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Minecraft Java 1.21 Mods

Browse 91 free mods for Minecraft Java 1.21 — popular picks include Void Pressure, Giant Attribute Tweak, twinkle popo mod.

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Void Pressure
1.21.1neoforge

Void Pressure

A flexible NeoForge framework for modpacks, providing a global pressure system to trigger fully configurable events.

84downloads
Giant Attribute Tweak
1.21

Giant Attribute Tweak

Changes the Giant Mob attribute to make it compatible with mods that adds IA

74downloads
twinkle popo mod
1.21.4neoforge

twinkle popo mod

it adds twinkle popo realistic pikachu and realistic hellokity

63downloads
Adventurers' Guild
1.21.1neoforge

Adventurers' Guild

This mod adds an adventurer’s guild! You can customize the tasks yourself (even items from other mobs).

62downloads
LiveJava
1.20

LiveJava

a VS Code-powered Web IDE that lets you build multi-class, hot-swappable native Java plugins instantly with zero reloads and automatic dependency injection.

54downloads
NxControl
1.21

NxControl

NxControl is an advanced staff plugin that lets OP players control players or mobs using simple keybinds, with GUI, bossbars, and freeze system built-in. It’s lightweight, powerful, and perfect for moderation, trolling, or cinematic gameplay.

43downloads
RTN's Economy Library
1.21.1neoforge

RTN's Economy Library

Server-side economy library with rewards for killing mobs, kill combos, top lists and a developer API. Vault-style economy for mods in Minecraft.

38downloads
RPG Dialogue
1.21.1neoforge

RPG Dialogue

The definitive dialogue system

37downloads
Two-Dimensional Foil
1.21.4fabric

Two-Dimensional Foil

A mod that adds a two-dimensional foil weapon from The Three-Body Problem. Drop it to collapse blocks and creatures into an irreversible, mirror-like 2D plane within a configurable radius. Requires Fabric API.

35downloads
Pixel Combat
1.21.11

Pixel Combat

Pixel Combat is a professional, zero-dependency PvP combat plugin built for competitive Paper 1.21 servers.

30downloads
RPG Errands
1.21.1neoforge

RPG Errands

Villagers who want something

25downloads
Chrysalis Mod (1.21.4, 1.21.1) – A Framework to Customize Game Mechanics
1.21.4

Chrysalis Mod (1.21.4, 1.21.1) – A Framework to Customize Game Mechanics

Chrysalis Mod is a library that other mods need to work correctly. You usually only need to install it when another mod lists it as a requirement. This mod provides a shared set of tools and features, like systems for camera shakes, custom music in structures, and a way to pick up mobs in buckets. […]

Q
1.21.1neoforge

QuickWhisper

A terrifying Minecraft horror mod made on NeoForge that adds procedural jumpscares, creepy ambient sounds, and an immersive custom glitch menu.

630downloads
E
1.21.1neoforge

ExtraHitboxes

Add extra hitboxes from geckolib and blockbench

592downloads
G
1.21.6

Gravitation

Easily change the world's gravity

317downloads
D
1.21

Dolphin's SpearSmp plugin

This plugin is a remake of Dolphin's SpearSmp plugin.

142downloads
HazentouveLib Mod (1.21.1) – Cast Multi-School Spells with Ascended Armor
1.21.1

HazentouveLib Mod (1.21.1) – Cast Multi-School Spells with Ascended Armor

HazentouveLib Mod provides shared magic systems, spell schools, and equipment classes for addon mods. It acts as a core base that adds shared templates for spellcasting mobs, multi-school armor sets, and magical weapons. Other addons rely on this framework to run smoothly and share spell mechanics across different modded worlds. Features: Includes three core spell […]

Databank Mod (1.21.11, 1.21.1) – Add Custom Animations and Giant Multiblock
1.21.11

Databank Mod (1.21.11, 1.21.1) – Add Custom Animations and Giant Multiblock

Databank Mod provides specialized rendering tools, custom model setups, and sound systems for modpacks and custom projects. It acts as a core library built to handle visual effects, multiblock mechanics, and massive world structures. Features: Loads custom post-processing shaders directly into the game. Lets creators add animated models for blocks, items, and mobs with mesh […]

LegendRelicLib Mod (1.21.1, 1.20.1) – Power Custom Slashblade Combos
1.21.1

LegendRelicLib Mod (1.21.1, 1.20.1) – Power Custom Slashblade Combos

LegendRelicLib Mod supplies shared tools and reusable code for other mods. It packs in systems for slashblade mechanics, tag setups, and delay timing controls to cut out repetitive background steps. Other mods rely on this library to run their custom weapon actions and timing routines properly in your game. Features: Provides built-in systems for custom […]