Minecraft Java 1.21 Mods
Browse 577 free mods for Minecraft Java 1.21 — popular picks include Random Junk, Size shifter/Antman origin, Saltcraft.
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Random Junk
A mod filled to the brim with random meme features
Size shifter/Antman origin
Adds the size shifter / antman origin to minecraft
Saltcraft
A mod adding salt biomes, mobs, structures and blocks into Minecraft
Races (Fantasy Races)
Races/Origins Datapack by Evilonesw

Aetherium Items
Adds magical scrolls that grant unique abilities to weapons, turning ordinary gear into powerful tools of combat, mobility, and control.
Floristry
A mod about bees and breeding, but not like that.
Enderman Support Class
Allows endermen to aid nearby hostiles in their fight against the player!
Minecraft Dungeons Enchantments
This datapack DOUBLES the total amount of available minecraft enchantments!
FullXaos_RPG
⚔️ RPG skills & dungeons 🌋 Portal dungeon RPG ⚡ Optimized RPG plugin 🏰 MCMMO-style RPG 🌀 Skills & portals RPG

BloodInfection999
Delve into a world ravaged by a terrifying blood infection, where once-peaceful creatures are corrupted and your own survival is constantly under threat.
Random Size Mobs
Mobs spawn with unique random sizes, affecting their HP, damage, and loot. Includes dynamic growth mechanics!
More Fox
New foxes with new mechanics
stupid baby mod
!! LOUD NOISES !! a mod that adds a bunch of different baby mobs, items, blocks, weapons.
Kaths Teleporter
Create teleporters to any location even through dimensions. Can teleport with mount, pets and groups.
Simple Gravity Changer
This datapack adds a function to change the gravity of the world.
Leafs Crucible - Ice and Fire
Leafs Crucible: Ice and Fire - Explore a magical world of ice and fire, featuring unique temperature mechanics, powerful new weapons and tools, and challenging hostile mobs!
Terraria Items
This project adds some items and weapons from Terraria and the Terraria Calamity Mod into Minecraft.
Oculus of Silence
Oculus of Silence is a magical survival artifact that repels nearby hostile mobs for 30 seconds
Project: Drynox
A bunch of deadly items. Don't eat. WIP
MythicFusion
MythicFusion integrates new conditions and mechanics from other plugins to MythicMobs and more.

Allay Companion
Replaces the totem of undying with an animated allay entity that moves around with you.
Dababy Mod 2
Explore an alien dream like world, encounter unique mobs, use new mechanics, and see Dababy's face on every texture
MetinStyle Mods
A mod inspired by classic MMORPG gameplay, bringing new combat mechanics, items, and progression systems into a voxel-style world.
Legends Awaken
A mod that brings together legendary worlds into one immersive experience.
StoneCutter damage fix
This mod adds damage from the stonecutter to the player if they are standing on it, and it works on any type of mob.
Simply Advancements
A datapack that expands on the vanilla advancement system by resurrecting old achievements, creating parity with Bedrock ones, and filling the gaps in progression - as well as adding some fun new challenges!
Netherlock'd
Locks the Nether behind the Wither, turning the Nether portal into a sealed gateway that must be unlocked by defeating the guardian within.
Beta's Better Enchantments
Removes some repetitive enchantments and adds new function to old ones
cherri's Minesweeper
Fully functional, customizable, multi-dimensional Minesweeper in Minecraft.
Sanity System – Psychological Survival
A subtle psychological horror mod that adds a hidden sanity system, immersive hallucinations, and fear-based survival mechanics to Minecraft 1.21.4 Fabric.
SilkySpawnersX
Lets players mine and collect mob spawners with Silk Touch pickaxes.
ChristCraft
Removes magic and spiritism where possible.
Minecraft-The CATASTROPHE mod
Adds new bosses to the base game, and overhauls the progression
wand works
This mod adds new fun and interesting equipment and utilities to make the experience better
Mob Curing
Revert mooshrooms, pigmen and witches back to their previous forms.
Crystal Town Mod
A mod that adds a slightly elaborate universe! A couple of dimensions, lots of interesting mobs, progression, magic wands and toxic weapons!