Minecraft Java 1.21 Mods
Browse 108,514 free mods for Minecraft Java 1.21 — popular picks include When Dungeons Arise - Forge!, Skin Layers 3D, Ore Excavation.
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When Dungeons Arise - Forge!
Adds various elegant -and likely hostile- roguelike dungeons and structures that generate on your worlds!
Skin Layers 3D
Render the player skin layer in 3d!
Ore Excavation
A lightweight veinminer alternative
Reborn Core
Powering Team Reborn
Titanium
Library for Horizon Studio
Brandon's Core
This is the core mod that will be used by most of my mods from now on
YUNG's Better Strongholds (Forge/NeoForge)
A complete redesign of Minecraft's strongholds
Just Enough Professions (JEP)
A JEI addon that adds profession workstations
Draconic Evolution
Draconic Evolution is a mod that adds some extremely expensive high tier items to the game.
Macaw's Trapdoors
Adds vanila trapdoors in every plank variation, and some new trapdoors too!
Silent Lib (silentlib)
Library to make writing and maintaining mods easier.
Integrated Tunnels
Transfer other stuff over Integrated Dynamics networks
ZeroCore 2
Utility mod and multiblock API
Trash Cans
Trash Cans adds trash cans which can be used to void items, liquids, and energy!
Akashic Tome
The Book of Books. Store every documentation book in one.

Fabric Language Kotlin
This is a mod that enables usage of the Kotlin programming language for Fabric mods.
Security Craft
Adds plenty of blocks and items to defend and secure your base with.
Reliquary Reincarnations
Many magical items to help you in your minecraft world
SwingThroughGrass
Kill mobs and players through grass
FTB Essentials (Forge & Fabric)
Adds many essential utility commands for servers
fix GPU memory leak
A mod that fixes memory leaks on the client
The One Probe
More immersive alternative for WAILA
Legendary Tooltips [Neo/Forge]
Give your rare items a fancier tooltip! Also adds additional tooltip configuration options.
Extreme Reactors
This is a port of the Big Reactors mod by Erogenous Beef to the current Minecraft versions
Compact Machines
Adds one simple game mechanic: Small rooms inside of blocks. It basically gives you the ability to build your contraptions inside of a single block.
Corail Tombstone
Keeps safe your inventory items in graves on death with many features for better survivability and exploration, in a medieval fantasy atmosphere related to the decorative graves & the haunting souls
Repurposed Structures (Neoforge/Forge)
Adds more variations of vanilla structures and features such as a Jungle Fortress!
Actually Additions
Fan-favorite magitech mod full of fun and useful gadgets
Prism [Neo/Forge]
A library all about color! Provides lots of color-related functionality for dependent mods.
Structure Essentials
Essential features for structures: Faster locating, distance adjustments, nearby structure command, automatic structure biome compat, structure overlap prevention, random source crash prevention, debug logging and more
Spice of Life: Carrot Edition
A mod based around food that rewards the player instead of punishing them for discovering new foods!
FastSuite
A performance upgrade for the JSON recipe system.
Kiwi 🥝 (Neo/Forge)
Minecraft modding library
Sodium/Embeddium Dynamic Lights
Multiloader port of LambDynLights that adds Sodium/Embeddium settings support
Lithium (Fabric/NeoForge)
An optimization mod for Minecraft which improves server performance significantly.
Charm of Undying (Fabric/Forge/Quilt)
Adds curios and trinkets support for the Totem of Undying so you can place it in a slot and don't have to be holding it. Formerly known as Curio of Undying and Trinket of Undying.