Neoforge Mods for Minecraft 1.21
Browse 18,783 free Neoforge mods for Minecraft 1.21 — popular picks include Animal Pens, More Useful Copper - MAJOR UPDATE 3.0!, Mob Battle Mod (Forge/NeoForge).
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Animal Pens
Reduce lag and keep your animals neatly stored while maintaining full interactivity!
More Useful Copper - MAJOR UPDATE 3.0!
New uses for copper, such as statues, aquatic redstone, and many other tools!
Mob Battle Mod (Forge/NeoForge)
Creative utensils in creating mob battles
CapabilityProxy
Access block capabilities from multiple sides
[Let's Do Addon] Compat
Adds compatibility for the Let's Do mods so you don't have to do
Epitaphs
A basic grave mod that does just that
Treasure Bags
Loot bags created with data packs, plus a starting inventory loot table
Drink Beer Refill
Brewing, bartending and bartering!
Item Banning
Ban specific items from showing up

CERBON's API
A library mod for CERBON's Minecraft Mods
Rough Tweaks Revamped
A mod that adds an extra layer of difficulty to minecraft's health system
Apotheosis x Iron's Spellbooks Compat
Apotheosis Content for Iron's Spells and Spellbooks
ExtraLib
Library for mods.
RuOK
RuOK Mod is a Minecraft optimization mod focused on providing simple and practical performance improvements. It also automatically adjusts graphics settings based on performance scores (when enabled in settings).

Cobblemon cafe
Adds new outfits to some Pokémon based on those seen in Café remix!
ewewukek's Musket Mod
Adds craftable flintlock weapons
Create: Molten Vents
A renewable source of create's orestones
DivineRPG (Official)
8 New Dimensions ♦ 115+ New Mobs/Bosses ♦ Hundreds of New Blocks and Items ♦ Unique Weapons and Armor
Mannequins
👋 Strike a pose!
Cobblemon Quests
Adds integration between the mod FTB quests and Cobblemon
Via Romana: Infrastructure-Driven Fast Travel
Via Romana introduces a fast travel system where players can link signs over paths, allowing for instant teleportation between them.
Reliquified Ars Nouveau
Compatibility addon between Relics and Ars Nouveau
Epic Fight - Avalon
Simplify the animation registration process to align with animators' workflows.
Healthy Water
Now you can drink water to recover half a thigh of food and half a heart!
No Hostiles Around Campfire
🔥 Prevents hostile mob spawns and burns them around the campfire in a configurable radius.

Remove Stardust Labs Intro Message
A datapack/mod to remove the intro message that appears with Stardust Labs projects.
Despawning Eggs Hatch
🥚 Chicken eggs on hay blocks hatch safely into chicks just before they despawn.
OpenBlocks Trophies
Adds a flexible trophy system inspired by the trophies from OpenBlocks
Good Ending
This mod aims to improve the wilderness
Randomium Ore
A new ore that behaves randomly and can drop any item
Sounds Be Gone!
Allows you to disable specific sounds you don't like. Perfect for people with Misophonia!
Underground Rivers
Rivers, but underground! Wild, isn't it?
MOA DECOR: ART
Add new models of decorative art´s items for your constructions.
FTB Stuff & Things
Sluices, Jars, Crushers, Hammers, and a lot of other stuff and things
Rock Candy
An Underground Food Mod
Unusual Fish Mod
Adding obscure fictional fish and other aquatic creatures!