Minecraft Java 1.21 Mods
Browse 3,943 free mods for Minecraft Java 1.21 — popular picks include Quiet Unboxing, Resin Bundle Pins, MyHomesX.
Updated daily
Quiet Unboxing
This mod enables silent chest opening while sneaking and holding right-click
Resin Bundle Pins
Backports resin pins for bundles to 1.21.1, compatible with Vanilla Backport
MyHomesX
MyHomesX is an advanced and highly configurable homes plugin for Spigot / Paper servers, designed to provide a smooth, secure, and professional experience for players, staff, and Minecraft networks.
Pile of Flint
Adds a craftable block of flint
Logs to Chests
Craft logs directly into chests, skipping the plank step. Works with Vanilla and modded logs tagged as ‘log’ for faster storage crafting.
BetterBackup
This plugin is a backup plugin that does everything for you (if you want).
OP OAK PREASURE PLATE
Super interesting datapack, designed for skyblock or oneblock better start or if you just want to get geard up fast in your own server before your friends. (Sneeky cheat code🫠)
SimpleArt
Draw custom pixel art on canvases in-game. Features a smooth UI, undo system, and metadata storage for your masterpieces.
Second Hotbar
This mod allows you to quickly switch between two hotbars or slots.
ProEssentials
ProEssentials is a comprehensive essentials plugin for Minecraft 1.21.x that bundles key server features
Chest to Vault
Server-side loot for everyone!
Deathifny
A Minecraft plugin for tracking deaths with GUI
Subnautica Internal Modules
Subnautica... In minecraft.... In minecraft!!!!
LoxyCraft
A lightweight utility mod adding compressed blocks, custom utility components, and small vanilla quality-of-life recipes.
ChestKey
ChestKey is a Paper (1.21.11+) Minecraft plugin that lets you lock and protect chests using unique keys. It uses only the official Adventure API (no NMS or reflection).
x10k Management Core
simple plugin that adds more feature to enchance your minecraft server!
FlezerBoxes
A high-performance crates plugin featuring ultra-fast 2-turn animations, HEX-colored rarities, unique Rune mechanics, and interactive global broadcasts.
Create: Just Filter Stamps
Save you some time and redstone link headaches with caching of filters and items for Create's filters. JEI/EMI Compatibility

The Pandoras Box
Pandoras Box adds a mysterious block that periodically generates random items from every installed mod. + New dimension
Materia-Reborn
A progression-focused Minecraft transmutation mod inspired by ProjectE, featuring Essence, upgradeable tables, rituals, storage, and smelting systems.
Quick Inv Sorter
A lightweight inventory management mod.
Atoms in Java
This project brings chemical elements from Minecraft bedrock (still beta)

icon modifier
This mod modifies the icon of the instance
invitemframe
invisible Itemframe with sneak right click
Folia Shop
A modern, high-performance shop plugin built for Folia, and modern Minecraft servers. FoliaShop combines a powerful GUI shop, Worthify-style selling system, Auction House, Custom Items Support, advanced item matching, in-game edito
EzCrafting
Custom crafting recipes for your server!
Nomadic Realms
Nomadic Realms offers a primitive survival experience. Logs are tough, so use flint; but wood tools are extra weak. Chests, furnaces, and loot must be found with exploration. Death randomizes respawn, but the new Ender Chest is now vital for all valuables.
Simple Totem Limiter
Just makes totems drop on the ground when you have more than the set amount.
LinkedInvetory
Link your Inventory and the Inventory of your friend
InfernoAuthBungee
InfernoAuthBungee - Advanced Authentication System
Pethelpers
The plugin adds a dog pet that can be summoned, leashed, and sent to find items. All pet data is saved between server restarts.
ReQ: Shulkers In Shulkers
Put Shulkers in Shulkers
SuperDuperWhitelist
More than just a whitelist plugin
AutoStopper
Empty servers sleep. Players wake them. AutoStopper starts mapped Docker backends on demand and stops them after inactivity.

Meridian - Enchanting Overhaul
Enchanting you build toward, not a slot machine. Five-stat shelves shape every roll, with treasure shelves, salvage tomes, and enchantment libraries for storage. 146 enchantments, deeply configurable, standalone.
Rattlebox
Look at a chest, barrel, shulker, or ender inventory to preview what’s inside, then search your indexed stash and drop a waypoint on the hit. Live in singleplayer, live on multiplayer when the server runs Rattlebox, or from cache when it doesn’t.