Minecraft Java 1.21 Mods
Browse 579 free mods for Minecraft Java 1.21 — popular picks include Nether Improvements, Goose Expansion!, Creaking Potion.
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Nether Improvements
Configurable, survival friendly tweaks to make the Nether more interesting on Vanilla servers!
Goose Expansion!
A mod that adds GEESE to Minecraft in an INTERESTING way.
Creaking Potion
Adds a new potion effect that temporarily makes an entity get immobilized like the Creaking
Soul Spawners
Craft and Activate Spawners in New Magical Ways!
Chaos Chickens
Unpredictable Chaos Chickens ready to ruin your day.
Summoners
Turns ordinary mobs into mini-bosses that summon reinforcements.
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.
OK Health Indicators
Highly customizable Health Bars & Damage Numbers! Over 100 settings in total!
Cloak Of Invisibility
Craft a mystical cloak that grants the wearer complete invisibility. Perfect for stealth missions, pranks, or avoiding that one Creeper at your front door.
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.
Unholy Mobs
Randomly empowers hostile mobs with powerful variant types when they spawn, making them significantly tougher.
ProtectMyPet
A plugin that allows you to disable damage to your pet.
RacesPlugin
This is a plugin for Minecraft that adds races
Light Suppression Wand
Get full control over light-emissive blocks.
inpossible minecraft
this is a fun project i made hope you like it also it called inpossible minecraft cause i hit n and not m but idc so i kept it like that

Stellaria
A mod dedicated to fighting enemies in a space-like environment!
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.
Cursed HorrorMeta
Cursed HorrorMeta (Minecraft Plugin) is a horror-themed gameplay plugin that transforms a normal Minecraft server into a tense, immersive nightmare.
Witchpack
Witchpack is a witchery inspired data pack that adds features such as modular brewing, flying brooms, and ritual circles.
corpseorigin
Corpse Origin is a Minecraft mod inspired by the web comic "Shen Xiong" (尸兄)/Zombie Brother, designed for Neoforge 1.21.1, introducing a core system of infection, mutation, and evolution.
Mighty: Magic and Rituals
A magic mod where magic and technology are deeply intertwined.
In the Journeys
The mods expand Minecraft further with new ores, mobs, biomes, dungeons, bosses, and magic to discover.

SpyGlassMe
Grow or shrink people with a Growing or Shrinking SpyGlass

Seafood Boil
Makes the Nautilus edible! (And mollusks huntable)

Hammer-On
Anvils can now take damage from falling one block. Made for balancing carpet extra's renewableSand.
Suction: Happy Ghast Enchantment
An enchantment that suctions you onto your Happy Ghast from below it, and keeps it in place!
Cobblemon Spawn Notif Discord
A server-side Discord integration addon for Cobblemon with special spawn alerts, captures, Minecraft ↔ Discord chat bridge, Pokémon images, advanced filters, Alpha compatibility, and a single config file.
Bee Blessing
Enhance your farming with helpful bees! Nearby bees will automatically assist crop growth, accelerating the maturation process with beautiful particle effects. Watch as your crops grow faster with the power of bee magic.
CorruptionCraft
A plugin that challenges players. Random events can occur. (no Spoilers!)
Ranged Attack Damage│遠程攻擊力
New attribute: Ranged attack damage. This affects the damage of arrows and tridents fired by mobs.│新增屬性:遠程攻擊傷害。此屬性會影響生物發射的箭矢的傷害。
MTrolling
A fully configurable troll plugin with a huge variety of troll features for funny and chaotic moments on your server.
DynLight
dynamic lights -- held or dropped items, glowing or on-fire mobs, flaming arrows, etc. configurable and provides an API for other plugins
Lasomme
An Origin for the Origins mod. Uses quick air mobility to dodge attacks and inflict maximum damage.
RandomMobBoost
Give a Chance Reinforcement Every Mob.
Assassin Enchant
This adds an enchantment which gives you more experience when killing mobs
Void Vanguards
🛰️ ModJam 2025: A lore filled quest mod about conflict between The Vanguard and Voidborn.