Minecraft Java 1.21 Mods
Browse 12,799 free mods for Minecraft Java 1.21 — popular picks include technis, Omega Chat Games, Energy Canyon.
Updated daily
technis
TECHNIS is a voice-activated AI assistant for Minecraft 1.21.4 - like Jarvis. Speak to the mic, TECHNIS sees your inventory, health, mobs, and replies with speech. Animated orb HUD, proactive alerts, info panel, in-game config. Requires Groq API key.
Omega Chat Games
Automated chat-based mini-games for your server.

Energy Canyon
Have fun in this energy themed mod all about, ELECTRICITY!
Death analytics
This project adds the mod death analytics
zCaps
Allows players to type commands in any capitalisation. (e.g. /Gamemode, /SuMmOn)
Auto Fisher
Adds a multiblock auto-fisher structure that catches fish every 60s
Supreme Crafting
Questionable mod with questionable features. Surely won't be used for some questionable endgame of some questionable kitchen sink modpacks
SafeReturn
Automatically redirects players to the lobby when a backend server shuts down or crashes.
MCGun
Add Some Fun About Guns!You Can Craft Them!
Z0nexx plugin hider
a very simple and good plugin hider with a easy configuration file
Fleet Sell Portals — Fully Automated Selling for Farms & Grinders
Optimized auto-sell portals, Make every farm 100% efficient with instant auto-sell.
Data Guard
It's a PaperMC plugin that automatically saves player and server data so nothing gets lost or rolled back unexpectedly. It snapshots everything — inventory, armor, ender chest, XP, health, food, potions, and location.
mHub
A plugin designed for managing a HubCore is an add-on specifically designed for use with your lobby.
MegaBackpack
A high-speed pocket inventory with 27 storage slots, accessible anywhere by pressing the N key!
Shiftly
Shiftly is a simple Velocity plugin that allowes admins to move players to different servers.
Queue Plugin
An Queue Plugin for Velocity, easy to set up!
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.
SleepPro
The Lean & Mean Night Skipper!
SimpleNavigator
Solves the problem of not knowing which warp it is to teleport to with an easy to use menu that is fully customizable!
Timber´s Call
Timber’s Call adds Grimbark, an automatic woodcutting NPC, unique workstations for progression, mystical crafting, and a boss fight — all without a resource pack. Answer the call!
RoyAutoRestart
A Minecraft plugin that automates server restarts according to a configurable schedule with countdow
Electronium Refined
The cure to the 2-week Minecraft phase. A deeply optimized, long-term Vanilla+ adventure with seasons, exploration, and a touch of Create.
EventStorm
The ultimate automated events plugin for Minecraft servers.
Cobblemon: Steam and Air
A cobblemon modpack made for a minecraft server

More Redstone
More fully vanilla style redstone blocks that Mojang should add in Minecraft!
Mossy
A next-generation peer-to-peer networking mod for Minecraft.
Simple Brass tools
A simple steampunk-themed resource pack that reimagines Minecraft tools with a subtle industrial aesthetic. Designed to fit naturally into vanilla-style gameplay, it adds brass to tools without straying too far from the original look.
JsChatManageMent
ChatGuardX is an advanced Minecraft Paper 1.21+ plugin that provides complete chat moderation backup and security system for servers. It includes anti spam caps detection blacklist filters and link blocking to keep chat clean. The plugin supports mute unmu
Secret's of the Stone
This story is yours to uncover in the stone, explore a new dimensions, craft new help, and reveal what lies in secret. (Exploratory dungeonlike + story)
CutCommand
Dynamic Shortcut Plugin Create permanent command shortcuts instantly with custom variables (like %block% or %item%), built-in tab-completion, smart -- delimiter support, and automated LuckPerms permissions. Highly optimized!
Custom Clutch Inputsounds
You can customize Clutch Inputsounds
Addition
Some additions and improvements for MSS
SpecLock
Prevent spectator cheating on your server, lock spectators to their own team, restrict their range, and auto-teleport them if they stray too far
NxRestrict
NxRestrict is a powerful GUI-based Minecraft plugin that lets you easily enable or disable gameplay features globally or per player. It provides real-time control with no restarts, using a clean interface and instant enforcement.
zalk's stats
zalk's stats. read the logs nerd!
rilkay's AFK-Chat
Broadcasts that the player is AFK in the chat.