Minecraft Java 1.21 Mods
Browse 522 free mods for Minecraft Java 1.21 — popular picks include Jujutsu Kraft / Sorcerer Craft, ChaosSwap, MultiverseCreatures.
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Jujutsu Kraft / Sorcerer Craft
A datapack heavily inspired by Jujutsu Kaisen!
ChaosSwap
Randomly swap positions with mobs every 40–60 seconds. Fully customizable with optional effects and instant mode. in the config file
MultiverseCreatures
Plugin for custom themed creatures and items on Spigot/Paper
CatChest
Allows to open chests while cats sit on them.
Split!
Just split them in face!
Hardcore Slots
In this mode, every time you take damage, one slot in your inventory becomes locked and can no longer be used.
SoulChain
SoulLinkCurse automatically links two players’ souls so damage and death affect both, and the curse can only be broken by performing a ritual with specific items inside a secret chest hidden in a desert temple.
FlightHeightRestrictor
Restrict player flight height with automatic enforcement.
Curses Revamped Additional
Addon for Curses Revamped that adds new, hidden, and dangerous curses with research, fake enchantments, cursed books, and Ominous Offering.
Curses in Enchantment Table
Simple datapack to make curses appear in the enchantment table.
Dominus
Dominus is a Paper 1.21+ plugin that lets trusted operators secretly control a Minecraft server — shaping the world with powerful tools or walking among players disguised as any mob — while remaining completely undetectable.
sukuna abilities
adds sukuna's abilities to the game
NoArrowsStuck
No more arrows stuck on players
Parry Plus!
This is a ULTRAKILL styled parry mod for Minecraft!
Potion of Combat Log
Combat logging is now a feature, so it's not cheating!
Beep's Mean Crystalline Resource Machine (BMCRM)
Yet another take on passive resource generation. Forge crystals and resonate them to obtain their spoils.
GlobalHealth
All players share one global health bar. Damage one, damage all. Heal one, heal all. If one player dies, everyone dies. Perfect for challenges, hardcore modes, and teamwork-focused gameplay as well as creating content and events.
Being Alone (BE)
This mod makes you feel alone... because you are...
Mod but my Friends decided what's in it
lots of stuff, a huescape dimension, dragons, epic cave biome with game-changing mob, eldritch horror spider, Son Goku and more!!!1!!!
dde's Amazing Mod
Adds new blocks, items, potions, and small gameplay features focused on fun building, utility tools, and lighthearted content.
Aubin's Drills
Adds drills to minecraft, just like in satisfactory.
Ender Node
Sculk + The End = weird teleportation devices

AI Moderator
AI-Moderator is a cutting-edge, high-performance moderation system for Minecraft servers (Paper 1.21+). It combines lightning-fast local heuristic filters with the deep contextual understanding of modern AI models (Gemini, OpenAI, Ollama).
Blood Price
Trade your blood for strength!
Herobrine's Sword
Herobrine's Sword from Animation Life
Heaven's & Hell's Armors
Adds Heaven's and Hell's Weapons and armor.
Nightshift
Challenge oriented, randomly generated nocturnal events.
Enchant when jump
This mod make it so ANY item you are holding can be enchanted with ANY enchantment to level 255 !!!
1 Tap Kill
Give selected players the ability to instantly kill allowed mobs or players with a normal melee hit. (Troll plugin)
ZombieVillager
Turns Zombies into Villager Zombies
Magi Mirrou
Use magic mirror to teleport to your home!
Realistic Heights
Makes your real length, your minecraft length.
living water
Now you take damage when you're not in water
Cursed Coin
A cursed item of unknown purpose. Rarely dropped by zombies and skeletons. Use it… if you dare.
The UnHoly One
a new system of abilities. and lore to a certain individual in a peaceful world.
Mystic Pulse
This datapack adds drums to the game and when you play them in a specific pattern it can give you effects