Minecraft Java 1.21 Mods
Browse 3,577 free mods for Minecraft Java 1.21 — popular picks include Untitled Duck Mod (Forge), GTBC's SpellLib/API, Amecs (Fabric).
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Untitled Duck Mod (Forge)
Ducks for Forge and Fabric! Powered by geckolib and architectury.
GTBC's SpellLib/API
A library mod and common code storage for all of my mods containing helpful tools to make my life easier with ISS add-on making!
Amecs (Fabric)
Improves your keys & controls setup by providing modifier keys and making multi-functional keys a thing.
UnionLib
A library mod for all my mods
Caelus API
A coremod and API to provide developers access to elytra flight mechanics through an entity attribute.
Cobblemon Tim Core
What if my Cobblemon mods worked without a bunch of copy/pasting?
[Let's Do Addon] EMI Compat
EMI compat with all of the Let's do series
Configuration
Configuration library for easy config management
Guidebook
Custom books with formatting and pictures
Configurable
Config library that allows decentralised settings in a mod
Blueprint
Library that implements the framework of all Abnormals mods!
Oh The Trees You'll Grow
Tree library used by popular mods such as Oh The Biomes You'll Go.
Kambrik
A Kotlin Library Mod
Lexiconfig
This is a config API that aims to provide many integrations alongside other libraries, and to be as easy as possible to use, for both developers and users alike.
More RPG Library
Library with status effects, entity attributes & Spell engine API additions.
Loading Backgrounds
Customize the loading background of the games, and place customizable images.
[Deprecated] Trinkets Compat Layer for Accessories
A Compatibility layer for mods using the Trinkets API to work with Accessories
Dynamic Asset Generator
Library mod for dynamically generating assets at runtime.
Create: Liquid Fuel
Pump in liquid fuel to blaze burners
Deltabox Lib
A Kotlin library for all Deltabox mods!
Fragmentum [Forge Edition]
The lightweight framework for the Obscuria Collection multi-loader mods
Every Compat (Wood Good)
Universal Wood Compat: Quark, Twilight Forest, Twigs, Another Furniture, Farmers Delight, Macaw's, Valhelsia, Architects Palette, Deco Blocks, Crayfish FM
Foolproof
Utility for modpack devs that fixes commonly reported areas of user confusion
KubeJS Additions
[NEW] Custom JEI Categories & Jade Integration
Accessories Compatibility Layer
Modifies commonly used Accessory API's to work with Accessories, unifying a modpack under one Accessory API
Restricted Portals
A mod that requires the obtainment of an item before allowing the player to enter a dimension.
MaFgLib
MaLiLib unofficial forge port. Library mod for the Forge port of masa's mods.
StartInv | Seconds of Immortality!
You will start with a few seconds of immortality! You will never start dying again
AutoMessage
Now you can send automatic messages at any time during the game!
Library Ferret
Shared code for the mod of jtorleon studios
Omega Config
Simple & lightweight configuration library for Fabric
GPUBooster
Provides DSA & fastest math formulas to game render system for best perfomance! Compatible with Sodium/Embeddium, Iris and shaders.
TCT Core
This mod allows you to centralize all the other mods in order to be able to access the information or settings directly in the game
Revelationary
Data Driven Block and Item Revelation system. Discover as you go!
WTHIT Forge Edition
Forge version of WTHIT, a fork of Hwyla which is a fork of Waila.
Differentiate
A modding library for Eltrut & Co.