Minecraft Java 1.21 Mods
Browse 12,087 free mods for Minecraft Java 1.21 — popular picks include Inventory Highlighter (HighlightRender), ViewLockerMod, Horrorgames.
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Inventory Highlighter (HighlightRender)
Highlights items in your inventory 🎒 with different colors 🌈 THE FIRST remake of “Highlighter” 🔄 based on type and enchantments ✨. for newer versions 🆕, fully customizable ⚙️ with adjustable colors 🎨, rules 📏, and highlighting 🔍.
ViewLockerMod
Lock your camera to saved angles for farming or grinding — freeze your mouse with one command and restore it instantly when done.
Horrorgames
Horrorgames – A spooky Minecraft modpack with mystic creatures, eerie events, and performance optimization for smooth, terrifying gameplay.
Minecraft 1.21: Potato Certified
A Minecraft 1.21 optimization modpack battle-hardened and tested against 2006-era PC hardware! You may encounter some stuttering in singleplayer on that kind of hardware, but it's nothing unmanageable without a shield and some armor.
Minecraft Faithfully Remastered
Vanilla Minecraft faithfully remastered
AntiSeedCracker
Protekts your server’s real seed by providing fake seeds to clients and blocking seed-discovery commands. Fully optimized for Folia.
Packet Shield
Client-side mod that automatically prevents kicks from malformed packets, excessive payloads, or impossible movement. Filters packets, checks rotation, and throttles interactions.
Create: SatisFactory
Master the art of automation with a high-performance modpack. Featuring Create Aeronautics, this pack transforms your machines into dynamic physical contraptions with real-world momentum and interaction. No bloat, just pure engineering.
Animatica Continuation
Unofficial continuation of Animatica for Minecraft 1.21.11. Allows for animating more game textures using the MCPatcher/OptiFine animation format.
HighFrames
HighFrames is a lightweight Minecraft shader focused on delivering smooth gameplay with subtle visual enhancements like soft shadows, bloom, and animated water.
Create: Fresh Start
Rediscover Create with all it's new features in an advanced Vanilla+ modpack!
OptiFine for Quilt
OptiFine features for Quilt! Experience high performance - even on low end systems. 1.21.7 alpha!
Etherea Shader
A high quality vanilla-styled shaderpack built for exceptional performance.
pico's sodium optimization pack
This is a modpack designed to reduce lag using sodium.
Crazy PVP
PVP with cool visuals + optimization. Are you ready to win?
SurShield Modification
Modpack that combines the mechanical genius of Create, the iconic Satsu Iron Man Addon, and the gritty superpowered chaos of The Boys: New World — delivering advanced automation, and an immersive world of limitless possibilities.
Cobblemon: Oreidia
The official modpack for the Cobblemon: Oreidia series. It mainly features Cobblemon as well as a plethora of community-made addons, but it also contains QoL tweaks for multiplayer.
DragLed Optimized
DragLed Optimized includes a wide range of mods that significantly improve graphics, performance and the overall gaming experience. It offers updated textures, effects and animations to make the game visually more appealing.
Croptopia & Botany Pots compat
This mod adds full compatibility between Croptopia and Botany Pots for Minecraft 1.21.1 on NeoForge.
SimplyVanilla Minus
[OBSELETE] A lightweight version of the SimplyVanilla modpack

Hopplet (Hopper Filters)
Expressive hopper filtering, written as plain text. The most powerful plugin in this domain. Filter by any item property. Extendable via a strong developer API.
Optimization Maximized [Curseforge]
A Modpack with all the Optimization Mods in the World!
Rose World Shader
See the world through rose-colored glasses. Warm pink tint with soft peach highlights, subtle dreamy flicker, and gentle vignette. Perfect for Valentine's Day or just a more romantic Minecraft!
Boostic
Simple fps boost modpack
Pure Vision GUI + FPS Boost
A clean, transparent PvP HUD that removes distractions and sharpens your focus in every fight.
Bunnycraft
QoL modpack for the use on the Bunnycraft SMP

CraftsExpanded+
More crafts in the vanilla game! Recently added Trident crafting and the ability to smelt Rotten Flesh into Leather! Also, Horse Armor and Saddle are now craftable!
INTELLIUM
Intellium is a Fabric performance mod only for Intel CPU and GPUs and applies targeted optimizations all optimizations activate immediately for smoother, stutter-free gameplay.
justRTP | RandomTP, evolved.
A premium-quality Random Teleport plugin, offering unparalleled safety, performance, and more
Simple Physic
Simple Physic brings realistic item physics, ragdoll effects, and smooth first-person animations to Minecraft. Powered by Fabric, it mixes chaos and fun with great performance — watch mobs fly, items tumble, and explosions come alive!
AutoTotemX
Automatically refills your off-hand with another Totem of Undying the instant one activates.
HugoSMP
A (unofficial) performance-focused modpack specifically optimized for the HugoSMP server, featuring allowed quality-of-life improvements and visual enhancements.
Moonlight Theme | Iris Shaders
This set of resources changes the interface textures associated with the 'Iris Shaders' mod.
Auto-fishing mod
A mod to automatically reel in and re-cast your rod. Made to work with Fabric.
PySpigot
A Python scripting engine (plugin) for Minecraft servers running Bukkit or one of its forks (Spigot, Paper, etc.).
PVP Matrix
PvP Matrix – Optimized PvP Modpack for Low-End PCs PvP Matrix is a lightweight modpack tailored for Minecraft, designed to enhance player-versus-player combat while ensuring smooth performance on low-end systems.