Minecraft Java 1.21 Mods
Browse 127,691 free mods for Minecraft Java 1.21 — popular picks include VoiceConnector2, EFZ - Simple Crosshair., KekOptimized.
Step by step: How to install Minecraft Java mods & modpacks
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VoiceConnector2
Connect Plasmo and Simple voice chats!
EFZ - Simple Crosshair.
Custom crosshair that replace original one
KekOptimized
Modpack for Minecraft optimization based on VulkanMod with useful client mods for improving gameplay.

Glitched Out
A resourcepack that makes all textures look glitched out by moving parts inside the texture
The Nullified Perils
Embrace the void.
ILoveHobo's Colony Ruler
A mod pack designed to help you build an unstoppable Minecraft colony, and explorer technology alongside the demands of being a ruler!
MessageBroadcaster
Automate Your Server Messages with Ease
Zapped
A Data-pack that turns lightning rods from a useless block to a way to transport zaps to machines and productivity armor.
ImWhy's modpack
A simple mod pack from me that will provide comfort for your game.
Hoppy Cards
This is a mod with a couple of cards
FranceMod
This mod adds French culture to Minecraft.
BetterFrames [Fabric]
Extremely lightweight and compatible performance pack, you can also join any server with it!
CombatLock
A simple, easy-to-use, fully configurable Anti-CombatLog Mod.
More+better biomes
3 mods that add biomes and reworks the existing ones (+1 for multiplayer)

Better Exploration
This modpack adds a lot to better your adventure to Minecraft. It also adds a new breath into Minecraft to make it not boring.
Personal Disc Player Compatibility
[ARCHIVED] Personal disc player compatibility for your convenience. Adds support for VinURL (version 1.2.3-1.21.4) and Discs Where Discs Shouldn't Be.

NFFC Enhancement Pack
This modpack was made for the No Friends Friends Club Minecraft server.
Void's Crossbow Effect Overlay
Shows loaded tipped arrow and it's upgrades on the crossbow item
kts-system
Client bank system for minecraft servers Client side mod for create ecosystem on private minecraft servers
DMS Toad
This resource pack adds a small chance for the DMS mascot toad to appear!
Boomerangs
Turn Tridents into Boomerangs!
Neoforged Flashback
Modpack focused on using Flashback in Neoforge. Currently supporting 1.21.1. Also includes performance & quality of life mods for smooth and satisfying gameplay. Shader & resource pack support included.
Arabic Fixer for Bedrock
Fixes Arabic text display between Bedrock & Java players with proper customizable chat formatting
From Mill to Mechanism
Simple modpack based on Create and Modern Industrialization.
CustomFontFix
Fixes Z-fighting issues caused by TTF font rendering in Minecraft, especially when using glow ink on signs. Optimized for third-party pixel fonts like 'Neo둥근모 Pro'. Some fonts may not display correctly due to inherent rendering limitations.
Inventory Visual Enhancer
Inventory Visual Enhancer is a client-side mod that improves Minecraft inventories with rarity glows, stack rings, and animated icons, making item management clear, stylish, and lightweight.
Advanced RGB Lamps
An RGB Lamp mod, with optional colored lighting & computercraft support
FAHHH Explosions
Replaces explosion sounds with FAHHH
Inventory Link
Link everyone's inventory for a fun twist on multiplayer!
No Item Swap Animation
Removes the annoying item swap animation when switching between hotbar slots. Items now appear instantly at full height instead of slowly sliding up from the bottom of the screen.
Opaque
Build with glass like it’s a box of coloured candy. Opaque adds a full set of glass building parts in every vanilla glass color (plus clear): doors, trapdoors, fences, fence gates, and stairs. They look airy light and bright
Biome Houses 2: Fresh beginning
Continuation of my previous mod, Biome Houses, with fresh new houses for nearly each biome! Made with MCreator!
MS_Meteorites
A Fabric mod that introduces meteorites with visual effects including sky flashes and particle trails, destructive impact mechanics, and three cooling stages of meteorite blocks.
Evol's 3D Cactus Overhaul
An overhaul to the cactus, cactus flower and potted cactus. The textures are 32x32 and the potted cactus includes 4 variant pots. This is the Beta Release More Texture work is needed still.
Machines and Mythology
Magic or Technology? Build a Factory or become a Vampire this modpack mixes Both Arcana and Automation
LoverMods
LoverMods is a utility mod for Lovercraft dedicated to making the server more together. The mod features farming, skin trading and other misc changes.