Neoforge Mods for Minecraft 1.21
Browse 165 free Neoforge mods for Minecraft 1.21 — popular picks include Geckolib, Advanced Fishing, AzureLib.
Updated daily
Geckolib
A 3D animation library for entities, blocks, items, armor, and more!
Advanced Fishing
This mod overhauls fishing with 49 new fish, biome-based catches, lava fishing, new enchantments and curses, custom potions, early-game tools like the Chum Bucket, and fully reworked fishing mechanics.
AzureLib
Java Minecraft mod using Bedrock models to create custom models and animations for items, blocks, entities
Pehkui
Lets you change the size of most entities, shrinking their scale smaller or growing them larger
Caelus API
A coremod and API to provide developers access to elytra flight mechanics through an entity attribute.

Pufferfish's Attributes
A Minecraft mod that adds more attributes to the game.
Mechanicals Lib
Common library for mods.
Thermoo Patches
A suite of integration and compatibility patches for Thermoo-based mods (including Frostiful and Scorchful) and other mods
Sewing Kit
Adds a Sewing table and mechanic similar to the vanilla cartography or stonecutting

Petrolpark's Library
A library of shared features and utilities for my mods
Sable: Physics Compat
A Compat mod for Sable/Aeronautics providing tags for several modded blocks.
Data API
Tools to aid in datapack creation
Immersive Portals for (Neo)Forge
See through portals and go through them seamlessly without a loading screen.
Lootables
API for creating featureful loot rewards that go beyond item drops, and can be provided randomly or via loot box choice mechanics.

TNT Timer
Adds a timer above tnt which displays the time until it explodes.
Curtain
A Forge mod like fabric-carpet
Cobblemon Info for REI / JEI / EMI
CobbleDex turns REI, JEI, or EMI into a full in-game Cobblemon reference. Click a Pokemon and inspect its spawns, evolutions, drops, moves, stats, forms, fossils, obtainment methods, riding data, and more without leaving the game.
Inventory Tabs
Allows swapping to other in-world screens (blocks, entities, etc) via tabs. A fourth-generation rewrite of CakeWhip's InventoryTabs.
Modern Lucky Block
A Lucky Block mod recreation for modern Minecraft utilizing the datapack system.
Complete Cobblemon Collection
The Largest Cobblemon Addon Pack that gives Models, Spawns and Animations for EVERY SINGLE POKEMON.
Overgrown's Origins: Dietary Delights
A pack that adds compatibility between the Origins mod and a wide variety of food items from other mods.
Custom Guns
A fully customizable datapack & mod for Minecraft 1.20.5+ that features custom guns that fully integrate with the surrounding world. Anyone can make their own gun with a straightforward command setup.
SauceLib
Library shared between Ars Nouveau addons, containing shared mechanics, attributes and the Liquid Source fluid
Piglin Conservatory v3.0
Adds a news structure to the Nether, The Piglin Conservatory, along with a new Obsidian Apple, Dragon Fruit, Toxic Mushrooms, Hoglins' Fossils, Corrupted Emerald and a New Music Discs!
Chrysalis
Flying past the boundaries of what you can do with a Minecraft library mod!

IFramesTweaker
Tweaks How Invincibility Frames are handled to make fast weapons function properly.
Mixed Litter
A data-driven mob variant library that also contains remodels for many of Minecraft's animals
Create: Dimension, Steamworks Realm
Create: Dimension, Steamworks Realm introduces a brand-new mining-focused dimension, designed for automation and large-scale resource extraction. This world is filled with rich veins of ores
*NEW* VM computers
This project adds working computers as virtual machines in Minecraft, this is a fan made port of original VM computers by Delta2Force
Uniful
Unify Materials together!
Sable: Far and Wide (Create Aeronautics)
Increases the render/simulation distance of sable ships, so larger ones can be built without disappearing.
Hasoook
This is my self-titled mod, developed during my learning process. I plan to incorporate fun ideas and feedback from viewers into the mod and will update related videos on Bilibili to showcase detailed features and more gameplay!
Shriek
A Minecraft speech to text library; detect what your players say!

Symbols 'n' Stuff
Symbol Font! Simple library that adds a symbolic font to the game, which can be used to display visual symbols anywhere text can be displayed
KapLib
Library for all purposes
VS Unofficial Neoforge Port
An unofficial NeoForge port of the Valkyrien Skies 2 physics engine to Minecraft 1.21.1.