Minecraft Java 1.21 Mods
Browse 3,588 free mods for Minecraft Java 1.21 — popular picks include Rules4Worlds, Mxthy's ITALIAN BRAINROT, toucanLib.
Updated daily
Rules4Worlds
A library mod for fabric mod developers that enables you to easily create world-specific gamerules.
Mxthy's ITALIAN BRAINROT
a mod created with geckolib plugin that adds the italian brainrot character
toucanLib
Small shared multi-loader utility helpers for jvn's mods.
Open In Inventory
Open guidebooks, backpacks, handhelds and more with a single click in inventory
EasyUpgradeNetherite (EUN)
Add a crafting recipe to the netherite upgrade in Minecraft Java!
Nebula
Nebula is a Library for Spells and Mana. The Library is flexible and can be used for a lot of stuff.
BLib
A library that makes multi-loader mod development more streamlined.
BeebeeBlock Core
Coremod for the modpack BeebeeBlock: The Skyhive.
FastXP+
A simple client-side optimization mod that allows you to throw XP bottles instantly and fast by just holding down the right-click.
Music and Melody
Comprehensive music overhaul powered by Albums, Playlists and Events, alongside a fitting soundtrack expansion and various music tweaks
Reinforced Black Holes
Have you ever wanted to create black holes with their iconic light bending effects? Well guess what! Now you can!
Veil Origins
When the Veil falls though the true origins of the ones you thought where friends...
SQLib
The easiest way to store data for all your minecraft needs!
Shriek
A Minecraft speech to text library; detect what your players say!
Your Options Shall Be Neoforged (YOSBR)
Your options shall be respected—even on NeoForge.

Symbols 'n' Stuff
Symbol Font! Simple library that adds a symbolic font to the game, which can be used to display visual symbols anywhere text can be displayed
Prism Mod Menu
✦ Prism Mod Menu Super Cool Animations ⚡
FancyDialogs
Simple, easy to use and lightweight plugin to show dialogs. You can show a welcome-screen. Other plugins can use FancyDialogs to integrate fancy dialogs into their plugins.
Mining Dimension
Mining Dimension gives you a brand-new realm overflowing with resources. Every vanilla ore spawns at significantly higher rates, and - thanks to full Create integration - you’ll also uncover Zinc.
KapLib
Library for all purposes
Exposure: Space
Astrophotography expansion for Exposure. Discover 200 real celestial objects and build your own space catalog.
Tick Tok lib
this lib converts ticks into milliseconds, seconds, minutes, and hours so you can develop your mod easier. it also comes with 2 features displays the ingame time and your system time.
EconomyBridge
A lightweight library plugin to handle multiple various currency and custom item plugins.
Dark Matter [Library]
The invisible force that holds galaxies together
Better Fishing [Automatic]
An automatic fishing mod for Minecraft 1.21.8~ built on the Fabric framework.
GrosseSauceLib
A library for my mods
JsMacros Community Edition
JsMacros Community Edition (JsMacrosCE) is a community-maintained fork of JsMacros. Write and run client-side scripts in various languages.

Annoying API
General purpose API with tons of features
Dynamic Name Tags
Special names to mobs with name tag Easter eggs (jeb_, Dinnerbone etc.)
BlockProt
Bukkit plugin to protect your chests, furnaces and more with a modern GUI approach.
SeamlessLib
API for all my mods, makes it easier for other developers to implement and add onto my projects
Rib (Roanoke Library)
A collection of common code and tooling for Roanoke Development's mods
skript-particle
Skript addon for creating complex particle effects with minimal hassle.
Limitless Logistics
Ultimate solution for bottomless energy transfers.
FishonMC-Extras
A simple mod to display helpful QOL HUDs on screen. Fan made for the play.fishonmc.net server.
Saro´s Default Options
Default options for modpacks