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Minecraft Java 1.21 Mods

Browse 3,577 free mods for Minecraft Java 1.21 — popular picks include DashLoader, MCPitanLib, RunicLib.

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DashLoader
1.21.4fabric

DashLoader

Launch at the speed at light.

5.2Mdownloads
MCPitanLib
1.21.11fabric

MCPitanLib

Pitan's Minecraft Mod Library (Architectury API)

5.1Mdownloads
RunicLib
1.20.1forge

RunicLib

RunicLib is a library for Azurune mods that adds MultiLoader utils and attributes/effects for utilization.

5.1Mdownloads
KubeJS Actually Additions
1.21.1neoforge

KubeJS Actually Additions

KubeJS integration for Actually Additions.

5.0Mdownloads
Sable
1.21.1fabric

Sable

A library mod for interactive moving block structures, or "sub-levels"

4.9Mdownloads
Guide-API Village and Pillage
1.21.1neoforge

Guide-API Village and Pillage

Guide-API fork for 1.14+ - Allows modders to easily create in-game documentation.

4.7Mdownloads
Lavender API
1.21.4fabric

Lavender API

A Guidebook API and alternative to Patchouli

4.7Mdownloads
Epic Fight - Invincible Lib
1.21.1neoforge

Epic Fight - Invincible Lib

A lib that help you create key combination combos and skill easier

4.7Mdownloads
ProjectE Integration
1.21.1neoforge

ProjectE Integration

Adds ProjectE conversions for recipes from other mods!

4.5Mdownloads
Ember's Underground Rooms | Ancient Dungeons
1.21.1neoforge

Ember's Underground Rooms | Ancient Dungeons

New underground dungeons with varied rooms, treasure and enemies! LIBRARY UPDATE!

4.4Mdownloads
Nirvana Library
1.21.8neoforge

Nirvana Library

A library used by all Clefal's mod!

4.4Mdownloads
FTB Pause Menu API
1.21.1neoforge

FTB Pause Menu API

Unified Pause Menu API for mods to customise the Pause Menu

4.3Mdownloads
Track API
1.21.1forge

Track API

A compatibility layer for train mods

4.2Mdownloads
Photon
1.21neoforge

Photon

Photon - Making mc effects as Unity

4.2Mdownloads
JasonConfig
1.21.1neoforge

JasonConfig

A replacement for Forge's Config system, powered by JSON

4.2Mdownloads
Satin API
1.21.4fabric

Satin API

A Fabric library to help modders with shader usage

4.1Mdownloads
Shield Lib
1.21.8neoforge

Shield Lib

Library for easily adding shields with banner support, enchantment support, events, & custom shapes without conflicts!

4.1Mdownloads
Gravestone mod - Graves
1.21.11neoforge

Gravestone mod - Graves

This mod adds gravestones to the game that spawn when a player, villager, dog, cat, or horse dies and store all of their items.

4.1Mdownloads
Epic Fight - Avalon
1.20.1forge

Epic Fight - Avalon

Simplify the animation registration process to align with animators' workflows.

4.1Mdownloads
Curios API Continuation [Frozen]
1.21.1neoforge

Curios API Continuation [Frozen]

A flexible and expandable accessory/equipment API for users and developers [Frozen]

4.0Mdownloads
ExtraLib
1.21.1neoforge

ExtraLib

Library for mods.

4.0Mdownloads
Json Things
1.21.1neoforge

Json Things

A mod that enables players to define blocks and items (and more!) via thingpacks, zip files similar to datapacks and resource packs

3.9Mdownloads
CERBON's API
1.21.6neoforge

CERBON's API

A library mod for CERBON's Minecraft Mods

3.8Mdownloads
Blue Power
1.21neoforge

Blue Power

Blue Power adds a variety of ways to manipulate and transport blocks and redstone signals to the game

3.7Mdownloads
MoreVanillaLib
1.21.1neoforge

MoreVanillaLib

A library mod for a few of my mods

3.7Mdownloads
Cobblemon Quests
1.21.1neoforge

Cobblemon Quests

Adds integration between the mod FTB quests and Cobblemon

3.6Mdownloads
Custom Portal API Reforged
1.21.10neoforge

Custom Portal API Reforged

Forge port of Fabrics Custom Portal API, updated for newer versions of MC.

3.5Mdownloads
JinxedLib
1.21.11neoforge

JinxedLib

JinxedLib is a library designed to provide tools for multi-loader and mod pack developers.

3.5Mdownloads
Stellar View
1.21.1fabric

Stellar View

Enjoy a Stellar View of the Sky

3.5Mdownloads
Berezka's library
1.20.1forge

Berezka's library

this mod allows to generate json files in code, adds custom structure type, custom structure placement type, provides overlap fix, some methods for my mods and loot-tables

3.5Mdownloads
ManyIdeas Core
1.21.1neoforge

ManyIdeas Core

Contains blocks, tools and items, that are needed in many of the Many Ideas Mods.

3.4Mdownloads
Cobblemon Counter
1.21.1neoforge

Cobblemon Counter

A utility mod that keeps track of Cobblemon wild KO/capture counts/streaks.

3.4Mdownloads
Fragmentum
1.21.1neoforge

Fragmentum

The lightweight framework for the Obscuria Collection cross-platform mods

3.3Mdownloads
Polymer
1.21.11fabric

Polymer

Library for creating better server side content!

3.3Mdownloads
Genshin Instruments
1.21neoforge

Genshin Instruments

A mod that adds Genshin Impact's set of instruments into Minecraft!

3.3Mdownloads
Faewulf's Lib
1.21.11fabric

Faewulf's Lib

A library mod that provides utility functions and methods commonly used across my (Faewulf) mods.

3.2Mdownloads