Home›Java›Mods

Mods for Minecraft Java

Browse 51 free mods for Minecraft Java — popular picks include CB Multipart, Forge Multi Part, Cosmos Library.

Step by step: How to install Minecraft Java mods & modpacks

Updated daily

FiltersLibrary×Space×Clear all
CB Multipart
1.20.1forge

CB Multipart

An opensource library for having multiple things in the one block space

72Mdownloads
Forge Multi Part
forge

Forge Multi Part

an opensource library for having multiple things in the one block space.

7.6Mdownloads
Cosmos Library
1.21.1neoforge

Cosmos Library

Main required library for all TheCosmicNebula_ mods.

1.3Mdownloads
CosmicLib
forge

CosmicLib

Shared library for CosmicDan's Minecraft mods

1.1Mdownloads
Advanced Rocketry Tweaker (AR Tweaker)

Advanced Rocketry Tweaker (AR Tweaker)

Adds CraftTweaker support to Advanced Rocketry

613kdownloads
Dual Hotbar
forge

Dual Hotbar

Double your hotbar space

404kdownloads
Advanced Tweakery
forge

Advanced Tweakery

CraftTweaker support for new Advanced Rocketry

216kdownloads
Advanced Rocketry Tweaker (ARTweaker) Updated
forge

Advanced Rocketry Tweaker (ARTweaker) Updated

An addon for Advanced Rocketry that allows recipe modification via CraftTweaker scripts

27kdownloads
MatterLink
fabric

MatterLink

Simple bridge between Minecraft, Mattermost, IRC, XMPP, Gitter, Slack, Discord, Telegram, Rocket.Chat, Hipchat(via xmpp), Matrix and Steam.

20kdownloads
Bundle Weight, There's More!
1.21.11fabric

Bundle Weight, There's More!

Adds an item component for controlling the weight of an item in a bundle (how much space it takes up)

15kdownloads
Astromine: Core (No Longer Used)
1.16.5fabric

Astromine: Core (No Longer Used)

The API module of a space-themed technological modification with exploration, weapons and progression in mind, adding our APIs and libraries.

12kdownloads
Exposure: Space
1.21.1fabric

Exposure: Space

Astrophotography expansion for Exposure. Discover 200 real celestial objects and build your own space catalog.

12kdownloads
HammerMultipart
1.21neoforge

HammerMultipart

Library to place multiple things in one block space.

8.3kdownloads
Neroland Core
forge

Neroland Core

The shared foundation library for the Neroland sci-fi mod ecosystem — required by Nerospace and every other Nero mod.

5.1kdownloads
RocketPlaceholders
1.7.2

RocketPlaceholders

Create custom placeholders for PlaceholderAPI with a lot of custom conditions.

4.5kdownloads
DynamicDimension AR Edition
1.21.1neoforge

DynamicDimension AR Edition

Library mod allows dynamic level creation, finetuned for advanced rocketry

4.1kdownloads
AudioLayer
1.21.1neoforge

AudioLayer

Load your own MP3 files from a local folder and play them in-game under the `audiolayer` namespace. It also includes built-in KubeJS support for client-side scripting, plus ready-to-use examples for modpack and gameplay integration.

942downloads
Color Legacy Wood Planks
1.20.1forge

Color Legacy Wood Planks

A Library mod for an upcoming Liminal Spaces dimension mod, this is a required dependancy but can be used by itself.

669downloads
CelestialLib
1.18.2forge

CelestialLib

A library mod for space exploration mods, like Celestial Exploration

619downloads
Client Base
26.1fabric

Client Base

Bringing your pause menu to physical space!

576downloads
Planet - Border teleport
1.21.1neoforge

Planet - Border teleport

Border-teleport mod: teleports entities crossing world borders (±326) to opposite side. Perfect for 1:326 Earth maps. Open-source (remix allowed, but must keep code open).

161downloads
TagLib
1.21.4

TagLib

Library for Tags via NamespacedKeys

144downloads
KubeX
1.21.1neoforge

KubeX

Development toolkit for KubeJS with dedicated workspaces, Rhino compatibility and source-level debugging.

127downloads
LibVulpes-TFRU
1.7.10forge

LibVulpes-TFRU

A forked ver of Libvulpes for TFRU, contains necessary modificaions for AdvancedRocketry-TFRU to functions properly

100downloads
Shader ID Dual-Patcher
1.18.2fabric

Shader ID Dual-Patcher

Patches the shader IDs with custom namespaces that are already modified twice.

72downloads
Space Moderation System
1.21

Space Moderation System

Take full control over your server's moderation with a single, feature-packed plugin. SpaceModeratorSystem provides a complete admin toolkit — reports, punishments, cheat-checks, spectating, staff chat, a gorgeous themed admin panel, and more.

16downloads
Vivid Trinket Core Mod (26.2, 1.20.1) – Wear Rings and Charms in Extra
1.20.1forge

Vivid Trinket Core Mod (26.2, 1.20.1) – Wear Rings and Charms in Extra

Vivid Trinket Core Mod adds a lightweight accessory framework to your game. It gives you extra inventory space specifically meant for wearable trinkets like rings, charms, and special equipment. The mod lets other mods add their own wearable items without cluttering your main inventory slots. You can also customize your screen layout to place extra […]

SnAssets Library – General Mod (26.2, 1.20.1) – Add Crisp Action Audio
1.20.1fabric

SnAssets Library – General Mod (26.2, 1.20.1) – Add Crisp Action Audio

SnAssets Library – General Mod brings a collection of shared sound effects, textures, and particle sprites into Minecraft. This mod operates under a single namespace so other projects can call high-quality effects without bundling duplicate files. It supplies over one thousand audio clips ranging from firearms and rockets to rain and car doors. The library […]

Boundless Aspect Mantle Mod (1.20.1) – Wield Godly Powers Across Seven Cosmic
1.20.1forge

Boundless Aspect Mantle Mod (1.20.1) – Wield Godly Powers Across Seven Cosmic

Boundless Aspect Mantle Mod introduces seven cosmic seats that grant godly powers, individual dimensions, and essential world duties. Only one player can hold each seat at a time, taking on the mantle of Destiny, Death, Dream, Destruction, Desire, Despair, or Delirium. Each seat requires ongoing care to maintain, as ignoring your duties causes negative world […]

Satako Library (1.21.1, 1.20.1) – UI System, Various Functions
1.21.1neoforge

Satako Library (1.21.1, 1.20.1) – UI System, Various Functions

Satako Library is a library for Forge modding. It contains various useful things, UI system and various functions. It also adds 3 commands to the game: give2, summon2 , fill2 which let you specify namespace and path of the arguments separately. Features: Minecraft-related constants, including colors and their codes. Custom user interface components (button, switch-button, […]

CB Multipart Mod (1.21.1, 1.20.1) – Combine Parts in One Block
1.21.1neoforge

CB Multipart Mod (1.21.1, 1.20.1) – Combine Parts in One Block

CB Multipart Mod (formely known as Forge Multipart) is an opensource library for having multiple things in one block space. Features: Allows multiple modded parts, like cables or panels, to fit inside one block. Acts as a core library that other mods depend on to add multipart blocks. Lets you combine different small items from […]

Gaming Deco Mod (1.20.1, 1.19.2) – Decorate a Gaming Setup Room
1.20.1forge

Gaming Deco Mod (1.20.1, 1.19.2) – Decorate a Gaming Setup Room

Gaming Deco Mod adds computers, monitors and many wide blocks related to gaming: Monitors, PCs, PlayTics Stations and much more… Features: Adds items like computers, monitors, keyboards, and gaming consoles (e.g., PlayTics Stations) to decorate your spaces. Includes RGB-themed blocks and accessories for that ultimate gamer vibe. Screenshots: Requires: Minecraft Forge or Fabric API Gaming […]

Cosmos Library Mod (1.21.1, 1.20.1) – Dependency for The Cosmos Mod Series
1.21.1neoforge

Cosmos Library Mod (1.21.1, 1.20.1) – Dependency for The Cosmos Mod Series

Cosmos Library Mod is a collection of helper functions designed to make creating Minecraft mods quicker. It doesn't add any new features to the game itself. Instead, it serves as a base for other mods, allowing developers to avoid duplicating common code. This mod is part of The Cosmos Series by TheCosmicNebula and is required […]

ARLib Mod (1.21.1, 1.12.2) – Library For Advanced Rocketry Reworked Mod
1.21.1neoforge

ARLib Mod (1.21.1, 1.12.2) – Library For Advanced Rocketry Reworked Mod

ARLib Mod is a core library mod designed to support and streamline the functionality of mods in the Advanced Rocketry Reworked ecosystem. It provides essential tools and shared resources that enable integration and performance optimization for dependent mods. Features: Core Functionality: Supplies foundational code and systems required for Advanced Rocketry Reworked and its related mods. […]

LibVulpes (1.16.5, 1.12.2) – Library for zmaster587's Mods
1.16.5forge

LibVulpes (1.16.5, 1.12.2) – Library for zmaster587's Mods

LibVulpes is a small library containing functions and classes common to zmaster587's mods. Currently required to run the following mod: Advanced Rocketry. LibVulpes Download Links For Minecraft 1.7.10 Download from Server 1 For Minecraft 1.10.2 Download from Server 1 For Minecraft 1.11.2 Download from Server 1 For Minecraft 1.16.5 Download from Server 1 For Minecraft […]

Advanced Rocketry Tweaker Mod (1.12.2) – Compatibility, Addon

Advanced Rocketry Tweaker Mod (1.12.2) – Compatibility, Addon

Advanced Rocketry Tweaker Mod is a way of working with Advanced Rocketry recipes with Craft Tweaker. Sample script: // Chemical Reactor //mods.advancedrocketry.ChemicalReactor.clear(); mods.advancedrocketry.ChemicalReactor.removeRecipe(<liquid:rocketfuel>); mods.advancedrocketry.ChemicalReactor.addRecipe(<liquid:rocketfuel>*1000, 80, 100, <liquid:oxygen>*500, <liquid:hydrogen>*500); //mods.advancedrocketry.ChemicalReactor.addRecipe(<minecraft:obsidian>*1, 80, 100, <liquid:lava>*1000, <liquid:wat