Minecraft Java 1.21 Mods
Browse 125,347 free mods for Minecraft Java 1.21 — popular picks include Easy Emerald, Perf Boost, Aeternum Realism.
Step by step: How to install Minecraft Java mods & modpacks
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Easy Emerald
An easy way to craft emeralds
Perf Boost
Perf Boost is a Fabric mod for Minecraft 1.21.10 that adds a toggleable performance HUD (FPS, RAM, CPU, ping, etc.) and an optional performance mode.
Aeternum Realism
RealPix 32x brings a semi-realistic twist to Minecraft with detailed 32x textures. It enhances blocks and items with sharper, more immersive visuals while keeping the game’s original charm. Great for survival and creative play.
Debug Keys (F3+T) Everywhere
Allows you to reload resource packs with F3 + T while not in a world or with a GUI open, useful for speeding up pack development. Now works for all F3 keybinds!
Ice And Fire Smithing
Progression-based smithing for the Ice And Fire mod.
Woodlands:Extra
Most vanilla biomes overhaul+42 new biomes to make the world look more realistic and interesting to explore
Better One Block
Mine a block in void or other places at the same position over and over, get better and better.
Dynamic Difficulty (Neoforge/Fabric)
Dynamic, Configurable Mob Leveling System!
Cooperative Advancements [Fabric]
A simple mod to share advancements between all players in multiplayer games.
Resource Cracker/Tools
Gather Resources with ease.
Grappling Hook Mod: Skybound
Grapple onto Create contraptions, Sable airships, and everything in between. Classic grappling hook physics, modernized for Fabric & NeoForge 1.21.1+
Wing Kirin - Dragon Survival Addon
This is an addon for Dragon Survival,adding a new Chinese style species——Wing Kirin.
Tensura Reroller
Allows you to reroll your skills!

NoNarrator
A simple mod that disables the narrator feature in Minecraft.
[BTB] Back To Basics
BTB is a shader that emulates the looks of old retro PS1 3D games.
Modern UI mVUS
UNOFFICIAL Fork of ModernUI-MC to add minor version update support.
I'm sorry but the Elytra is in another End City
The Elytra can no longer be obtained in End Cities.
Simple BC Pipes
A simple item and fluid transport mod to show the various features of LibBlockAttributes and provide a useful testing base for other mods using attributes.
Ars Fauna
Adds variants of mobs from Ars Nouveau to the world for ambience.
Bad Dreams
Adds [Configurable] Nightmares When Sleeping in The Dark.
Elytra Chestplate
You can equip and use chestplate and elytra at the same time
UnstableSMP - Law Fight
You've all seen those Minecraft videos like 1 vs 1000, 2 vs 1000, and etc. Would you like to try fighting against that many players yourself? If so, this ModPack is just for you.
Shtreimel - Sable Utility
Server-side admin tools for Sable and Create Aeronautics on NeoForge 1.21.1: list, inspect, freeze, archive, and remove sub-level grids; surface lag suspects in the console; enrich crash reports.
Ring of Blink [FABRIC/FORGE/NEOFORGE]
Travel around like an Enderman
Applied Replicatics
An add-on that integrates Applied Energistics 2 and Replication, adding Storage Cells for storing Matter.
Arrow Entity Loot Drop
Makes Entities shot with Arrows drop them upon death
LootStories
LootStories adds a bit of mystery and lore to your adventures by placing written books inside loot chests.
Fresh Dungeons
A Fresh Animations addon for the Dungeons Style resource pack
Zelda, Legend of the Master Sword
Complete the Master Sword and Become the Hero of Legend!
Cobblemon: Paleontology
Adds a new Villager Profession, enabling an easier method of obtaining rare fossil Pokemon that are otherwise a pain to find.
More Quest Types
An FTBQuests Addon that adds 14~ new tasks and 11~ new rewards!
Copperworks
Adds new uses for copper with new items, blocks, and redstone components.
DiscCord
A mod that allows you to write music URLs on a Custom Record to play in a Jukebox
EAS Addon for ProtoManly's Weather Mod
This is an EAS addon mod for ProtoManly's weather mod, adding the EAS Block and Transmitter to detect & give out warnings for storms.
Nice Villagers Remastered
Villager & Village Names, New Trades, New Structures, New Advancements and many more tweaks and additions to truly remaster Villagers
Enchants Squared - The EnchantsPlus rewrite! [1.14-1.21.11*]
50+ Highly customizable vanilla-like enchantments. w/ WorldGuard, Geyser, & Jobs compatibility