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Minecraft Java 1.21 Mods

Browse 3,635 free mods for Minecraft Java 1.21 — popular picks include CloudeEngine, THIS, Happy Trains.

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CloudeEngine
1.21.4fabric

CloudeEngine

The ultimate performance upgrade for mobile players. This engine optimizes hardware efficiency under the hood to deliver a fluid, stutter-free experience while maintaining a 100% vanilla look.

87downloads
THIS
1.21.1neoforge

THIS

Port of the Chickens mod, as well as roost!

87downloads
Happy Trains
1.21.6

Happy Trains

Happy Ghasts in minecarts look forwards!

87downloads
ArcaneMobs
1.21

ArcaneMobs

A plugin to enhance the mobs on your server

87downloads
Coherent Content
1.21.1neoforge

Coherent Content

Small implementation that fixes some of the inconsistencies and mechanics of the game

87downloads
Cobblemon Aegislash Shoulder Mount
1.21

Cobblemon Aegislash Shoulder Mount

This Cobblemon pack allows you to mount Aegislash onto your back.

86downloads
No More Zombified Spear
1.21.11

No More Zombified Spear

This data pack replaces the zombified piglin's golden spear with a golden sword.

86downloads
Copper Golem Reforged
1.20

Copper Golem Reforged

Plugin that adds configurable copper golem upgrades with separate diamond and netherite behaviors

86downloads
F&H survival
1.21.1neoforge

F&H survival

Dark fantasy survival mod that adds content from the game Fear and Funger

86downloads
Nonsense
1.21.8neoforge

Nonsense

A new dimension with unique and creative biomes ...

86downloads
not too fond of creepers
1.21.11fabric

not too fond of creepers

Small mod that disables natural monster spawns

86downloads
Sandbox Craft
1.21.8fabric

Sandbox Craft

Minecraft mod heavily inspired by People Playground.

86downloads
Golem's Legacy
1.21.8neoforge

Golem's Legacy

This mod adds new unusual golems made from various blocks to Minecraft.

86downloads
UniversalMobFoundry
1.21.5fabric

UniversalMobFoundry

New generation of generators! You can buy monsters, simulate their loot, and upgrade the generator.

86downloads
Steve's Custom Bosses Data pack
1.21.5

Steve's Custom Bosses Data pack

This data pack adds custom recipes, advancements, challenges, and bosses to the game, all with vanilla mechanics!

86downloads
Warfre's Mob Personality
1.21.5

Warfre's Mob Personality

Enhance your vanilla experience with tons of variants and details.

86downloads
hybrid-pillager-drops
1.21.4

hybrid-pillager-drops

A combination of the old pillager drops and new ones. Keeps: - ominous potions - captain banners Adds: - 40% chance of 1-5 emeralds - 5% chance of random lvl. 30 book

86downloads
Attributes UI
1.21.1neoforge

Attributes UI

Adds a configurable attributes table to the player inventory, with custom attribute support, display transforms, separators, and an in-inventory toggle.

85downloads
UltimateJumpads
1.20

UltimateJumpads

A lightweight custom made plugin that allows you to create jump pads quickly and easily using a single command. Perfect for servers that want smooth mobility mechanics without complicated setup

85downloads
Charklemon
1.21.1

Charklemon

The Charken, but a Pokemon!!!!

85downloads
PetalDisconnect
1.21.10fabric

PetalDisconnect

A lightweight quick-disconnect mod that triggers instant disconnects via keybind or focus-loss detection.

85downloads
Simply Horse Roads
1.21

Simply Horse Roads

It's a simple and optimized plugin that boost the horse speed on certain road-blocks with the opition to add player boost aswell.

85downloads
Allay & Vex Conversion
1.21.5fabric

Allay & Vex Conversion

Allows the conversion of allays to vexes and vice versa

85downloads
Undead Alliance
1.21.1fabric

Undead Alliance

Turn zombies into loyal companions with trust, personality, and smart AI. Recruit, command, and survive together in Minecraft.

84downloads
Constant Spawning Slimes
1.21.4fabric

Constant Spawning Slimes

Allows slimes to spawn in swamps 24/7 at normal vanilla rates by bypassing daytime and new moon limits, featuring full spawn-proofing support and a cheat-free chat toggle.

84downloads
BreedingControl
1.21.1neoforge

BreedingControl

Simple mod that lets you disable breeding of certain animals/animal groups in the config.

84downloads
Eco Picks
1.21.4fabric

Eco Picks

This is a Minecraft mod where you craft leaf pickaxes, combine them into an OP Eco Pickaxe, and befriend Leafee! a pet that helps you through the game.

84downloads
MobEffects
1.20.5

MobEffects

Vanilla-inspired spawn potion effects for hostile mobs

84downloads
Happy ghast speed upgrade
1.21.6neoforge

Happy ghast speed upgrade

This project adds faster happy ghasts with their speed fully configurable

84downloads
Undead Transformation
1.21.6fabric

Undead Transformation

Zombie transform into husk if died by the sun and skeleton transform into bogged if in contact with water for too long

84downloads
Iron Golems' Revenge
1.21.5

Iron Golems' Revenge

Iron Golems will recognize you as the threat you are and attack you on sight. They'll also get EXTRA angry towards players only.

84downloads
Confluence: Infernum
1.21.1neoforge

Confluence: Infernum

A major expansion for the Confluence: Otherworld mod, designed to increase the difficulty of the mod's progression.

83downloads
Safe Dawn
1.21.1neoforge

Safe Dawn

enemies are pacified by the sun's light

83downloads
Revenge of The Whistle
1.21.1neoforge

Revenge of The Whistle

Bring Whistle Occurence to Minecraft! Can you already hear the Whistle?

83downloads
GLB lib
1.21.11fabric

GLB lib

A library mod that allows for glb 3d models to be used for minecraft entities

83downloads
Pacified Wildlife
1.21.1neoforge

Pacified Wildlife

Prevents animals such as wolves from attacking other animals.

83downloads