Mods
Resource Packs
Data Packs
Modpacks
Shaders
Plugins
Mods Resource Packs Data Packs Plugins Shaders Modpacks
Get Modrinth App Upgrade to Modrinth+
Sign in
ModsPluginsData PacksShadersResource PacksModpacks
Sign in
Settings
Lithium

Lithium

No-compromises game logic optimization mod. Well suited for clients and servers of all kinds. Now available for Fabric and NeoForge!

56.35M
18.2k
Optimization

Compatibility

Minecraft: Java Edition

1.21.x
1.20.x
1.19.x
1.18.x
1.17.x
1.16.2–1.16.5

Platforms

Fabric
NeoForge
Quilt

Supported environments

Client-side
Server-side
Client and server

90% of ad revenue goes to creators

Support creators and Modrinth ad-free with Modrinth+

Links

Report issues View source Join Discord server
Donate on Patreon

Creators

CaffeineMC
CaffeineMCOrganization

jellysquid3
jellysquid3 Original Author
2No2Name
2No2Name Project Lead

Details

Licensed LGPL-3.0-only
Published 4 years ago
Updated 4 days ago
DescriptionChangelogVersions

Show all versions

1
2
7

Lithium 0.11.4 for Fabric

by 2No2Name on Nov 27, 2025
Download

Lithium 0.11.4 for Minecraft 1.20.1 is a backport of a few bugfixes.

You can check out all configuration options here.

Full Changelog: https://github.com/CaffeineMC/lithium/compare/mc1.20.1-0.11.3...mc1.20.1-0.11.4

Lithium 0.15.1 for Fabric

by 2No2Name on Nov 21, 2025
Download

Lithium 0.15.1 for Neoforge

by 2No2Name on Nov 21, 2025
Download

Lithium 0.15.1 for Minecraft 1.21.1 backports several bug fixes, including better compatibility with neoforge.

Make sure to take a backup of your world before using the mod and please report any bugs and mod compatibility issues at the issue tracker. You can check the description of each optimization and how to disable it when encountering a problem.

Fixes

  • Fix missing initialization of block counting in empty sections
  • Mod compatibility between raycast optimization and ponder
  • Fix NeoForge chunk load tricks compatibility
  • Fix double inventory invalidation in hopper optimization
  • Hoppers unsubscribe from block entities and double inventories when invalidated

Lithium 0.20.1 for Fabric

by 2No2Name on Nov 13, 2025
Download

Lithium 0.20.1 for Neoforge

by 2No2Name on Nov 13, 2025
Download

Lithium 0.20.1 for Minecraft 1.21.10 includes mod compatibility improvements and a bugfix.

Make sure to take a backup of your world before using the mod and please report any bugs and mod compatibility issues at the issue tracker. You can check the description of each optimization and how to disable it when encountering a problem.

Changes

  • Minor improvement to explosion optimization (Thanks to jcw780)
  • Re-enable cached sea level optimization
  • Compatibility with NeoForge chunk access during chunk loading
  • Improved compatibility with mods that create entities for outside-world display purposes

Fixes

  • Detect removal of double inventories hoppers interact with correctly

Lithium 0.19.2 for Neoforge

by 2No2Name on Oct 17, 2025
Download

Lithium 0.19.2 for Fabric

by 2No2Name on Oct 17, 2025
Download

Lithium 0.19.2 for Minecraft 1.21.9 fixes a crash on neoforge.

Make sure to take a backup of your world before using the mod and please report any bugs and mod compatibility issues at the issue tracker. You can check the description of each optimization and how to disable it when encountering a problem.

Fixes

  • Fix hopper mixin apply failure on neoforge

Lithium 0.20.0 for Fabric

by 2No2Name on Oct 7, 2025
Download

Lithium 0.20.0 for Neoforge

by 2No2Name on Oct 7, 2025
Download

Lithium 0.20.0 is the first release for Minecraft 1.21.10.

Make sure to take a backup of your world before using the mod and please report any bugs and mod compatibility issues at the issue tracker. You can check the description of each optimization and how to disable it when encountering a problem.

Lithium 0.19.1 for Fabric

by 2No2Name on Oct 2, 2025
Download

Lithium 0.19.1 for Neoforge

by 2No2Name on Oct 2, 2025
Download

Lithium 0.19.1 for Minecraft 1.21.9 fixes a visual issue.

Make sure to take a backup of your world before using the mod and please report any bugs and mod compatibility issues at the issue tracker. You can check the description of each optimization and how to disable it when encountering a problem.

Fixes

  • Fix explosion optimization reducing visual explosion size

Lithium 0.19.0 for Fabric

by 2No2Name on Sep 30, 2025
Download

Lithium 0.19.0 for Neoforge

by 2No2Name on Sep 30, 2025
Download

Lithium 0.19.0 is the first release for Minecraft 1.21.9.

Make sure to take a backup of your world before using the mod and please report any bugs and mod compatibility issues at the issue tracker. You can check the description of each optimization and how to disable it when encountering a problem.

Changes

  • Remove incompatible chunk saving optimization

Lithium 0.18.1 for Neoforge

by 2No2Name on Sep 30, 2025
Download

Lithium 0.18.1 for Fabric

by 2No2Name on Sep 30, 2025
Download

Lithium 0.18.1 for Minecraft 1.21.8 adds several new optimizations.

Make sure to take a backup of your world before using the mod and please report any bugs and mod compatibility issues at the issue tracker. You can check the description of each optimization and how to disable it when encountering a problem.

Additions

  • Optimize piglin/hoglin repellent and turtle egg searches (Thanks to jcw780)
  • Optimize random ticking
  • Optimize precipitation

Changes

  • Re-enable previously broken inline world height optimization

Fixes

  • Fix missing initialization of block counting in empty sections
  • Fix compatibility issue that convert client side mobs to nbt
  • Fix incorrect section y coordinates used in experimental optimization (Thanks to jcw780)

Lithium 0.18.0 for Neoforge

by 2No2Name on Jul 17, 2025
Download

Lithium 0.18.0 for Fabric

by 2No2Name on Jul 17, 2025
Download

Lithium 0.18.0 is the first release for Minecraft 1.21.8.

Make sure to take a backup of your world before using the mod and please report any bugs and mod compatibility issues at the issue tracker. You can check the description of each optimization and how to disable it when encountering a problem.

Lithium 0.18.0 for Fabric

by 2No2Name on Jun 30, 2025
Download

Lithium 0.18.0 for Neoforge

by 2No2Name on Jun 30, 2025
Download

Lithium 0.18.0 is the first release for Minecraft 1.21.7.

Make sure to take a backup of your world before using the mod and please report any bugs and mod compatibility issues at the issue tracker. You can check the description of each optimization and how to disable it when encountering a problem.

Lithium 0.17.0 for Neoforge

by 2No2Name on Jun 17, 2025
Download
1
2
7

Modrinth is open source.

main@bd61f5d

© Rinth, Inc.

Company

TermsPrivacyRulesCareers

Resources

SupportBlogDocsStatus

Interact

Discord X (Twitter) Mastodon Crowdin
Get Modrinth App Settings
NOT AN OFFICIAL MINECRAFT SERVICE. NOT APPROVED BY OR ASSOCIATED WITH MOJANG OR MICROSOFT.