Minecraft Java 1.21 Mods
Browse 515 free mods for Minecraft Java 1.21 — popular picks include Mighty: Magic and Rituals, BITE, UHC+.
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Mighty: Magic and Rituals
A magic mod where magic and technology are deeply intertwined.
BITE
Minecraft has become too easy. BITE will changes that.
UHC+
A data pack that adds in UHC, but with additional features like augments, special items/equipment, and bosses that spawn in during the game.
CMobs
With this plugin there is slight chance for mobs to spawn as compressed. When they are killed they uncompress so 10 more of them spawn in same place.

RestoreIt
Allows easy restoration of selected areas to previous states. Perfect for PvP servers, minigame servers, and build competitions where you need to quickly reset areas.
Zynd's Infection Mod: The Spread
It devours. It grows. It transforms. It spreads.
Aquatic Creatures
Did you know we know most about the space than own ours oceans? I want to make you feel that with this mod
Everything Korean
It adds Everything Korean. Plus some other random stuff.
Pea Garden: a Plants vs Zombies mod
Adds Plants vs Zombies plants and items to your minecraft world
Void Vanguards
🛰️ ModJam 2025: A lore filled quest mod about conflict between The Vanguard and Voidborn.
Dark Mode Datapack
Minecraft, but it's dark.
Parched And Bogged
A set of vanilla-like mobs inspired by the Husk, Parched, Bogged etc.
Japancraft
This mod adds new japanese-style features like a new mob from princess mononoke, structures, a new biome, a new dimension, armor, weapons and more!
Healing Mod: Rebooted
Healing Mod: Rebooted is a complete reimagining of the original Healing Mod v1.3.0, rebuilt from the ground up for Minecraft 1.21
Disable Zombie Sieges
Disable Zombie Sieges from spawning and messing up your village in all overworld biomes.
The CCM
The Official Chicken Cult Mod!
Agony
A big content mod meant to make your life harder.
Feningland
A Mod Aiming to Revive the feeling of classic 1.12.2 mods by including lots of Dimensions,Biomes,Entites,Weapons and a whole lot more.
Protected End Blocks
Prevent The Enderdragon from breaking all end blocks and more
wandering explorers
wandering traders trade biome explorer maps
Michael: The Great Adventure!
A Mod that I made for sh*ts and gigs.
Public Safety: Fear & Contracts
Join Public Safety. Hunt devils born from fear. Make contracts that hurt. Become something worse than human, or die as one.

Butcher's Deerhunting (Yi Xi)
Adds a minor, funny, slightly terrifying stalker to your worlds, along with cool weapons, tools, items, and a new material system to make them.
Nether's Paradise (Hell's Paradise)
Adds Biome, Powers, Mobs, Weapons ect... from Hell's Paradise !
DragonEggRespawner
plugin that allows the dragon egg to appear more than 1 time
SeasonsAndHolidays
SeasonsAndHolidays Plugin Applies real-time seasonal effects and holiday-themed events based on the actual calendar, including snow in winter, falling leaves in autumn, and festive mobs during Halloween, Christmas, and Easter.
CorruptionCraft
A plugin that challenges players. Random events can occur. (no Spoilers!)
To Adventure
Explore new custom biomes, upgrade your skills, and battle unique monsters in your journey — your adventure begins here!
Chunky-Challenge
A Minecraft Mod wich spawns a new Mob you have to fight when you enter a new Chunk. Inspired by Youtuber BastiGHG
Slimes Everywhere
Allows Slimes to spawn at night in any biome
Simple Raider Guns
This mod adds the items and weapons from a famous videogame called Arc Raiders.
Borukva Fish
Polymer fully server-side fish
Stellarity_x_True_Ending_patch
Compatibility layer for seamless integration between Stellarity and True Ending datapacks.

Slime Tweaker
Small mod that adds a gamerule and config to change the size of spawned slimes.
Genshin Impact Lunar Expansion
It is a massive expansion that brings the magic, weaponry, and currencies of Teyvat into Minecraft, while completely overhauling your end-game exploration with breathtaking new biomes, mystical abilities, and custom entities.
Zombie Expansion
A mod that adds various types of zombies, blocks, items, dimensions, mechanics and more