Minecraft Java 1.21 Mods
Browse 3,590 free mods for Minecraft Java 1.21 — popular picks include SkidMC, QtCraft API, hShop.
Updated daily
SkidMC
A client-side Fabric API for developing mods and HUDs for KartRider: Minecraft.
QtCraft API
QtCraft Widget API -- A UI framework for Minecraft based on Qt.

hShop
A very customisable and weirdly easy to use Shop plugin.
Web Requests
Allows you to make get and post requests with commands
SimplePunishments
Simple punishment plugin for medium sized servers!
CrossTPA
CrossTPA is a high-performance, cross-platform teleportation suite that seamlessly bridges the gap between Java and Bedrock players with interactive GUIs and robust economy integration.
CMIRecipes
Allows players to view all custom recipes from CMI in a convenient GUI.
AwesomeToDos
Create good looking and structured ToDo-Lists and various categories.
Quack
Datapack library for quaternion math
FPSWizard
A simple setup wizard that guides players through Minecraft settings that can improve FPS and performance.
Playerreportplugin
This plugin is help to report any player on any server
BasedUtils
A advanced toolset of easy-to-use implementations for every plugin developer
CarLib
A modular Minecraft library built for vehicles, gameplay systems, and scalable custom development.
PlayerMapX
You can see your own server maps and players and their inventory, Rebranded from SNKAWatchMap

N_lib
This project adds library functions to Minecraft to easily create advanced datapacks like mods. We now have discord server: https://discord.gg/xTNrJafs89 <- unlimited link. Datapack is modular u can delete something and it will not stop working
SkVoid
SkVoid is a lightweight Skript addon focused on advanced session management. It allows developers to easily track, manage, and reward player activity through real-time session data and custom playtime statistics.
FMOD API
Professional-grade 3D spatial audio API for Minecraft mods
FXItems
WARNING: Coding Involved | Framework for adding custom Items, Events, Commands and Foods
Peaceful Enhancers
Basic essentials you can't earn in peaceful, are now obtainable.
PokéGems Legacy - Burst Evolution
PokéGems Legacy - Burst Evolution is an PokéGems Legacy Add-on for Cobblemon which adds Burst Evolution into the wonderful world of Cobblemon.
UltProfile
Track players, manage moderation actions, inspect inventories, view session history, and control everything through fully customizable GUIs.
NekoNameTags
NekoNameTags is a cross-platform mod that adds customizable, animated name tags and status displays across games and social platforms like Resonite, ChilloutVR, and Minecraft.
Tenreg
A registration tool for modern Minecraft
Soul Fragments
PVP based plugin for smps based on buffing armor with different abilities using soulfragments dropped when killing players
[1.20.5-1.21.x] BetterSettings ⚙️ | API-First Player Settings GUI | Folia, Async, High Performance
The unified, high-performance settings framework. Replaces fragmented commands with one API-drive
InjectLib
A library that adds custom methods to commonly used Paper/Bukkit classes, such as Player.
Silver's Ray Cast Library | RCL
Yet another Ray Cast library! with even more functions?
InstaKeystrokes
A clean and customizable keystrokes HUD mod for Fabric 1.21.4 with draggable UI, color customization, and a modern design.
Lumaris
A powerful Fabric rendering library offering clean 2D, 3D, and custom font rendering utilities. Designed to give developers a consistent, expressive visual API without the boilerplate.
Armstrong
Plugin that utilizes Lunar Client's Apollo API.
Early Tags
Inspect tags and other data WAY before it should be available.
music_lib
Allows you to control Minecraft's music.
Modmc
A highly optimized, zero-dependency, and incredibly accurate anti-cheat built natively on PacketEvents. Catch modern hackers instantly across versions 1.8 to 1.21.3 without punishing legitimate players.
mannequin controlls
mannequin controlls allows you to move/pose mannequin easily and can be used as a mini library for a variety fo projects.
layout
A simple and powerful library for creating customizable inventories on the Bukkit API.
GlobalMarketplac
Cross-server Auction House for Paper with anti-dupe, Vault economy, Discord support and built in Geyser Support.