Minecraft Java 1.21 Mods
Browse 134 free mods for Minecraft Java 1.21 — popular picks include Animal Pens, Moonlit Performance Enhancement Module, [SUC]Surival Useful Circuit生电全家桶.
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Animal Pens
Reduce lag and keep your animals neatly stored while maintaining full interactivity!
Moonlit Performance Enhancement Module
A optimization mod for Forge/NeoForge that overhauls Minecraft’s core event system. Eliminates reflection bottlenecks to accelerate event processing, enables instant language switching, and adds the /killmobs command to instantly remove all hostile mobs wi
[SUC]Surival Useful Circuit生电全家桶
生电全家桶 An advanced Minecraft survival redstone and automation modpack featuring Carpet and Masa mods.
Civillis Technology Compatibility
Adds compatibility between Civilis and various tech mods.
XP Stream
Absorb XP orbs faster without clumping, no XP loss, same vanilla feel
InstaRestock
Instant Restock or Insta Restock makes villagers infinite restock
Mobs Blocker
Disable the spawning of specific mobs in Minecraft
MojoLauncher FPS | Butterium Mobile
Optimization/FPS and quality of life. A client-like performance pack with custom menus/in-game HUD - now for mobile phones
AsguhoServer
Simply a really optimized server with the tools you need to build awesome contraptions. This modpack include mods such as carpet, syncmatica etc.
Progressive Mob Wave Activations - PMWA - Day/trigger-based control of mob spawning!
Progressive Mob Wave Activations PMWA - Limit any mobs based on day number, registered mob kills, and distance from world centre
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
Pojav Mobile
Pojav Mobile is a modpack for phones that allows you to optimize the process and add innovations for playing both multiplayer and single-player mode. Supports 1.21 on Fabric with useful mods for optimization and for convenient game on the phone.
Lusk
Modern, user-friendly skript addon, perfect for beginners and experienced developers.
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.
PerformanceX
Struggling with LAG??? Look no further! PX is an All-in-one server performance suite - 50 modules including item/mob despawn timers, AI throttling, lag machine detection, auto backups, Discord webhooks, Geyser support, and more. 1.8.8-26.2.
Elden Kingdom
Explore the enhanced Minecraft world with The Warseed—new mobs, advanced storage, and immersive magical and medieval landscapes, all centered on the Create mod.
Essential PVP Utilities
This mod contains many features to give you an advantage when fighting. Contains Fast Block Placements, Wind Charge Optimizer, [Beta] Crystal Optimizer, Faster Strafing and much more.
NMI - server side mods only
This is a collection of over ✨150+✨ server side mods that enhance your gameplay with voice chat, factions, economy, seasons, dungeons, buildings, mobs and much more. 🌌
Raycasted Anti-ESP
AntiESP; culls hidden entities, players and tile entities. Blocks Pie-Ray and Freecam. Formerly known as Raycasted Entity Occlusions/REO.
MTSAntiCheat
This anti-cheat ensures fair gameplay by verifying client mods and textures, blocking hacked clients and unauthorized tools, and giving server owners full visibility and control to keep their SMP secure and competitive.
TradingPlus+
Enhances trading by adding over 280 new trades for villagers, providing a richer and more varied gameplay experience.
MC-Reality Mod
this is a mod for Minecraft that seeks to transform the game experience into something closer to real life. It includes elements such as needs management (hunger, health, energy), an economy system, work, and the ability to interact with other player
VillagerLobotimizer
A plugin to lobotomize villagers stuck in a trading hall. Perfect for SMPs looking to increase performance without sacrificing gameplay!
All Of Utility 2
Redstone tech, carpet+addons, exploration, visual, QOL, building tools.
Horror OneBlock
OneBlock survival with horror mobs, dwellers, guns, shaders, and Create automation.
Custom Clear Lag
Optimal Fluidity, Enhanced Experience
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.
Simple Animal pens
A simple datapack that allows to store many animals in one block to reduce lag on the server. also available as datapack
INFERNO ADVENTURES
This modpack includes new world generation, new rpg classes, new structures, new weapons, new mobs and animals, new foods and ways to cook them, battle ships, dragons, new accessories and much more!
Mob Stacker Advanced
Mob stacker mod with breeding support, etc.
Dong Dong's random creation
magic and energy,new ore,new dimension,new tool and weapon type.
SitOnEverything
Sit on almost any block or entity with configurable seat positions, vanilla presets, and quick hotkey support.
Rine Time
Explore | Choose Your Class | Battle Challenging Mobs | Build | Decorate | Grow Crops | Automate Everything

CobbleMaster
The official Cobblemon: Mega Showdown modpack — competitive battles, tech automation, and endless exploration, all in one.
Better Left Click
Allows you to use left click bind like normal but not lose out on the competitive and survival advantage of using a keyboard key.
PySpigot
A Python scripting engine (plugin) for Minecraft servers running Bukkit or one of its forks (Spigot, Paper, etc.).