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Minecraft Java 1.21 Mods

Browse 759 free mods for Minecraft Java 1.21 — popular picks include Quest Giver, Mechanomania Core Mod (1.21.1) – Library for Mechanomania Modpack, Chrysalis Mod (1.21.4, 1.21.1) – A Framework to Customize Game Mechanics.

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Quest Giver
1.21neoforge

Quest Giver

Quest Giver provides the option for adding a data-driven quest system for modders and modpack makers.

1downloads
Mechanomania Core Mod (1.21.1) – Library for Mechanomania Modpack
1.21.1neoforge

Mechanomania Core Mod (1.21.1) – Library for Mechanomania Modpack

Mechanomania Core Mod is the core mod for Mechanomania modpack. It manages internal features and provides improvements that make the modpack run more smoothly and consistently. Features: Mods compat Mod tweaks Vanillia Tweaks Optimizations New Recipe types New advancements New items Mechanomania Core Mod Download Links For Minecraft 1.21.1, 1.21 NeoForge version: Download from Server […]

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

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. […]

Ghasts Update Mod (1.21.4, 1.20.1) – Happy Ghosts And More
1.21.4neoforge

Ghasts Update Mod (1.21.4, 1.20.1) – Happy Ghosts And More

Ghasts Update Mod is a mod inspired by the announcement at Minecraft Live March 2025, bringing new features centered around ghasts, including Dried Ghast, Ghastling, and Happy Ghast. Requires Geckolib for versions prior to 1.0.3, and allows players to experience unique mechanics such as raising Ghastling, riding Happy Ghast, and adjusting undrying speed through game […]

Better Bookshelf Resource Pack (1.21.1, 1.20.1) – Texture Pack
1.21.1

Better Bookshelf Resource Pack (1.21.1, 1.20.1) – Texture Pack

Better Bookshelf Resource Pack refreshes Minecraft’s library décor by introducing several stylish bookshelf variations. It adds five new textures to standard and chiseled bookshelves, offering more visual variety and breaking the monotony of identical bookshelves. Perfect for builders and readers alike, this pack subtly enhances immersion and library aesthetics without altering gameplay mechanics or performance. […]

Mechanicals Lib Mod (1.21.1) – Library for Oierbravo's Mods
1.21.1neoforge

Mechanicals Lib Mod (1.21.1) – Library for Oierbravo's Mods

Mechanicals Lib Mod is a library designed for modding, primarily supporting Create addons. It provides essential tools and dependencies for mod developers working within the Create ecosystem. Mechanicals Lib Mod Download Links For Minecraft 1.21.1, 1.21 NeoForge version: Download from Server 1 – Download from Server 2

Radical Cobblemon Trainers API Mod (1.21.1) – Trainer Management System
1.21.1fabric

Radical Cobblemon Trainers API Mod (1.21.1) – Trainer Management System

Radical Cobblemon Trainers API Mod serves as the foundational framework for the Radical Cobblemon Trainers mod and replaces the now-discontinued CobblemonTrainers dependency for Minecraft 1.21 and above. This mod is created to support several features, including trainer management, custom battle mechanics, and advanced AI behavior. Features: Trainer management system with entity association (trainer registry). Support […]

Momentariy Modder' Applications Mod (1.21.1, 1.20.1) – The Heartbeat Of Momentariy Modding
1.21.1neoforge

Momentariy Modder' Applications Mod (1.21.1, 1.20.1) – The Heartbeat Of Momentariy Modding

Momentariy Modder' Applications Mod stands as the foundational core for the suite of Momentariy mods. This essential mod serves as the backbone, providing the necessary framework and functionalities to support the entire Momentariy series. As the central component, it likely lays the groundwork for shared features, mechanics, and interactions that are common across all Momentariy […]

S
1.19.4

SealLib

A library for all of ISeal's plugins!

70kdownloads
C
1.21fabric

Cutscene API

A mod for making cutscenes

7.3kdownloads
V
1.13

Version Detector

An API for datapacks to detect your Minecraft Version

3.7kdownloads
A
1.21

Andrew's Datapack Utils

Useful utilities for datapacks, such as a calculator and allowing player data modification, and more.

2.1kdownloads
D
1.21.6fabric

Disable Click Event Warning

Disables the annoying pop-up added in 25w20a when you just want to click a button that runs an operator/invalid command

1.7kdownloads
L
1.21.8fabric

Lightning Vector & Bounding Box Visualizations

Minecraft Debug Mod that adds commands to render boxes and vectors.

1.1kdownloads
A
1.12.2fabric

Android Audio Shim

Enables Simple Voice Chat microphone and speaker on Android (arm64)

939downloads
I
1.21.1neoforge

Immersive Portals Compat Patches

Compatibility patches for Immersive Portals.

801downloads
X
1.7.2

XD's Utils

XD's Utils is a utility plugin that provides backups, a web interface, and more!

687downloads
E
1.21.1neoforge

ExtraHitboxes

Add extra hitboxes from geckolib and blockbench

592downloads
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.

547downloads
P
1.21fabric

Predicator

Empowers predicates to allow administrators to control their players' capabilities

332downloads
G
1.21.6

Gravitation

Easily change the world's gravity

286downloads
S
1.21.4fabric

Seva ya Utils

A utility mod for Seva ya Season 6, includes the server shop, milestones and custom currency

222downloads
O
1.21.1neoforge

open-hands-lib

Open Hands Lib is a library for Minecraft. Each hand has its own hit cooldown, and the damage and tool are passed through the hand that your mod chooses; the same can be enabled for breaking blocks

206downloads
A
1.21.1neoforge

AgriCraft Create Compat

Adds harvester support for AgriCraft crops and integrates Create automation with AgriCraft's crop progression and weed mechanics

203downloads
R
1.21.1neoforge

RevelationaryDimensions

A simple addon to Revelationary which adds support for locking dimensions.

196downloads
D
1.21.1fabric

Decrees of the Six

A governance and economy framework: councils of six, decrees, reputation, and player-driven law.

112downloads
P
1.21neoforge

PaleoLib

A simple mod to provide the basis for Paleontology in Minecraft.

102downloads
D
1.21

Dolphin's SpearSmp plugin

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

97downloads
G
1.13

GUI Command Blocker

GUICommandBlocker Stop players from using commands while they have GUI open! (Specially to prevent mod like ui utilis to sent commands in gui)

70downloads
N
1.21

NanoUtils

A library for making spigot plugins feel more like fully fledged mods

69downloads
F
1.21.1neoforge

FrontCore Cosmetics&Crates

A cosmetics add-on for FrontCore adding gun’s skins items and more

62downloads
C
1.21.4

Custom Content Api

An API to create custom content for servers.

60downloads
C
1.21

CatItems

CatItems is a plugin for creating custom items right in the game. With it, you can add attributes, enchantments, hide prompts, give permanent effects, create abilities on Shift, and build .schem schematics on right-click...

52downloads
A
1.21.8

Air Jump Enchant

Add a Air Jump enchantement, the level describe the number of air jump

45downloads
C
1.21.4

Custom Status Effects

Welcome to the Custom Status Effects Datapack This is an easy to use and powerful custom status effect

40downloads
E
1.21.8fabric

Exploding world

Every single block you break will explode. Theres a tnt pickaxe that will explode even more. subscribe to my yt! https://www.youtube.com/@krexonex

39downloads