Minecraft Java 1.21 Mods
Browse 21,951 free mods for Minecraft Java 1.21 — popular picks include BetterCustomDrops, Twerking Plants, Piston Sound Mod.
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BetterCustomDrops
CustomDrop allows you to create custom drops from blocks and mobs
Twerking Plants
Twerk for those plants. Twerking encourages faster plant growth

Piston Sound Mod
Brings back the old 16 block range of piston sounds.
Reworked Golden Tools
Golden tools break multiple blocks at once. (Pickaxes mine 3x3, axes fell entire trees, and more)
SingleMacePlus
Only ONE Mace can be crafted per server.
Concrete Items Curing│混凝土物品固化
Throw the Concrete Powder into the Water for become Concrete.│將混凝土粉末物品丟入水中將其轉換為混凝土。
Сraftable totem by Bester_play
Adds a custom Totem of Undying recipe using diamonds, emeralds, and gold
Forgetful Vaults
Reset vaults so players can open them multiple times. Configurable.
No Wandering Trader ❌
Disable Wandering Trader in Minecraft by preventing its spawning and removing any that appear in the world
Lifeless.jar
My very first ARG horror mod so expect some bugs allong the way. Lifeless.jar is a Paranormal mod that was described as a girl trapped in the game.
Craftable Trial Key
Now you can craft your Trial Keys and no more waiting for vaults to be avilable
Skill Point Items
Adds items to LevelZ that increase your skills
Dirt To Diamonds
A datapack that lets you turn dirt into diamonds!
AntiXray Remasterd
Antixray and alot of other features
Amethyst Enchantments
Adds 22 custom enchantments, many changes to existing enchantments, and a new altar that allows enchantments to be moved back onto a book from an item.
Dimension emptiness
Prepare yourself for a harrowing journey with the "Dimensions void" data pack! This pack introduces a nightmarish dimension known as the Void, a realm where no soul remains after the inevitable demise of all living things. Here, darkness reigns supreme, an
Realistic Terrain Movement
Movement speed varies by terrain block, boats break in oceans, at mountain peaks high-altitude winds push players around. Designed to encourage the use of external transport mods, particularly Create Aeronautics.
MCRanked
Adds a ranked system to Minecraft. Tracks player wins, losses, and rank points. Matches players with similar ranks. Displays leaderboards and rank progress.
Anvil Falling
This data pack can continuously spawn anvils above the players' heads.
Vanilla PVP presets
You can switch between Vanilla and Non-Vanilla modes. DrDonut uses this during his streams. This could be used for when you would want to be in vanilla mode or non-vanilla which is basically PvP mode.
DinoBrik's Spears
Spear weapon in Minecraft! Bonus melee reach and throwable. Comes with custom spear enchantments alongside classic sword enchantments for an enhanced combat and utility experience.
Vanilla Combat Improvements
Adds 6 new weapons with custom abilities and effects that refresh vanilla combat.

Collateral
A simple vein mining mod
TFC Glass Workshop
Adds a TFC-style mechanical glass press for batch glass production, reusable molds, ceramic molds, and powder-dyed glass recipes.
Random Player Size
Randomizes every player's height for more variation
Create: Netherrack Recipe
A simple mod that adds a Create mixing recipe to craft Netherrack from Andesite and Nether Wart.
New Sword Blocking
Restores and enhances sword blocking in Minecraft 1.21.5 - 1.21.8!
HolidayHunt
Extremely simple holiday hunt plugin! Made for Easter, Halloween and Christmas! Custom skulls and sounds supported as well!
Leash Master
Leash Mobs and Players
truePortals
Managing the availability of nether and end portals
VaultEconomy
VaultEconomy (Alpha) An alpha economy plugin for Java 21 supporting Spigot, Bukkit, Paper, and Folia. Adds support for custom currencies with Vault integration.
Good Luck!
Good Luck gives purpose to the luck mechanic by making loot tables more influenced by luck and by making the Potion of Luck accessible.
Cobblemon Pasture Limit
Server-side pasture block management for Cobblemon. Set rank-based limits, per-player overrides, species caps, and blacklists to prevent farming and protect your server economy.
BasicallyParticleModels
a not very simple serverside fabric mod that can display 3d models as particles

Trickster Math Tricks
Adds more math tricks and fragments into Trickster
More Villages Datapack
Adds more villages to the game.