Minecraft Java 1.21 Mods
Browse 2,773 free mods for Minecraft Java 1.21 — popular picks include Delta-calc, IFR25KU: The Institute of Fairy Research 2025 Kakera Unofficial, Magical Login/Register Skript.
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Delta-calc
DeltaCalc is a client-side utility mod for Cobblemon Delta that adds an in-battle damage calculator, expanded battle overlays, richer tooltips, and team indicators. It helps players read battle state faster and make better decisions without changing Cobble
IFR25KU: The Institute of Fairy Research 2025 Kakera Unofficial
A Minecraft mod that presents a possible world set in the MirageFairy universe.
Magical Login/Register Skript
Welcome your players in style! This lightweight Skript shows a centered welcome message and guides new players to register and returning players to log in.

oSzoukaua's: No loss XP
Drop all of your XP when you die and go recover it all!
Bending Poses (Elementals Addon)
Bending Poses is an addon for the Elementals mod that adds custom poses when casting.

Blade Oil
Adds oils that can be applied to weapons, boosting damage against certain mobs
Hyper! ඞ
Cursed and complicated tech 'n' magic mod.
Penomior
LeveL System and make your own build and fight with your friend!
BiomeBlade
Weapons deal bonus or reduced damage depending on which biome the combat takes place in, creating strategic territorial advantages.
[AN]Adaptive Nemesis
The dynamic difficulty balancing module specifically designed for integration packs aims to address the issue of difficulty imbalance in current mainstream integration packs, where the early game is too easy and the late game is too challenging.
Caseyy's Create Adventure
A lightweight modpack blending Create’s mechanical magic with MineColonies’ charming town-building for a cozy, creative experience.
No Enchantment Tiers
Removes the enchant levels/tiers by making all enchantments have a max level of I, similar to mending.
TheBoys:V-Awakening
This mod adds abilities from the TV series <The Boy>>, allowing players to use those abilities, including those of Train and Homelander.Future updates will introduce more superheroes and gradually refine the gameplay.Costumes for Train and Homelander hav
Theosis
Plugin-ready RPG survival with loot, gems, bosses & biomes. Thesis-style modularity. Multilanguage Apotheosis-inspired
Refined Combat
Rebalancing pvp in minecraft focusing on pvp mechanics in vanilla whilst improving on it with new enchants and mechanics Explosions rebalanced rare enchants added combat logging system added rebalanced elytra

Magical Weapons
Adds special weapons to Minecraft
SmeltedOres
Smelts ores that are mined instead of you having to smelt them
Enchantment Extractors
Remove enchantments from enchanted tools, armor, and weapons. But be careful, there might be unexpected side-effects.
Teyvatcraft
A Minecraft mod inspired by the HoYoverse game "Genshin Impact."
The Alchemist's Touch
The Alchemist’s Touch reworks Minecraft’s potion system with new effects, early-game ingredients, and advanced alchemical interactions.
Trickster LISP
LISP Transpiler for Trickster mod
Lingua Mundi
Learn the Language of the World, build modular spells, enjoy fantastic visuals.
JustFly
A simple and elegant flying mod for Minecraft 1.21.4 and higher with NeoForge that allows players to fly like in Creative Mode with fall damage protection.
DC's Simple Occultism
A variety of items and rituals with an occult theme, as well as vampirism mechanics and several new weapons and armors.

Gravity Book
Adds a book that when you hold it gravity is flipped, similar to when you drink the Gravity Potion in terraria.
SOULS PLUGIN (Discountinued)
Plugin that adds to your smp new mechanic of souls souls to server !
Combat Numbers
See how much damage you deal, with style! Different indicators for different damage types.
SAO Particles
A mod that spawns particles when mobs die, just like in SAO!
Roudey's Re:Enchanting
A rework of the enchanting table with various improvements and additions, while keeping it vanilla friendly!
Staff X-Ray
A powerful and optimised X-Ray for your server's staff
Don't Kill Friends!
Protect your tamed animals from damage, even when you're offline! Lightweight plugin with HEX color support and full configurability for Minecraft 1.16.5-1.21.11.
Eggo Cards
Lots of different Cards that give you different abilities.
Sleep Animation: Immersive Sleeping Plugin
Simple: Adds an animation while the night is skipped by players sleeping, making things really more immersive!
Karma's Cobblemon Mechanical Magic
A modded Minecraft server blending Cobblemon and Create with bonus magic and tech from Mekanism and Mystical Agriculture

Toukun's Mod
This mod is the culmination of what my friends and I think would be fun to include in Minecraft as a Mod.
PumpkinPVPReloaded
Add special exploding pumpkins to your server to be used in pvp. Highly customizable!