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Mods for Minecraft Java

Browse 9,201 free mods for Minecraft Java — popular picks include NavAPI, KLibrary, uxmLib.

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NavAPI
1.7spigot

NavAPI

NavAPI is an API & Library for some mods & mods which configures other mods.

12downloads
KLibrary
26.1spigot

KLibrary

A Library for Kaivian's Minecraft Plugins.

11downloads
uxmLib
1.21.11paper

uxmLib

Lightweight modular toolkit for Paper 1.21+ plugins: items, GUIs, commands, config, storage and more.

7downloads
PeachLib
1.21.10paper

PeachLib

Libary for Minecraft Paper API Plugins

6downloads
SwagTournaments
1.21spigot

SwagTournaments

Flexible tournament framework with YAML templates, 6 types, and a web editor.

5downloads
ByteLib
26.1paper

ByteLib

A library for creating Paper-native plugins, targeting the latest versions of Minecraft

5downloads
Tolker
1.20paper

Tolker

Tolker is an easy-to-use messaging library for Paper. It provides you an interface which allows you to easily compose me

3downloads
wmenus
26.1paper

wmenus

Easy-to-use, flexible GUI library with reusable components for building rich interfaces.

2downloads
Crafting Manipulator Mod (1.21.11, 1.20.1) – Require Specific Workstations
1.21.11

Crafting Manipulator Mod (1.21.11, 1.20.1) – Require Specific Workstations

Crafting Manipulator Mod changes how crafting results behave in Minecraft. It acts as a background library that helps other mods add special crafting conditions. For example, it can stop you from crafting an item if you do not stand next to a smithing table. This mod does not add any standalone items by itself and […]

MModding Library Mod (26.3, 26.1.2) – Play with Advanced Tech Addons

MModding Library Mod (26.3, 26.1.2) – Play with Advanced Tech Addons

MModding Library Mod provides backend tools and core code structures for supported projects. This mod does not add standalone items or blocks into standard survival gameplay on its own. Instead, it handles background operations such as block interactions, custom rendering, and world systems for other addons. Players install this mod as a required framework so […]

Percale 9minecraft Mod (26.3) – Load Your Favorite Mods Without Errors

Percale 9minecraft Mod (26.3) – Load Your Favorite Mods Without Errors

Percale 9minecraft Mod acts as a background helper for your game. It reads and writes data files so other mods can load properly. This library adds no blocks, items, or mobs of its own. You only need to add it to your folder when another mod, like Bountiful, lists it as a requirement. Features: Acts […]

BCLib 9minecraft Mod (26.3, 26.2) – Power Custom Nether and End Overhauls

BCLib 9minecraft Mod (26.3, 26.2) – Power Custom Nether and End Overhauls

BCLib 9minecraft Mod powers a popular series of dimension and nether overhaul mods. It works entirely behind the scenes to manage shared background systems like custom blocks, world data, and configuration files. You only need to install this library if another mod specifically asks for it, as it does not add any new items, blocks, […]

Code Chicken Lib 9minecraft Mod (26.3, 26.2) – The Hidden Core for Your Favorite Mods

Code Chicken Lib 9minecraft Mod (26.3, 26.2) – The Hidden Core for Your Favorite Mods

Code Chicken Lib 9minecraft Mod gives other popular mods the shared code they need to run. It does not add any new blocks, items, or creatures to the game on its own. Instead, it works quietly in the background to handle math, 3D models, and lighting. You only need to add this library when another […]

CB Multipart 9minecraft Mod (26.3, 26.2) – Fit Multiple Mod Parts Into One Block Space

CB Multipart 9minecraft Mod (26.3, 26.2) – Fit Multiple Mod Parts Into One Block Space

CB Multipart 9minecraft Mod lets multiple functional parts share a single block space in Minecraft. This core library acts as a base framework for other mods to place small pieces like cover plates, gadgets, wires, and machine parts together. It does not bring new items or blocks on its own. Instead, it works quietly in […]

SimpleCloud API Plugin Mod (26.2) – Link Minecraft Servers Into One Network

SimpleCloud API Plugin Mod (26.2) – Link Minecraft Servers Into One Network

SimpleCloud API Plugin Mod connects Minecraft servers directly to the SimpleCloud system. It fixes previous dependency troubles and gives developers direct access to cloud controller tools and player tools. The mod works on the server side across multiple server types without asking players to install anything on their own game client. Features: Runs on Spigot, […]

Minecraft Forge (26.3, 1.20.1) – Modding API and Library
1.20.1

Minecraft Forge (26.3, 1.20.1) – Modding API and Library

Minecraft Forge is a modding API (Application Programming Interface), which makes it easier to create mods, and also make sure mods are compatible with each other. It is the foundation of the majority of current mods of Minecraft. Developers can customise Mincecraft based on it. With Minecraft Forge, Minecraft is limitless. To do this, the […]

Kambrik 9minecraft Mod (26.3) – Run Kotlin Mods Without Game Lag

Kambrik 9minecraft Mod (26.3) – Run Kotlin Mods Without Game Lag

Kambrik 9minecraft Mod powers other mods written in the Kotlin programming language. It acts as a behind-the-scenes toolkit that shares common code so other mods can run properly. You only need to add this library to your game when another mod, like Bountiful, asks for it. It stays completely hidden and does not add any […]

9minecraftAPI Mod (26.3) – Run Multiplatform Mods on Any Loader

9minecraftAPI Mod (26.3) – Run Multiplatform Mods on Any Loader

9minecraftAPI Mod is a required library / API – it adds no blocks, items or gameplay of its own. Instead, it provides the shared code that many multiplatform mods are built on, so those mods can run on either major mod loader from a single codebase. If a mod on this site lists 9minecraftAPI (or […]

JackFredLib 9minecraft Mod (26.3) – Shared Library for JackFred Mods

JackFredLib 9minecraft Mod (26.3) – Shared Library for JackFred Mods

JackFredLib 9minecraft Mod provides shared code tools and background systems for compatible mods. It does not add new blocks, items, or standalone world elements on its own. Instead, this mod supplies the internal framework needed to run features like death markers and customized configs. Players install it alongside dependent mods to keep everything running without […]

KasugaLib Mod (1.20.1) – Power Custom Font Renders and Animated Block Models
1.20.1

KasugaLib Mod (1.20.1) – Power Custom Font Renders and Animated Block Models

KasugaLib Mod provides core technical tools and registration helpers for other Minecraft mods. It works in the background to help other mods register blocks, items, custom fonts, and animated models without extra setup. This mod does not add items directly into standard survival gameplay on its own, functioning as a required base library for compatible […]

SQLite JDBC Mod (1.20.1) – Store Mod Data Locally with Built-In Database Drivers
1.20.1

SQLite JDBC Mod (1.20.1) – Store Mod Data Locally with Built-In Database Drivers

SQLite JDBC Mod brings the official SQLite database driver directly into Minecraft. It acts as a shared library that lets other mods, such as Dynmap, connect to local database storage without extra setup. The universal file functions across Forge, Fabric, and Spigot environments without altering any of the underlying driver code. Features: Provides the official […]

Accelerated Recoiling Mod (1.21.11, 1.20.1) – Stop Server Tick Lag Around
1.21.11

Accelerated Recoiling Mod (1.21.11, 1.20.1) – Stop Server Tick Lag Around

Accelerated Recoiling Mod optimizes entity collision calculations to keep game servers running smoothly. It moves heavy collision math away from standard game loops to a fast native library, helping worlds maintain steady tick rates even when thousands of mobs gather in small areas. This mod helps prevent major slowdowns on busy multiplayer servers and large […]

MediaPlayer Mod (1.21.11, 1.20.1) – Watch Real Videos and Stream Music
1.21.11

MediaPlayer Mod (1.21.11, 1.20.1) – Watch Real Videos and Stream Music

MediaPlayer Mod brings media decoding tools to Minecraft using ffmpeg. This library mod allows the game to decode and display video files while playing companion or standalone audio tracks directly in your world. It includes hardware acceleration to keep playback smooth on Windows x64 systems. Features: Decodes both video and sound files inside Minecraft. Uses […]

Mantle 9minecraft Mod (26.3, 26.2) – The Core Engine for Tinkers' Construct

Mantle 9minecraft Mod (26.3, 26.2) – The Core Engine for Tinkers' Construct

Mantle 9minecraft Mod lays the shared foundation that Slime Knights mods like Tinkers' Construct are built on, bundling the common code, in-game guide books, fluid handling, and registration tools those mods rely on into one clean library. It runs nothing on its own screen – instead it quietly powers the features, recipes, and documentation of […]

PlayerAnimator 9minecraft Mod (26.3, 26.2) – Unlock Smooth Custom Player Animations

PlayerAnimator 9minecraft Mod (26.3, 26.2) – Unlock Smooth Custom Player Animations

PlayerAnimator 9minecraft Mod powers custom movements and emotes for your Minecraft character. It acts as a shared framework so other mods can change how you pose, fight, or dance. The mod processes animation files and runs them side-by-side without breaking. Features: Plays Custom Animations: It reads animation files made in Blockbench or Blender to move […]

Pv Addon Lavaplayer Lib Mod (26.2, 1.20.1) – Audio Backend Utility
1.20.1

Pv Addon Lavaplayer Lib Mod (26.2, 1.20.1) – Audio Backend Utility

Pv Addon Lavaplayer Lib Mod is a support mod that bundles a LavaPlayer fork library required by certain Plasmo Voice add-ons. This mod ensures that add-ons relying on LavaPlayer-based audio processing can run correctly within the Plasmo Voice ecosystem. Features: Provides a bundled LavaPlayer fork library. Required dependency for specific Plasmo Voice add-ons. No standalone […]

Irons Lib Mod (26.1.2, 1.20.1) – Adds Frameworks For Iron's Mods
1.20.1

Irons Lib Mod (26.1.2, 1.20.1) – Adds Frameworks For Iron's Mods

Irons Lib Mod gives code and tools for other mods made by Iron. It adds special blocks and frameworks to help those mods work. It also connects with Patreon so supporters get special things. Features: Transmog System: Adds a Transmog Table block and a way to change how your armor looks. Player Statues: Brings blocks […]

oumlib
1.21.10paper

oumlib

A tested and human-coded library for minecraft paper/folia and velocity plugin development with an example plugin.

Cobblemon Quests Reloaded Mod (1.21.1, 1.21) – Modern Fork Of Cobblemon Quests
1.21.1

Cobblemon Quests Reloaded Mod (1.21.1, 1.21) – Modern Fork Of Cobblemon Quests

Cobblemon Quests Reloaded Mod updates the Quests mod for modern Minecraft, while keeping the same purpose: giving quest pack creators the ability to build Cobblemon‑related quests directly inside FTB Quests. Features: Updated for modern Minecraft versions. Works with current FTB Quests framework. Adds new task types and triggers for quest creators. Does not add quests […]

CtLib Mod (1.20.4, 1.20.1) – Library for CrystalNeko's Mods
1.20.4

CtLib Mod (1.20.4, 1.20.1) – Library for CrystalNeko's Mods

CtLib Mod is a library for data storage and make things simple. It provides some simple APIs for storing data and other operations. You need run it in at least Java 11. Features: Mysql Sqlite Chat prefix Simple yaml editor Simple json editor Network API CtLib Mod Download Links For All Versions from Minecraft 1.13.2 […]

The Impossible Library Mod (1.21.1, 1.20.1) – Library for Computerizer's Mods
1.21.1

The Impossible Library Mod (1.21.1, 1.20.1) – Library for Computerizer's Mods

The Impossible Library Mod is a library mod that makes the impossible possible in Minecraft. Features: File creation and manipulation. Generic image rendering to the screen. Global nbt data storage and retrieval. Support for radial gui elements and some helper methods regarding that. Custom async tick events able set by millisecond. The Impossible Library Mod […]

Babric Loader (1.7.3) – Fabric for Very Old Minecraft Versions, Beta

Babric Loader (1.7.3) – Fabric for Very Old Minecraft Versions, Beta

Babric Loader is a fork of the Fabric mod loader for Minecraft Beta versions (very old, from around 2010-2011). It allows players to install modern mods (written with the Fabric API/loader) but run them on Minecraft Beta, which previously only supported the old ModLoader or Forge Retro. Installation Guide: Preparation Install a Minecraft launcher (official, […]

Legacy Fabric Installer (1.12.2, 1.8.9) – Backport Fabric API to Older Versions

Legacy Fabric Installer (1.12.2, 1.8.9) – Backport Fabric API to Older Versions

Legacy Fabric Installer is the core library for the most common hooks and inter compatibility measures utilized by mods using the Legacy Fabric toolchain. Legacy Fabric API is a project based on the Fabric Project. Its two main priorities are to keep parity with upstream and to support as many legacy versions as possible. It […]

Apoli Mod (1.21.1, 1.20.1) – A Data-Driven Entity Power Provider
1.21.1

Apoli Mod (1.21.1, 1.20.1) – A Data-Driven Entity Power Provider

Apoli Mod is a library mod for Minecraft that serves as the backbone for the Origins Mod. It provides the framework for creating and managing powers, conditions, and actions within the game. Essentially, it allows modders and players to customize their gameplay experience by adding unique abilities or traits to their characters. For example, with […]

ExperienceLib Mod (1.21.1) – A Developer-Friendly XP Handling Library
1.21.1

ExperienceLib Mod (1.21.1) – A Developer-Friendly XP Handling Library

ExperienceLib Mod is designed to simplify handling players and block experience interactions in Minecraft. Requires: NeoForge Installer ExperienceLib Mod Download Links For Minecraft 1.21.1, 1.21 NeoForge Version: Download from Server 1 – Download from Server 2

Atlantis API Mod (1.20.2, 1.16.5) – Library for Waterdude's Mods
1.20.2

Atlantis API Mod (1.20.2, 1.16.5) – Library for Waterdude's Mods

Atlantis API Mod is a Forge-based API for chest interfaces, configuration, database storage, commands, Mojang API querying, and more, as well as tools to introspect on everything accessing these API elements. Features: AtlantisUI, an object oriented and functional style chest GUI API with pagination support. AtlantisConfig, a file system manager and database manager all-in-one solution, […]