Minecraft Java 1.21 Mods
Browse 3,655 free mods for Minecraft Java 1.21 — popular picks include Wandering Trader Plus, Fish Fix, MaceCooldown.
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Wandering Trader Plus
Allows the player to turn Wandering Traders into villagers with their respective job site block. Also...

Fish Fix
Amends hardcoded sea level assumptions to fix aquatic mob spawning.
MaceCooldown
This is a plugin that adds a cooldown to the mace
MindOfTheColony
Mind of the Colony is a mod that transforms your settlement inhabitants from silent workers into living, thinking individuals. This project moves beyond typical gameplay mechanics to answer a simple question: what are your colonists really thinking?
PhatLoots
The official continuation of the PhatLoots plugin which provides highly configurable loot for all.
SMP Silk Spawner
Silk Touch spawners implemented in a vanilla/smp friendly way! Fully configurable with different things that could happen with breaking spawners
Repairsmith
Adds a repairsmith villager that can repair damaged items for emeralds
The Broken Script Plus
Additional events and behaviors for existing entities of The Broken Script
Combat Expansion V4 REWRITTEN
This mod adds new weapons, tools, mobs, mechanics and much more, while maintaining the vanilla style of play and compatibility with other mods.
Phantomcatcher
Way to protect yourself from phantom spawning
Variating Mobs
Mobs can spawn with varied stats! Aswell as a few more related things.
Ekipa Mod
The mod adds a lot of different things related to the team, eg. Ice cream of the team and their extensive mechanics, drinks, party CDs, mobs (no nowciax), notebooks, boxes, phone cases and many other things.
No Skeleton ❌
Disable Skeleton in Minecraft by preventing its spawning and removing any that appear in the world
Pulchra Occultorum
This was a mod all about Victorian Science, Carneval and Occultism. Features are put on hold for now.
Direbats
Adds bigger, annoyed bats that steal your stuff!
Entity Barrier
Toggleable barrier blocks and pressure plates that allow you to select up to 4 entities or groups.
Settling Trader
Converts wandering traders into villagers as a way to populate new villages with different biome variants
Pebblits
A mod created specifically to be ruined by Knarfy's audience. What could go wrong?
True Boss Music
Adds much needed boss music to Minecraft's Bosses!
Prisma Craft
A massive project that greatly complements the idea of Prismarine and improves the mechanics of fishing. New tools, armor, blocks, mobs, mechanics and structures.
Mob AI Commands
A standalone version of the commands added by Mob AI Tweaks mod
Golden Dandelion Backport
Adds the Golden Dandelion to earlier versions of the game
Mob Dice Attributes
Every mob. Every spawn. A fresh roll. A mod that dynamically converts mob attributes into a range using tabletop RPG dice mechanics.
Creeper Backguard
Make Creepers ignite only within your field of view.
CobbleMorph
Morph into any Cobblemon you'd like!
TradingPlus+
Enhances trading by adding over 280 new trades for villagers, providing a richer and more varied gameplay experience.
Middle-Earth Additions: Npc
A mod that transforms the citizens of Middle-earth into interactive merchants and traders.
Allay, behave !
Tell your allays to stay still, and other QoL tweaks.

Ashen's Better AI
Improves mob ai, by adding mob jumping, a foodchain, and more!
BedSheet
Carpet unofficial NeoForge port. Take full control over your game.
Killer Bunny Name Tag
Naming a rabbit "The Killer Bunny" will turn it into a killer bunny
Creeper Drop TNT
Creepers drop tnt, tnt can be uncrafted
LovelyLib
The robot-specific library shared by all Lovely Robot variants. Handles the robot type system, shared animation profiles, and save migration so that Legacy, Tribute, and Reboot don't duplicate core logic.

Cobblemon Picnic
A picnic table that re-rolls nearby wild Pokémon spawns for shiny hunting — plus a shiny aura, rare-spawn protection, peaceful seating, Pokémon care, bundled furniture and trainer battles. Fabric & NeoForge.
NightTime
A horror and challenge datapack made for only the bravest to try.
Craft Trial Spawner
Adds a crafting recipe for Trial Spawners