Minecraft Java 1.21 Mods
Browse 775 free mods for Minecraft Java 1.21 — popular picks include P_Caixas, PulseCore, Entity Block.
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P_Caixas
Caixas customizadas Custom boxes
PulseCore
The best core plugin for your minecraft server.
Entity Block
Adds the Entity Block to make creating custom structures easier
Serpentine
Serpentine is a light weight config library mod based on providing fast configuration to any mod needing it
Wildborne - Worldgen & Data Tweaks
This is a specially designed Modded DATA pack to implement worldgen/tag/data tweaks for the upcoming Wildborne Modpack!
Skript - Folia
Skript is a Paper plugin which allows server admins to customize their server easily, but without the hassle of programming a plugin or asking/paying someone to program a plugin for them.

Chaotic Armor Trims
A mod for more armor trim capabilities
Materials Lib
Create materials easily
WardenLib
WardenLib is a lightweight developer library for Minecraft plugins that provides reusable utilities and APIs for server management and gameplay enhancements.
Snippet
The ultimate screenshot upgrade for Minecraft. Browse, edit, and share instantly - soon featuring toggleable layers.
MiniBoardX
A mini board for your MC servers like score board with a few contents and nice animation.
UCExchange
Daily rotating trade market plugin for Paper with GUI, Vault support, Discord logs, PlaceholderAPI, and automatic offer refresh.
Brushable Block
A Minecraft mod that extends the vanilla brushing mechanic to any block via tags.
Kiwi Customization
a tool for creating game content from Excel/Google Sheets/YAML.
Custom Boss Zoryth AI
Zoryth AI Boss is a premium, high-performance custom boss framework for Paper (1.21.x).
aozaink
Aozai Ink MC is a NeoForge foundation mod that turns handwritten Chinese glyphs into semantic world states for Minecraft addons.
vCounter
Plugin for Minecraft Practice servers.
DZTradeHub
A complete economy plugin for PaperMC 1.21.1 featuring banking, bounties, casinos, auctions, kits, and a full marketplace with multi-currency support and secure transactions.
Player Input
Handles polling based input detection, made possible by the type-specific input field on players, provides easy & useful DX for tracking and acting on changes in this data.

Epiphany
Library mod for progression based mods
BioGrav
Variable gravity across biomes, configurable to your heart's content!
VRX Economy
🌟 Robust economic framework providing a stable currency system and essential financial commands to power your server's entire marketplace and trade. 🌟

OGDuels
OGDuels is a lightweight, high-performance Duels, FFA, killstreak, bounty, and leaderboard module designed for competitive Minecraft PvP servers.
DrawerShelves
Drawers storage system 100%server side using shelf blocks
Red Crystal(红晶)
Add new recipes to facilitate players in making items.
Villager Sound Changer
This mod allows you to press F7 to open a menu where you can customize villager sounds to your preference. HOTKEYS: F7 opens the menu.
TutorialBook
In-game handbook for rules, guides, and tutorials—reduce support spam and onboard players fast.
Sculk Vault
Adds some sculky features to make the ancient cities more enticing
Art's CLA (NLAM)
A datapack that allows chickens to lay anything with some restrictions to reduce abuse and server lag. Based on helmo2019's Chickens Lay Anything.
PixelAI
PixelAI is a lightweight, high-performance AI integration that allows players to interact with state-of-the-art AI models directly in-game. Whether you need an assistant for all your server features or a witty global chatbot to entertain your community!
Zones API
Server-side mod implementing zones with api in the game.
Critfall
Tabletop style d20 combat for Minecraft uses D20 and modifiers against the target's Armor Class.
BossReng's UI Mod
Boss_Reng and various Lofi music creators bring you the best visuals and the most comfortable acoustic experience in Minecraft!
PNode
Paper plugin with intuitive visual node-based editor for server logic. No coding required.
Buckshot's RPG Combat Attributes
Welcome to a complete surgical rewrite of Minecraft's combat, physics, and magic mathematics.

Create: World of Colors
Putting some more color into your Factory Lines