Minecraft Java 1.21 Mods
Browse 139 free mods for Minecraft Java 1.21 — popular picks include LagFixer, Curtain, Lightning Grim Anticheat.
Updated daily
LagFixer
⚡️ Best Performance Solution! 🗄️Trusted by 3000+ servers! ✅ Lightweight and highly Asynchronous!
Curtain
A Forge mod like fabric-carpet
Lightning Grim Anticheat
Anticheat Perfected | 3.0005 reach | 99.999% antikb. Fork of GrimAC that's faster, with better reach checks, interact checks, and numerous bug fixes.
Texture Pack Folders (Like Recursive Resources)
Mod allows folders with packs in them to work, mainly for organization. (Like recursive resources)
Item Components
Change the default components for items! Server-side and data-driven, refreshes on /reload! (and does it properly)
datapack function library
This data pack provides developers with some useful functions and is compatible with all versions of Minecraft (except for those versions where data packs cannot be installed).
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
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.
World Loading Tweaker
Allows you to change the spawn chunk radius of Minecraft, either speeding up loading or improving spawn quality
FastXP+
A simple client-side optimization mod that allows you to throw XP bottles instantly and fast by just holding down the right-click.
CommandBridge
Connect all your servers together and bridge commands across your entire Minecraft network.
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
LeafRTP | Random Teleport
Fast Random Teleportation for everyone, configurable and extensible
CobbleTypes Master
The Ultimate Pokemon Type Utilities in minecraft and cobblemon! Type Chart, Team analysis, Scanning and much more!
Lite2Edit
Lite2Edit is a small Fabric mod that lets WorldEdit open Litematica schematic files (.litematic).
EnhancedVelocity
Customize your Velocity network 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.

Protect
A WorldGuard-like, modern world protection plugin made for API usage
EternalCore
EternalCore is a modern, actively maintained alternative to EssentialsX. It provides the most important server features in one plugin, with better configuration, performance, and support for the latest Minecraft versions.
anti chest esp donut smp
DonutAntiChestESP Advanced Chest Visibility Protection for Minecraft Servers
Inv Tweaker
Inventory sorting and grouping mod, also has auto fill for the hotbar

PerWorlds
A plugin that allows you to store player data per world
Villager Job Tools
Client-only. Reroll any villager's trades (break/place their job site block) until wanted offers appear. Trades Finder, Auto Buy, Auto Sell. Keybinds: K = menu, R = start/stop.
SkHttp
skript addon for http
Redstone Additions
Best redstone&tech datapack, Super optimized, 55+ blocks (Block breaker, block placer, filters, conveyors, item pipes, breeder, generators, gates, chunk loader, wireless redstone, multiblocks, jetpacks and so much more ! )
ZonePractice Pro Duels
Elevate your server with the ultimate high performance Minecraft Modern PvP practice core plugin for playing duels.

Hopplet (Hopper Filters)
Expressive hopper filtering, written as plain text. The most powerful plugin in this domain. Filter by any item property. Extendable via a strong developer API.
PySpigot
A Python scripting engine (plugin) for Minecraft servers running Bukkit or one of its forks (Spigot, Paper, etc.).
Replant+
A lightweight and server-friendly mod that automatically replants crops the moment you harvest them.
Customizable Dragon AI
Useful Datapack to customize the Ender Dragon's AI
OpenJavascript
Create custom menus, commands, plugins, systems, basically anything with scripts in Javascript! With multithreading and Folia support! Everything is fully documented in the documentation!
ManualTotem
A simple mod that helps with manual totem placement by automatically moving your cursor to a totem when you open your inventory.
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.
JSCore
Extend your game with JavaScript, create and publish commands, menus, toggles and much more!