Minecraft Java 1.21 Mods
Browse 113 free mods for Minecraft Java 1.21 — popular picks include PySpigot, Customizable Dragon AI, Draventh Ores.
Updated daily
PySpigot
A Python scripting engine (plugin) for Minecraft servers running Bukkit or one of its forks (Spigot, Paper, etc.).
Customizable Dragon AI
Useful Datapack to customize the Ender Dragon's AI
Draventh Ores
⚒ Advanced Tier Ores & Equipment This mod expands Minecraft’s survival progression by introducing 15 new late-game materials, each with full armor and tool sets. The goal of this mod is simple: Extend progression beyond Diamond and Netherite with a struc
Creepypasta Pack!
Adds the five most terrifying entities
Trashlib
A library mod that adds utility methods that are used by trashoflevillage mods.
Neo TranslucencyFix
Enables translucency for HUD and GUIs in Minecraft's newer versions.
More Villages Datapack
Adds more villages to the game.
Kappa's AntiCheat
A lightweight Fabric anti-cheat designed for high performance on large-scale servers.
Sinytra Connector Crash Fix
Fixes crash in Sinytra Connector
Forceskin Lib
Forces everyone to have a summer floatie overlay on their skin, all in vanilla. Also used as a library to make your own forceskin packs
Horror Maximized Features
Extra features mod for the modpack Horror Maximum
Big Items API
A really simple library that allows developers to make items take up more inventory slots.
Merged Items
Adds a merging mechanic for items. Items can 'store' other items and will inherit their attribute modifiers.
CC: VR
CC: Tweaked x Vivecraft Addon
ItemDisplayPlugin
This plugin allows the collection of items dropped within a 5-block radius in Minecraft, merging the items with the same type and displaying their quantity in the item’s custom name. Items that cannot be stacked, such as enchanted equipment (e.g., swords,
Mc_Amp.Zip
Changes Minecraft's music library to a analog horror
CC: Advanced Math
A datapack adding advanced mathematical libraries to CC: Tweaked!
Loot Inject
A simple mod that allows injecting a loot table into an existing table
Deltatime
Keep track of the real time even on laggy servers (uses the worldborder method)
IBREALISTIC
The Unofficial fork of OpenBoatUtils, original by o7moon. This mod added MORE realistic rally aspects for IBREAL or another server
WLIB
Static utility library built for dynamic bukkit plugins
Music Collection - Just Shapes & Beats
Adds a new musical experience, New Fragment + New Record Mold + New Structure "Music Shack" + 15 New Records! + New Crafting + New Achievements + Secrets...
Auto Logout
A mod that automatically kicks yourself from server once a player gets in range of blocks that u set, allows u to afk farm and play safe.
CoffeeProxy
This mod allows joining Minecraft servers via a SOCKS/HTTPS proxy (Fabric)
Easy Freezing
A mod that allows you to Freeze Time around you at will! Try with multiplayer and things get confusing fast!
eesa
Extended Equipment Slot Adapter - A bridge between curios and trinkets
Espoir SMP
The plugin's twist is ⚙️ How the system works: 🧿 You start with 3 souls. 🔻 Each time you die, you lose a soul. 💀 At 0 souls, you become a ghost: spectator mode for 24 hours. ⚔️ Kill a player → you steal one of their souls, if you don't already have all
Aluminis Inject
A dependency-injection based framework mod for simplifying creation of minecraft mods
SoraxPhysic
Physics Engine in a Minecraft Plugin - 1.21 paper
Annoying Effects
New status effects that makes it harder and more annoying to survive and explore.
SSaVS MOD
Server Security and voting system - add custom ui (not inventory) and way to PAPER servers block ANY mods/rp in client. Support ONLY for 1.21.4
Biomes O' Cataclysms
This mod transforms Vanilla Minecraft into a challenge! One by one, all biomes will be destroyed, so try to complete the game before the end of the world!
![BL Screenshot Gallery [BLSG]](https://pub-2ae937f770284535a96c3330f91236aa.r2.dev/thumb/modrinth/105747.webp)
BL Screenshot Gallery [BLSG]
A modern in-game screenshot gallery for Minecraft that automatically saves where, when, and what biome every screenshot was taken in, with a clean visual browser directly inside Minecraft.
CorruptionCraft
A plugin that challenges players. Random events can occur. (no Spoilers!)
MoreDisc
Transform your jukebox into a real playlist with MoreDisc!
Katalis
Contains a set of libraries written by me, packaged into one JAR for easy integration.