Minecraft Java 1.21 Mods
Browse 3,674 free mods for Minecraft Java 1.21 — popular picks include The Lost Levels, Speed For Ghasts, Faster MC.
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The Lost Levels
The Lost Levels is a Backrooms-inspired horror and exploration mod that adds several liminal dimensions to Minecraft.
Speed For Ghasts
Give potions of swiftness to Happy Ghasts to make them fly faster.
Faster MC
Plugin that tweaks the game to make it slightly faster to complete.
AI Friend by Kurzer
AI Friend adds a new NPC to Minecraft that communicates with you using real artificial intelligence via the OpenRouter API. Ask it anything, give it tasks — it will respond, move, and interact with the world!
Craftable copper golem statues
Adds recipes for all variants of the copper golem statue
Origins: Slimeling
Origin datapack that adds the Slimeling, an origin based on the Slime.
Chefmakes' Custom Peaceful
This is a peaceful mod for people who might want more out of peaceful, not less
Uno Reverse Cow
"The ultimate 'no u' for Minecraft. Try to milk a cow, and she'll milk you instead. Get a custom bucket of 'YourName's Milk'!"
The Corrupted Past
He destroyed it all. He killed us all. He did this to us.
Say Goodbye to Wandering Trader│道別流浪商人
Now, when you hope for the next Wandering Trader, you don't have to kill the current Wandering Trader in a brutal way.│現在，當你期待著下一個流浪商人出現時，你不必以殘忍的方式殺死當前的流浪商人。
Freeze Mobs on look
When You look at mobs they freeze
Piglin Growth│豬布林成長
Baby Piglin will grow up.│幼年豬布林會長大。
Godmode- wither rework
This mod entirely reworks the wither boss in minecraft, with custom loot, moveset, etc
MobCap HUD
MobCap HUD is a lightweight client side Fabric mod for popular Minecraft Fabric versions. In singleplayer, it renders a compact overlay showing each spawn group's current population, calculated mob cap, and percentage fullness. The HUD is useful for check
Extended Gamerules
Finely tuned vanilla gamerules. Split overloaded gamerules like `mob_griefing` into groups of rules
Timothaty's Trinkets
Adds brand-new trinkets to wear and unique mechanics to discover.
Copper Golem Cosmetics
Lets you place any Items in the Copper Golems Head just like the Iron Golem placing poppy!!!
RayHeartVision
A high-performance, ray-traced health indicator for players and mobs. Zero lag, 100% accurate. Optimized for 1.21+.
HorseAddition
Unleash your horse's full potential
Cobblemon // Project: Spacetime
A Cobblemon side-mod that adds space-time distortions to Cobblemon, inspired by Pokemon Legends: Arceus.
Wither Skull Dupe
Wither skulls can be duped just like how armor trims can!
Summoning Eggs being Created
Adds balanced crafting recipes for spawn eggs. Each egg requires a Name Tag, a Soul Stone, and mob-specific materials. 11 craftable mobs: Cow, Pig, Sheep, Chicken, Zombie, Skeleton, Spider, Creeper, Villager, Wolf, Horse.
Copper warrior
This mod gives you the power to raise a faithful army of your own.
Evergrowth
This mod overhauls and extends existing Minecraft features, improving core systems and mechanics to create a more advanced and engaging survival experience.
Mob Mementos
Wearable accessories against annoying mob mechanics
Doomful
Mod that reworks Smite and Bane of Arthropods enchantments and expands upon them.
Entity Spectate
This is a simple Fabric mod that allows you to shift-right-click any entity (besides items) to spectate it on the client-side.
Overnight
Make your nights count. A Minecraft datapack and Fabric mod that accelerates crop, tree, and animal growth while players sleep.
Trail Timer
Reduces the Trial Spawner cooldown from the vanilla 30 minutes to a configurable duration — fully server-side, no client mods required.
Flurry
Some wintery additions for your server
Aqua Verse
AquaVerse expands aquatic biodiversity of minecraft
UltraRituals-Free
Offering altar system to summon bosses, free version
Anti Trader Despawn
This 1.21.4 Datapack adds a feature in which wandering traders with a NameTag on them DON'T Despawn!
Shedding Bones
Animals occasionally drop their bones on death
MobIgnore
Allows players to disable mob aggression towards themselves.
XPiglin
Makes old Piglin XP Farms still work after the patch. (Including old Item Drops)