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Minecraft Java 1.21 Mods

Browse 423 free mods for Minecraft Java 1.21 — popular picks include Slimefun United, Command block in item tab, XGamemode.

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Slimefun United
1.19

Slimefun United

A modern and organised continuation of Slimefun’s legacy. Slimefun United transforms your server into a modpack-like experience with backpacks, jetpacks, reactors, electricity, automation and countless new systems.

2.7kdownloads
Command block in item tab
1.21fabric

Command block in item tab

This mod adds hidden items to a new item tab.

2.6kdownloads
XGamemode
1.7.9

XGamemode

You're not switching modes, you're switching dimensions.

2.6kdownloads
Hopper Plus
1.21

Hopper Plus

Hopper Plus adds multiple tiers of hoppers with unique abilities to Minecraft! From filtering items to teleporting them across distances, these upgraded hoppers will revolutionise your automation setups.

2.5kdownloads
Hopplet (Hopper Filters)
1.21.8

Hopplet (Hopper Filters)

Expressive hopper filtering, written as plain text. The most powerful plugin in this domain. Filter by any item property. Extendable via a strong developer API.

2.4kdownloads
More Search Bars
1.21.11fabric

More Search Bars

Add more search bars to various UI screens

2.4kdownloads
PySpigot
1.16

PySpigot

A Python scripting engine (plugin) for Minecraft servers running Bukkit or one of its forks (Spigot, Paper, etc.).

2.4kdownloads
AntiSeedCracker
1.21.4

AntiSeedCracker

Protekts your server’s real seed by providing fake seeds to clients and blocking seed-discovery commands. Fully optimized for Folia.

2.3kdownloads
FNAF Dreams and Nightmares (Work Game)
1.21.4

FNAF Dreams and Nightmares (Work Game)

Mod will recreate the creepy atmosphere of FNaF 4

2.3kdownloads
Networks Terminals
1.21.4

Networks Terminals

A central ME-like UI to access all items in your storage system easily

2.3kdownloads
Profitable
1.20

Profitable

Dynamic economy with real supply and demand by using an exchange system!

2.1kdownloads
OpenJavascript
1.18

OpenJavascript

Create custom menus, commands, plugins, systems, basically anything with scripts in Javascript! With multithreading and Folia support! Everything is fully documented in the documentation!

2.1kdownloads
Create: Simple storage recipes
1.21neoforge

Create: Simple storage recipes

Recipes for Tom's Simple Storage to match and use the Create mod.

1.9kdownloads
RankPlugin
1.20.1

RankPlugin

RankPlugin shows player ranks as PNG icons from a resource pack in both chat and the tab list, with easy configuration via ranks.yml, commands, and GUI.

1.9kdownloads
Magnets by Juix
1.21.5

Magnets by Juix

Datapack adding magnets that attract items around you

1.8kdownloads
Draventh Ores
1.21.8fabric

Draventh Ores

⚒ Advanced Tier Ores & Equipment This mod expands Minecraft’s survival progression by introducing 15 new late-game materials, each with full armor and tool sets. The goal of this mod is simple: Extend progression beyond Diamond and Netherite with a struc

1.8kdownloads
Faster Hoppers
1.21

Faster Hoppers

A lightweight Paper/Spigot plugin that makes hoppers transfer items faster. Works on Minecraft 1.21.x+

1.8kdownloads
Block Info
1.21.11fabric

Block Info

Hover your crosshair over certain blocks to show their block information!

1.7kdownloads
Core Utilities
1.21.8neoforge

Core Utilities

A futuristic tech-meets-automation mod for Minecraft, designed to expand the game’s core functionality with high-efficiency tools, modular machines, and directional logic systems.

1.7kdownloads
Creatures Dominion
1.21.1neoforge

Creatures Dominion

This is a mod that will have a lot of animals and even extinct ones. It is not released yet and neither finished. Please give suggestions and report bugs to me please! I hope you enjoy the mod!

1.7kdownloads
Easymenu
1.20

Easymenu

A lightweight GUI menu plugin for Paper and Spigot servers. Create menus easily with YAML configuration.

1.7kdownloads
NoNether Plugin
1.18

NoNether Plugin

Prevent players from entering the Nether.

1.7kdownloads
RankedSMPX
1.21

RankedSMPX

A highly configurable Feature Rich Ranked SMP plugin. Inspired by RankedSMP.

1.7kdownloads
Uncraftable Trims & Sherds
1.21.1neoforge

Uncraftable Trims & Sherds

Adds ability to uncraft armor trims and sherds to the useful resources!

1.6kdownloads
More Villages Datapack
1.21

More Villages Datapack

Adds more villages to the game.

1.6kdownloads
Magnetism
1.21.8

Magnetism

Datapack adding a magnet that automatically pulls nearby dropped items toward the player.

1.5kdownloads
Media HUD
1.21.11fabric

Media HUD

Media HUD is a client-side Fabric mod that adds a draggable media player HUD to Minecraft Java Edition. It supports local audio and video playback from disk, library browsing, saved HUD position, full and compact layouts and multiple visualization modes.

1.5kdownloads
Modset Policy Enforcement (MPE)
1.17fabric

Modset Policy Enforcement (MPE)

This mod has a new concept of Anti Cheat for Minecraft. Instead of looking if the User does move right it sits on the users PC and looks what mods he has installed. With that the user cant even join with mods that have been baned by the Server.

1.4kdownloads
Bloodline Smp
1.20

Bloodline Smp

Bloodline SMP Client Mod adds the custom Bloodline HUD, ability icons, cooldown overlays, and rebindable keybinds used by the Bloodline SMP server. It also syncs bloodline state and powers the client-side visuals required for the full gameplay experience.

1.4kdownloads
Kappa's AntiCheat
1.21.5fabric

Kappa's AntiCheat

A lightweight Fabric anti-cheat designed for high performance on large-scale servers.

1.4kdownloads
Mekanism Elementified
1.21.1neoforge

Mekanism Elementified

Expands Mekanism with 25+ chemical elements and compounds, specialized processing machines, and advanced industrial tools for complex chemical production chains.

1.4kdownloads
Create: Duxo's More Renewables
1.21

Create: Duxo's More Renewables

Adds some more renewables to Create Mod

1.4kdownloads
Sepd_Kits
1.19

Sepd_Kits

A Better Kits Plugin For Your Server

1.3kdownloads
CodeBots
1.19

CodeBots

CodeBots is a Minecraft plugin that allows you to create and program bots inspired by ComputerCraft's turtles.

1.3kdownloads
Better Homes
1.18

Better Homes

A simple and safe multi-home plugin with LuckPerms rank limits and teleport safety checks.

1.3kdownloads
mcs_permissions
1.21.11

mcs_permissions

Server Essentials, but for vanilla minecraft made in datapack format.

1.3kdownloads