Lithium

Lithium is ranked #1 of 11 in minecraft performance mods on The Geeks Club. It runs on Linux, macOS, Windows. There is a free plan.

Lithium plans and pricing

Free Free Free and open-source Minecraft mod github.com · 29 Sept 2026

Lithium Free Free and open-source Minecraft mod · Fabric and NeoForge github.com · 30 Sept 2026

Compared on minecraft performance mods

Free plan: Yes
Mod loader: multi-loader
Client/server scope: both
Minecraft versions: 26.x.y, 1.21.11, 1.21.1, 1.20.1
Requires Sodium: No
Dedicated server support: Yes

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6.9 Alternate Current Free plan

Lithium

Purpose: Lithium optimizes many areas of Minecraft to improve overall performance.
Client and server: It works on both the client and server, and does not need to be installed on both sides.
Game behavior: Lithium says it does not change game mechanics or visuals.
Compatibility: The project says Lithium is compatible with most other mods.
Mod loaders: Lithium supports Fabric and NeoForge.
Downloads: The project directs users to download Lithium from Modrinth or CurseForge.
Configuration: No additional configuration is needed after installation, and stable optimizations are enabled by default.
Tuning: Users can disable individual optimizations to help resolve mod compatibility issues; configuration changes require a game restart.
Support: Users can report issues on GitHub and get installation help and technical support through the community Discord.
Unstable builds: Automated bleeding-edge builds may contain unfinished code, bugs, or crashes, and the project advises using them only if comfortable debugging software.
License: Lithium is licensed under GNU LGPLv3.
Maintainer: The repository says 2No2Name actively develops Lithium and that JellySquid stepped down from active development in 2020.
Purpose: Lithium is a free, open-source Minecraft mod that optimizes game systems to improve performance.
Game behavior: The mod aims to improve performance without changing vanilla game mechanics or visuals.
Price from: Free

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Where it ranks on The Geeks Club

Best Minecraft Performance Mods in 2026#1 of 11

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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