Minecraft Java 1.21 Mods
Browse 126,938 free mods for Minecraft Java 1.21 — popular picks include Pandemin snowball, Radioactive Skulls, Cooler Tools.
Step by step: How to install Minecraft Java mods & modpacks
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Pandemin snowball
replaces the snowball texture to me
Radioactive Skulls
Changes the way skulls are rendered so they will be displayed even when they are not in your view
Cooler Tools
Cooler Tools adds knives that are faster than swords and provide extra meat when butchering animals. Also includes obsidian and windcharged tools and useful new enchantments like AutoSmelt.
Prabhat's MENU
MENU is a powerful Minecraft plugin by PrabhatPie that adds a customizable GUI menu. Admins can create, manage, and assign commands to items, while players can easily access server features through an interactive and user-friendly menu system.
IGE - In Game Editor
This plugin allowed you to edit your config files inside minecraft without going into the files

Ziyang‘s item
I created an ice magic sword with two special functions: first, it can slow down the movement speed of creatures; second, it deals more damage to creatures with higher health.
Craftable coins
A really lightweight and simple datapack that adds gold coins!
K4H2's Butter Font
This resource pack slightly changes the minecraft font to look much better by adding just a few pixels
Coordinate Share
Passcode-based coordinate sharing for multiplayer servers and LAN worlds.

Full Ore Tools
Makes tools have the handle to be like the ore they are made from instead of it being made from stick
Vanilla Plus by czqawa
Project: Minecraft datapack adding recipes, custom drops, and experience from mining blocks and harvesting crops, while also fixing and improving several game mechanics and loot tables.
LsSpyGlass
Shows live player info in the action bar while using a spyglass
TNT Rebalanced Recipe
Simply alters the crafting recipe of TNT to be a little cheaper.
LuxDiscord
A modern and new way to link Discord and Minecraft
GET DOWN MR PRESIDENT! Totem
Resource pack change your totem to pepe-frog and add sound from meme - GET DOWN MR PRESIDENT!
[TMG] GameLib
A library for TMG's minigames
Beatable structureless superflat
A datapck that allows you to beat minecraft in a superflat world with no structures or bonus chest
Coordinates Leak
Coordinates Leak is a Minecraft plugin that automatically reveals player coordinates at configurable intervals, adding tension and strategic pressure to SMP, Lifesteal, and PvP servers.
NetheriteSilkSpawners
A Minecraft Paper 1.21.1 plugin that allows players to collect Spawners while preserving the original mob type.
Miaspec Pride Flag Hearts (5-Color)
Changes the Minecraft Hearts to a Miaspec Pride Flag (5-Color) – Part of the Pride Hearts collection.
Polysexual Pride Flag Hearts (Tricolor)
Changes the Minecraft Hearts to a Polysexual Pride Flag (Tricolor) – Part of the Pride Hearts collection.
Miaspec Pride Flag Hearts (5-Color Vertical Alt)
Changes the Minecraft Hearts to a Miaspec Pride Flag (5-Color Vertical Alt) – Part of the Pride Hearts collection.
HttpChat Python chat, Linux chat
A mod that adds the ability to send messages or commands to the chat on behalf of the player directly from any programming language or console.
Fire Blaster Enchant
Lets you shoot fireballs from your sword.
FlySwitcher
A plugin that allows you to turn fly on or off.
Maths Quiz
This is a maths quiz it's give u reward if u solved thease questionz
PacketPortal
PacketPortal is a Spigot/Paper plugin that allows you to manage and deliver item packages to in-game players directly via Discord commands (also has GUI).
Jungle's Air Challenge
this mod kills you whenever the block at your coordinates is `air`
Variance
This datapack adds new biome dependent varaints to cows, pigs and chickens along side their vanilla couterparts. It also adds a few nametag easter eggs
Techies Explosion ResoursePack
Just simplest dota 2 resource pack
ChunkWorldBuilder
Patch-based world expansion plugin for Paper: builds a target world from donor-world patches as players explore.
SpyWebSocket
SpyWebSocket is a lightweight Paper plugin that exposes a secure WebSocket API for remotely interacting with a Minecraft server.
DiscordAvatarBot
Discord bot for generating Minecraft player avatars
DiscordActivity Feather Client
A plugin that allows you to set up Discord Activity for players who use the Feather Client.
Wednesday Addams Totem
This texture pack changes your totem to Wednesday Addams.
Contracts Book
Replaces the texture of books with contracts