Minecraft Java 1.21 Mods
Browse 12,413 free mods for Minecraft Java 1.21 — popular picks include Pet Hud, Mob Pouches - Pouchable Villagers, Villagers Who Don't Study Well│不好好讀書的村民.
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Pet Hud
Always know if your furry friends are safe or not.
Mob Pouches - Pouchable Villagers
An example data pack for the Mob Pouches mod that allows Villagers to be pouchable.
Villagers Who Don't Study Well│不好好讀書的村民
Villagers may become Nitwit Villagers when they grow up.│村民長大以後可能會變成傻子村民。
For the worthy
A datapack that increases difficulty, inspired by the Terraria Legendary difficulty setting
Stellarity_x_True_Ending_patch
Compatibility layer for seamless integration between Stellarity and True Ending datapacks.
Better Pillager Patrols
Configure all pillager patrol spawn parameters!
Jim's food mod
Mod that adds a couple of foods with special effects
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.
AlwaysPlugin
NoMobs, AlwaysDay, NoWeather, AlwaysSpawn,FirstJoin,Join,Leave
Lasomme
An Origin for the Origins mod. Uses quick air mobility to dodge attacks and inflict maximum damage.

Slime Tweaker
Small mod that adds a gamerule and config to change the size of spawned slimes.
Cyberforged
Welcome to Cyberforged! This mod aims to add a new challenge through a dangerous dimension for players who are bored with the base game.
Assassin Enchant
This adds an enchantment which gives you more experience when killing mobs
Mob Hud
Mob Hud adds a simple bar wich indicates health and name of the entity the player is looking at
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.
Animal Pens Paperized Resource Pack
Animal Pens Paperized Resource Pack for clients
Fathom Mod
Fathom mod is an RPG style mod heavily inspired by terraria's calamity mod, terraria itself and ultrakill, to an extent.
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
RandomMobBoost
Give a Chance Reinforcement Every Mob.
Humanoid Archer Companion
A humanoid archer companion with adaptive combat behavior.
Meowpin Resource Pack
Turns Meowpin into a Totem + that makes sound after activating it. Credit "Moblivion/zemob_1"(me) when making a video about this pack, other download links are not MINE, i have only uploaded this into Curseforge and Modrinth.
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.
Cafe Cuties!
Take a dive into the world of Cafe Cuties! Watch your world fill with various candy and food related creatures, friendly or not!
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.

the pretor
a mod that adds a new dimension called the pretor. and a lot more. created by:crunku/pjam64,zant and mcreator
Scyap's Wooly Cow Mod
This mod adds Wooly Cow from Minecraft Earth with additional content
Zombie Boomer
A Zombie variant that has explosive properties.
Island Likes & Ratings
Let players like and rate each other's islands. Drive friendly competition and showcase the best builds.
iLike2MoveIt - Core
Companion mod for the iLike2Moveit resource pack. It unlocks the parts that need code: villagers holding their trade item in their animated hands, 3D held items, chicken variants and the wolf "welcome back" reaction. Needs the pack + EMF/ETF.
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.
Zombie Expansion
A mod that adds various types of zombies, blocks, items, dimensions, mechanics and more
Chaosium
This mod is a new adventure for the player who will be able to face bigger enemy capable of killing them in a snap, this mod allows you to get new item, armor and block. Once well equipped and prepared the player can go to challenge the bosses
The Prison Realm
The Prison Realm can trap players and Monsters.