Mods for Minecraft Java
Browse 7,306 free mods for Minecraft Java — popular picks include Indium, Krypton, Starlight (Forge).
Step by step: How to install Minecraft Java mods & modpacks
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Indium
Sodium addon providing support for the Fabric Rendering API, based on Indigo
Krypton
A mod to optimize the Minecraft networking stack
Starlight (Forge)
Rewrites the light engine to fix lighting performance and lighting errors
Krypton Reforged
Unofficial Forge Port of the server networking performance mod "Krypton"

Language Reload
Reduces load times and adds fallbacks for languages
Boat Break Fix [Neo/Forge/Fabric/Quilt]
Fixes a breaking bug with boats and increases performance.
CullLessLeaves Reforged (Unofficial)
Gives you a 9% fps improvement for leaves rendering
Clumps
Clumps XP orbs together to reduce lag
Iris & Oculus Flywheel Compat
Enable Flywheel's optimizations when use shaders.
Concurrent Chunk Management Engine (Fabric)
A Fabric mod designed to improve the chunk performance of Minecraft.
(Sodium) Chloride
Gives to Sodium (and Embeddium for 1.20.1) additional Performance and Quality features for a tasteful experience
Memory Leak Fix
A mod that fixes random memory leaks for both the client and server
Oculus
Unofficial Fork of "Iris", made to work with FML
Debugify
Fixes Minecraft bugs found on the bug tracker
Distant Horizons
Massively increase render distance without harming performance.
Embeddium
A powerful, mod-friendly, FOSS client performance mod for NeoForge
Embeddium (Rubidium) Extra
Port of Sodium Extra to work with Embeddium/Rubidium on (Neo)Forge
Canary
A performance mod designed to optimize Minecraft's general performance and unofficial fork of Lithium mod for Minecraft Forge.
Redirector [Modern]
Redirect Enum#values() allocation in codes and improve game performance.
Entity Collision FPS Fix
Client Side mod that optimizes entity's on the render thread. Fixes https://bugs.mojang.com/browse/MC-228976
Model Gap Fix
Fixes gaps in Block Models and Item Models
Redirected
Memory optimization mod that prevents duplication of Enum values
CIT Resewn
Re-implements MCPatcher's CIT (custom item textures from optifine resource packs)
Surge
An open source performance enhancement mod.
Packet Fixer
A simple mod to fix various problems with packets, nbt and timeouts.
CleanCut
Attack enemies through obstructions! FORGE & NEOFORGE & FABRIC!
Cubes Without Borders
Allows you to play Minecraft in a borderless fullscreen window.
Distant Horizons: A Level of Detail mod
Massively increase render distance without harming performance.
Remove Reloading Screen
Makes resource packs load in the background, allowing you to do other things while waiting!
OptiGUI
Blazing fast custom GUI textures on Fabric and Quilt with built-in OptiFine custom GUI resource pack support
Colorwheel
Allows you to use Iris Shaders with Flywheel
TexTrue's Embeddium Options
Unofficial port of Reese's Sodium Options to work with Embeddium on MinecraftForge/NeoForge.
Enhanced Block Entities
Reduce block entity FPS lag with almost no compromises, and improve their visuals
Mobtimizations - Entity Performance Fixes
Optimizes a lot of tasks that Entity AI wastefully performs, minimal effect on gameplay.

Let Me Despawn
Improves performance by tweaking mob despawn rules. Say bye to pesky unintentional persistent mobs.
Capes
Lets you use capes from OptiFine, LabyMod and other cape mods