Minecraft Java 1.21 Mods
Browse 12,367 free mods for Minecraft Java 1.21 — popular picks include EndraQuest Tweaks, Freight Ghast, Mob Loot Variants.
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EndraQuest Tweaks
Fixes LevelZ skill requirement bypass bugs, prevents Ancient Debris duplication, and limits mob farming exploits.

Freight Ghast
Gives happy Ghasts the ability to hold chests.
Mob Loot Variants
This data pack changes the loot table of mobs that have variants. Cold and warm variants give different amounts of items.
Spawn + Fresh Animations
This is a "Fresh Animations" patch to allow a couple of "spawn" mobs to work with them
Nova MC Companion
An AI companion who talks, fights, mines, builds, and explores with you. Voice-controlled. She feels like a real friend.
ForceField
Push pesky players, mobs, and even blocks away from yourself!
Item Caster
Add-on MythicMobs for Casting Skill with Item.
Double Hit Damage
Doubles mob and player hit damages.
Manual Car
A simple car with manual transmission
Animal Pen
Who doesn't love making entities simple to collect?
Wild Wonders
A Beta mod that improves world generation and adventure!
PlayerBatch
PlayerBatch is a Minecraft mod by W4Whiskers that depends on Carpet and allows you to summon multiple bot players at once. It supports up to 256 bots by default, with the limit configurable in the config files.
Nice Baby Mounts
Adds a chance for some Mobs to spawn with a Baby Mount on their backs.
LagShield Ultimate (Anti Lag)
The intelligent performance modulator for Minecraft Server. LagShield Ultimate uses Arclight-safe async processing to dynamically regulate mob AI, chunk density, and entity speed based on real-time server stress (MSPT). Stops lag before it happens.
Mobiomes
Aims to add tons of custom creatures, biomes, items, weapons, blocks, plants, foods, structures and more
Temples & Templates
Adding more boss encounters and tools to spice up your minecraft playthroughs!
FlashWool
Simple flash wool texture for ALL VERSION. (And wool carpet for 1.6.1 to 1.21.4)
Ultra Chunk Collector
⚡ The Ultimate Chunk Hopper - Instant Item Collection & Stacker Friendly! ⚡
Cursed ghasts
mod makes ghasts spawn in the overworld and changes their textures and sounds
Cobblemon: Rare Salty
Have you ever wanted to lower your Pokemon's level? Have you ever looked at your team and thought: "What if my Dragonite was level 3?" Probably not. But now you can.
Piglin Brute Drops│豬布林蠻兵掉落物
Piglin Brute will drop Netherite Scrap when killed.│豬布林蠻兵被擊殺時會掉落下界合金碎片。
Modernized Hostiles
Retextures of the classic Hostile Mobs to match the modern art style.
Lantern's Peace
🔥👻 Prevents mob spawning with soul lanterns & other soul light sources

Xtabay's Villager Creator / Generator
Create custom villagers and edit them easily
Cancel Jump Critical Strike [PySpigot]
Removes the bonus damage to mobs caused by jumping
FZero Drops
A adventure focused datapack I made for personal use. I just wanted to make it available to others.
The Juan Mod
The biggest update: Maple Wood, Lavender, and Juan.
Relics of a Fallen
Defeat hostile and neutral mobs to collect powerful relics with unique abilities.
IKEA aftonsparv plushie
This mod brings the beautiful creature named Aftonsparv from IKEA into minecraft
Lookism
A Minecraft Mod based on Martial Arts and PTJ Verse

Sensible Sleepiness
A mod that adds further per-player customization for Phantom's behavior.
Coated Blades
Potion effect tipped/coated weapons that inflict effects on players and mobs.
Soul Cage
Soul cages for capturing and releasing mobs
Why not use iron instead? (arrow recipe)
"i should be able to make arrows out of iron too!" Well... NOW YOU CAN! instead of flint use iron and shot some mobs!
Rats: Reborn
A relaxed reimagining of the Rats mod, focused on building a cozy rat settlement and automating your base with cute companion rats.
Infested Netherrack & End Stone
INFESTED Netherrack & End Stone to End and Nether Dimensions with Spawn Mob System (Endermite and Blaze) (infected)