Neoforge Mods for Minecraft Java
Browse 211 free Neoforge mods for Minecraft Java — popular picks include Geckolib, Advanced Fishing, AzureLib.
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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.
Tweakerge
Tweakeroo unofficial forge port. A client-side Minecraft mod that adds various "tweaks" (= usually small-ish individual features)
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
TaCZ: Fire Control Extension
Add large-sized aim assist gunplay mechanic extension for TaCZ gunpacks!
Lychee
Define in-world crafting & interactions using JSON recipes. item interaction, burning, touching fluid, anvil, crushing, lightning, exploding...

Petrolpark's Library
A library of shared features and utilities for my mods
Gamingbarn's Guns
A datapack that adds simple, purposeful guns, advanced medical supplies, tactical equipment items, and a complex automated turret system!
StartInv
You will start with a few seconds of immortality! You will never start dying again
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
Destroy
An add-on to Create which adds chemistry.
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.
Gun Core
A library that allows players to make fully functional guns with next to no setup and coding knowledge.
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.
Decorative Core
A core library mod for some Yablon's mods
Additional Entity Attributes
Adds additional attributes for players and other entities, mainly for used in other mods
Dew Drop Mod Compat
Adds compatibility between The Dew Drop Project and other mods like Farmers Delight, Farm & Charm, The Aether, Mystical Agriculture, and many more!
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!
Unruled API
Expands on the vanilla gamerules, adding new gamerules types for other mods to use and enabling players to set per-dimension overrides for gamerules
EveryMole - Alex Caves Addon
Expand Underzealot Sacrificing mechanic with datapack!