Minecraft Java 1.21 Mods
Browse 125,951 free mods for Minecraft Java 1.21 — popular picks include WorldTools, Better Cats!, Invisibility Aggro Fix.
Step by step: How to install Minecraft Java mods & modpacks
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WorldTools
WorldTools is a powerful Minecraft mod that allows you to capture and save high-detail snapshots of server worlds locally.
Better Cats!
Cute Cats!
Invisibility Aggro Fix
Simple mod that ensures hostile mobs can’t detect or attack you while under the invisibility effect, fully restoring true stealth gameplay!
NoShader
Very simple "shader" :)
Vampirism Iron's Spells Compatibility
Vampirism mod now integrated with Iron's Spells Blood magic. Use your blood to reduce cooldowns, use blood ray and bite to restore blood! Also aware of Holy spells!
DnT Stronghold Overhaul LITE Edition
Server and low end PC friendly version of DnT Stronghold Overhaul
Purified Flesh Mod
Purify rotten flesh!
Iron Furnaces (Fabric & NeoForge)
The Iron Furnaces Mod for newer versions of NeoForge and Fabric
Private Messages
Simple private messages for server
Pitch Shifter
Pitch Shifter Is An Addon For Simple Voice Chat, Allowing For The Pitch And Other Things Of Your Voice To Be Changed! It functions as a Simple Voice Chat Voice Changer!
CBC Neo Warfare
A complete port of CBC: Modern Warfare to 1.21.1! Compatible with Create Aeronautics/sable.

Gamma Utils 1.14+ Night Vision Icon
Replaces Gamma Utils’ outdated green Night Vision icon with the modern blue eye style introduced in Minecraft 1.14.
Roughly Enough Items Server Component (REISC)
A mod to implement the REI server networking protocol to handle server-specific features.
Allure 3D Plants
Remodels Flowers and other Plants into cute 3D models in the style of Allure!
QuickBackupMulti
A backup / restore mod, with multiple backup slots
Treasures of the dead
This is a mod that adds new pirate enemies, structures and many other features, inspired by Sea of thieves.
Forgotten Church
Adds a creepy abandoned church with zombies and hidden loot

Boat Utilities
Add some utilities to the boats!
Spell Vulnerabilities
Configure custom resistances and vulnerabilities for mobs to different spell schools
Uncrafting Recipes
Uncraft nearly all vanilla items in the game
FNAF - Fazcraft Reimagined | Based on FNAF!
FNAF: Fazcraft Reimagined brings the feeling of Five Nights at Freddy’s into Minecraft in a way that’s actually unsettling.
Glow Sticks
Glow Sticks sticks in different colors which can be lit up in the world / underwater for a limited time for better exploring and/or for rpg.
Inf Chest
Add "infinite" chest
Restore Chat Links
Clickable player chat links
Visible Toggle Sprint
A simple mod to make toggle sprint & sneak better!
red cpvp 16x
A red CPVP pack 16x for better looks
QuickShop-Hikari - A powerful, user-friendly and reliable ChestShop plugin [1.20-1.21]
A shop plugin that allows players to easily sell/buy any items from container without any commands.
Redone Endermans X Fresh Animations
an addon for fresh animations that make the redone endermans texture the texture of the enderman
Tunes n' Tomes: a bards journey
An Iron Spells n' Spellbooks addon that introduces the sound school from the Alshanex Familiars mod rebranded as Melodic School and expanded
Mekanism: Enchantable MekaSuit
The MekaSuit is enchantable!
Create Wet Cardboard
Adds Soggy & Wet Cardboard Swords to Create
Create Aeronautics [Offroad] Addon: StickyWheels
A Minecraft addon that adds a sticky honey-based wheel allowing vehicles to stick to any surface, including vertical walls and upside-down paths. The wheels come in 4 sizes, like off-road variants, and are fully craftable.

Purple Icons
Purple GUI / HUD icons!
Bare Bones - Emissive Ores
Adds glowing emissive effects to ores, enhancing their appearance while maintaining the minimalist style of the Bare Bones pack.
Fresh Outlines
A resource pack that adds outlines to blocks!
Create: Petrochem
Realistic oil refining comes to Minecraft