Minecraft Java 1.21 Mods
Browse 58 free mods for Minecraft Java 1.21 — popular picks include Curtain, ExecutableItems, Item Components.
Updated daily
Curtain
A Forge mod like fabric-carpet
ExecutableItems
Custom Items, ExecutableItems plugin allows you to fully customize every aspect of your items, and adding unique activators on your items !
Item Components
Change the default components for items! Server-side and data-driven, refreshes on /reload! (and does it properly)
Piglin Conservatory v3.0
Adds a news structure to the Nether, The Piglin Conservatory, along with a new Obsidian Apple, Dragon Fruit, Toxic Mushrooms, Hoglins' Fossils, Corrupted Emerald and a New Music Discs!
DreamMasaAddition
An add-on mod for Masa's mods, Tweakeroo, etc.
Create: Dimension, Steamworks Realm
Create: Dimension, Steamworks Realm introduces a brand-new mining-focused dimension, designed for automation and large-scale resource extraction. This world is filled with rich veins of ores
*NEW* VM computers
This project adds working computers as virtual machines in Minecraft, this is a fan made port of original VM computers by Delta2Force
PlayerProgress
PlayerProgress is a Minecraft datapack that introduces a leveling system. Earn UP from activities like mining and combat to level up and gain new abilities and rewards.
World Loading Tweaker
Allows you to change the spawn chunk radius of Minecraft, either speeding up loading or improving spawn quality
VS Unofficial Neoforge Port
An unofficial NeoForge port of the Valkyrien Skies 2 physics engine to Minecraft 1.21.1.
Mob AI Commands
A standalone version of the commands added by Mob AI Tweaks mod
Deltapack
A deltarune datapack adding content from dark fountains and dark worlds to the roaring knight. As well as items and spells like snowgrave and the shadow mantle.
RandomDirtDrops
RandomDirtDrops is a fun Minecraft data pack that makes breaking dirt blocks drop completely random items from the entire game — from diamonds to dragon eggs! Perfect for chaotic survival challenges and OP item speedruns.
Silicate
A library providing powerful client-server-agnostic predicates with a simple API.
1HP Challenge
1HP Challenge, without the ability to resurrect even using commands.
ScoreboardPL
A fully customizable scoreboard plugin with 25+ placeholders — supports Vault, LuckPerms, live TPS, coordinates, stats and much more.
anti chest esp donut smp
DonutAntiChestESP Advanced Chest Visibility Protection for Minecraft Servers
Reduced Invincibility Frames
RIF stands for 'Reduced Invincibility Frames.' The purpose of this mod is to reduce iFrame duration or disable it.
PySpigot
A Python scripting engine (plugin) for Minecraft servers running Bukkit or one of its forks (Spigot, Paper, etc.).
Customizable Dragon AI
Useful Datapack to customize the Ender Dragon's AI
Draventh Ores
⚒ Advanced Tier Ores & Equipment This mod expands Minecraft’s survival progression by introducing 15 new late-game materials, each with full armor and tool sets. The goal of this mod is simple: Extend progression beyond Diamond and Netherite with a struc
More Villages Datapack
Adds more villages to the game.
Kappa's AntiCheat
A lightweight Fabric anti-cheat designed for high performance on large-scale servers.
Big Items API
A really simple library that allows developers to make items take up more inventory slots.
Merged Items
Adds a merging mechanic for items. Items can 'store' other items and will inherit their attribute modifiers.
CC: VR
CC: Tweaked x Vivecraft Addon
Sinytra Connector Crash Fix
Fixes crash in Sinytra Connector
ItemDisplayPlugin
This plugin allows the collection of items dropped within a 5-block radius in Minecraft, merging the items with the same type and displaying their quantity in the item’s custom name. Items that cannot be stacked, such as enchanted equipment (e.g., swords,
Deltatime
Keep track of the real time even on laggy servers (uses the worldborder method)
IBREALISTIC
The Unofficial fork of OpenBoatUtils, original by o7moon. This mod added MORE realistic rally aspects for IBREAL or another server
Music Collection - Just Shapes & Beats
Adds a new musical experience, New Fragment + New Record Mold + New Structure "Music Shack" + 15 New Records! + New Crafting + New Achievements + Secrets...
Auto Logout
A mod that automatically kicks yourself from server once a player gets in range of blocks that u set, allows u to afk farm and play safe.
CoffeeProxy
This mod allows joining Minecraft servers via a SOCKS/HTTPS proxy (Fabric)
Easy Freezing
A mod that allows you to Freeze Time around you at will! Try with multiplayer and things get confusing fast!
Espoir SMP
The plugin's twist is ⚙️ How the system works: 🧿 You start with 3 souls. 🔻 Each time you die, you lose a soul. 💀 At 0 souls, you become a ghost: spectator mode for 24 hours. ⚔️ Kill a player → you steal one of their souls, if you don't already have all
SoraxPhysic
Physics Engine in a Minecraft Plugin - 1.21 paper