Minecraft Java 1.21 Mods
Browse 12,775 free mods for Minecraft Java 1.21 — popular picks include Royal Botanical Replication, RedstoneGuard, FlyEnergy.
Updated daily
Royal Botanical Replication
DataPack that adds the ability to replicate plants from mods by using the mixer from Create Mod
RedstoneGuard
This project adds protection to your server against different types of redstone lag machines. This does not affect with
FlyEnergy
Flight plugin with energy system, permission groups, crafting recipes and multilanguage support.
CozyRadio Mod
CozyRadio - Drop the Cozy Radio disc in a jukebox and every player nearby tunes into an endless, server-synced internet radio stream (MP3 relays + personal YouTube live stations)
NO MORE FLOODS!
removes flooding machines!!!!!
HugoSMP Clone
NeoForge HugoSMP Clone for Minecraft Java 1.21.8.
TownGenesis | Next-Generation Civilization & Nation Simulation
Forge Your Town • Master RPG Skill Trees • Automate Production • Conquer Empires
mWL Updated
Updated fork of the original mWL Plugin. UUID-based server whitelisting.
Simple Beacon Rework
Power up beacons as if Mojang went back and did it themselves! Configurable!
Create: Renewable Rarities
This datapack adds recipes using the Create mod for various rare items & blocks.

Vanilla Create Textures
this project changes several blocks to be instead what you use them for in the minecraft Create mod
Guardian Portal Optimization
Optimizes Guardians that go through a Nether Portal. Allows for afk farming alone.
Apple Monitoring
Lightweight server monitoring plugin for Paper and Purpur 1.19.x-1.21.x.
Gavelry
The most advanced chat filtering and mute system.
P_Tempo
P_Tempo tracks how long players remain online
RX-KeyAll
A lightweight, highly optimized KeyAll plugin with dynamic BossBar countdowns and RGB support.
Stature
Asks players for their IRL height and matches it with the game.
GuardianStone ADDON - GuardianTurrets
Automated region defense turrets - protect your GuardianStone territory with style and firepower!
create cloudless
planes and boats for the skies and moats
CC: Tweaked - Secure Boot PKI
An Addon For CC Secure boot that adds PKI to devices
Passive Falling Block Generator
Adds a block that passively generates falling blocks, for servers where the End is off-limits.
CmdScheduler+ | In-Game Calendar, Commands, Restarts & Announcements [1.21.x]
Schedule server automation through a polished in-game calendar (no cron syntax or schedule files)
New Crafting Potion
NewCrafting — Economical potion and light crafting!
Railbound
better minecarts: minecart trains, blast furnace minecarts, dispenser minecarts, junction rails, controller rails, destructor rails, and more
MangoChat
MangoChat Powerful chat plugin ever made in minecraft for free
CarbonAuction
CarbonAuction is a Minecraft plugin that adds a player-to-player auction house menu.

Titlecarts
This datapack enables the use of titles in survival with minecart tracks to announce stops, routes etc.
Docket
An open source plugin compatiblity scanner and developer helper plugin.
DiscordPunish
Automatically send beautiful Discord webhook embeds for bans, kicks, warns, mutes, unbans and more with configurable appeal buttons for Paper servers.

Useless or useful
It adds various chat-related features, some of which may be needed or may be useless.
BetterVanish By albert
Its a Vanish Plugin that's better than essentials vanish
SAutoEvents
Automated in-game events.
FluxForge | Generators, Machines, Jetpack & More
An industrial tech plugin for Minecraft servers. Build power networks, automate your world.
WorkerBlocksGUI Free
Free worker block & automation plugin with GUI management, passive income, Vault support and zerolag
Antimatterial
Antimatterial is an unofficial Mekanism addon that adds some new items, blocks and a new tool, all based on the antimatter pellet.
Redstone Diode
This adds one simple block: the Redstone Diode. What this does is attaches to any solid + conductive block below it, and transmits the power that block recieves upwards. It's as simple as that!