Minecraft Java 1.21 Mods
Browse 3,674 free mods for Minecraft Java 1.21 — popular picks include You Received a Crit from the Arrow│你受到了箭矢的暴擊, Armor Management, Clairvoyance│千里眼.
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You Received a Crit from the Arrow│你受到了箭矢的暴擊
Arrows shot by AI mobs are always crit arrows.│由AI生物射出的箭矢必定是暴擊箭矢。
Armor Management
Gear up and pick-pocket entities using Minecraft's built-in armor system.
Clairvoyance│千里眼
Allow the humanoid mob to see further.│讓人形生物可以看得更遠。
HydroPhobic
Makes all entities allergic to water
Better Pillager Patrols
Configure all pillager patrol spawn parameters!
Bug Out! Cobblemon
A Datapack/Resource Pack duo that reshapes the Bug-type to bring new life into the type by changing the stats of some Bug-types, give them new abilities and moves as well as some new typings.
Mobility Flux
Adds unique and inspired mobility items into Minecraft.
HappyGhast - Ride & Upgrade
Give Happy Ghasts real gameplay: permanent speed boost, cargo & upgrades, fireball shooting, freeze/heal, and harness buffs.

Slime Tweaker
Small mod that adds a gamerule and config to change the size of spawned slimes.
Assassin Enchant
This adds an enchantment which gives you more experience when killing mobs
Resin Gun
A weapon to catch and transfer Mobs with fancy animations
RandomMobBoost
Give a Chance Reinforcement Every Mob.
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.
SpaceFrog's Frog Variant Changer
Change a frog's variant type using a vanilla/survival-friendly method. Works with vanilla (cold, temperate, warm) and optionally 'More Frogs 2' variants: crimson, ender, infernal, poison dart, purpur, sculk, spirit, warped, and wood.
disguise-mod
Disguise as mobs, blocks or online players.
SilkSpawnerPro
SilkSpawnerPro is a lightweight, high-performance standalone utility designed for servers that need precise control over mob spawners.
SpaceFrog's Real Pet Frogs
You can tame & make frogs your pets similar to wolves & cats. They get power-ups, they'll teleport to you on your adventures, or summon them as a mighty Frog Squad! They'll even defend you from hostile mobs (see details).
The Power of Unown - Unown Rework
A Cobblemon data pack that reworks Unown to be somewhat relevant.
Zombie Expansion
A mod that adds various types of zombies, blocks, items, dimensions, mechanics and more
Dega's Death Messages
Replaces every vanilla death message with a unique, funny, or thematic custom message for over 80+ mobs and causes!
Conjurer's Dream
Summon entities to fight and defend for you using a diverse array of powerful staffs each with unique abilities.
ChargedHeads
Get the player's heads in the most vanilla way - with the help of charged creepers
RoadSpeedMounts
Make horses, camels, etc faster on roads.
Biznesmod
This mod adds new biomes, a new villager proffesion, new mechanics (upgradable abilities, collecting iron dust to make iron ingots, etc...), new custom structures (10+), a TNT cannon which shoots tnt where you look and some new redstone components.
Stationary Happy Ghast
Prevents your happy ghast from flying away from you!
Impaling Bedrock Parity
Replaces Java's Impaling with bedrock's superior system.
Give It The Beans!
Temporarily boost the speed of Happy Ghasts by feeding them snowballs
Better Reimagined
Enjoy this survival experience in an epic and immersive adventure. It introduces new mechanics that enrich gameplay with dynamic combat, while vibrant new biomes and impressive structures encourage exploration with unique and challenging mobs
Qa Zombie Enhance
A mod that simply enhances vanilla zombies.
Farmer Golem
Create automated farming golems. Perfect for automating your farm while adding a magical touch to your world.

Ocelot Drops│山貓掉落物
Ocelot will drop String when killed.│山貓被擊殺時會掉落線。
Skeleton Bow Chance
SkeletonBowChance is a simple mod that adds a configurable chance for skeletons to spawn with bows
Inverted scale mobs
This datapack inverts mob sizes, giving them their opposite scale. It can be quite funny and is perfect if you're looking for something to test out in a video
Anger
Makes angered neutral mobs attack all nearby players

Experiment: Determination
Brings Undertale's iconic save points, time rollbacks, and action consequences directly into Minecraft.
Auction HouseX
A fast-paced, player-driven auction house built for competitive servers. Buy, sell, and flip items instantly in a clean, high-performance GUI. Designed for Paper servers, this plugin keeps the economy moving and the profits flowing 🔥