Minecraft Java 1.21 Mods
Browse 1,108 free mods for Minecraft Java 1.21 — popular picks include Iron AI, A Crazy Adventure: Science & Survival, WorldSystem.
Updated daily
Iron AI
A customizable AI chat assistant for Minecraft that can learn words, respond to messages, and be taught new responses with simple commands like /ironai teach
A Crazy Adventure: Science & Survival
A blocky landscape with forests, mountains, a backpacked character facing a machine, and a purple Nether portal under bold white title text.
WorldSystem
Give players the ability to create their own world to play on, without using different servers. (per player worlds)
StorageSystem
A simplified plugin version of Applied Energestics 2's ME storage networks
Logout Dummy
A NPC dummy represents offline players, showing their skin and carrying their gear.
Relocators
Craft Relocators to pick up and move containers such as Chests and Gamemode 4 Machines.
Mini 1.21 Loot Farms
Extension pack for Mini Factories! Containing: 1 Mini Wind Charge Farm and 2 different Mini Vault Loot Farms to get a bigger reward after finishing a vault run!
Biomorphosis
A mod about mutations and evolution, where you control an organic ecosystem, creating structures and creatures from living matter. Harness biomass to develop your colony, but be prepared for the dangers your experiments may bring
Simple Batteries
Adds upgradeable battery blocks.
kLocks
kLocks let's you lock chests, barrels, etc. easily!
Shimmer - Uncrafting Table
Shimmer is a data pack inspired by the Shimmer liquid in Terraria. It enables players to uncraft items whether in vanilla or modded gameplay, only by dropping them into a source water block near the bottom of the Overworld.
Ender Sender: Remote Block Depot
A mod which lets you move items straight to your inventory as you use them up, coming from a special kind of chest.
Applied Delight
A mod that allows Applied Energistics 2 and Farmer's Delight to work together!
Arcane Repository
Store your items and automate crafting with expansive libraries.
Lockable
Adds locks and keys to allow players to protect their items, or steal from others.
PolyTech
a server-side tech and automation mod for Minecraft 1.21.11, built on the Fabric API using Polymer. It introduces a comprehensive energy network and a suite of machines designed to process resources and automate crafting.
AntiNbtKick
A mod that prevents your player from picking up items that exceed the NBT data limit and prevents being kicked in general.
Arch's Aeronautics Exploration
A modpack focusing on exploring the possibilities of Aeronautics, combining aeronautics, create, mekanism, and refined storage.
Chest Transporter: Relocated
Move your chests around with ease!
Immersive Factory - Create and Immersive Petroleum
An immersive factory experience with Immersive petroleum and Create in the focus but with adding mods like Refined Storage. Currently around 120 Mods.
Masters Of Aeronautics
(Remake Of MrBeardStones Just Create SMP 2) Create mod and mekanism. With mass Storage and tech
CompassTrack
Track players in real time with your compass — ideal for PvP, manhunts, and survival. Includes cooldowns, permissions, and live updates.
XaerosMapPlugin
Xaero's Map plugin is a lightweight plugin for servers using Xaero's Minimap and Xaero's World Map. The plugin prevents different worlds from sharing or overlapping map data, ensuring that every world maintains its own unique map.
Strength 4
This mod give you strength 4 portion in your game/minecraft world this very use full to figth with you friend more damage more win
Expanded Data
Expanded Data Objects and Accessors
MaxGraves
Graves and more graves for your Minecraft server
EntityBatch
Entity Render Batching — sorts entities by type before drawing them so the GPU can render all cows together, all pigs together, etc. instead of switching between types randomly. Fewer GPU state switches = better performance in crowded scenes.
Kindling Age
Kindling Age enhances early survival with lightweight, vanilla-friendly mechanics that make the first days more deliberate without adding grind or hard gates.
Tome of Echoes
There's no better method of storing and placing blocks!
ManhuntX
Classic Manhunt included — but getting a bit old? Discover multiple new features and options you can enable to take your experience to the next level!
PlayerVaults999
PlayerVaults999 revolutionizes in-game storage by offering a seamlessly integrated vault system for Minecraft servers
NekoTech
This is a lightweight tech Mod themed around cats.
sidaHomes
A Donut SMP like fully functioned yet simple and speedy home plugin
Forming Press
Create a forming press to unlock more efficient recipes for all types of brick and charcoal.
Tom's Loot
This modpack adds a variety of loot tables and can be used by other mod developers for structure mods and other mods with loot tables as a basis.
World Repos
This mod lets you browse and download worlds from repos