Neoforge Mods for Minecraft 1.21
Browse 1,532 free Neoforge mods for Minecraft 1.21 — popular picks include Sandbox Cutscenes, Packdev Toolkit, Create:Custom Train Door.
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Sandbox Cutscenes
A library mod to make cutscenes for your mods, maps or modpacks
Packdev Toolkit
A collection of developer tools for building modpacks and datapacks. Pull textures/models out of resource packs, dump lang entries, search datapacks, and copy item IDs: all without leaving the game!
Create:Custom Train Door
Interactive CR400BF and CRH2A sliding train doors for Create on Minecraft 1.21.1, with ZIP-based custom textures, animations, sounds, and recipes.
E-lib
The local library for Forge modifications
Slayer Quests
Serverside mod that allows Nitwits to assign OSRS slayer style quests, also works as a library for adding quest functionality to your own mobs
Rock's lib
Library for roooksasjiu's mods
Open Parties and Claims Chunk Shop
Addon for OPAC open parties and claims for chunk trading and buying additional bonus chunks
qLibs
Personal library for Minecraft 1.21.1 modding. Fabric + NeoForge via Architectury. Probably needed for most mods I release. Open source, free to use. Hope it's helpful.
FlansKnowledgeLib
A Library Mod For My Mods
Player Abilities
Adds an extensive and customizable ability framework to grant players active, passive, and triggered abilities.
T0PK4_lib
This is a next-generation bugfix mod required for ModderEFGS's and T0PK4's mods to work.
AI Crafter
Minecraft AI Assistant brings the power of Google Gemini AI directly into your Minecraft world! Get instant help, answers, and even execute commands through natural language all powered by cutting-edge AI technology.
InvItemMark
Mark and display items in containers or your inventory to other players.
Easy Bee
A completly new way to trasport bees with extra tweaks
ServUI
A user-interface based library useful for creating front-end UIs for existing game screens on both NeoForge and Fabric
SOLEA API
SoleaAPI is a utility mod that combines homes, warps, TPA, teams, moderation, and combat-log tools into one configurable package with dynamic prefix support and EN/FR localization.
CompatLink - Epic Fight Weapons Compat
Give ANY modded weapon Epic Fight movesets — no coding, just JSON.
DataTip
JSON-driven custom item tooltips via resource packs. Multi-language, rich text, NBT/condition matching, shift-protected display. No coding — just JSON.
Fiw Custom Items
A data-driven custom items framework for Fabric or NeoForge. Define NBT, Attributes, configurable abilities, mechanics, curses, upgrades and more entirely through JSON no coding, no restarts.
Cobblemon: Hatrix Edits
A collection of cobblemon edits + breeding alternative
Simple Client Base
This library mod added a module management system for Minecraft.
Pranks A Lot
Pranks A Lot Is A Mod Where You Can Prank Your Friends With The Ultimate Trolls And Traps.
Capix!
A small API mod that allows Mod Developers to add capes to their mods
HeartDev
API that allows developers to easly access the health bar rendering system
Idle Generators
Place a generator and let it work, even offline. Craftable block-generators that produce resources passively over real time, with a live HUD and full Cloth Config support.
The Flattening
Simple vanilla-client-friendly mod to add anvil-flattening recipes via datapack.
better mob : jungle expansion
Better Mob: Jungle Expansion transforms Minecraft jungles with animated creatures, dangerous predators, immersive wildlife, GeckoLib animations, tropical atmosphere, rare mobs, jungle structures, and realistic exploration adventures.
GK1H Tags
Library with many tag-related changes made by GK1H.
ActiveEnchantmentsLib
A small lib that allows your enchantments to apply in the player's inventory and provides few utilities
Mansioneer
Adds biome-specific variants for Woodland Mansions; easily expandable with data packs!
Marrow
arrow-kt libraries bundled for Minecraft
QDC CORE 4.5
5th Version of the QDC Quantum Dis-Assembly Craft mod. Focusing on QOL Usability and other Mods Compatibility.
VRRW animation - OBJ ANIM
Exchange Items, blocks, Steves, entitys to Animated OBJ
Easy Freezing
A mod that allows you to Freeze Time around you at will! Try with multiplayer and things get confusing fast!
BRNTalk
A simple IM-style dialogue / talk UI mod for Minecraft
Minecraft Jedis (Redis Driver)
Up-to-date Jedis Redis client wrapped as a universal Forge/Fabric/Bukkit library for plugins like Grim.