Minecraft Java 1.21 Mods
Browse 3,634 free mods for Minecraft Java 1.21 — popular picks include Nice Nitwit Quests, Don't Kill Friends!, Simple Wither Buff.
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Nice Nitwit Quests
Nitwits are lazy and want you to do simple Quests for them.
Don't Kill Friends!
Protect your tamed animals from damage, even when you're offline! Lightweight plugin with HEX color support and full configurability for Minecraft 1.16.5-1.21.11.
Simple Wither Buff
Gives some simple buffs to the wither, nothing overkill
SMPEvents (SMPE)
Randomly starts small competitive events for everyone on the server to participate
LagXpert Free
Modular lag management for every server.
Farms
Increase crops growing speed, autocollect crops. Collect drops near the minion and more
ForceField
Push pesky players, mobs, and even blocks away from yourself!
Wither Loot
Adds better custom loot dropped by the wither
Wild Wonders
A Beta mod that improves world generation and adventure!
Nice Baby Mounts
Adds a chance for some Mobs to spawn with a Baby Mount on their backs.
PVP hitboxes
🗸 This mod changes vanilla hitboxes (F3+B) for PVP.
Sleep Animation: Immersive Sleeping Plugin
Simple: Adds an animation while the night is skipped by players sleeping, making things really more immersive!

Sensible Sleepiness
A mod that adds further per-player customization for Phantom's behavior.
Soul Cage
Soul cages for capturing and releasing mobs
Why not use iron instead? (arrow recipe)
"i should be able to make arrows out of iron too!" Well... NOW YOU CAN! instead of flint use iron and shot some mobs!
Infested Netherrack & End Stone
INFESTED Netherrack & End Stone to End and Nether Dimensions with Spawn Mob System (Endermite and Blaze) (infected)
Monster Hunter Craftlands
Implements features from Monster Hunter into Minecraft.
Antideath-Carpet-addition
Antideath-Carpet-addition is a Carpet Mod extension for Fabric Minecraft servers (versions 1.21.x - 26.2) designed to enhance and optimize the game experience. It adds a suite of new loggers for server monitoring and game rules for survival, optimizatio
No grief endermen
Endermen no longer pick up blocks, but they can still be agro'd
Ultra Chunk Collector
⚡ The Ultimate Chunk Hopper - Instant Item Collection & Stacker Friendly! ⚡
Chunk Challenge
Every chunk is a challenge. A glowing mob blocks your path until defeated, with per-player borders and progressive rewards.
Peaceless
An enemy mod set in the Species universe that adds new mobs with fun mechanics and drops
Piglin Brute Drops│豬布林蠻兵掉落物
Piglin Brute will drop Netherite Scrap when killed.│豬布林蠻兵被擊殺時會掉落下界合金碎片。
Lantern's Peace
🔥👻 Prevents mob spawning with soul lanterns & other soul light sources
Bee Info
Bee Info is a Fabric client-side mod for Minecraft 1.21.11 that shows hive/nest occupancy and honey at a glance.
Build-Helper-Mod
Build Helper is a client-side Minecraft mod focused on making large-scale building faster, safer, and less repetitive. It combines shape-based building modes, blueprint workflows, mining/construction templates, and environment helpers into one toolset.
Double Hit Damage
Doubles mob and player hit damages.
Realistic Wildlife
Real ecosystems for Minecraft. Wolves pack-hunt, sheep alert their herd, foxes stalk at night, and populations balance naturally
[WIP] DragonFist Legacy
(INCOMPLETE and WIP) Adds martial artists to Epic Fight, along with new content, structures, and mini-bosses throughout the world.
Cobblemon: Wild Loot
A Cobblemon mod that gives Pokémon a chance to drop items passively not just in pastures, but the wild and in your party too.
Zelda Horse Behavior
Embrace the brand-new Zelda-like horse taming mechanics!
Cave Dweller Overhaul
Overhauls the Cave Dweller with improved AI, features adapted from the original and Bedrock versions, plus some new additions
Coated Blades
Potion effect tipped/coated weapons that inflict effects on players and mobs.
Feathers & Golden Eggs
Chickens shed feathers and lay eggs--and occasionally, gold nuggets
InstaKillMobs
Instantaneously kill mobs with hand.
SAO Particles
A mod that spawns particles when mobs die, just like in SAO!