Minecraft Java 1.21 Mods
Browse 606 free mods for Minecraft Java 1.21 — popular picks include The World Of Bob, Weird_Update, BulsciCraft.
Updated daily

The World Of Bob
A silly mod themed around a new mod named bob, that adds bob versions of Minecraft mobs and even a bob dimension!
Weird_Update
This mod is Intense and weird...
BulsciCraft
Enjoy this brand new mod that adds New Dimensions, Mobs, Items, Blocks, Unusual things and even a bossfight...
Lafiński tuffiński (lafless)
Adds lafless the youtuber to the game!!!
NaturalMobs
deletes monsters and makes mobs more natural
SyEnhancedMonster
A Paper/Purpur plugin for enhancing monster difficulty on Minecraft 1.21.x servers.
TESTIFICATE Villagers
Brings back Minecraft Old Beta's TESTIFICATE Villagers, recreated by DandiMC.
That Bird That I Hate
Makes parrots randomly repeat what you said in a funny way!
MonsterScaler
MonsterScaler adds dynamic difficulty to your server! Monsters level up based on time/distance, gaining boosted stats, enchanted gear, unique debuffs, and triggering server-wide events like Blood Moons and Invasions.
Random Stuff (W.I.P)
this mod adds a lot of random stuff
simulator infection epidemic crisis
apocalyptic zombie infection simulator that transforms servers into a pandemic survival experience. Features progressive infection spread, contaminated players, quarantined villages, multiple zombie variants, vaccine crafting, and crisis events.
Kill or die
A recreation of the datapack used in NewKiddo’s “Kill or die” series
Overlord_guardian
want more difficulty? more mobs? this datapack has it all plus a designated guardian that can be every mob!

SpyGlassMeData
Datapack that is used by the SpyGlassMe mod.

randomitems-mod
Adds /randomitems, /randommobs, /randomweapon, /randomarmor, /randomtool and /randomquest commands that periodically give random items, spawn random mobs, swap your gear, or assign 5-minute random quests with a boss bar and personal sidebar.
BoomPhantoms
Just a phantom… until it explodes 💥
Creepy Colorful
Creepers are now a colorful bunch thanks to Creepy Colorful!
Chariz's Mayhem
A Minecraft Mod That Aims To Add Fun Things Into Minecraft, Such As New Mobs, Bosses, Weapons, Tools, Armor etc. Created By The Maniac Himself, DarkChariz

The Copper Joke
This Datapack makes silly changes to the new Copper Age Minecraft update.
Mobs Devolve
Mobs devolve into weaker mobs when killed, with trigger function to change multiplier.
Being Alone (BE)
This mod makes you feel alone... because you are...
Mahan's Mod
This Mod is a Random Mod Of What My World Will look like.
Wet
Give entities fire resistance for 5 sec when standing in water or rain.
hEndermanFix
Automatic Enderman targeting fix for Paper servers that keeps Endermen focused on nearby Endermites with configurable radius, AI options and lightweight tracking.
Pointless Emeralds Stuff
Pointless Emerald Stuff that nobody asked for
Revenge of the AXOLOTLS!
If you kill axolotl you die... I mean they are defenceless...
Blood Moon: Night Hunt
Automatic Blood Moon nights, stronger mobs, new cursed enemies, weapons, charms, and rare loot for Minecraft Fabric.
World Evils
This project adds the world evils from terraria!
Monster Rework
A datapack which reworks monsters and their spawning while also while also adding survival elements. All to make the game a more interesting experience.
Bob's Datapack
This datapack is basically a few weird addons that I added to minecraft while I was sick and off my meds. It adds (semi) realistic injuries for players and mobs and a few other things.
Chaos Hunter
A chaotic Minecraft datapack that turns every mob kill into a randomized effect lottery.
Only Jetpacks
This mod adds jetpacks that the player can use to fly around, as well as a new way to play the game where you can make it where every single mob in Minecraft has their own jetpack, creating a world of chaos.
mc is too ez
A survival difficulty mod that makes Minecraft harder, more punishing, and less forgiving.

Scute Force
Craft mount armor with scutes!
Damage Dummys
Adds Damage Dummys for each tier of armor that display how much damage was delt to them
Mod but my Friends decided what's in it
lots of stuff, a huescape dimension, dragons, epic cave biome with game-changing mob, eldritch horror spider, Son Goku and more!!!1!!!