Minecraft Java 1.21 Mods
Browse 982 free mods for Minecraft Java 1.21 — popular picks include Sharpness Particles Refurbished, KamenRiderBossYOUandME, Weird and powerful weapons.
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Sharpness Particles Refurbished
A sharpness particles & particle multiplier mod for Fabric. (Refurbished)
KamenRiderBossYOUandME
Henshin! Step into this heated conflict. In “The Final Boss, You and Me”, it's like the fateful duel of Kamen Riders. The shining belt is the symbol of glory. Amid the intertwining of light and shadow, only the strongest can break through the darkness
Weird and powerful weapons
Some strange and powerful weapons add to Minecraft
Cursed Relics Dungeons
Cursed Relic Dungeons adds dangerous dungeons filled with secrets, traps, and hidden relic weapons with unique abilities. Explore hidden structures, discover powerful rewards, and survive deadly encounters.
Hold Your Enemies Closer
Inverted enchantments for more variety (Reverse Knockback, Auto-Smelt, Frost Protection...)
Cursed Blade Muramasa
Adds the legendary Muramasa from Japanese legends in a new structure.
DupeChest (Duplication Chest/Dupe Chest)
This mod adds a chest that duplicates/mirror the contents of your inventory. Infinite resources await, but only for those who conquer the end-game.
Aznos's TrollUtils
TrollUtils is a plugin that lets you mess with your friends or server members through a variety of options. From scrambling inventories to fake creeper hisses to imprisioning players, perfect for adding a bit of fun to your server
Verity Plus
Verity Plus Verity, a small, intelligent, yellow sphere who can do many things for you, but don't get to mean, he will get revenge.
Cookies, Candy and Cakes
Add cookies, candy and cakes for Halloween and other holidays. Fun seasonal treats with optional effects and mob drops. Fully configurable for servers and singleplayer.
EXTRACTROOMS
Backrooms-themed looter mod. Clip inside, loot randomly generated rooms, and find the exit before the timer runs out.
Image Previewer
Preview images in chatbar easily, efficiently. (No resourcepack needed)
Screentext
Screentext is a Minecraft Mod for Fabric 1.20.1 - 1.21.11 and Forge 1.20.1 - 1.20.4 that let you display custom Text, Timers, Counters and Texture on the screen with fully customization!
Smooth Particles Reborn
Adds the functionality to spawn particles when you place a block (reborn)
Dracenia
Dracenia is a dark-fantasy modpack built around Vampirism, Werewolves, and Ice and Fire. Choose a supernatural path, face dragons and legendary beasts, and survive a hostile world where power is earned through risk and mastery.
Create: Enhanced Totem Productions
Renewable totems of undying, so you can cheat death with confidence!
The Rift
Adds a Stealth dimension with multiple additives to after end game progression!
YouTuber Swords
The YouTuber Swords datapack adds a bunch of new unique, crazy, and OP swords themed around your favorite YouTubers. This datapack is meant to be overpowered and fun to mess around with, while not needing to fit perfectly into an SMP.
Arcane Empires & Ancient Evils
This modpack blends high-fantasy sorcery with sophisticated colony management to create a living, breathing world.

Warden bossfight
Turns a player into a boss with warden and sculk-based abilities
Reforgery
An experimental datapack that adds weapons of mass destruction such as orbital strikes, black holes, the death note and more...
crosswoods (alpah)
an horror game
Cobblemon Boosters
This is a Server side mod that adds different types of timed boosters to your server. These boosters can be used to increase the chances of finding Shiny Pokemon, or increases the catch rate!
Undertale 2 Effect Sprites (*AND SPELL ICONS!)
replace all your status effect icons with vaguely undertale related icons! (now with iron's spells & spellbooks spell icons!)
HappyDays
Explore the horrors that have entered the your system, and try to survive with them hunting you down like an animal.
CustomCrafty
A plugin that allows crafting recipes with NBT support for named and enchanted items.
Unstable Timepiece
A strange artifact that lets you manipulate your own time field, slow down time to reduce damage taken or speed it up to go fast!
ES CRAFT
A wonderful world for every lover of adventure, excitement and horror.

PickMeUp
Pick Up Entities and carry them somewhere
Invisi Blocks
Fake Blocks you can Walk Through!
Universal Totem
This turns everything into a Totem Of Undying, everything you hold will save you like a totem of undying.
More Soups Mod
New vanilla-style useful soups with many new effects like lucky block, and country-themed food (from stardew valley, horror mods, terraria and popular brands)
PySpigot
A Python scripting engine (plugin) for Minecraft servers running Bukkit or one of its forks (Spigot, Paper, etc.).
Backrooms: The Complex
A survival friendly, lore accurate backrooms mod with high quality visuals.
Chain Reaction Creepers
This mod makes creepers explode when they take damage from another explosion.
TNT Tweaks
Changes to TNT behavior like knockback, fuse time, and block breaking