Minecraft Java 1.21 Mods
Browse 225 free mods for Minecraft Java 1.21 — popular picks include SOLEA API, Prism Perms, Advanced API.
Updated daily
SOLEA API
SoleaAPI is a utility mod that combines homes, warps, TPA, teams, moderation, and combat-log tools into one configurable package with dynamic prefix support and EN/FR localization.
Prism Perms
Cross‑platform permissions plugin for Bukkit, BungeeCord, and Velocity. Lightweight YAML storage, simple commands, and rich stats tools (groups/users, ungrouped/missing/list, names cache) with pagination and safe output chunking.
Advanced API
AdvancedAPI provides very simple code, for example, ItemBuilder or SimpleInventory, which can be used to create things faster. ONLY FOR PLUGIN DEVELOPERS
Idle Generators
Place a generator and let it work, even offline. Craftable block-generators that produce resources passively over real time, with a live HUD and full Cloth Config support.
Sound Manager
This is the mod for usually used for muting or changing the voice of the mobs,blocks or generall things like death, fall damage , hit etc. You can edit them customly see images for more info
Keyconomy
An economy datapack based around trial keys. It has shops included!
kAuth
Auth System for Velocity servers
Persistent Storage
Store variables between worlds
CustomGuiReworked
a simple plugin to create Custom GUI Inventory interfaces with saving data items system

Traveler's Journal
Part of the Traveler's Series; provide a player with a book upon joining, with its content dynamically managed and continuously updated by the admin from a markdown file.
TFC Structure Compat
TerraFirmaCraft compatibility for structure mods.
Polydex2REI-Forked
Converts Polydex recipes to work with REI!
Econix
Lightweight Economy Provider for Minecraft Server and Developer
MHDF-Tools
MHDF-Tools | Dream Tools | ✨ A lightweight portable high performance Bukkit base plugin ✨MHDF-Tools | 梦之工具 | ✨一款轻量化便携高性能的Bukkit基础插件✨
StatsSigns
StatsSigns expands StatsMod to sign displaying
Espoir SMP
The plugin's twist is ⚙️ How the system works: 🧿 You start with 3 souls. 🔻 Each time you die, you lose a soul. 💀 At 0 souls, you become a ghost: spectator mode for 24 hours. ⚔️ Kill a player → you steal one of their souls, if you don't already have all
ISS
This Datapack adds an easy way Save and Load player inventories.
CrafterLib
CrafterLib - A robust Custom Crafter library for Minecraft
QoL
(1.21.5+), Adds Quality of Life features that everyone needs in their Survival worlds/servers (will also include some of my other datapacks/mods in here)
Better Copper Golems
Unleash the true power of copper golems!
CraftEditor
CraftEditor allows server owners to create, edit, and manage Minecraft crafting recipes directly in-game through a simple and intuitive graphical interface, without configuration files or server restarts.
Baspig Utils Lib
Just a small library, to make mod develop easier
TQs Unstack Shulkers in item form
Unstacks stacked shulker boxes that are in item form. Handy with mods that can stack shulker boxes in your inventory and on the ground, like tweakeroo and carpet mod.
VanishV
VanishV - this is an improved version of the regular vanish, convenient and simple
Delphi Entity Menus
Make menus with XML, style with CSS and add functionality with either Java or JavaScript. All rendered with Display Entities
SpawnStash
This is the best and most customizable donut spawnstash plugin out in the wild
PrismaticAPI
Versatile library for advanced color manipulation and text formatting in Bukkit/Spigot/Paper plugins.
ItemPro
ItemPro - Because knowledge is power, even in Minecraft! ⚔️📚✨
RemooLogin
A lightweight Minecraft plugin for offline servers that requires players to register and log in before interacting.
P_Terrenos
Terrenos Customizados Custom lands
XMyIsland
A comprehensive island management plugin that brings robust protection, intuitive GUI management, and economy integration to your Minecraft server.
Register and Login Plugin
This plugin enables server-side registration and login to prevent account theft. 这个插件让服务器进行注册和登录,避免被盗号
CorruptionCraft
A plugin that challenges players. Random events can occur. (no Spoilers!)
Tiny DataLib
This project is a library with useful utilities such as a database system and more.
Command Framework
Dynamic command framework for Bukkit, Spigot, and Paper plugins.
WingAuth
A more advanced and updated fork of LimboAuth - Velocity auth plugin for offline/hybrid servers with secure Limbo-based login, sessions, and anti-bruteforce protection.