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Minecraft Java 1.21 Mods

Browse 2,172 free mods for Minecraft Java 1.21 — popular picks include XNet, Temporal API, Create Cobblestone.

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XNet
1.21.1neoforge

XNet

XNet is a highly optimized networking cable system for items, energy, fluids, information, ...

125Mdownloads
Temporal API
1.21neoforge

Temporal API

Temporal API is the library for Team Temporal mods, other projects may use it as well.

15Mdownloads
Create Cobblestone
1.21.1neoforge

Create Cobblestone

Adds a block generating cobblestone using SU, stopping cobblestone generators from eating your frames.

4.5Mdownloads
Animal Pens
1.21.11neoforge

Animal Pens

Reduce lag and keep your animals neatly stored while maintaining full interactivity!

4.2Mdownloads
Only Bottle Caps
1.21.1fabric

Only Bottle Caps

This mod adds only Bottle Caps into Cobblemon

3.8Mdownloads
XP Synthesiser
1.21.1neoforge

XP Synthesiser

A mod that allows you to synthesise XP from power

3.4Mdownloads
Smart Particles
1.19.2neoforge

Smart Particles

A performance mod that greatly optimizes particle rendering and particle limits.

2.4Mdownloads
Jauml
1.21.11neoforge

Jauml

Jauml is a lightweight configuration library for Minecraft mods, designed to simplify JSON-based config management

1.4Mdownloads
Pipez Lag Fix
1.20.1neoforge

Pipez Lag Fix

Adds eco mode to item pipez to improve performance

1.3Mdownloads
Quantified API
1.20.1fabric

Quantified API

A high-performance API for Minecraft mods, built to handle tasks efficiently, reduce lag, use GPU acceleration, smart caching, and multithreading - keeping your game smooth and stable.

1.3Mdownloads
Create+
1.21.1neoforge

Create+

A simple, optimized, vanilla+ pack, except for the inclusion of Create (and its addons). Now with Create: Aeronautics!

1.2Mdownloads
ResourcePackCached
1.20.3fabric

ResourcePackCached

Keeps server resource packs loaded, so they don't need to be reloaded when you rejoin.

911kdownloads
CobbleBoss
1.21.1neoforge

CobbleBoss

A mod that allows you to infinitely add and customize your own exclusive Bosses in the Cobblemon world.

880kdownloads
Create: Smart Bounds
1.21.1neoforge

Create: Smart Bounds

Improves create mod's block entity renderbounds

535kdownloads
ZeroCore
1.21.1neoforge

ZeroCore

A mod intended for other mod authors, it contains a revised multiblock API that support multiple client mods without performance penalities, a new new GUI system, a base BlockEntity implementation that simplifiy data syncronization and much more.

358kdownloads
命运齿轮FOM【Fate's Machinery】
1.21.1neoforge

命运齿轮FOM【Fate's Machinery】

轻量级机械动力整合包,基于最新NeoForge优化,专注自动化玩法,流畅低耗。 Lightweight Create modpack on NeoForge, optimized for smooth automation gameplay.

320kdownloads
ClickCrystals
1.21.11fabric

ClickCrystals

Crystal PvP tweaks client mod. Your ultimate cpvp assistance. Various tweaks that improve your performance without ruining the cpvp experience.

314kdownloads
Create: Deployer API
1.21.1neoforge

Create: Deployer API

A create library for addon-developers to simplify logistics

309kdownloads
Reimagined Intro [MOVED TO NEW PROJECT]
1.21.11fabric

Reimagined Intro [MOVED TO NEW PROJECT]

[READ THE DESCRIPTION] Replaces Minecraft's intro with a new Mojang animation and the official Minecraft channel outro!

269kdownloads
PowerRanks
1.21

PowerRanks

Rank-based permission manager for servers.

257kdownloads
Load My Chunks
1.18.2forge

Load My Chunks

A Server Friendly Chunk Loading Mod

256kdownloads
Photonics: A raytracing engine
1.21.11fabric

Photonics: A raytracing engine

A ray-traced voxel engine with a focus on performance and crisp shadows

247kdownloads
Everything Voxy
1.21.11fabric

Everything Voxy

This modpack makes Voxy run fast and smooth with full support for compatible shaders. 1.21.10–26.2

210kdownloads
Highlighter
1.21fabric

Highlighter

Highlights items in your inventory different colors depending on their enchantments and types.

187kdownloads
Plants vs. Zombies
1.21fabric

Plants vs. Zombies

Clousers Plants Vs Zombies Project

178kdownloads
TreeTimber
1.21.11neoforge

TreeTimber

Treecapitator mod. Unlock the power of efficient woodcutting.

163kdownloads
[SCM] Simply Create Model Mod
1.21neoforge

[SCM] Simply Create Model Mod

(Mod ver.) Optimise many Create mod models

159kdownloads
AudioThrottle
1.21.11fabric

AudioThrottle

Improves the Minecraft sound engine for better performance

157kdownloads
Undertale
1.21fabric

Undertale

Minecraft Full Undertale map Experience (Part 1-2)

155kdownloads
Fps Booster Command
1.14fabric

Fps Booster Command

This mod adds 1 simple command /fps max which increases your fps by a ton

143kdownloads
PvP
1.21.1fabric

PvP

The best modpack for crystal, sword and axe PvP. Having a huge focus on game performance.

133kdownloads
Create Sable Dynamic Lights
1.21.1neoforge

Create Sable Dynamic Lights

A bridge between Sodium Dynamic Lights and the Create mod as well as the Sable mod used for mods like Create: Aeronautics

130kdownloads
Moonlit Performance Enhancement Module
1.20.2forge

Moonlit Performance Enhancement Module

A optimization mod for Forge/NeoForge that overhauls Minecraft’s core event system. Eliminates reflection bottlenecks to accelerate event processing, enables instant language switching, and adds the /killmobs command to instantly remove all hostile mobs wi

127kdownloads
Cobblemon Ori Starlight
1.21.1fabric

Cobblemon Ori Starlight

Cobblemon 1.6.1 combine with some new high quality mods in 1.21.1. Using oritech to make pokeball, and explore a new world in eternal starlight dimension. Extra vanilla style mods and datapacks are added to make a immersive game experience!

124kdownloads
[SUC]Surival Useful Circuit生电全家桶
1.21.10fabric

[SUC]Surival Useful Circuit生电全家桶

生电全家桶 An advanced Minecraft survival redstone and automation modpack featuring Carpet and Masa mods.

120kdownloads
Technical Electrical
1.21.1neoforge

Technical Electrical

Technical Electrical is a 1.21 sandbox style NeoForge modpack about relaxing and having fun alone or with friends! Build, Destroy or Control the world, with tech or magic! (Includes Public Dedicated SMP Server!)

114kdownloads