Minecraft Java 1.21 Mods
Browse 617 free mods for Minecraft Java 1.21 — popular picks include Instant Win Button, Garfeldi [Cobblemon], Chefmakes' Custom Peaceful.
Updated daily
Instant Win Button
Adds an instakill melee weapon... or so you thought.
Garfeldi [Cobblemon]
Back in 2024, I made an April Fools' addon for Cobblemon just called "Garfeldi", ironically posted to the Cobblemon server on April 2nd. I found the files, like, 10 minutes ago, made minimal changes, and decided to post it to Modrinth.
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.
Freeze Mobs on look
When You look at mobs they freeze
The Lost Levels
The Lost Levels is a Backrooms-inspired horror and exploration mod that adds several liminal dimensions to Minecraft.
Carpet-dwk-Addition
This mod adds new rules to /carpet
Quiet Apocalypse
Atmospherice, cosmic horror mod (megalophobia)
Solid Entity Hitboxes
This server-side mod makes certain entity hitboxes solid
Chickens do FLY
Chicken do fly! Allows you to glide down with chickens
ZeeInfused
A competitive PvP plugin where kills reward you with permanent positive effects and deaths curse you with negative ones. Inspired by the Infuse SMP created by InfamousJJ and Dione
Usefuller Ghasts!
Configure the speed of happy ghasts (up to double speed) and craft an exotic new item that makes your happy ghast shoot fireballs!
Hotter Mania
Mod updates savannas, deserts and badlands
Ranold's Better Squids
Improves Minecraft squids!
Everything's Exploding!
Make all mobs/animals behave like the creeper
Chicken Jockifier
A Minecraft Movie based data pack that turns adjacent baby zombies and chickens into chicken jockeys
Hacker Villager
Place a command block next to an unemployed villager and the villager will now offer you unobtainable items!
Maximum Difficulty
A mod that increases the difficulty of Minecraft to its maximum, reaching 32-bit integer limits.
Better Spawn Eggs craft
This data pack adds the ability to craft spawn eggs and spawners
Experimental Mob AI
Modifies behaviour of several mobs to increase difficulty
Everything Explodes
Someone has strapped explosives to nearly every entity!
Silly Stuffs
Become the greatest businessman in all of Minecraft! Expand your business empire, sell your products, mine plastic, eat burgers, and have fun!
A Completely Ethical Mod
Removes most unethical behavior that players can perform on their mobs.
Stronger Fishing Rods
A Minecraft Paper plugin that makes the strength of fishing rods configurable
Mob Lifesteal
This makes mobs steal your hearts when they attack you! Kill a mob to regain one heart.
Everyone baby
A datapack that makes all mobs become a baby, even those that can't in the basegame. Use this datapack if you want the cutest experience :D.
Toxin Accumulation│毒素堆積
Bogged's arrows now inflict a more deadly poison.│現在沼骸射出的箭矢會造成更致命的劇毒。
Warriors
You can get new friends that fight for you
Rage twist
A simple datapack that adds a ragebar that can be increased by attacking mobs and that makes your attack damage increase.
MobHat
Ever felt like your head was missing something? MobHat is a fun and lightweight plugin that lets you wear almost any creature in Minecraft as a hat!
More Realism (MR)
This project helps you experience your world more realistically.
Something Watches 2.0
A slow-burn horror mod that transforms your world into a paranoia-inducing nightmare. Featuring custom entities, random horror events, creepy signs, screen glitches, a horror dimension, and admin troll commands. Something is always watching.

Sender's Return Policy
A mod that allows you to specify which items/projectiles can reflect redirect-able projectiles such as Ghast fireballs and Breeze wind charges.
Warrior Expansion Mod
It adds new fighting mobs to the game
Accurate Mob Sizes
The Accurate Mob Sizes datapack makes most real-life mobs closer to their actual size, making Minecraft feel a bit more realistic.