Minecraft Java 1.21 Mods
Browse 3,590 free mods for Minecraft Java 1.21 — popular picks include Timekeeper, Wisp & Willow, Hopplet (Hopper Filters).
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Timekeeper
Super simple vanilla tick profiler for Minecraft datapacks & servers
Wisp & Willow
A magic mod, inspired by occultism, botania, and thaumcraft.

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.
TheGlow
Glow cosmetics for donors
Ai Friend(Companion)
Adds an intelligent AI companion to your world that interacts with you while you play. The AI can chat, respond to events, and keep you company during your adventures, making singleplayer gameplay more engaging and immersive.
Silver's Effects Library | EL
Just a small library of some custom effects used by my packs.
zHead
+100k heads ! Free and Open source
Reduced Invincibility Frames
RIF stands for 'Reduced Invincibility Frames.' The purpose of this mod is to reduce iFrame duration or disable it.

Gimme That Gimmick
Adds server-side generational gimmicks to Cobblemon.
Quill Notifications
A small Library mod to handle sending notifications to players both online and offline with style!
PySpigot
A Python scripting engine (plugin) for Minecraft servers running Bukkit or one of its forks (Spigot, Paper, etc.).
MobMoney
This plugin makes killing various mobs valuable for which you will receive money
One punch Man (Anime)
Experience the power of One Punch Man in Minecraft! This Fabric mod adds insane strength, abilities, and anime-inspired gameplay. Fabric API required.
CobbleQuestBridge
Bridge Cobblemon captures to stats and scoreboards for FTB Quests
Use Server Name
Use the server name instead of the ip to save server related data
RRDiscordBridge
A Modern, Clean-looking, and Universal Discord bridge/relay designed to support both modern AND legacy versions of Minecraft. """Temporary""" logo made by my friend for the funny.
OpenPortals
A simple-to-use library for implementing custom dimension portals.
Rtag
The "readable tag" Bukkit library, an easy way to handle block, entity, item NBT and data components
Iron's Spells HUD
Client-side addon for Iron's Spells & Spellbooks, allowing to get mana values using NBT for HUD mods
JMXL
Library bringing some extensions to the model format
JDA Library
JDA Mod so mods can easily get access to using JDA without needing to do shenanigans such as JarInJar
Barched Extra Spears
An addon mod that extends Barched's Spear items to even more mods!

Past-el Palettes
Bringing back classic colors as dyes
NoUpgradeNetherite
Remove of Necessity or Upgrade In Netherite Craftings in Minecraft Java!
no fun allowed
data and component driven adventure mode location protection for showcase servers
Hexable: A Hexerei Sable compability mod
This mod adds support between Hexerei and Sable

MECHA - Multiple Entity Collision Hitboxes API
Fabric API for implementing multiple collider hitboxes for a single entity
MapEngine Media Extension
FFmpeg Media Extension library for MapEngine
HapticCraft
HapticCraft makes that you can fill haptic feedbacks with bHaptics TactSuit devices in Minecraft
TLA Api
An abstraction layer over recipe viewer apis for minecraft.
Clutch
In some cases a clutch will be impossible. This mod shows whether a clutch is doable and how difficult it will be, alongside many other clutching utilities.

ActionLib
Lib that Register HoverEvent.Action
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
KubeJS CSV
Add CSV parse/read/write support for KubeJS
Transport-Lib
A simple library allowing modders to create custom pipe networks