Minecraft Java 1.21 Mods
Browse 11,182 free mods for Minecraft Java 1.21 — popular picks include AR's OreUI - Dark, Blocky 3D Replacements, InvisAlert+.
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AR's OreUI - Dark
Resource Pack based on leaked GUI update, but Dark
Blocky 3D Replacements
A collection of 3D iron bars, ladders, rails, and more to replace the paper-thin ones. Also includes cobweb and dripstone models.
InvisAlert+
InvisAlert+ replaces the barely visible invisibility particles with a clear on-screen warning so you instantly know when invis is active. Client-side only and works on top of any texture pack. Made for PvP and survival.

Seedy Saplings
Changes the name and appearance of sapling item to seeds of their respective trees, as well as making recently placed saplings appear as sprouts!
Redstone: Recharged
A collection of redstone fixes, expansions, and tweaks.
High Resolution Paintings
Swaps Vanilla Paintings with high resolution original Art.
Immersive Interfaces - EMI
This texture pack adds support for EMI, matching its design with the look and feel of Immersive Interfaces.

Animated loading screen - Monochrome logo fix
Small fix to make it work with the monochrome logo feature.
No Pumpkin Blur and Low Fire
This pack removes the pumpkin blur and lowers the fire overlay
BananaFault
Its like default, but better
Powder Snow Alerts
For all those times when you have fallen into powdered snow! Makes powdered snow have an exclamation mark.
Black PVP Overlay
This is a PVP pack focused on crystal and sword PVP
More Ancient Debris (20x)
Tweaks the world generation to get 20x more ancient debris spawn rates! Way too overkill...
SKT's Purple Ender Things
Change all ender related items to purple
3D Harnesses
Have you ever wanted 3D Harnesses for your happy ghast? Well if so then this pack is for you!
SPBR - Revanilla
Reverts SPBR changes back to vanilla
Creeper Recrafted:FA
This resource pack makes the creeper look more plant/moss like but with Fresh Animations
Fake Hardcore Hearts
Changes the texture of the heart bar on the HUD to the "hardcore" version.
Alternative Custom Player Animations
Some alternative player animations for the custom player animations mod
Visceral Combat
Visceral, Responsive, Momentum-Based Tweaks for Better Combat
Unique Spawn Eggs Add-on
A update for Gouchnox's (outdated) Unique Spawn Eggs
Smaller Mace
Makes the in-game handheld mace model much less obtrusive.
John's Enhanced - Alacrity PBR Addon
PBR support for Alacrity resourcepack
Nebryx PvP + Swight
Clean vanilla-style PvP texture pack made for SMP gameplay, featuring low fire, small Items, side shield, clear textures, and FPS-friendly visuals for the perfect competitive experience. With addition of the classic Swight Overlay which helps to improve!
Furnaces Reimagined
Furnaces Refueled!
Onimai Asahi Inventory Animated
Animated Inventory Gui with Asahi
Clarity PvP Pack + FPS Boost
A clean PvP texture pack that removes distractions and gives you maximum visibility in every fight.
Shiny Ores x Whimscape
Makes Shiny Ores compatible with Whimscape
Shader Panorama For 1.21.4: Garden Awakens
A panorama with shader for 1.21.4: Garden Awakens.
红显调谐RedstoneTuning
This project can add directional indicators to all Redstone-related blocks via a self-illuminating method, with the effect working properly both during the day and at night.
Fullbright+Lowfire+Lowshield
Three classic PvP/visibility tweaks in one: Fullbright, Low Fire and Low Shield.
Biome'd Creepers
An EMF resource pack that gives creepers a new look, unique to many biomes! Supports Fresh Animations!

BlubWolf's Purple Wither Hearts
This small resource pack recolors the Wither effect hearts to a clean, dark purple, making them easier to distinguish.
Papercraft
Render your game as a pencil sketch, a cartoon, and everything in between. All in Vanilla Minecraft.
Hatsune Miku Totem
Turns the vanilla totem of undying into Hatsune Miku!
Visible Tripwires
Resource pack for Minecraft that improves visibility of tripwires by changing their texture and model to a new, more visible one.