Minecraft Java 1.21 Mods
Browse 2,272 free mods for Minecraft Java 1.21 — popular picks include Sinytra Connector Crash Fix, Backrooms Through The Walls, LeadTheVillagers Reborn.
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Sinytra Connector Crash Fix
Fixes crash in Sinytra Connector
Backrooms Through The Walls
Adds level 0, level 1, and the bacteria entity.
LeadTheVillagers Reborn
Make villagers leashable
CustomCrafty
A plugin that allows crafting recipes with NBT support for named and enchanted items.
Kinetic Weaponry
Small equipment mod made for ModFest 1.21!
Better Villager Trading
A client-side mod for better villager trading
TNT Tweaks
Changes to TNT behavior like knockback, fuse time, and block breaking
Minecraft But a Mob Spawns Every 10 Seconds
Minecraft, but a random mob will spawn on top of you every 10 seconds, good luck.

PickMeUp
Pick Up Entities and carry them somewhere
Grid World Generator
Exactly 89.67% of the world is gone! Take this challenge and try thriving in a world where terrain is sparse, resources are scattered, and every block counts. Can you survive in the void between the grid?
Skibidi Brainrot Mod
This mod adds a bunch of brain rot items such as a balkan rage potion, a skibidi potion, fanum taxing, ohio mod, and a low taper fade helmet that makes you massive

oSzoukaua's: Real Height
A Datapack/mod that provides a simple chat-based UI to adjust your player height! both in Centimetres and Feet/Inches!
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.
PySpigot
A Python scripting engine (plugin) for Minecraft servers running Bukkit or one of its forks (Spigot, Paper, etc.).
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)
FNAF Dreams and Nightmares (Work Game)
Mod will recreate the creepy atmosphere of FNaF 4
Reduced Invincibility Frames
RIF stands for 'Reduced Invincibility Frames.' The purpose of this mod is to reduce iFrame duration or disable it.
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.
Firework++ - Longer Craftable Durations!
Additional firework booster crafting recipes for elytra! Longer flight times with more gunpowder!
Cursed Table Revamped
Allows curses to appear randomly in the enchanting table. Game rules can be used to further customize availability, including removing curses from the table, or adding treasure enchants such as mending.
Dirt Conduit
Removes the Prismarine Block restriction from conduits
HaramCraft
This is a very small mod that lets players learn about the significance of halal food in Islam!

Totem of Null
The Totem of Null, From Unstable SMP which when popped, Tagged players die.
Project: Explosive
Adds realistic explosions while keeping Minecraft’s vanilla style.
the broken script two
The Broken Script Two is a dark adventure mod for Minecraft 1.21 that shatters our very perception of the world. You play as the Scriptbreaker, a wanderer with the power to alter the code of reality. Experience stories intertwined with nightmares.
BlockShips
build ships or airships out of blocks and sail or fly them smoothly - without client side mods or resource packs! Uses display entities to allow non-grid-aligned blocks

Vertical Lunge
Allows the lunge enchantment to launch you vertically
TNT Every 15 Seconds
Can you beat Minecraft while TNT spawns on you every 15 seconds? A fun way to challenge yourself!
Dinnerbone Gravity [Dinnerbone Floats]
The mobs named "Dinnerbone" fall upwards because they're upside down.
Jeck230NOTREALWORLD
AI-generated horror mod that adds the mysterious entity Jeck230, disturbing sounds, and a strange “not real world” atmosphere.
One Billion Things
All your suggestions, in one mod. More of a showcase than anything.
SKT's Improved Piglin
Improve piglin & piglin brute loot table when bartering or killed by player
Customizable Dragon AI
Useful Datapack to customize the Ender Dragon's AI
Hold Your Breath
When you go underwater in-game, you need to hold your breath in real life.