and are fully compatible.curseforge.com · 30 Sept 2026
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Where it ranks on Specifiction
Is Lithium yours?
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Sources
- github.com/CaffeineMC/lithium· checked 29 Sept 2026
- github.com/CaffeineMC/lithium/blob/develop/lithium· checked 29 Sept 2026
- curseforge.com/minecraft/mc-mods/lithium· checked 30 Sept 2026
- modrinth.com/mod/lithium· checked 30 Sept 2026