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Minecraft Java 1.21 Mods

Browse 3,576 free mods for Minecraft Java 1.21 — popular picks include AeroBlender, Configured Defaults, TerraBlender (NeoForge).

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AeroBlender
1.21.1neoforge

AeroBlender

AeroBlender is a library mod dependent on TerraBlender, for adding biomes in a simple and compatible manner with Aether's biome/terrain system.

25Mdownloads
Configured Defaults
1.21.11neoforge

Configured Defaults

Allows for providing defaults for files absent in .minecraft like configs. A quintessential modpack utility.

25Mdownloads
TerraBlender (NeoForge)
1.21.11neoforge

TerraBlender (NeoForge)

A library mod for adding biomes in a simple and compatible manner!

25Mdownloads
Moog's Structure Lib (moogs_structures)
1.21.3neoforge

Moog's Structure Lib (moogs_structures)

This is a library mod for the Moogs Structure series

24Mdownloads
AlchemyLib
1.21.5neoforge

AlchemyLib

AlchemyLib contains shared code for machines and screens. It's used by Alchemistry and other mods.

24Mdownloads
Prism [Fabric]
1.21.11fabric

Prism [Fabric]

A library all about color! Provides lots of color-related functionality for dependent mods.

23Mdownloads
Trinkets
1.21fabric

Trinkets

A data-driven accessory mod

23Mdownloads
XyCraft
1.21.1neoforge

XyCraft

Sci-fi Aesthetics and Technology

23Mdownloads
Puzzle
1.21.8neoforge

Puzzle

Adds resourcepack features and a GUI to more conveniently configure OptiFine alternatives.

22Mdownloads
Pufferfish's Attributes [Fabric & Forge & NeoForge]
1.21.5neoforge

Pufferfish's Attributes [Fabric & Forge & NeoForge]

Adds more attributes to the game.

22Mdownloads
Athena
1.21.1fabric

Athena

A crossplatform (Forge/Fabric) solution to connected block textures for 1.19.4+

22Mdownloads
Lithostitched
1.21.1fabric

Lithostitched

Library mod with new configurability and compatibility enhancements for worldgen

21Mdownloads
GroovyModLoader (GML)
1.20.1forge

GroovyModLoader (GML)

A language provider for Forge Groovy mods.

21Mdownloads
Common Network
1.16.5forge

Common Network

Forge and Fabric Unified Networking Solution

21Mdownloads
Create: Dragons Plus
1.20.1fabric

Create: Dragons Plus

Provide convenient features to players and dev utilities for Create addon developers.

21Mdownloads
Rhino
1.21neoforge

Rhino

A fork of Mozilla's Rhino library, modified for use in mods

21Mdownloads
KubeJS
1.21neoforge

KubeJS

Edit recipes, add new custom items, script world events, all in JavaScript!

20Mdownloads
DefaultSettings
1.21.9neoforge

DefaultSettings

Keep your game's local settings in case of an update to your modpack

20Mdownloads
Spell Engine
1.21fabric

Spell Engine

🪄 Data driven magic library

20Mdownloads
Mysterious Mountain Lib
1.21.1neoforge

Mysterious Mountain Lib

a library for MMF-Group's mod

20Mdownloads
Controllable
1.20.1neoforge

Controllable

Play Minecraft Java Edition with a Controller / Gamepad

20Mdownloads
Advanced Fishing
1.21.11neoforge

Advanced Fishing

This mod overhauls fishing with 49 new fish, biome-based catches, lava fishing, new enchantments and curses, custom potions, early-game tools like the Chum Bucket, and fully reworked fishing mechanics.

20Mdownloads
Spell Power Attributes
1.21neoforge

Spell Power Attributes

🔮 Spell Power entity attributes with related status effects and enchantments

19Mdownloads
Sodium Options API
1.21.5fabric

Sodium Options API

Config API for adding Sodium options with a better categories menu

19Mdownloads
Alloy Forgery
1.21.10fabric

Alloy Forgery

Forge some alloys

19Mdownloads
Deimos Lib
1.21.8neoforge

Deimos Lib

Config and datagen library based on midnight lib

18Mdownloads
Elysium API
1.21.1neoforge

Elysium API

Elysium is a library mod with various utilities, built-in features and new data driven systems for both Mod-Developers and Modpack-Creators to utilize

18Mdownloads
More Axolotl Variants API
1.21.11fabric

More Axolotl Variants API

Axolotl Variants Extender API!

18Mdownloads
AzureLib Armor
1.21.1neoforge

AzureLib Armor

A striped down Azurelib just for Armor!

18Mdownloads
Advanced Netherite (Fabric)
1.21.11fabric

Advanced Netherite (Fabric)

A configurable, vanilla friendly, open-source mod that adds in more tiers of Netherite!

18Mdownloads
Tesseract API (NeoForge)
1.21.1neoforge

Tesseract API (NeoForge)

Another library mod for mod developers

17Mdownloads
Sophisticated Core
1.21.11neoforge

Sophisticated Core

Library mod for Sophisticated mods

17Mdownloads
EMI Enchanting
1.21fabric

EMI Enchanting

EMI Plugin that gives basic enchantment information; valid items, exlcusions, etc.

17Mdownloads
Cryonic Config
1.21neoforge

Cryonic Config

Chill Minimal Config API

17Mdownloads
ChemLib
1.21.5neoforge

ChemLib

Items for all periodic elements and many chemical compounds

17Mdownloads
WTHIT
1.21.11fabric

WTHIT

What the hell is that? A fork of Hwyla which is a fork of Waila.

16Mdownloads