Minecraft Java 1.21 Mods
Browse 22,200 free mods for Minecraft Java 1.21 — popular picks include monsters-dont-burnin-the-sun, Observer Torcher, PTSL.
Step by step: How to install Minecraft Java mods & modpacks
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monsters-dont-burnin-the-sun
Monsters no longer burn
Observer Torcher
This mod allows redstone torches and comparators to react to observer pulses
PTSL
A mod made to quickly and smoothly create code using Playground's Text Scripting Language.
Styzex's ultra hardcore
This datapack disables the diamond armour recipes and limits the player to have only 3 hearts
Chromaglow
Automatically grants every player and pet a glowing effect, allowing them to customize their outline color and auto-hide it using contextual settings.
Echo Mod
A mod that adds EchoLocation to Minecraft.
Elytra Flapping
The Elytra Flapping Mod allows you to hover with the elytra, it also adds flapping mechanics to the Elytra.
Command Block Editor
Command block editor that lets you edit multiple command blocks at once
ModGuard
This plugin allows you to blacklist mods from clients before they join your server to keep a fair and equal play experience.
SinceEnchantments
The Ultimate, Highly-Optimized RPG Custom Enchantment System for PaperMC
Portal Lock: Dimension Control
Lock Nether and End portals behind items. Players must have specific items to enter dimensions. Fully configurable and server-friendly.
OuterOres
Exploits minerals in water to generate cobblestone and ores!
TickTally
Track your true Minecraft playtime across worlds and servers with clean, automatic tracking and zero fluff. TickTally keeps it simple, accurate, and entirely under your control
Sleep Vote
Skip the night democratically: Sleep Vote replaces the vanilla sleep mechanic with a server-wide voting system. Right click a bed at night to start a vote, and if the majority agrees, the night is skipped for everyone.
Join Leave Message Customizer
Custom Join, Leave messages. And adds private message. Simple plugin

Soul lock
A mod that lets you lock your soul to be a "god"
pxPassport
Passports with a beautiful GUI
Dark's Armor Control
Armor balancing plugin for SMP servers.
MCReportPro | Report Plugin All In One!
moyuReport is a comprehensive Minecraft server management plugin that provides an integrated reporting and banning system. The plugin enables players to report rule-breaking behavior while offering administrators powerful tools to manage reports and enforc
Lost Mazes
Oooooo... lost mazeesss... mid loooot
Keep On Chance (keepinventory)
Keeps players inventories on death if given chance succeeds.
Haunted Environment
Doors, glass, torches, it's like everything you touch is haunted.
Scrapped
Make scrap useless by removing the recipe for netherite ingots
Assembly Assembled | Extras
This datapack adds bridge information and rebalancing for the mods within the Assembly Assembled Datapack
AboveChat
Displays whatever a player chats on top of their nametag.
Pop!
This plugin adds a pop sound effect when a player logs in our out.
TwitchRandomizer
a minecraft randomizer challenge controlled by your twitch chat
Fast Creeper
Adds customizable, extremely fast creepers with configurable explosion modes (normal, charged, or End Crystal-level) via gamerules.

uncrafting inventory
What would happen if the recipes that you craft were reversed?

Stoddle's Simple Mech Datapack
Datapack that adds customizable mechs to the game.
Hextech Armory
This first alpha version of the Hextech Mod adds the Atlas Gauntlets and Mercury Hammer with working mechanics like blocking, dashing, projectile negation, and heavy damage. The gauntlets also have 3x3 mining in offhand. Players can now start crafting Hext
Rod of Discord
Introduce the Terraria Rod of Discord into Minecraft !
Raw Netherite
Modifies the process of obtaining Netherite
ChestLabels
This project allows you to add labels and icons to chests!
Forged Beyond Netherite
A NeoForge 1.21.1 mod that adds Enderite - a new tier above Netherite - and gives every armor trim pattern a unique ability.
UltraEvolution
🧠 Transform Minecraft mobs into intelligent, adaptive civilizations that learn, evolve, raid, build secret bases & upgrade gear. No more dumb mobs — ever.