Minecraft Java 1.21 Mods
Browse 3,674 free mods for Minecraft Java 1.21 — popular picks include Minehard, First Kill Rewards, Vozduhan.
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Minehard
Minecraft is too easy, so I made it harder.
First Kill Rewards
A datapack that rewards you every time you kill a mob for the first time.
Vozduhan
Turn your voice into destructive wind. Speak into your microphone to blow away blocks, push mobs, create hurricanes, and summon tornadoes.
Wandering Trader Notifier
Detects wandering traders that spawn nearby. /wtdconfig for the config menu. timing on servers is an estimate since there is no server side mod.
Void_editon.o.o.o
Weird minecraft edition that i found in the .minecraft files
cherri's Minesweeper
Fully functional, customizable, multi-dimensional Minesweeper in Minecraft.
Sanity System – Psychological Survival
A subtle psychological horror mod that adds a hidden sanity system, immersive hallucinations, and fear-based survival mechanics to Minecraft 1.21.4 Fabric.
Blazin Happy Ghasts
Adds the 1.21.6 Happy Ghasts to the game, along with a bunch of other additions!
Easy Bee
A completly new way to trasport bees with extra tweaks
Mob Curing
Revert mooshrooms, pigmen and witches back to their previous forms.

Cobblemon Scroll Cases
Adds CS:GO-style roulette cases for Cobblemon, with tiered Iron, Gold, and Diamond boxes, NPC trades, Pokemon rewards, and Cobblemon item drops.
MobSpawner
Easily create simple dungeons or mob arenas with an optimized plugin!
Infinisting
A very simple mod that makes it so bees no longer die after stinging a player

Infinite Raid
A mod that adds a constant, unending raid, with only a brief reprieve when you win.
[Cobblemon] Jet's Stick and Apple
Jet's take on a Minecraft-inspired Cobblemon Region

realistic horse control
Vanilla horse riding that actually feels like horse riding. Camera follows the horse, gallop shakes the screen, stamina limits sprinting, and you can ride through leaves without dismounting. Fabric 1.21.1, fully configurable.
Shulker Eggs
A throwable egg for capturing mobs in item form.
Reforested
A Reimagining/Love letter to Forestry and Binnie's Mods for Minecraft Fabric 1.21
Chicken Jockey (Earth2Java Compat)
Inspired by 'A Minecraft Movie', this mod makes baby zombies seek out nearby chickens so they can become jockeys.
Monster Origins
(WIP) Minecraft 1.20.1 (and now 1.21.1) / Fabric addon for Origins that adds four origins Arachne (a humanoid spider), Medusa (a gorgon), Harpy (a storm-wind bird-woman), and Mermaid (a singer of the deep) each built around a different playstyle
Emergence
Gives Villagers entirely new jobs to supplement their economy, as a bonus gives you new workstations!
Minecraft, But Every 30 Seconds You Swap Places With a Mob
A Fun Datapack that randomly swaps your coordinates with any loaded mod(hostile/passive).
Dungeons, Creatures and Classes (DnD): REMADE
A D&D inspired RPG mod with Mobs, structures, classes and a lot more!
Perfectly Balanced Horses
Enhance horse breeding with faster, stronger, and healthier horses through improved stats.
Industrium Mod
Industrium is the all new mod for revamping your minecraft with a fresh set of items and blocks!
DG Spawners
Complete spawner plugin for Paper 1.21+. GUI shop, upgrades, auto-collect, virtual storage, holograms, trust system. Place on any block.
Shogun's Blast - Undead & TNT
Explore haunted Japanese villages, battle explosive Oni Warlords, and defeat the Council of Leaders in this immersive RPG structure and combat mod.
VirtualSpawnerPro
The Ultimate High-Performance Spawner Solution for 1.21+
RankedSMP-Better
Youtubers (SharpnessMc , Wemmbu , Flamefrags , etc) Inspired PaperMC plugin for Minecraft 1.21.x that adds a competitive ranking system with unique abilities, extra inventory, and more.
Programmable Robots
adds programmable robots to the game which you can program in the day, and get run at night
Solute Extras
More enchants, better craft and smelt recipes and fair mob drops in an expansion of Solute.

Failed Breeding
A simple mod that gives mobs a chance to fail at breeding!
Animal Pens Paperized
Simple plugin that allows to put animals into pens instead of having them roaming around the world
Muffles&Truffles
This mod adds a mob to the game called the shroomkin, the shroomkin is a wandering trader esc type mob with some mechanics mixed in from the pilgin, if your looking to overhaul the mushroom fields were your mod!
No More Villagers
Stops Villages from generating
oSzoukaua's: Cerulean Wisp
Adds a craftable wisp entity, that provides night vision