Minecraft Java 1.21 Mods
Browse 3,321 free mods for Minecraft Java 1.21 — popular picks include Blitz Mod, SyncShield, Cool Auth.
Updated daily
Blitz Mod
Blitz is an alpha-stage industrial progression mod built around packet-sized electricity.
SyncShield
Minecraft 2FA login approvals and Telegram/Discord chat sync, with rich inventory/item renders and admin controls for safer, faster server management
Cool Auth
This plugins add an authentication system to your server to make it secure.
Circuitman
Unleash your inner computer nerd (and chaotic self)
Instant Server Switcher
Instantly switch between your last or two fixed Minecraft servers with a single key press.
BrainF**k In Minecraft
This is a Minecraft mod that adds four new blocks, allowing you to run simple Brainf**k programs — a Turing-complete programming language.
Gate Pass
Add UI login system to your minecraft server and anti-bypass login system.
Worms! :3
First version of a simple mod that adds worms and composting to minecraft. Very early alpha
AntiShulkerEС
Makes it impossible to put a shulker in ender chest / normal chest
Compukter Kraft
Computers in Minecraft, programmed in a tiny statically-typed language. With a real IDE inside.
Smooth Spheres
Adds smooth decorative sphere blocks with lightweight physics, glass, metal, ceramic, crystal, and glowing variants.
Shulker Packer Mod
This mod adds the ability to automate packing items into shulker boxes.
Lag Squared
Prevents various lag machines without messing up game mechanics
ItemProgressions
A customizable plugin to lock away / delay the use of specific items until a specific condition is met
wHit - PvP Combo System
Lightweight & Satisfying PvP Combo System
Accurate Hopper Recipe
Datapack adding a cheaper hopper recipe which is semi-accurate to the in-game model
ServerTasks
A plugin for Paper 1.21 that automates tasks like restarts, broadcasts, and custom commands with timeline notifications.
BringBackSquilly
Brings back the Squilly respawn mechanic/glitch in 1.21+.
Create:Railway Operations
Adds train door control, station announcements, and ghost seats to Create mod. Features include schedule-based door operations with station direction following, broadcast audio playback on carriages, and invisible no-collision seats.
SM's MC Education port
Adds some features from Minecraft EDUCATION to Minecraft java edition
SqueakyFeatures
This mod adds plenty of things (for now only adds tungsten, pyrolite and welding table)
Over the Top
Aims to bring World War One era Trench Warfare to Minecraft
BanPact
This plugin adds the ban pact from Trim SMP. It adds a book capable of banning players and a ritual for reviving them
MashAliases
Create custom command aliases with per-alias permissions and multi-action execution for Paper 1.21+.
RXVY AUCTION HOUSE
tired of auction house plugins that dont work and are boring? well welcome to the rxvy auction house plugin and if you need help or questions go to https://discord.gg/Xx8h2Th8qv
Void Pressure
A flexible NeoForge framework for modpacks, providing a global pressure system to trigger fully configurable events.
RealClock
This plugin let you customize your world time and weather based on your server GMT and OpenWeather. Highly Customizable using config.yml
Logout Timer
This mod allows you to set a timer in game and when the timer reaches your desired time it boots you from the world/server you were in. This is great for afking on large servers where you dont want to be found or just to not die in game.
CordLeacker
The plugin allows players or admins to quickly find out the coordinates of another player using a simple /cord command.
MidiReceiver
The MIDIReceiver plugin plays Minecraft note block sounds based on real-time MIDI data sent from the client
Snippet
The ultimate screenshot upgrade for Minecraft. Browse, edit, and share instantly - soon featuring toggleable layers.
Chunk Ticker
Keeps selected chunks permanently loaded and fully ticking
Sky Ice Walking
A configurable Minecraft mod that lets you walk on air by placing ice beneath you as you move, even while jumping or flying. It also includes a customizable keybind to toggle the ability, plus crouching to descend while the ice continues placing.
MagicalMechanics
A hybrid mod that blends industrial technology and magic, letting you progress through both machines and spells.
Kaidon Essentials
A structured essentials plugin built for performance. Core systems with Vault and PlaceholderAPI dependencies, focused on flexibility and integration.
FancyLike
A premium Minecraft plugin for public servers that allows players to rate the server with a fancy rating system.