Minecraft Java 1.21 Mods
Browse 3,588 free mods for Minecraft Java 1.21 — popular picks include Create Bugfix: Clipboard Patch, Apollo, Rosetta.
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Create Bugfix: Clipboard Patch
This mod fixes a bug in the Create mod’s clipboard. It removes illegal data components, ensuring stability by preserving only whitelisted components.
Apollo
Lunar Client's next generation server-sided API
Rosetta
A library mod for onboarding players to your mod.
TarkovCraft: Core
Library with core functionalities for TarkovCraft project
K3d Visuals (PvP Visual)
K3D Visuals is a suite of advanced visual features for Minecraft designed to enhance your gameplay and PvP experience.
Bundle Weight, There's More!
Adds an item component for controlling the weight of an item in a bundle (how much space it takes up)
FacilisCommon
Library for Minecraft
VortyLib
Minecraft library with shared features for my mods
Alternative Pause Menu
Adapts the pause menu to contain quick Visual, Performance, and Volume Settings for quicker access!
Monument Data Fix
API support for custom data fixers!
World Loading Tweaker
Allows you to change the spawn chunk radius of Minecraft, either speeding up loading or improving spawn quality
CCSecureBoot
Implements boot security in CC: Tweaked.
eco
Powerful spigot development library that supercharges your plugins
Luish's Guns Crafting Add-on
Add-on for Luish's Guns that adds crafting recipes
Virtual Library
Virtual Library is a collection and api for building mods. it comes with mixins, a shader plugin, a keybind library, a config loader, a command library, an in memory plugin loader and a rendering library.
Eymistaken's HUD
A highly customizable PvP HUD featuring a Drag & Drop Layout Designer, CPS, Keystrokes, Reach, Armor HUD and Combo display.
Attribute Sculptor
This mod allows you to easily adjust the three-dimensional stats (health, attack, and defense) of players and creatures.
Colorful Lighting
Adds colored lighting to the game.
TacZ Mesh Loader [TML]
This mod allows you to load mesh geo models created with the Meshy plugin into TacZ.
Hasoook
This is my self-titled mod, developed during my learning process. I plan to incorporate fun ideas and feedback from viewers into the mod and will update related videos on Bilibili to showcase detailed features and more gameplay!

EnchantedBookLib
A Fabric and NeoForge library mod which tries to make multiplatform just a bit easier (and mostly for my mods).
CC - Complementary Core
A powerful library that its core for all my mods.
ProgressiveStages
Fully customizable progressive stages for Minecraft with FTB Quests/KubeJS/JEI integration.
PixelGO - Information - Jade (for Pixelmon)
A mod that lets you view pokemon statistics (IV, EV, Nature, EVYield ...)
JsonPatcher
A tool for patching minecrafts json files, without overrding them, using a custom DSL
T88
A lib-mod by USS_Shenzhou
Brutal Nightmare Config Integration
Add global config menu for Brutal Nightmare
ConTex
Yet another connected textures mod
KAllFix
Optimization and multithreading written by n1luik
Contraption Lights (Bi-directional Coloured Dynamic Lights)
Adds coloured dynamic lights that move with your Create contraptions and Sable sub-levels, flowing both ways between your builds and the world.
AetherMon
A datapack that lets Cobblemons spawn in aether and have tms from TmCraft spawn naturally in aether dungeons.
LimLib
library to simplify aspects of modding (like configurations, registration, commands, etc...)
FScript Lib
Library for adding scripting to a mod
NexusFrame
A server-side library mod adding Multiblock api with a custom preview!
BattleArena
A rich Minecraft match and event framework for creating minigames and arenas, supporting config-based and fully custom game modes with plugins.

Simple Animator
This is an animator lib for player