Minecraft Java 1.21 Mods
Browse 12,434 free mods for Minecraft Java 1.21 — popular picks include True Scale Mobs, Explosive Chickens 2: Revenge of the Fowl, [BUB] Gender Pack.
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True Scale Mobs
MicroMobs makes Minecraft’s world feel more natural and immersive by bringing mob sizes closer to their real-life counterparts. Tiny insects become truly tiny, animals feel more believable, and the ecosystem becomes more dynamic.
Explosive Chickens 2: Revenge of the Fowl
Adds an Explosive Chicken mob and various other items.
[BUB] Gender Pack
Adds visual variants to mobs based on gender

Rosethorn GUI
a GUI as you never seen before - between petals and thorns
Industrial Upgrate Ice and Fire and more
Fight mythical creatures and upgrade your technologies, make it all automatic
Laicaps
[Alpha] A fantasy space exploration mod - for neoforge 1.21.1
Minecraft Bingo
Be the first team to collect all required items, mobs and advancements to win the game!
Insane's Explosion Overhaul
Enahanced explosions with bigger knockback, apply potion effects from exploder and experimental flying blocks
Plushie Pals CIT
Adorable plushie companions for your off-hand! Replaces the Totem of Undying with 11+ unique stuffed animals using CIT.
More Dyes
A minecraft mod aiming to infinitely* extend the range of available colored blocks.
Reduced Enderman Griefing
Prevent Enderman from picking up world surface blocks
Fish's Custom Enchantments
Vanilla like enchantments dropped as mob loot
Smooth Vanilla
The smoothest vanilla experience with new smooth animations like your hand and mobs!

Playerless Continued
Mobs drop XP & loot regardless of death cause. Continuation of jadc's playerless for 1.21.x.
Darkest Garden
Adds a new boss to the Pale Garden!!!
ANTS by sickvolhard722050
it adds ants and automation of makeing them mybe ... hopefully it some how will work with create if not GOD I PRAY THAT SOMEONE MAKES A ADDON ABOUT THIS
DiamoIronLaz
Mod adds New Biome, New Armor, New Tools, New Mob
Quest Dimensions & Mob Hunts
A Minecraft quest datapack focused on mob hunting, dimensions, and milestone-based rewards. Progress through separate quests such as Overworld, Nether, End, Boss, Zombies, Undead, Arthropods, Animals, and Total Hostiles. Earn bonus experience
One Trident Throw Only One Trident Throw Only
Because why would Drowned have infinite tridents?
FGVmeMoriEsDYU
This mod tries to give the experience of the old mystical versions.
Trial Spawns Dont Disable Themselves
Stops custom made trial spawners from disabling themselves after a single use
Smart Creeper
Modified the behavior of creepers, zombies, skeletons, and endermen to prioritize attacking container blocks.
Bonapart
A Man and Women of Unknown Nature Comes Into Your World And Roams Around
T0PK4_lib
This is a next-generation bugfix mod required for ModderEFGS's and T0PK4's mods to work.
Cobblemon Ditto HMs
Learn Ditto's (Pokopia inspired) HM abilities yourself - cut, fly, surf, teleport and more, fueled by hunger or XP. A Cobblemon add-on for Fabric + NeoForge.
SyncBoost
The simplest way to boost server performance and eliminate lag.
Kill Them Freaks
Adds freaky creatures to Minecraft!
The real peaceful mode
This datapack makes all creatures non-hostile towards players.
Flight Tright
Flight Tright is a Minecraft mod that adds the Flatterbird, a flying mob that drops Shards and Feathers used to craft Flatterbird Wings. While the wings don’t function like Elytras, they are a key ingredient in crafting them, adding a new progression path.
Mod Prelude
Mod Prelude - Revive an Ancient Flora & Fauna.
UltraSpawners [LITE]
UltraSpawners is a lightweight spawner management plugin featuring basic stacking, simple trust permissions, and economy based mob unlocking, designed for survival and economy servers.
Monster Mash
*Now with Baby Variants* Monster Mash transforms Minecraft’s mobs into Vampires, Mummies, Lost Souls, Goblins, and more. Complete with eerie skins, haunting sounds, and mischievous charm.
Backported Spears Mowzie's Mobs Compatibility
Adds compatibility between Backported Spears and Mowzie's Mobs.
Happy Ghast Tiers
Are your Happy Ghasts getting you down? Well wipe those tears away with Happy Ghast Tiers! This datapack adds five new tiers of harnesses each providing a small but noticeable speed boost. And as an added bonus we've added Ghast Treats!
Creeper Nerf
Stops creepers from breaking blocks and damaging entities, but adds a lot of knockback!
berry's magic
Step into a world where danger and wonder walk hand in hand. Discover hidden realms, powerful spells, legendary weapons, and mystical creatures waiting to be challenged. Gather resources, master the arcane, and embark on epic adventures that push your skil