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Minecraft Java 1.21 Mods

Browse 225 free mods for Minecraft Java 1.21 — popular picks include SOLEA API, Prism Perms, Advanced API.

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SOLEA API
1.21.1neoforge

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.

528downloads
Prism Perms
1.8

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.

515downloads
Advanced API
1.8

Advanced API

AdvancedAPI provides very simple code, for example, ItemBuilder or SimpleInventory, which can be used to create things faster. ONLY FOR PLUGIN DEVELOPERS

512downloads
Idle Generators
1.21.1neoforge

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.

486downloads
Sound Manager
1.21.11fabric

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

430downloads
Keyconomy
1.21

Keyconomy

An economy datapack based around trial keys. It has shops included!

429downloads
kAuth
1.8

kAuth

Auth System for Velocity servers

427downloads
Persistent Storage
1.18fabric

Persistent Storage

Store variables between worlds

427downloads
CustomGuiReworked
1.21

CustomGuiReworked

a simple plugin to create Custom GUI Inventory interfaces with saving data items system

424downloads
Traveler's Journal
1.21.1fabric

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.

419downloads
TFC Structure Compat
1.21.1neoforge

TFC Structure Compat

TerraFirmaCraft compatibility for structure mods.

411downloads
Polydex2REI-Forked
1.21.9fabric

Polydex2REI-Forked

Converts Polydex recipes to work with REI!

397downloads
Econix
1.21

Econix

Lightweight Economy Provider for Minecraft Server and Developer

392downloads
MHDF-Tools
1.17.1

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✨

389downloads
StatsSigns
1.21.11fabric

StatsSigns

StatsSigns expands StatsMod to sign displaying

386downloads
Espoir SMP
1.21

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

371downloads
ISS
1.21.5

ISS

This Datapack adds an easy way Save and Load player inventories.

365downloads
CrafterLib
1.21.5fabric

CrafterLib

CrafterLib - A robust Custom Crafter library for Minecraft

353downloads
QoL
1.21.5

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)

349downloads
Better Copper Golems
1.21.9fabric

Better Copper Golems

Unleash the true power of copper golems!

337downloads
CraftEditor
1.21

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.

309downloads
Baspig Utils Lib
1.21.5fabric

Baspig Utils Lib

Just a small library, to make mod develop easier

298downloads
TQs Unstack Shulkers in item form
1.21.5

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.

278downloads
VanishV
1.19

VanishV

VanishV - this is an improved version of the regular vanish, convenient and simple

271downloads
Delphi Entity Menus
1.21.7

Delphi Entity Menus

Make menus with XML, style with CSS and add functionality with either Java or JavaScript. All rendered with Display Entities

269downloads
SpawnStash
1.21

SpawnStash

This is the best and most customizable donut spawnstash plugin out in the wild

268downloads
PrismaticAPI
1.8

PrismaticAPI

Versatile library for advanced color manipulation and text formatting in Bukkit/Spigot/Paper plugins.

265downloads
ItemPro
1.21.10fabric

ItemPro

ItemPro - Because knowledge is power, even in Minecraft! ⚔️📚✨

260downloads
RemooLogin
1.21

RemooLogin

A lightweight Minecraft plugin for offline servers that requires players to register and log in before interacting.

259downloads
P_Terrenos
1.21

P_Terrenos

Terrenos Customizados Custom lands

252downloads
XMyIsland
1.17

XMyIsland

A comprehensive island management plugin that brings robust protection, intuitive GUI management, and economy integration to your Minecraft server.

244downloads
Register and Login Plugin
1.21

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

233downloads
CorruptionCraft
1.21

CorruptionCraft

A plugin that challenges players. Random events can occur. (no Spoilers!)

231downloads
Tiny DataLib
1.21.11

Tiny DataLib

This project is a library with useful utilities such as a database system and more.

230downloads
Command Framework
1.8

Command Framework

Dynamic command framework for Bukkit, Spigot, and Paper plugins.

208downloads
WingAuth
1.7.2

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.

207downloads