Minecraft Java 1.21 Mods
Browse 137 free mods for Minecraft Java 1.21 — popular picks include MHDF-Tools, Wilds Regrown Api, Fennec: Jukefox.
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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✨
Wilds Regrown Api
A common API for all WildsRegrown mods.
Fennec: Jukefox
Music assets for the Fennec modpack
Sable Encounters
way of making sable sublevels spawn with entities/structures
WeatherCore
Library mod for registering custom weather conditions
Smart Ore Generation
A Minecraft data pack library for handling custom ore generation by using a smart system for ore location.
LY's Mapmakers Toolkit
Mapmaker Toolkit is a client-side Fabric mod for creating, editing, and visualizing command-style areas in real time. It includes a wand selector, local area library, in-world previews, and quick copy/teleport tools.
Marvel Metals
Marvel Metals adds powerful, hero-inspired metals and alloys into Minecraft. Discover rare ores deep underground, craft advanced tools and armor based on legendary comic style materials
Canalize
Canalize breaks the terrain generation framework of the original Minecraft, offloads the core heightmap calculations down to the C++ layer, and bridges them back to the Java game
Aetheria: Age of Oblivion
This is a Dark Fantasy RPG-style compilation with an emphasis on complex combat, exploration of dangerous dungeons, and magic.
RTP random
This is the most lightweight RTP plugin
Trillion O Trees
An overworld mod adding many more tree types and forests... some added structures too
HardcoreAxol's Mithril Mod
this mod add mithril to minecraft
Xwarps
Xwarp is a Minecraft plugin that allows players to set and teleport to custom warp points with countdown timers, movement cancellation, and customizable warp icons for a seamless and immersive teleportation experience.
Regions Unexplored Biome Book Compat
This mod adds the regions unexplored biomes to the biome book mod.
XMyIsland
A comprehensive island management plugin that brings robust protection, intuitive GUI management, and economy integration to your Minecraft server.
AetherDrop
AetherDrop is a powerful and fully customizable airdrop event plugin for Minecraft servers, designed to create exciting, reward-filled events where crates fall from the sky with stunning visual effects and valuable loot.
CorruptionCraft
A plugin that challenges players. Random events can occur. (no Spoilers!)

Slime Tweaker
Small mod that adds a gamerule and config to change the size of spawned slimes.
Aran's Discord Presence
A lightweight, customizable Discord Rich Presence mod for Fabric. Features a built-in settings menu to toggle Server IP, biomes, dimensions, and player heads on your Discord status.
how low can you go
Rewards you for going deeper in the world with increase spawn rate of ore except diamonds
ServerGate
ServerGate locks your Minecraft server during maintenance, requiring players to enter a secret key to join. Supports Minecraft 1.8+ with timeout, attempts limit, and admin bypass.
Sellmenu
Plugin for creating stores for your server Easy to use plugin supports itemadder itemedit itemtag plugins Must have vault
CyberWorldReset
Easily reset a world with a scheduler or a specific time/date and more!
EditVillagers Plugin
The easiest way to create a Trader in Minecraft!
LibVilNam
Cross-mod village name generation compatibility library. „Welcome to [YOUR VILLAGE NAME HERE], village-chief-sama! UwU”
Projection Boundary
Why use a boring invisible wall when you can turn the world border into a glitching, collapsing simulation?
Entity Block
Adds the Entity Block to make creating custom structures easier
Wildborne - Worldgen & Data Tweaks
This is a specially designed Modded DATA pack to implement worldgen/tag/data tweaks for the upcoming Wildborne Modpack!
Materials Lib
Create materials easily
ikbLib
An API for density functions that use the world seed, voronoi/cellular noise, and new fluid behaviors

Planet - Border teleport
Border-teleport mod: teleports entities crossing world borders (±326) to opposite side. Perfect for 1:326 Earth maps. Open-source (remix allowed, but must keep code open).
SimplePunishments
Simple punishment plugin for medium sized servers!
Loremaster
The Loremaster in his Library will give guide books you can borrow.
TheFourLeafCollective
A modpack made to specialize in four main archetypes, tech, magic, exploration, and building!
HeadDropDimensions
This a Plugin that Drops heads based on chance pvp or pve and u can disable in each dimension or increase or decrease the chance in each dimension