Forge Mods for Minecraft 1.21
Browse 841 free Forge mods for Minecraft 1.21 — popular picks include Tianshu Library, llama.jar, FuseBox.
Updated daily
Tianshu Library
A comprehensive local AI library integrating llama.cpp (JJML JNI), sherpa-onnx, and ONNX Runtime to power fully offline LLMs, speech recognition, and text-to-speech directly in-game.
llama.jar
Local AI inference in Minecraft based on llama.cpp
FuseBox
Library datapack and mod for easy datapack development. Includes working stopwatch, countdown and an complex events system. Could be required for a mod or datapack you want to use.
Silver's Ray Cast Library | RCL
Yet another Ray Cast library! with even more functions?
wa3kit
You can save and load your inventory
Contents Director
Runtime mod and file installer for Minecraft modpacks.
iammojogo's Uncrafting Mod
This mod is a mod that allows users to uncraft crafted items to gain back resources from items they don't need and don't want to throw away or burn.
Kit Manager
A Datapack that lets you save your inventory into a kit to then load it later down the line!
MMD OreSpawn Library (26.2, 1.21.1) – Customizable Spawning of Ores
MMD OreSpawn Library is a library mod that provides better control over the spawning of ores in Minecraft. How it works: Ore Spawn parses all of the .json files found in orespawn and adds ore generators to the game based on those files. The JSON structure looks like this: [ { "dimension": -1, "ores": [ […]
Immersive Furniture Mod (1.21.1, 1.20.1) – Custom In-Game Furniture Creator
Immersive Furniture Mod is a decoration mod that allows players to create and use custom furniture directly inside Minecraft. Instead of installing many different furniture mods, you can design your own objects or download ready-made furniture from the online library. The mod includes a large online library with thousands of community-made furniture pieces that can […]
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 […]
Haybale Mod (1.21.8, 1.20.1) – Registration, Networking, And Platform Services
Haybale Mod is a multiloader library mod designed to provide shared systems used across the author’s other Minecraft mods. Features: Designed specifically for multiloader mod development Annotation-based registration for entities, items, particles, and sounds Built-in packet system for networking Entity capability system support Platform-sided services such as server scheduling utilities Haybale Mod Download Links For […]
FokusAPI Mod (1.21.11, 1.20.1) – Library For ScadeBlock’s Mod
FokusAPI Mod is a library mod developed by the popular mod developer ScadeBlock. As a library mod, the mod by itself does not add any new content into the game, but it is required as a dependency mod by many of the mods developed by ScadeBlock. Many of the datapacks developed by ScadeBlock also require […]
Formations Mod (1.21.11, 1.20.1) – Structure Library
Formations Mod for Minecraft that adds additional features to datapacks for generating structures. It provides a powerful API for creating custom structures and allows for more flexibility and control over structure generation. Formation is a powerful tool for modders who want to create custom structures and biomes in Minecraft. It is also a great mod […]
TSFlareons Item Core Mod (1.21.8, 1.21.1) – Play Datapacks with Custom Items
TSFlareons Item Core Mod adds custom items that are required by certain datapacks. It acts as a core library because datapacks alone cannot add new items to the game. You will not find these items in survival mode unless you are also using the datapack they were made for. For example, this mod is necessary […]
Brandon's Core (1.21.1, 1.20.1) – Power Up Your Modded Game
Brandon's Core is the core mod that will be used by most of brandon3055's mods. It provides base ASM functionality and contains common classes. Features: Acts as a required library for other mods like Draconic Evolution to function. Contains a collection of common code and classes that other mods can share. Provides base classes for […]
iChun Util Mod (1.21.5, 1.20.1) – Run Mods Like Portal Gun
iChun Util Mod is a shared library required by a couple of iChun’s Mods. Example: iChun's Hats Mod, Portal Gun Mod, Sync Mod, The Doors Mod, Keygrip Mod, Attachable Grinder Mod, Hat Stand Mod, Gravity Gun Mod, Hat Stand Mod… Made for Minecraft 1.5 or later. Features: Acts as a required shared library for many […]
Datapackets Functions LIB Mod (1.21.10, 1.20.1) – Library Dependency Mod
Datapackets Functions LIB Mod is a library mod that is required to be installed by the player if any of the mods they use require it as a dependency. The mod provides developers with some useful functions and is compatible with all versions of Minecraft. The mod by itself does not introduce any new content […]
Lazr's Lib Mod (1.21.1, 1.20.1) – The Engine for Lazr's Mods
Lazr's Lib Mod provides the shared code and tools needed for other mods to work properly. It is a library mod, which means it doesn't add any new content to the game by itself. You only need to install this mod if another one requires it. Features: Includes tools for drawing custom screens. Offers utilities […]
Chunk Activity Tracker Mod (1.21.1, 1.20.1) – See Your Server's Hotspots
Chunk Activity Tracker Mod tracks player activity within each chunk of the world. It records details like how long players stay in an area and how many blocks they place. This mod is a library, meaning it works in the background to provide tools for other mod developers and doesn't add gameplay features on its […]
More Structure Processors Mod (1.21.1, 1.20.1) – Library For Mod/Datapack Developers
More Structure Processors Mod is a library mod that makes it easy for mod developers and datapack developers to work with structure processors. These are files that deal with structure generation in the game world. As a player, you only need to have this mod installed if another mod requires it as a dependency. Features: […]
Kriforfab Mod (1.21.8, 1.20.6) – Fabric API Features For Forge And NeoForge
When it comes to Minecraft modding a lot of developers prefer to use the Fabric mod loader, rather than Forge or NeoForge. This is mainly due to Fabric being a lot more convenient to work on. Fabric API is a library mod used as a dependency mod by a lot of mods made for the […]
CERBON's API Mod (1.21.8, 1.20.1) – The Key to Cerbon's Mods
CERBON's API Mod is a library mod for CERBON's Minecraft mods. It contains shared code between CERBON's mods and some other useful stuff. Features: Acts as a required library for a series of other mods. Contains shared code and other useful resources that other mods depend on. Ensures compatibility for certain mods on Minecraft versions […]
MoreVanillaLib Mod (1.21.1, 1.20.1) – Library for MelanX's Mods
MoreVanillaLib Mod is a library for MelanX's mods. It's used for these mods in 1.15.2+: MoreVanillaTools. VanillaHammers (Forge). VanillaExcavators (Forge). The mod contains: JEI plugin. Global config. Helpers. Tags. The config (default): MoreVanillaLib Mod Download Links For Minecraft 1.15.2 Forge version: Download from Server 2 For Minecraft 1.16.5 Forge version: Download from Server 2 For […]
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 […]
ObsidianUI Mod (1.21.5, 1.20.1) – Creating Better GUIs
ObsidianUI Mod is a technical library used by mod developers to simplify and speed up the creation of GUI interfaces in their mods, such as mod settings windows or similar UI elements. The mod itself does not change anything in the game and should only be installed when required by another mod. Loaded on demand: […]
TheDragonLib Mod (1.21.1, 1.20.1) – Library for TheDragonTeam's Mods
TheDragonLib Mod is a mod that provides utils essential and Functionality for most of the other TheDragonTeam's Mods, It is also a mod needed for some other mods as a core mod. Some mods require this library to run, for example: ArmorPlus, Mob Settings, Custom Crafting Tables, Environmental Grimoires, UsefulRecipes, and possibly some others. TheDragonLib […]
Tslat Effects Lib Mod (1.21.5, 1.20.1) – Advanced Effect Handling
Tslat Effects Lib Mod is a library mod that provides shared code and effect-handling systems for other mods, particularly those requiring advanced particle effects, visual rendering, and status effects. It’s designed as a backend dependency, not meant for standalone use, and is commonly used by mods in the Tslat ecosystem. Features: Adds support for custom […]
AzureLib Mod (1.21.1, 1.20.1) – Make Mods Move with Style
AzureLib Mod provides a powerful animation engine for other Minecraft mods. It is a branch of Geckolib 4.x, designed to help mod developers create complex animations. This library supports 3D keyframe animations, over 30 easing functions, and lets multiple animations run at the same time. It also includes features for sound, particle, and event-based keyframes. […]
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 […]
Hostile Neural Networks Mod (1.21.1, 1.20.1) – Create a Digital Mob Farm
Hostile Neural Networks lets you get mob drops without fighting. You can train data models of different mobs and then run simulations. These simulations create predictions that can be turned into a mob's loot. Features: Create Data Models by using a Data Model Framework on any target mob. Train your Data Models inside a Deep […]
U Team Core (1.21.1, 1.20.1) – Library for U-Team's Mods
U Team Core is Open-Source API and library for U-Team's mods. U Team Core Download Links For Minecraft 1.21.1, 1.21 Forge version: Download from Server 1 – Download from Server 2 NeoForge version: Download from Server 1 – Download from Server 2 Fabric version: Download from Server 1 – Download from Server 2 For Minecraft […]
ShetiPhianCore (1.21.1, 1.20.1) – The Core for Many New Mods
ShetiPhianCore is the core classes all ShetiPhian's mods use. It must be installed or ShetiPhian's mods will crash. Mods using this core: EnderTanks Illumine Miscellaneums MultiBeds MultiStorage PixelPowers 2 Platforms Terraqueous Features: Acts as a core library containing shared code for other mods. Prevents game crashes for mods that require it to run. Supports a […]
Unnamed Framework Mod (1.21.1) – Increases Performance and Removes Redundant Processes
Unnamed Framework Mod is a performance-focused framework that supports other mods and datapacks. It optimizes performance, removes redundancies, and improves compatibility between modules. Debugging capabilities are enhanced, making mod development and testing more efficient. Features: Increases performance and removes redundant processes. Enhances compatibility between supported modules. Improves debugging capabilities for streamlined development. Integrates universal features […]
VapourWare Mod (1.21.1, 1.20.1) – Library for VapourDrive's Mods
VapourWare Mod is a base mod created by VapourDrive. It serves as the foundation for several other mods and includes shared code for fuel-powered machines and a wrench. Features: Provides the logic and framework for fuel consumption, storage, and use in various machines. Adds a wrench that can be used to rotate blocks and disassemble […]
Knight Lib Mod (1.21.1, 1.20.1) – Expand Your Modding Toolkit
Knight Lib Mod is a code library that serves as a shared foundation for mods developed by its creator. This library mod introduces a key feature, the "Great Chalice" block, along with several utility functions that simplify adding common elements to custom mods. Features: Adds the "Great Chalice" block Provides utilities for mod development Designed […]