Minecraft Java 1.21 Mods
Browse 3,671 free mods for Minecraft Java 1.21 — popular picks include Spawner Upgrades, Universal Trinkets, No Ghast Griefing.
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Spawner Upgrades
A datapack that allows you to collect spawners with silk touch, and/or upgrade them with craftable custom items.
Universal Trinkets
Modular, command-powered trinkets for mapmakers, mod-pack devs, and power players.
No Ghast Griefing
Prevents ghasts from blowing up blocks.
Netherlock'd
Locks the Nether behind the Wither, turning the Nether portal into a sealed gateway that must be unlocked by defeating the guardian within.
CrazyZombie
This is a Minecraft 1.21 fabric mod. The main enhancement of the original zombies is to make zombies spawn in both the Overworld and the Nether Zombies no longer burn during the day, can swim in water, can place and destroy blocks to chase.
DMR: More Dragons: Natural Spawn
Makes Dragon Mounts Remastered: More Dragons breeds spawns "naturally"
Enable trial spawners
Fixes the MC-266487 bug in Minecraft. This mod allows trial spawners to spawn mobs even when the `doMobSpawning` gamerule is set to false, matching the behavior of vanilla mob spawners.

Aspen
A currently small content mod with whimsical/botanical additions.
Immortal Armadillo
When an Armadillo is rolled up, it is immortal!
No Goat ❌
Disable Goat in Minecraft by preventing its spawning and removing any that appear in the world
Adaptive Range Mob Spawner
Set the spawners activation range and dynamically adjust it based on server TPS.
Full Moon Only Black Cats│滿月只有黑貓
This datapack makes spawning black cats easier.│這個資料包讓黑貓變得更容易生成。
MC-Epicly-A
An Integration between MCA Reborn and Epic Fight
Bear Traps
Adds Bear Traps to the game, they can be used to damage mobs that step on them and keep them in place
Multipack: Enhanced Vanilla
Enhanced the vanilla experience with a multitude of features which each improve the game in unique ways
Peaceful Bees
Makes bees passive, preventing them from attacking players and mobs regardless of world difficulty!
Farm Protection
Prevent players and mobs from destroying farms / farmland!
SmartSpawner Addon
Add global boosts, per-world settings, and plugin integrations to SmartSpawner!
No Tropical Fish ❌
Disable Tropical Fish in Minecraft by preventing its spawning and removing any that appear in the world
Simpleriding
A simple riding mod. Allows some riding upgrades for faster travel. (Happyghasts, horses and other saddled mobs)
Canopy
Adds rainforests to Minecraft including 3 new biomes, rainforest mobs and more!
Enhanced Allays
This data pack makes allays teleport to the player or to their noteblock, much like how dogs and cats teleport. It also adds the option to make allays immortal.
Desolate Pale Garden
A datapack which removes all hostile mob spawns in the Pale Garden except the Creaking, which adds to the ambiance of the biome!
SimpleMimics
This Mod adds Mimics that can copy a players Skin, Nametag and Voice Via Simple Voice Chat, Ideal for Servers
MorphMaster
This Datapack allows you to morph/transform in any mob/item/block in minecraft
No Pig ❌
Disable Pig in Minecraft by preventing its spawning and removing any that appear in the world

O's enderite
Adds new ores, tools, mobs, blocks and structures based on Enderite — a powerful resource from the End.
Graveling Zombies
Zombies now drop gravel when killed, letting you double dirt easily and speed up your Skyblock builds!
Super Enderman│超級末影人
Endermen can pick up more blocks.│末影人可以搬起更多方塊。
Nyoldarria
Game expansion mod, intended on adding a lot of new content and a somewhat separate and unique gameplay experience.
Frankenstein Zombie
Expands zombies by adding a cemetery structure where a frankestein zombie can be created and leveled up. Additionally 4 new zombie types have been added
Sansper
turns creepers into sans AUs
Animal Hunger
Welcome to AnimalHunger! Bring your Minecraft farming to life with AnimalHunger, a lightweight and immersive plugin that adds hunger mechanics to your animals!
Mobo's Structures
Pirate Ships! Castles! Dungeons! Towers and More! If you're an explorer, this datapack is for YOU!
Javelin Throw
Transform your tridents into powerful javelins with the Trident Javelin Throw plugin! Perfect for competitive players, this plugin allows you to track and display how far each trident has been thrown, adding a unique twist to the game
No Armadillo ❌
Disable Armadillo in Minecraft by preventing its spawning and removing any that appear in the world