Minecraft Java 1.21 Mods
Browse 230 free mods for Minecraft Java 1.21 — popular picks include V's Lucky Block Engine, Exotico, CasterOS.
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V's Lucky Block Engine
A Command driven Lucky block engine for 1.21.10
Exotico
The ultimate Hypixel SkyBlock exotic armor scanner and highlighter for Minecraft 1.21.11.
CasterOS
CasterOS is a cross-platform Minecraft magic plugin for Paper and Sponge servers. It features immersive spell casting, dynamic magic mode, and easy spell management with YAML files—making it simple to customize and expand your server’s magical experience.
One Hit Punch
This mod adds a fist ( weapon ), with whom you can kill anyone! Even the Warden!
PartiumAPI
An api for easily adding items made out of different parts. For your mods and datapacks.
FlexiBook
simplely create a custom book with a web editor. supported inject image, auto layout, custom background, register book by resourcespack, i18n, inject click link
P_Caixas
Caixas customizadas Custom boxes
ADKM
Defeat a powerful, giant boss roaming your world to claim his legendary Scythe with +16 Attack Damage! A high-risk, high-reward challenge. (Requires GeckoLib)
Chaotic Armor Trims
A mod for more armor trim capabilities
Item Damage Lib│物品損傷庫
A new function has been added that can consume the durability of items.│新增了一個函數，用於消耗物品耐久度。
Bedwars1058 Formatting addon
BwFormattingAddon is a lightweight Paper 1.21.1 addon that brings MiniMessage and hex color support to BedWars1058.
aozaink
Aozai Ink MC is a NeoForge foundation mod that turns handwritten Chinese glyphs into semantic world states for Minecraft addons.
DrawerShelves
Drawers storage system 100%server side using shelf blocks
Ritual Magic Resource pack
A Ritual Magic data pack dependency(not anymore)
Buckshot's RPG Combat Attributes
Welcome to a complete surgical rewrite of Minecraft's combat, physics, and magic mathematics.
InstaKeystrokes
A clean and customizable keystrokes HUD mod for Fabric 1.21.4 with draggable UI, color customization, and a modern design.
Aura Effects
A lot of cool aura particle effects to make you look cool!
Loremaster
The Loremaster in his Library will give guide books you can borrow.
FPSWizard
A simple setup wizard that guides players through Minecraft settings that can improve FPS and performance.
TheFourLeafCollective
A modpack made to specialize in four main archetypes, tech, magic, exploration, and building!
HueFinder
HueFinder adds a clean in-game menu to browse and search color palettes for creative building.
3D Model Datapack Template
This is an template used to add 3D models to your game via heledron's text display model generator (by SyanicXD)
RC Smart
Dynamically create & delete server, with ANY provider, and the magic of RustyConnector
Decraftable
lets you decraft items for your resources back.
TNTFireworks
TNTFireworks is a plugin that transforms TNT explosions into harmless fireworks.
Cinematic Library
Simple library to play cinematics, using Animated Java.
ManaMod Nixsas
Requires Minecraft 1.21.1, Fabric API 1.21.1 and Fabric Installer of version. Mana System added, Ice/Lava Mana Upgrade, Swords, Armor, Bar's, Main R ability that enables you to walk on water or lava, special Sword ability's and much more, join discord.
MCBoard
Panel up, No setup.
BAEnchants
Enchantments placeholder in game "Blue Archive"
twinkle popo mod
it adds twinkle popo realistic pikachu and realistic hellokity
OpenRouter Chatbot
OpenRouter Chatbot is a powerful and highly configurable Spigot plugin that integrates the OpenRouter AI API into your Minecraft server.
Claude Code: Rate Limited
A Fabric mod for Minecraft 1.21.1 that adds Claude Code enchantments, token limits, rate limiting, item recovery, loot-based enchanted books, achievements, and the Claude Terminal.
LiveJava
a VS Code-powered Web IDE that lets you build multi-class, hot-swappable native Java plugins instantly with zero reloads and automatic dependency injection.
Mana Lib
Adds a highly customizable mana bar to Minecraft, appearing above your hunger bar, which can be easily managed by NBT data.
Chorus Fruit - Spawn
Changes the behavior of chorus fruit to teleport you to your bed/spawn. Also teleports any mobs attached to your lead!
Player Mutations
A behavioral evolution system that mutates players based on their playstyle. Every cycle (default 3 days), the plugin analyzes player behavior and triggers mutations that fundamentally change how they play.