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Forge Mods for Minecraft 1.21

Browse 38 free Forge mods for Minecraft 1.21 — popular picks include Cupboard, Iceberg [Neo/Forge], ZeroCore 2.

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Cupboard
1.21.1neoforge

Cupboard

Cupboard provides code, frameworks, and utilities for minecraft mods

198Mdownloads
Iceberg [Neo/Forge]
1.21.11forge

Iceberg [Neo/Forge]

A modding library that contains new events, helpers, and utilities to make modder's lives easier.

161Mdownloads
ZeroCore 2
1.21.1neoforge

ZeroCore 2

Utility mod and multiblock API

103Mdownloads
InsaneLib
1.21.1neoforge

InsaneLib

A set of common classes and utilities used by Insane's mods

63Mdownloads
Roughly Enough Items Fabric/Forge/NeoForge (REI)
1.21.11neoforge

Roughly Enough Items Fabric/Forge/NeoForge (REI)

Clean and Customizable. An easy way to browse recipes. Alternative to JEI Just Enough Items.

57Mdownloads
Kotlin for Forge
1.20.6forge

Kotlin for Forge

Adds a Kotlin language loader and provides some optional utilities.

47Mdownloads
EMI
1.21.1neoforge

EMI

Featureful and accessible modern item and recipe viewer with JEI compatibility

46Mdownloads
Create: Dragons Plus
1.20.1fabric

Create: Dragons Plus

Provide convenient features to players and dev utilities for Create addon developers.

21Mdownloads
Elysium API
1.21.1neoforge

Elysium API

Elysium is a library mod with various utilities, built-in features and new data driven systems for both Mod-Developers and Modpack-Creators to utilize

18Mdownloads
Data Anchor
1.21.1neoforge

Data Anchor

Simple library mod with helpful data attaching and networking utilities including attaching data to entities, chunks, players, and worlds with low boilerplate code. Its own system built from the ground up for multiloader support.

15Mdownloads
ObsidianUI
1.21.5neoforge

ObsidianUI

SpruceUI unofficial forge port, is a Minecraft mod API which adds some GUI utilities.

12Mdownloads
Kube Utils
1.21.1neoforge

Kube Utils

Adds helper utilities and new features to KubeJS in a clean, concise and consistent API design

8.4Mdownloads
FDLib
1.20.1forge

FDLib

Collection of utilities for my mods

7.8Mdownloads
Cobblemon Counter
1.21.1neoforge

Cobblemon Counter

A utility mod that keeps track of Cobblemon wild KO/capture counts/streaks.

3.4Mdownloads
BBL Core
1.21.11neoforge

BBL Core

Various useful methods, utilities and helpers to make coding mods a bit better

1.7Mdownloads
Lazr's Lib
1.20.1forge

Lazr's Lib

A library containing many utilities for Lazr's Mods.

1.5Mdownloads
Lazy Utilities [Deprecated]
1.20.1forge

Lazy Utilities [Deprecated]

My little Toolbox for my mods

921kdownloads
CthuLib
1.20.1fabric

CthuLib

Core utility mod for Pixel Dream Studios modpacks

676kdownloads
Mebahel's API
1.20.1fabric

Mebahel's API

Mebahel’s API is a core dependency mod that provides shared systems, utilities, and gameplay frameworks used across the Mebahel mod ecosystem.

571kdownloads
Hud Compass
1.21.11neoforge

Hud Compass

Shows a compass at the top of the screen with waypoints

414kdownloads
AnCore Lib
1.20.6forge

AnCore Lib

AnCore is the essential library for Anchor Studios mods; offering utilities, custom GUI components and helper functions designed to enhance and support our modding projects.

405kdownloads
SL Library
1.20.1forge

SL Library

Adds various base utilities, synchronization help, policy, packet sending and data driven

403kdownloads
SLM: Epic Fight
1.20.1forge

SLM: Epic Fight

Add utilities to create passive skills, innate skills, and implement events in Skills for Epic Fight; model, registry & sync utilities.

366kdownloads
Void Lib
1.20.1forge

Void Lib

A lib that adds various utilities to mod development

237kdownloads
Modulation
1.21.1fabric

Modulation

A growing collection of quality-of-life tweaks, bug fixes, and cross-mod integrations for modpack creators!

234kdownloads
SolLib
1.21.1neoforge

SolLib

Lets mods shine by bringing a constellation of (mostly) data utilities.

224kdownloads
Just Utilities
1.21fabric

Just Utilities

A personal use Multiloader Library

185kdownloads
Ethecore
1.21.1neoforge

Ethecore

Adds an animation and model system, as well as other utilities.

72kdownloads
JourneyMap Waypoint Syncing (JMWS)
1.21.11fabric

JourneyMap Waypoint Syncing (JMWS)

This mod allows you to save waypoints on JourneyMap between multiple devices via the player/account UUID on the server

65kdownloads
Moonlight Core
1.20.1fabric

Moonlight Core

Moonlight Core is a layer abstraction of Minecraft mod loaders that is aimed to help with multi-loader mod development giving developers utilities for their mods.

16kdownloads
Mixin Helper
1.21.1neoforge

Mixin Helper

Utility mod for modpack developers that provides complete control over mixin behavior

5.1kdownloads
Café Core
1.21fabric

Café Core

Core library mod by Café Leblanć. Provides shared systems and utilities used by other mods from the same studio. Not standalone — required only as a dependency.

5.0kdownloads
TidyInv
1.20.1neoforge

TidyInv

Smart, fast, server-friendly inventory sorting with 7 modes, vertical sort, locked slots, profiles, chest presets, deposit/restock/dump/take buttons, in-game config GUI, and a public API. Works in your inventory and in any chest, barrel or shulker.

5.0kdownloads
Haybale Mod (1.21.8, 1.20.1) – Registration, Networking, And Platform Services
1.21.8fabric

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 […]

Lazr's Lib Mod (1.21.1, 1.20.1) – The Engine for Lazr's Mods
1.21.1forge

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 […]

BjornLib Mod (1.21.1, 1.20.1) – Core Library For Mob And Effects
1.21.1forge

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 […]