Minecraft Java 1.21 Mods
Browse 1,029 free mods for Minecraft Java 1.21 — popular picks include BioLock Scanner, EnergyRaids, RestrictMob.
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BioLock Scanner
BioLock Scanner is a NeoForge 1.21.1 Minecraft mod that adds a player-only redstone scanner for secure doors, bases, and automation builds. It can be mounted on floors or walls, has a configurable detection radius, and prevents mobs from triggering
EnergyRaids
Custom raid system with waves, mob spawners, damage & kill tracking, top placeholders.
RestrictMob
RestrictMob. It provides server administrators with a streamlined system to define Safe Zones where hostile and neutral mobs.
LeashedMobsTeleport
Teleport leashed entities across dimensions and allow leashing any type of mob with advanced protection.
Create: MHI
Create: Monster Hunters Industrialization aims to make you design mob farms to progress through the Create Mod.
AgonyMinus
Adds various gimmicks and items and critters and whatnot
More Collectables by Memontanik
This Project Adds More Stuff to Collect, Craft, Use and Break! It could be a fun experience with this Project!
Broomba
Silly little Minecraft mod that adds the ability to harvest brains from mobs, which you can put in roomba-like robots
Caravans
Working pack-animal caravans for Paper and Purpur. Llamas follow in formation, carry 90 slots across saddlebag pages, run loot home on their own, and stand guard. Lead camels, wolf protectors, donkeys, and mules included.

The Silly Mod
A Minecraft mod that adds lots of new silly things!
Create&Stuff++
A cool create modpack for you, your friends and pets
RavenMobs
Zone-based mob leveling system with economy integration and dynamic stats
WardRegion
Region protection plugin for Minecraft 1.21 with wand-based selection, GUI management, whitelist access, flexible flags, particle previews, and MySQL storage.
Aegis system
a simple and very customazable rpg plugin that includes mana, abilities, classes and more!
Replicator First Type
Evolving slimes harness solar energy and develop genetic mutations. Predatory spiders create evolutionary pressure. Features 12+ genes, horizontal gene transfer, DNA scanner. Watch natural selection in your Minecraft world!
RedstoneSpawnersReloaded
RedstoneSpawnersReloaded is a very simple plugin which makes Mob Spawners toggleable via a redstone signal.
P_Comandos
A plugin for commands in items!
Learnopolis
A new world full of instruments and enemies!
HARD NEW
A technologically advanced game with a focus on realism! Shaders, automation, smart NPCs, hundreds of animals, and hardcore bosses. Explore this vibrant world with your friends using the built-in voice chat.
SafeAFK
Monitor your Minecraft health remotely with a companion mobile app.
Monster potion
Monster Energy Drink instead of potions to refresh yourself
AvAI
This mod replaces the conventional Minecraft objective system with a basic decision tree.
OrjusBlockStats
OrjusBlockStats is a powerful and lightweight flexible block tracking plugin designed for survival and competitive Minecraft servers.
CreaMon
A Minecraft modpack focused on Create automation, Cobblemon adventures, exploration, creature catching, and quality-of-life improvements.
Villager rollback
A datapack that is able roll back villagers that recently died. All of the villagerdata is saved.
Precast Structure
Add a mechanic to automate repetitive building projects.
java gotchi
It is a new mob. Something like a tamagotchi where you can interact and play with it. It has a fully working health,happiness,energy and hunger system. It is also associated with a university project and expanded into minecraft
NxControl
NxControl is an advanced staff plugin that lets OP players control players or mobs using simple keybinds, with GUI, bossbars, and freeze system built-in. It’s lightweight, powerful, and perfect for moderation, trolling, or cinematic gameplay.
Computer Guy's Mod
Computers, Rats, Mice and more!
Alienated
Adds a whole new planet to explore!
technis
TECHNIS is a voice-activated AI assistant for Minecraft 1.21.4 - like Jarvis. Speak to the mic, TECHNIS sees your inventory, health, mobs, and replies with speech. Animated orb HUD, proactive alerts, info panel, in-game config. Requires Groq API key.
MCGun
Add Some Fun About Guns!You Can Craft Them!
SnowmanBro
Take control of your own snowman buddy, launch snowballs, and turn your world into a chaotic snowball fight playground.
Quality of Laik
Adds a lot of quality of life changes to as much of the game through datapacks as possible!
NPCSpeak
AI-powered Minecraft NPCs that actually negotiate, persuade, interrogate, and quest, not just chat.
AIWarriror
different AI, PvP, etc. will be added in the next updates.