Minecraft Java 1.21 Mods
Browse 3,590 free mods for Minecraft Java 1.21 — popular picks include Projection Boundary, Jake's Economy, Craftable Elytra & Shulker [EASY].
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Projection Boundary
Why use a boring invisible wall when you can turn the world border into a glitching, collapsing simulation?
Jake's Economy
A dynamic player-driven economy mod with a live market, coin currency, real-time price trends, and an Auction House.
Craftable Elytra & Shulker [EASY]
Crafting recipe for Elytra and Shulker shell added.
Sellmenu
Plugin for creating stores for your server Easy to use plugin supports itemadder itemedit itemtag plugins Must have vault
Server Folders
A tiny client side mod, that allows you to organize your server list. :)
Mouse Wheelie Companion
A companion datapack for Mouse Wheelie that enables certain Mouse Wheelie features on Vanilla servers.
One Hit Punch
This mod adds a fist ( weapon ), with whom you can kill anyone! Even the Warden!
SkinsLib
This project adds an in‑game skin library: browse/search skins, preview them, import by username or PNG (drag/drop supported), and apply a selected skin directly to your player.
NitroRewards
Daily Rewards - Weekly Rewards - Ingame Editor - ItemsAdder & Oraxen - Basehead - 1.21.x Ready
MultiblockEngine
An advanced multi-block structure system
RzmLib
认真猫系列模组的核心前置库,为其他 Rzm 模组提供支持 / The core dependency for the Rzm (SeriousCat) mod series, providing support for other Rzm mods.
PartiumAPI
An api for easily adding items made out of different parts. For your mods and datapacks.
Function Permission Level
A simple mod that changes the function-permission-level to 4 in integrated servers (single player and LAN).
Name Lib
A simple library datapack for getting player usernames
LMenus
Build, customize, and manage interactive GUI menus entirely in-game.
CombatDistanceHUD
A lightweight, fully customizable Fabric client-side HUD mod that displays real-time combat distance information directly on your screen.
Exotico
The ultimate Hypixel SkyBlock exotic armor scanner and highlighter for Minecraft 1.21.11.
Lapata Purge
A Minecraft Spigot plugin that starts a timed ritual when a player head is placed on bedrock, showing a floating hologram countdown with particles. When the timer ends, it creates a big explosion with totem effects and removes the head automatically.
NitroSkulls
Count the days, collect the skulls!⚡
ModShield
Verify that client mods are allowed on the server
Creative Tab Layouts
A lightweight API for creating page-based Creative Tabs with sections, headers, banner pages, and animated visuals.
Silver's Project Info | PI
Ever wanted the contents and selected version of all of my projects?
MaidTelepathic & Ragdoll
A mod that integrates TelepathicMaid with the Maid Ragdoll Library.
Flammable Tweaker
Edit which blocks can be made flammable or not.
Pterodactyl Smart Provider
Use the Pterodactyl Panel API to dynamically scale your minecraft network! Requires Rusty Connector & Smart

FernAPI
A JSON Based Permission API (WIP)
Void Crates
Adds 6 animated rarity crate blocks for Fabric 1.21.1, with GeckoLib opening animations and configurable reward commands.
vJourney
A powerful custom advancement engine designed to guide players, track completed missions, and create immersive quest-trees.
FakeBan
A lightweight mod that allows you to simulate being banned from a server. Simply press a key (default is J) to trigger the ban message and return to the main menu. To use the mod you need to have installed Fabric API.
SecondDawnRP
SecondDawnRP is a sci-fi roleplay framework mod for Minecraft that adds advanced building systems, functional ship components, and interactive tools to support immersive crew-based starship gameplay and custom events.
P_Caixas
Caixas customizadas Custom boxes
PulseCore
The best core plugin for your minecraft server.
Qrazy Lib
A library for most or all Qrazy data packs
LobbyLink
The modern voting and server listing project!
SmartLootFilter
Take control of your inventory in Minecraft 1.21.11! Smart Loot Filter lets you choose exactly which items to pick up using a simple menu with categories like Weapons, Armor, Tools, Food, and more. Perfect for servers and singleplayer. Requires Fabric API.
how low can you go
Rewards you for going deeper in the world with increase spawn rate of ore except diamonds