Minecraft Java 1.21 Mods
Browse 226 free mods for Minecraft Java 1.21 — popular picks include NxControl, Idle_Essentials, BluCooldown.
Updated daily
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.
Idle_Essentials
Just visual beautiful and mechanical comfortable essentials plugin like All in One
BluCooldown
Minecraft Paper/Folia plugin for adding fully configurable cooldowns to items
NxRestrict
NxRestrict is a powerful GUI-based Minecraft plugin that lets you easily enable or disable gameplay features globally or per player. It provides real-time control with no restarts, using a clean interface and instant enforcement.
NxFreeze
NxFreeze is a lightweight staff plugin that allows admins to freeze/unfreeze players using commands or an easy GUI.
Just Enough Mods: Calamitous
A dependency and content mod for the Just Enough Mods modpack.
Jobsy AutoDiscordLinker
JobsyDiscord is a lightweight Paper 1.21.x plugin that promotes your Discord server by sending automatic clickable chat broadcasts every 30 minutes. Players can click the message to instantly join your Discord, while Bedrock players (via Geyser/Floodgate)
Frostmage
Enhance Your Server's UI with an All-in-One Welcome & Tablist Framework
MapCycle
MapCycle makes managing rotating FFA maps simple by handling everything automatically while keeping full control available for administrators.
Spell Renderer
A fast, lightweight OpenGL wrapper for Minecraft, designed for rendering 2D objects with a clean, fluent API.
ephemeral_beacon by only5117 1.21x
Ephemeral Beacon is a rare block that cosmetically transforms neutral mobs within a 50 block radius over three in-game days. It creates permanent unique color variations like lavender sheep or gold striped pigs adding subtle magic to your world.
Aura Nexuses
Grant abilites based on large-scale constructions. Grant permissions dynamically.
Spell Utils Mod (1.21.1) – Library for Iron's Spells and Spellbooks Addons
Spell Utils Mod is a utility API designed to help developers create addons for Iron's Spells and Spellbooks Mod. It provides ready-to-use systems, classes, and tools that simplify the process of building custom spells, mobs, and bosses. This mod is mainly intended for mod developers, not regular players. Features: Mob & Boss Systems Custom spellcasting […]
Gamingbarns Gun Core Data Pack (1.21.11, 1.21.4) – Make Custom Firearms Easily
Gamingbarns Gun Core Data Pack is a tool that helps you create working guns in Minecraft without needing to know how to code. This datapack works like a library that other gun datapacks use to function properly. It makes adding guns to your world much easier and lets you customize gun stats like damage, reload time, […]
Epic Fight Avalon Mod (1.21.1, 1.20.1) – Unlock Custom Combat Animations
Epic Fight Avalon Mod expands the Epic Fight mod with a shared library of code. It holds common animation files together so other addons do not need to repeat the same work. This addon brings a fresh way to load frame-by-frame attack animations. It also packs in special tools to check for damage on multiple […]
CCore Mod (1.21.1, 1.20.1) – Library For Calemi Mods
CCore Mod is a library mod developed by the popular mod developer Calemi. The mod is a required dependency for certain mods – Nexus, Sledgehammers, Calemi's Economy, Calemi's Blueprints, & Kray's Magic Candles. Basically, these mods require CCore to be installed alongside them. As a player, you only need to install this mod if another […]
MagicLib Mod (1.21.10, 1.20.1) – To Beat Magic with Magic
MagicLib Mod is a library of versatile mod dependencies. Features: Compat API Supports multi-version compatibility for Minecraft 1.14+ on Fabric Loader. Provides compatibility APIs that abstract differences between Minecraft versions. Allows developers to reuse the same code across multiple MC versions, reducing the impact of Mojang’s internal changes. Dependency Check Includes a dependency checking system […]
GTBC's Spell Lib Mod (1.21.1, 1.20.1) – Centralized Spell Library
GTBC's Spell Lib Mod is a developer-focused library mod designed to streamline the creation of add-ons for Iron’s Spellbooks (ISS). Features: Provides a shared library to simplify the development of Iron’s Spellbooks add-ons. Eliminates the need to manually copy common ISS elements across different add-ons. Designed for mod developers to streamline spell and magic-related content […]
BjornLib Mod (1.21.1, 1.20.1) – Core Library For Mob And Effects
BjornLib Mod is a core library mod by FuriusMaximus, providing shared functionality for several of their mods, such as Dragon Mounts: More Dragons. It includes useful utilities and systems designed to streamline gameplay enhancements. Features: Ability Registry and custom ability events Particle Builder with magic-style glowing effects Lightning Builder for custom lightning visuals Leveling Builder […]
Ranged Weapon API Mod (1.21.1, 1.20.1) – Easy Creation of Bows & Crossbows
Ranged Weapon API Mod is an API for developers, based on the Fabric API, allowing easy creation of bows and crossbows. Loaded on demand: archers. Features: Creation of bows and crossbows Customizable weapon properties: damage, cooldown time, projectile flight speed (optional) Automatic registration of item model predicates (matches vanilla model predicates) Correct first-person and third-person […]
Spell Engine Mod (1.21.1, 1.20.1) – Data Driven Magic Library
Spell Engine Mod is a data driven magic library for Minecraft. This mod allows you to add spells to the game. It allows modders to create spells with different parameters, visual and sound effects. Features: Data Driven API: Spells can be assigned to any weapon (data driven) Spells deal damage based on Spell Power entity […]
Spell Power Attributes Mod (1.21.1, 1.20.1) – Library for Magical Abilities and Items
Spell Power Attributes Mod introduces new Entity Attributes for powering magical abilities, for the following magic types (schools): Arcane Fire Frost Healing Lightning Soul The library offers an API to query spell damage of an entity (based on its attributes, status effects, enchantments), and provides critical strike chance and multiplier. The design intent is to […]
Pam's HarvestCraft 2 – Food Core Mod (1.21.1, 1.20.1) – Library, API
Pam's HarvestCraft 2 – Food Core Mod allows you to create 120+ new foods for Minecraft using vanilla Minecraft ingredients. There are a few generic recipes at the bottom that will work with any fruit or vegetable in any correctly tagged mod. Features: TOOLS: All recipes require tools to be created. See the images below […]
GTBC's Spellbooks Mod (1.21.1) – More Spells, No Hassle
GTBC's Spellbooks Mod offers new unique spells without requiring any extra dependencies. This mod is a cut-down version of T.O Tweaks: Iron’s Spells Addo. Features: Adds new, unique spells that integrate seamlessly with Iron’s Spells 'n Spellbooks. Does not require any additional content mods, keeping it lightweight and dependency-free. Designed for players who prefer a […]
More RPG Library Mod (1.21.1, 1.20.1) – Library for the More RPG Classes
More RPG Library Mod is a library add-on for the Spell Engine Mod that expands its functionality with new content and Features. Features: On its own this Mod does not add spells, you need to install the class mods you want to add spells to your game This mod is used mainly as a library […]
Magic Bar Lib Mod (1.21.1, 1.20.1) – Library Mod To Add A Mana Bar
Magic Bar Lib Mod adds a highly customizable mana bar to the game. As the name suggests, this is a library mod. And for that reason, if you have installed this mod by itself, the mana bar will be of no real use, even though it still appears in your game. Any mod developer that […]
Nebula Mod (1.21.4, 1.20.1) – Library For Spells And Mana
Nebula Mod is a library mod that makes the process of adding spells and mana to the game a lot easier. The mod was developed by mod developer Dev0Louis to make the process of developing his mods easier, and therefore, many of his mods require Nebula as a library dependency mod. As a player, you […]
Elegantia Mod (1.21.1, 1.20.1) – Offers Tools For Working with GIF Images
Elegantia Mod is a versatile GUI library, especially useful in Araraki Leo mods. Currently in early development, this mod offers tools for working with GIF images, creating configurations with graphical interfaces, and rendering widgets with precise positioning. It also includes features for checking mod updates from Modrinth and advanced mathematical interface representations like Rect and […]
Runes Mod (1.21.1, 1.20.1) – Magical Element
Runes Mod is a small mod that adds an item type called runes. They are not very useful in the vanilla game on their own and are used as a library for other mods. Runes are usually made from cobblestone and some material related to the specific rune. Runes have shapeless recipes and can be […]
MiraiMC
A mirai bot for Minecraft servers.
QuickWhisper
A terrifying Minecraft horror mod made on NeoForge that adds procedural jumpscares, creepy ambient sounds, and an immersive custom glitch menu.
The Mad Wizard's Grimoire
Language file resourcepack library providing default translation strings for all of my datapacks
Gravitation
Easily change the world's gravity
Non-Lethal Falls
Fall damage exists, but doesn't kill you!
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
SpecialItem
added some special items to your minecraft