Minecraft Java 1.21 Mods
Browse 3,387 free mods for Minecraft Java 1.21 — popular picks include CountryBlock, OpenMinetopia, DailyRewards999.
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CountryBlock
Advanced country blocking system with VPN detection and continent support. Control access to your server based on geographic location. Webhook support

OpenMinetopia
OpenMinetopia is een open-source Minecraft plug-in die zich focust op het namaken van het Minetopia concept.
DailyRewards999
DailyRewards999 is a fully-featured, configurable daily rewards system for your Minecraft server. It encourages players to return daily by rewarding them with configurable items through an intuitive GUI interface.
EmakiCoreLib | Shared Runtime for the Emaki Series
One pipeline syntax, one item-source identity and one pre-check for every Emaki module.
Fiber-Optic Cables
Adds a fiber optic cable, used to instantaneously transfer multiple redstone signals within a one block space.
Tycoon Shop
Tycoon Shop — a mod that lets you create custom shops and sell items using its own in-game currency.
Stealth Light
Simple and versatile crafting of an invisible block of light for Minecraft Java
Craft Disabler
An plugin that can block any craft you want.
Max´s ScoreBoard
Scoreoard Für Paper 1.21 Server
TabScroller
Scroll through your Minecraft tab list 📜➡️, seeing all players on crowded servers!
ZCommandCooldown
Zepsi's CommandCooldown. A simple Command Cooldown plugin.

Grimm's Mod
Everything you could want! Leveling, features of old mods, economy, technology, custom items, blocks, commands, transmutation of items and even more!
ItemDisplayPlugin
This plugin allows the collection of items dropped within a 5-block radius in Minecraft, merging the items with the same type and displaying their quantity in the item’s custom name. Items that cannot be stacked, such as enchanted equipment (e.g., swords,
NSR-AI
Gemini + ChatGPT Powered AI Chat for Minecraft: Fast, Smart & Server-Friendly
Loris Energy
Loris Energy adds a dynamic energy system where sprinting, jumping, and attacking drain stamina. A visual energy bar helps manage endurance, encouraging strategic movement.
Damage Tracker
This is a simple Fabric mod, that allows you to see your own health changes in the action bar.
Cauldron API
this mod is an api that allows mod creators to create multiple type of recipe that base on cauldron!
Create: Threshold Fix
Fixes Create's Threshold Switch misreading vaults that hold non-stackable or partially-stacked items.
Spawner Upgrades
A datapack that allows you to collect spawners with silk touch, and/or upgrade them with craftable custom items.
Crafter10
Crafter reads signal strength 10 if all Stackable items inside are greater than 1
Universal Trinkets
Modular, command-powered trinkets for mapmakers, mod-pack devs, and power players.
Render Distance+
Automates the Chunky chunk loading workflow for Voxy to seamlessly boost your render distance.
Neptune Core
All-in-one core plugin. This is all you need for your Velocity Server

Whitestone Mod
Added "Whitestone" electric system similar to Redstone, but removed the delay, and let the signal can transform vertically. And added a few bugs! Note: Developer misspell 'transmitter' into 'transformer'. This bug is already fixed in 0.3.0.
CustomScreenMenu
A groundbreaking plugin that completely customizes players' screen option menus and features 3D mode
D3letes Better Cords
its a hud that adds cords and what way your facing and also adds a player radar for public severs all you got to do is click tab and the hud shows
Server lag fix
it reduces server ping significantly
Fake Tab Players
An advanced Paper/Spigot plugin that adds realistic, AI-driven fake players to your server's TAB list. Fake TAB players with LuckPerms + AI chat.

UltiItems
Adds a GUI which gives you above god-tier items.
Create Numismatics: Spur Recipe
Adds a spur recipe addon for Create: Numismatics
Improved Stonecutter
The Stonecutter is now also a Woodcutter which adds balanced stonecutter recipes for wood. Made for Paper and Fabric. Simple!
Ironpowder
Adds guns, equipment, armor and new gameplay to Vanilla Minecraft
Redstone Additions
Adds breeders, block breaker, conveyors, block placers, and more !!! Vanilla friendly
Bliss SMP Duels
This Project adds a stripped down version of the bliss smp season 3 plugin.
Sync Re-Forged
One mind. Many bodies. Transfer your consciousness between shells.
InfiniteBuckets
Infinite water, lava, and sponge buckets for 1.21+. Features MiniMessage support, Folia compatibility, and deep integration with WorldGuard, Towny, and GriefPrevention.