Minecraft Java 1.21 Mods
Browse 3,390 free mods for Minecraft Java 1.21 — popular picks include Replicator First Type, Mighty Armor, Arcane Classes.
Updated daily
Replicator First Type
Evolving slimes harness solar energy and develop genetic mutations. Predatory spiders create evolutionary pressure. Features 12+ genes, horizontal gene transfer, DNA scanner. Watch natural selection in your Minecraft world!
Mighty Armor
Mighty Armor is a Minecraft mod that introduces specialized, tactical armor sets designed to grant unique gameplay advantages and enhancing role play.
Arcane Classes
Four classes, never-before-seen abilities, a mana system that punishes spammers, a trust system for allies, and a class trading system - Perfect for team based SMPs, or events.
FurnaceEditor
A collection of powerful in-game editors to manage crafting and smelting recipes effortlessly. Create, edit, and delete recipes via intuitive UIs without ever touching a config file.
Pivot Poly
PivotPoly is a powerful Minecraft plugin designed for creators, builders, and server owners who want to bring their builds to life with high-fidelity, smooth-animated mechanical structures.
Mechanical Factory
This is a Minecraft mod addon for Create called Factory
PalHub Creates
A mechanical tech modpack crafted lovingly by hand for a bunch of cool nerds.
Ciilu's Fletching Table
An arrow-making table mod for Minecraft 1.20.1 Fabric. Right-click the vanilla arrow-making table to open it.
EchoGrave
EchoGrave is a Fabric and NeoForge grave mod that stores player items and optional XP in graves on death, adds a Grave Compass, /back support, trusted grave access, configurable decay, localization, and optional async webhook notifications.
Random Oddities
A collection of my unclassified ideas.
ManeuverGear
A plugin that adds a working Spatial Maneuvering Device.
Rooney's AI Training Data Collector
Rooney's AI Training Data Collector gathers gameplay data to train an AI to master Minecraft. Help us build the next big thing in gaming by simply playing the game you love—all personal data is excluded!
QDC Quantum Farming 2.0
Quantum Particle Trees and Quantum Tool Crops that grow on a specific time. Crop Planter and Harvester, Tree Planter and Harvester for Automation.
Quacky's Whacky Inven
Want a weird inventory UI? Just use this, you can customise each slot of your inventory to be wherever. Most likely allowed on PVP servers as its only a UI change :)
Chewing Gum
This mod adds a pack of gums with 3 pieces inside used to remove nausea
Ultimate Step
UltimateStep is an all-in-one Paper server management plugin featuring a powerful rank system, configurable scoreboard, customizable tablist, and complete punishment tools including warn, mute, ban, kick, unmute, and unban. Lightweight, modern, and easy
DayWill's Beekeepers
This is a small mod that adds beekeepers and their unique workstation to the game!
Check on basic
this plugin is a basic version of the checkon pro plugin. if u want the full version with advanced discord logging and spy features use the provided link in the description
PlayerSmp
Let players make their own SMP in your server.
Mystic Pulse
This datapack adds drums to the game and when you play them in a specific pattern it can give you effects
Fly Tool
Allows the change of speed of flight in creative and spectator mode to cover greater distances in large maps.
FastArena
FastArena provides fast, lag-free, and fully automated arena resets
More Functional Storage Upgrades for ExNihilo
Addon for More Functional Storage Upgrades to support ExNihilo blocks
SameWorldTab
This Spigot plugin ensures that the Tab list only displays players who are in the same world as you.
Tripwire Hook Embargo
Why prevent the duping machine when you can just stop the sales? This plugin stops future and current traders from buying Tripwire Hooks.
SafeAFK
Monitor your Minecraft health remotely with a companion mobile app.
MineLinkX
MineLink v4.0.0 links Discord with Minecraft (Java & Bedrock), enabling chat sync, whitelist control, moderation (ban/tempban), appeals system, auto-whitelist, and full server management directly from Discord.
MagicFactory
Mod adding a new liminal space
Big John Machine
Big John Machine mod for Minecraft
RB_CUSTOMECOMMANDS
This Plugin helps you to add custome commands in your server.
HeezGuard
HeezGuard is a sophisticated, production-ready Minecraft Spigot plugin designed to provide ultimate server protection against bots, attacks, and malicious activities. It's a comprehensive security solution that combines advanced detection algorithms, behav
ChatManager-Core
ChatManager-Core is a library for working with Minecraft chat
Tick Film
Animate time effectively and conveniently!
Scoreboard ID
This project generate a 9-digit id for each player.
CraftLock
A simple Spigot/Paper plugin that completely disables crafting for all players. No config, no commands — just drop it in and crafting is blocked instantly
Magnetized Ingots
A lightweight data pack that adds two powerful magnetic ingots to your world, allowing you to automatically collect nearby items.