Minecraft Java 1.21 Mods
Browse 129,730 free mods for Minecraft Java 1.21 — popular picks include Cobblemon Ho-Oh PC, Battle Axed, ServerPatches.
Step by step: How to install Minecraft Java mods & modpacks
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Cobblemon Ho-Oh PC
Replaces the PC Background of Cobblemon with Ho-oh from Pokemon Gold Edition
Battle Axed
Makes all Axe's Battle Axe's
ServerPatches
ServerPatches simply fixes crashes and other important exploits for older minecraft versions since paper doesn't have backwards compatibility. For 1.17-1.20+

Cinematic Horizon Shaders
A cinematic Minecraft shader pack featuring realistic volumetric clouds, reflective water, wet and shiny blocks, enhanced lighting, and performance-focused presets.

Item Counter HUD
A Item Counter Mod that helps you preview you specific items in you inventory
Rainbow Debris
This pack makes ancient debris rainbow, does not make anything else netherite related rainbow.
Bongo Cat
Adds Bongo Cat into your game!
Optimization Maximized
A Modpack with all the Optimization Mods in the World! (READ DESCRIPTION!)
Dary's Dark GUI
My own version of the dark GUI for Minecraft Java 1.21.x!

ICN Additions
This is a datapack created to house all crafting recipe modifications in the ICN Modpack I created.
Cuter Happy Ghasts
The cuter look of Happy ghasts
The Watcher (dweller)
The Watcher stalks you in your world, he will find and chase you
GG Hardcore SMP
For (Hardcore) SMP

Copper Armor/Tools
Datapack that adds craftable Copper Armor and Tools.
Dye Tweaks [Data Pack]
Adds the ability to duplicate dyes efficiently
Nitroserver
Lightweight serverside optimizations for Fabric 1.20.1, 1.20.6 and 1.21
NoHUD by Wondarkus
This resource pack removes the HUD from the game!
EBFsmp
The mod includes new biomes, decorations, tools and armor.
PolyLight - Simple Colored Lights
Adds colored lights to all vanilla blocks, entities and items. Requires Polytone
IWantToHitFromThreeBlocks
Improve your reaction speed with 3D reach visualization and dynamic crosshairs, and fine-tune your hit distance with the reach indicator
Classic Coins
Adds copper, iron, gold, and emerald coins with optional crafting recipes.
JEI-Left Overlay
The overlay of JEI with all the ingredients is facilitated by the mod on the left side of the screen.
Harvest Plus
Essential quality-of-life enhancements for mining, farming, and forestry without adding any new items.
Exosphere Worldgen Refabricated
Exosphere Worldgen for Fabric and new versions of the game.
Mentalitys | Custom Enchants
Custom fabric enchantments for 1.20.1, 1.21.1 & 1.21.11.
Cheap Recipes
Adds cheaper ender chest, golden apples, and cob web recipes.
Winter RPG Skill Trees
RPG Skill trees based around a vanilla Minecraft theme that allows players to grow stronger and specialize.
White & Icons
White & Icons — An aesthetic texture pack for your inventory.
MythicRewards
MythicMobs Support - Top damage rewards - 6+ reward type built-in - Create your own reward rule
Terraria Life Crystal Totem of Undying
Replaces Totem of Undying to Terraria's Life Crystal.
Orbital's Animated Survival
A 100% client-sided Modpack that aims to improve on the aspects Mojang ignores
Simple Tsunamis
A simple mod that adds Tsunamis
MCPS1
PS1-inspired modpack for Minecraft 1.21.5
Mace Enchantment Nerf
Nerfs Mace enchants enough to be viable in PVP
Dinnerbone Expansion
Dinnerbone? How about Lunchbone & Breakfastbone? A mod that makes entity flip 90 degrees.
Sky's Softer Cakes
A Minecraft Resource-Pack that modifies the cake textures to make them look softer