Neoforge Mods for Minecraft 1.21
Browse 4,507 free Neoforge mods for Minecraft 1.21 — popular picks include Aeronautics: Speed Wheels, Command Suite, Your Tool Is Too Powerful.
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Aeronautics: Speed Wheels
Aeronautics Speed Wheels adds a speed tuner for adjusting the speed, traction, and kinetic stress of Aeronautics wheels.
Command Suite
Command Suite adds a collection of useful commands for survival, creative building, testing, and administration, including God Mode, flight, healing, night vision, and more.
Your Tool Is Too Powerful
Manipulate break delay, allow faster mining or prevent over-breaking
Story Chat
A mod that modifies the chat, offering an interesting look and useful features with customizable settings. Perfect for creators of story-driven (and other) maps.
Glass Heart
A difficult mod that sets your max health to 1 heart.
Helpfull Action Bar[HAB]
Client mod, that adds your current coordinates to the action bar
MineRP
A mod with items and mechanics for RP servers and survival.
Just Annoying
A mod made to make Minecraft just a little bit annoying to give yourself more of a challenge.
Alex's Compressed Blocks
Compressed Blocks. Simple as that.

Shear Leaf Litter
Leaf litter now only drops when using shears or silktouch
Capable Carving
Carve anything you want, on a pumpkin!
Simple Challenge Roulette
Challenge Roulette — spin the roulette to get a random target item and a gameplay modifier, then complete the challenge as fast as you can! Winning unlocks harder items and modifiers.
Armor Management
Gear up and pick-pocket entities using Minecraft's built-in armor system.
ProjectEnervate
A ProjectE addon that rebalances EMC progression so that resource gathering and mining, and exploration remain useful throughout the game.
Savaru's Affixology
An advanced RPG affix system that transforms weapons with rarity tiers, dynamic effects, and secret inscriptions.
Zero's Bunch O' Stuff
A relatively basic mod that currently expands on amethyst uses and sculk expansion, with more to come!

DangerousGlass
Players will get hurt when breaking glass without any protection.
Red Moon Sword
My first-ever mod took a while to create!
No Chat Autofocus When Sleeping
No more accidental typing when sleeping, you now have to open the chat menu before typing. Better sleep chatting :D
CobbleBash
A Cobblemon addon that adds modular instanced type Gyms.
Shard's Compat: Voltaic-Sable Compat
Server-side compat mod fixing duplication and disassembly bugs for Voltaic on Sable, with optional Ballistix support.
Four Leaf Crystal
Adds a new mineral, Four Leaf Crystal.As well as related armor and tools
Feature Fill
Tries to fills in the gaps of missing features/parity
Hotbar Only
Drops your items on the ground.

Slime Tweaker
Small mod that adds a gamerule and config to change the size of spawned slimes.
sanwichstats
Craft consumables that allow you to change your stats & gain interesting abilities (for a price).
Miscellaneous Advancements
Adds a range of various advancements to encourage the player to do certain tasks and challenges
Via Equina
This mod adds an Auto-Ride feature based on Via Romana's roads, and inspired by the Witcher 3!
dumb skeletons
Makes skeletons hilariously bad archers.
KeepItSecret
Makes player and mob nameplates get obscured by blocks (configurable).
HIJrax's Dragon Egg Mod
Makes the dragon egg more powerful, but it can no longer be hidden away forever...
Die and Shrink!
A mod that allows you to change your scale attribute when you die
RandomMobBoost
Give a Chance Reinforcement Every Mob.
BossesChaos
Wield legendary weapons and challenge unique, powerful bosses hidden across the world. Defeat the chaos, survive deadly mechanics, and claim epic rewards!
Sloths Display Entity Editor
Create, modify, and delete Block and Item displays, even in survival!
Mob Spawn Indicator
Highlights block surfaces where hostile mobs can spawn using color-coded overlays