Minecraft Java 1.21 Mods
Browse 126,370 free mods for Minecraft Java 1.21 — popular picks include Monkey Utils, No More Amethyst Geodes, Hide and Seek.
Step by step: How to install Minecraft Java mods & modpacks
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Monkey Utils
A declarative Kotlin focused Minecraft utility library for commonly used features of my mods.
No More Amethyst Geodes
Removes Amethyst Geodes from the world generation.
Hide and Seek
Turn your world in to a Hide and Seek Minigame
Redstone Tweaks Overlaid
Add Redstone Tweaks to your favorite resource packs
Emissive Trim Armors
With this resource pack the armor trims are brilliant, no OptiFine required.
Crops Need Sky
This mod makes crops and plants require direct sky access to grow.
MC-258859
Improves visuals of Snowy Slopes, Frozen Peaks, Jagged Peaks, Terralith & more by fixing what Minecraft classifies as a 'slope'

String Dupe
Put one string in the crafting table and get 64 back, leading to infinite string.
Zombie Apocalypse Core [ZAC]
Necessity for zombie apocalypse modpacks. Day counter, Entity multiplier and entity spawn prevention (blocklist), day light resistance (no daylight burning), customizable zombie drops, zombies break blocks, and more.
Ride The Wind
Elytra-like wings that provide limited creative flight!
Elevators
A lightweight and simple means of vertical transportation
Items & Stuff X Enchantment Outline
Compatibility for Items & Stuff and Enchantment Outline
Improved Default Textures Pack
Small tweaks made to Minecraft's bland, old, repetitive, and disliked textures to improve the gameplay and building expieriance
CobblemonMoreCosmetics
More Pokémon and trainer cosmetics for Cobblemon!
ToggleSneak
The OG ToggleSneak mod
Doped Horses - Faster, Enchantable & Configurable horses
Faster horses with enchantable horseshoes or depending the block they're walking on. You can even configure the step height !

Better Enchantment Order
A Simple, Visual Only, Datapack that changes the Tooltip Order of Enchantments!
Der's Smooth Shaded Font (Faithful 32x)
10'000+ Shaded Glyphs | Config | Hypixel Skyblock & Wynncraft Support | Languages | Tweaks | The most advanced smooth shaded font | MC 1.6.1-26.2+

Faithful 32x Daggers
Changes swords to a more pvp oriented texture
Wemmbu MACE ATTACK!
Wemmbu MACE ATTACK! basically changes the sound of the mace, to Wemmbu iconic line where he says "MACE ATTACK!"
Matralys 16x
A Gray Themed Minecraft PvP Texturepack for Mace PvP
DamageTintPlus
Toggle showing the damage tint on player/horse armor + change color
Mekanism: Automation
Bring Mekanism to the next level!
delta_force
It's a weirdly styled Delta Force style mod
Piglin Quartz Tower
Adds a Piglin guarded quartz tower to the Nether, decorated inside and filled with loot
Instant Smelt
A simple quality-of-life mod that smelts all raw ores instantly upon mining, letting you skip the smelting queue.
Oblivious Core
A modular API designed to support and unify systems across Foufakirby's Minecraft mods.
Avalon Cobblemon Oficial
Pack with Cobblemon and some Perfomance Mods - The server Included in the pack has PokeLoot, Mega Evolutions, Legendary Forge System, BattleTower, Legendary Encounters, Shiny and Hidden Chains, Z-Moves and more!
SomeOrdinaryTweaks
Completely client-sided mod that offers various toggle-able QOL changes and tweaks (GUI, Game/World Interaction)
Custom Events Plugin - ExecutableEvents
A tool that allows you to customise the events that occur on your server.
Fantasy RPG - RPG Quests, Bosses & Magic | Fantasy & RPG
A new modpack that combines the best Fantasy and RPG mods!
Compostables
Compostables is a server-side mod that allows you to compost dozens of additional items
Annuus
Annuus is a mod for minecraft networking, improves network performance and makes the game more available for running on large server.
I want it earlier (Mounts of Mayhem, IWIE)
This Minecraft Mod adds things from the Minecraft Live before Mojang publishes them in a snapshot! Or just backport the new stuff..
Phonk Edit Mod
Transform your gameplay into viral YouTube Shorts memes with phonk music, visual effects, and beat-synced camera!
Haven Plushies
Adds adorable, customizable plushies to your Minecraft world.