Minecraft Java 1.21 Mods
Browse 97 free mods for Minecraft Java 1.21 — popular picks include AggStack, DeathCode, Solariae Management CNIS Plugin.
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AggStack
AggStack allows you to store multiple items with the same ID but different NBT data (durability, enchantments, etc.) in a single inventory slot, with an expandable panel to view and manage all sub-items.
DeathCode
A death compensation system with Discord integration. Players receive unique codes when they die and can request their inventory back through Discord with video proof.
Solariae Management CNIS Plugin
Exclusive Solarian Community Plugin for MySQL Database Documentation Management.
TritonAC
An optimized, packet-based solution to block modern combat and movement exploits. Powered by Aquaqa.
wa3kit
You can save and load your inventory
Extender
Minecraft Command length Extender & Minecraft Custom Function Runner.
Snippet
The ultimate screenshot upgrade for Minecraft. Browse, edit, and share instantly - soon featuring toggleable layers.
BSLib
BSLib Library aims to eliminate boilerplate code, streamline development workflows, and introduce modern reactive programming paradigms to the Minecraft ecosystem.
MapProtect
MapProtect is built to work alongside automated map rotation systems, allowing FFA servers to maintain clean, reusable arenas without requiring manual resets.
1.21 GameRules Restore
1.21 GameRules Restore brings back the original behavior of selected gamerules from version 1.21 that were changed in Minecraft 1.21.11. This allows servers to keep the old mechanics without downgrading the game version.
Chest Door Lock
Lock is a lightweight and multiplayer-friendly Minecraft datapack that allows you to easily secure your items and structures.
FurnaceEditor
A collection of powerful in-game editors to manage crafting and smelting recipes effortlessly. Create, edit, and delete recipes via intuitive UIs without ever touching a config file.
Helios Core
HeliosCore is the foundation plugin powering the entire Helios ecosystem, providing shared services for storage, permissions, messaging, licensing, player profiles, and the live web dashboard used across all Helios plugins.
OpenRouter Chatbot
OpenRouter Chatbot is a powerful and highly configurable Spigot plugin that integrates the OpenRouter AI API into your Minecraft server.
AuctionX
A modern, fully customizable auction house plugin with per-rank limits, MySQL/SQLite storage, PlaceholderAPI & Discord integration, and a fully editable English messages.yml.
Config Hub
USH-Universal Config Hub is a web dashboard for editing all Paper plugin configs. It validates changes, shows reload requirements (hot, plugin reload, or server restart), and safely migrates old versions with backups.
NextLib
Build Minecraft Plugins The Easy Way
PerInfo
PerInfo is a robust utility plugin developed for Minecraft 1.21.1. It was designed to provide total transparency regarding commands and permissions, while transforming the chat experience through dynamic, real-time sharing of items and player status.
Kaze's Kit Setup
A datapack that adds the ability to create and load kits withoout using mods.
KNLibs
KNLibs is a lightweight, high-performance core library required for all KN Projects plugins.
UltraTrackStats
UltraTrackStats is a Bukkit/Spigot plugin that provides a centralized player statistics tracking system (kills, blocks, and more) accessible by any plugin via a simple public API.
Kit Manager
A Datapack that lets you save your inventory into a kit to then load it later down the line!
VapourWare Mod (1.21.1, 1.20.1) – Library for VapourDrive's Mods
VapourWare Mod is a base mod created by VapourDrive. It serves as the foundation for several other mods and includes shared code for fuel-powered machines and a wrench. Features: Provides the logic and framework for fuel consumption, storage, and use in various machines. Adds a wrench that can be used to rotate blocks and disassemble […]
XD's Utils
XD's Utils is a utility plugin that provides backups, a web interface, and more!
CatItems
CatItems is a plugin for creating custom items right in the game. With it, you can add attributes, enchantments, hide prompts, give permanent effects, create abilities on Shift, and build .schem schematics on right-click...