Minecraft Java 1.21 Mods
Browse 3,674 free mods for Minecraft Java 1.21 — popular picks include MedievalPlus, ExplosionController, Graze.
Updated daily
MedievalPlus
Adds a medieval theme to minecraft that complements vanilla. This adds forgeries which change weapon stats and behaviour, new QoL items for horses and new mob variants using said forgeries.
ExplosionController
Control Minecraft explosions by type, world, and damage.
Graze
Let your livestock find their own food and reproduce naturally.
ZombieSMP
Turns Minecraft into a contagious zombie survival experience: quadruple zombie spawns, explosive beds, and players who become zombies after infection. Perfect for custom server SMP events and dangerous nights.
More Recipes: Color Carpet & Wool
Dye Carpet & Wool any color from any color, 8 to 8. Preserves Vanilla 1 to 1 recipes as they are still useful.
Hungr
A minecraft difficulty datapack, makes the game much harder
Tankful
Build aquariums, fill them with fish, watch them swim.
S4mus Possession
Possess and play as many different Minecraft mobs, each with custom abilities, sounds, movement, and aggro behavior. Zombies, skeletons, illagers, wardens, breezes, endermen, wolves, piglins, pandas, and more all have unique mechanics.
Orbs 'n' Stuff
Adds Diablo-style 'health drops' that heal the player on pickup, as well as other orbs that provide bonuses like XP and status effects.
CTF Buddy
Your assistant for Capture The Flag style competition events.
Remove "Tears" Music Disc
This simple data pack remove the drop of the "Tears" music disc from Ghasts when killed by their own reflected fireball.
My Shadow
My Shadow adds a unique side quest to Minecraft, involving a cursed relic, a sword duel and other magic stuff.
Cool Bosses & Crafts I - Data Pack
A new datapack focused on adding several new craftings, new enchants and new music disks and alot more in the future.
Teleport With Entities
Teleport With Entities is a lightweight Minecraft plugin that ensures players teleport with their boats, minecarts, and other ridden entities. Designed for Paper and Spigot servers, seamlessly integrating with EssentialsX.
Elysian Horizon
A beautiful modpack with a lots of custom mobs, bosses, tools and mechanicts
Cat Retaliation
When a player attacks a cat, the cat will retaliate by biting and scratching the attacker.
Bane of Arthropods Addon
Let Creepers be affected by Bane of Arthropods!
Year of the Bomb
A mod where most of the vanilla items, blocks entities are long gone, and in their place, a giant, orange, dead post-nuclear wasteland awaits the player.
Sniffer +
this mod upgrade the sniffer mob so it becomes more useful with new plants,drops end a few more itens
CraftStats
CraftStats is a universal in-game stat editor for Minecraft that lets you inspect and modify the properties of any mob, block, item, or player.

UniverseGate
Create your own portals between long distance and dimensions and discover the Rift dimension!
Item Limits
Easily Create limits of those items you don't want at all or just a few of!
Universal Darkness│通用黑暗
Mobs are also affected by Darkness.│生物也會受到黑暗效果的影響。
Polar Bear Overhaul
A mod that changes polar bears to have new models with fresh animations and overall makes polar bears much more of a challenge to fight if you so choose to make them mad..
CreatureToss
Ever wanted to yeet a creeper across a ravine?
MZZ's Desert Survival
Makes the whole world a desert; overhauls Minecraft's crafting recipes to provide unique progression and highlight Minecraft's overlooked features.
Squeebs N' Stuff
A mod that adds another ender friend to your Minecraft world!
BetterCreaking
The Pale Garden as it should be. A scary and dangerous biome
Mysti Token
Misti Tokens adds nine unique tokens with special abilities, custom sounds, pets, transformations, and resource pack support. Players receive a random token on join, tokens cannot be lost or dropped, and all abilities are unlimited. Made by Pixel Beast.
No Hard Feelings
a light-weight mod that stops mobs hostile mobs from attacking each other
Randomizer Mod
Adds a few new customizable Randomizer-Mods to the game
Goose Expansion!
A mod that adds GEESE to Minecraft in an INTERESTING way.
Arctics Undertale Souls
This mod was made from an idea I have had for a long time where you can be a human and or monster from Undertale. You can use Monster or Human magic to make your way through the world. You can either be enemys or friends its your choice.
AntiCreeperDestroy
Creeper can hurt you, can't destroy blocks and drop items
Fractured Distance
As you go further and further from spawn, the terrain, structures, mobs, blocks, items, and physics of Minecraft start to slowly corrupt

BountyPledge
A pledge-based bounty system that uses items rather than an economy plugin. It is designed for competitive SMPs and player interaction.