Neoforge Mods for Minecraft 1.21
Browse 1,398 free Neoforge mods for Minecraft 1.21 — popular picks include Immersion in Traffic Context 2, Cobblemon Elementals, Don't Crash Obscura.
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Immersion in Traffic Context 2
Adds customizable barriers & asphalt roads (+30% speed!). Design unique streets, works with/without Ultimate Car Mod. Survival recipes included. Build realistic traffic systems!
Cobblemon Elementals
This is a Cobblemon Focused Pack that Allows you and Your friends to venture out to find all of the Cobblemon. It also includes many mods that make automation of pokeballs easier and more storage in a compact form.
Don't Crash Obscura
Crash-guard mod for NeoForge 1.21.1 that intercepts Tom’s Storage capability lookups and inventory tracking to prevent server crashes from invalid caches, failing safely instead of halting your world.
Somewhat Sophisticated Vinyl Decor
Aims to improve the music disc collecting experience such as adding Disc racks and more.
EverythingInOne
This mod has a lot of different and weird stuff ranging from tools, armor, machines, ore, and more!

Building Gadget Refined Storage Bridge
Adds a bridge allowing Building Gadgets to insert and extract items/fluids from Refined Storage 2 networks.
Othertime
Adding modern, industrial, and futuristic content to Minecraft!
Steve's Simple Storage
A Minecraft mod that adds a scalable, multiblock storage system where players can store millions of items in a single system with built-in crafting, sorting, searching, automation, and security features.
The Addition
Adds many² things.
create: nuclear industry
a create addon that adds realist fully simulated atom physics for nuclear reactors
Multiblock Fluid Tank
A Multiblock Fluid Tank with three differen sizes. Tanks can have any form or size.
AutoLoot
Mod that automatically collects items from broken blocks and killed mobs directly into the player's inventory.
Super Backpack
Added more super backpacks.
Blazing Glory [Guns]
This mod adds guns, 'nades, curios-like equipment system and a few blocks.
Create Recycling V2
Recycling mod for reverse recipe generation! Generates crushing wheel recipes to recycle your Create items!
Moth's Fancy Block Trims
Late game decor without the clutter!
Create: Shared Access
Allows you to add trusted players to your Create Stock Network for shared access.
CloudCraft ModPack
A Create-based pack , featuring MineColonies, ProjectE, and Refined Storage, as well as combat enhancing mods and new mobs to fight.

Grimm's Mod
Everything you could want! Leveling, features of old mods, economy, technology, custom items, blocks, commands, transmutation of items and even more!
Replication: Fluxworks
Adds the Flux Matter Engine, a 3x3x3 Replication addon multiblock that generates selected matter from FE and pushes it into Replication-compatible storage networks.
Quick Link (Wireless Logistics)
A lightweight mod that adds Quick Link blocks for early-game wireless item, energy, Mekanism chemical and fluid transfer with color channels and side configuration.
Dim Botany Pots
Botany Pots meets DimStorage. Transfer your Botany Pots harvest directly into your DimStorage Network.
Meat Cuboid
Ever wanted to make blocks of meat? Now you can.
Chest Organiser
Easily organize your storage! This mod automatically sorts your items into nearby chests based on customizable item categories, distance, and chest-specific overrides.
ReInventory Hotswap (continuation of Inventory Hotswap)
Hotswap inventory slots or entire hotbars at ease!
NeoFavoriteItems
A simple two-way synchronized slot lock (slot collection) mod
PixelBlockRanch
Classic Pixelmon ranch block experience from 1.12.2 brought to NeoForge 1.21.1.
Sophisticated Backpacks: Advanced Crafting Upgrade
Adds an advanced Sophisticated Backpacks crafting upgrade that can craft using items inside nested backpacks.

Living Item
Let your items come alive inside inventories
Better Lost Items
Better Lost Items tracks despawned world drops, saves player death loot, and turns wandering traders into recovery merchants. Configure recovery costs, fetch supplies, burned loot, and void loot directly from Mod Menu.
Fast Slot
Changes Brewing Stand shift-click behavior for Blaze Powder to prioritize the ingredient slot.
Echoes of Kaepora
✨ Magic 🔮 Mysticism 🗡️ RPG Progression 🎯 Skills 📜 Classes 🛡️ Professions ⚔️ Combat 🧿 Relics 🏆 Legendary Items ⁉️ Questing 🗺️ Exploration 🌍 New Dimensions 🏰 Structures 🌱 Farming & Cooking 🎒 Backpacks 🧭 Waystones 🛠️ Quality of Life 🎧 Immersive
Beetle's Basic Fun Advanced
Modpack that adds a few QoL mods to the game such as backpacks and mini maps while still keeping things simple
99 Nights In The Forest
I am making a mod thats like 99 nights in the forest the roblox game but in minecraft it will start very simple and might have bugs
Amulet Bag (Apotheosis Addon)
A small unofficial addon that adds a dedicated bag for Apotheosis charms.
Storage Terminal
Storage Terminal in your vanilla world! Totally clientside!