Minecraft Java 1.21 Mods
Browse 3,590 free mods for Minecraft Java 1.21 — popular picks include SimpleRPGCore, Feywild: Library, BukkitOfUtils.
Updated daily

SimpleRPGCore
a simple RPG core mod for kubejs modpack or mods
Feywild: Library
The Loremaster in his Library will give guide books you can borrow.
BukkitOfUtils
Easily develop plugins that support the majority of server software! Supports Folia too!
Scabbard
A cross-loader compatibility library for various projects.
Unbound Third Person
360 Free-Look Camera Mod for Fabric, Forge, and NeoForge
Economy for Fabric
The Economy API for Fabric
CC:DirectGPU
High quality resolution for cc "monitors" "Fabric Version has been DISCONTINUED due to difficulty in maintaining both version's, Please use Forge or Neoforge version."
fweigel-util-lib
Shared client-side utility library for my Fabric mods. Provides common rendering, storage, UI, and sound utilities.
FE Core
Core dependency for FirEmerald's mods

Velvet
A Fabric & NeoForge library to help with shader usage, based off of Satin
Hollow Engine
Powerful content creation framework for modpacks maps and servers. Features Kotlin & Katari scripting, in-game scripting IDE, advanced NPCs, dialogues, animations, and cutscenes all in one.
reden-mev
Reden-mev Mod connects Minecraft players to the Minecraft Engineers Vault (Minemev) directly in-game.
GroovyDuvet
Language adapter and wrapper libraries for Groovy mods on Fabric and Quilt
Classic Reimagined for Sodium and Mods
Resource pack for Sodium Compatibility
NPCs engine
Interactive NPC system with dialogues for Minecraft 1.21.9+
Deltapack
A deltarune datapack adding content from dark fountains and dark worlds to the roaring knight. As well as items and spells like snowgrave and the shadow mantle.

morpher
A mod that changes the player's rendering to whatever you want using geckolib
AoA Core
Progression, team, and authority layer for the AoA modpack. NarrativeEvent bus, stage-guard recipe/loot conditions, and more in-depth pack layering not possible by kubejs or other scripting mods. All future mods made by me will use this as a library mod
NeoGeckoJS
Use GeckoLib to create animatable block/item/armor by KubeJS now on NeoForge!
MCTier Library
A library mod needed for the mixins that change minecolonies food tier food.
Copper Networks
A Power system for use by my (and other's) mods that uses copper blocks as wires.
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.
MKWidgets
An alternate GUI widget library for Minecraft
Mixin Helper
Utility mod for modpack developers that provides complete control over mixin behavior
Retina
Minecraft raycasting library that can detect precisely what block a player is looking at, including special block shapes like slabs & stairs.
M*dder Name Lib
Yeah, another one of these. Shared code for quat's Season 2 mods.
Café Core
Core library mod by Café Leblanć. Provides shared systems and utilities used by other mods from the same studio. Not standalone — required only as a dependency.

Nixienaut
A common code Library.
Azurium : Tools - Armor
Add New Simple Material [ Azurium Tools And Armors ] [ Not OP Mod ] [ Hardcore ]

Protect
A WorldGuard-like, modern world protection plugin made for API usage
FirmaNutrition
An addon that changes TFC player nutrition to behave in a more continuous manner
TidyInv
Smart, fast, server-friendly inventory sorting with 7 modes, vertical sort, locked slots, profiles, chest presets, deposit/restock/dump/take buttons, in-game config GUI, and a public API. Works in your inventory and in any chest, barrel or shulker.
Fabric ORM Jimmer
Fabric ORM module for Jimmer.
Boomerang
Mod that adds an 100% Working Boomerang (GeckoLib)
MWeb - File Sharing
Create links to your server files to share them! Links can be global, ip/user limited, timed and more. Easily zip folders and even send them to players as texturepacks! Custom Web Server responses - Part of MUtils
Sable AABB Fix
Fixes crashes and console spam from abnormal AABB coordinates when riding vehicles