Minecraft Java 1.21 Mods
Browse 535 free mods for Minecraft Java 1.21 — popular picks include Technology Valley Tweaks, Aeonis , RMK`s The One Probe Addon.
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Technology Valley Tweaks
Some addons for Technology Valley modpack
Aeonis
Take control. Command anything. Master the game.
RMK`s The One Probe Addon
The One Probe addon for different mods
CrashPanel | CrashCore
The ultimate No-Code engine. Elevate your server with hot-reload, node-based event scripting, plus full model and particle editors in one intuitive interface.
EnderchestExpand
This plugin makes the enderchest as big as a double chest
Fruitbridge
This mod contains Fruitbridging utilities to assist players. Features are designed for both the Distance and Java 12b leaderboards.
NoxesiumUtils
Communicate with The Noxesium Mod with ease.
Itematic
A mod that adds data-driven items to the game, and much more!
Teleport Mod
Force Teleport Players: Cannot teleport others to you or third parties coordinates/players Permission Tiers: No external permission plugin dependency (all players enabled by default)
Create:Belt Tweaker
it allows you to freely adjust the spacing between items on conveyor belts
Lag Detective
Lag Detective is a lightweight diagnostics mod that helps answer where the lag is coming from.
Every API
As you read the name this modpack adds all the API's that are present in the Minecraft API library. You can now download any mod without worrying about the API's that you will need to find manually, just download this modpack and you're all set.
midi
A lightweight Minecraft mod for sending MIDI-like actions from the client to the server via custom plugin messages.
G1axFixer
G1axFixer is a client-side Fabric mod that fixes resource pack crashes and optimizes network, rendering, and ticking for maximum FPS and smooth combat.
Don't Crash Obscura
Crash-guard mod for NeoForge 1.21.1 that intercepts Tom’s Storage capability lookups and inventory tracking to prevent server crashes from invalid caches, failing safely instead of halting your world.
Advanced Macro Engine
A high-performance scripting and macro execution framework for Minecraft Java Edition datapacks. Provides fiber scheduling, modular APIs, and multi-version overlay support out of the box.
farmer's attributes
a mod that adds some player attributes related to farming and cooking.
MekaMod
Adds New Stuff to Mekanism: Automation
EmakiCoreLib | Shared Runtime for the Emaki Series
One pipeline syntax, one item-source identity and one pre-check for every Emaki module.
ItemDisplayPlugin
This plugin allows the collection of items dropped within a 5-block radius in Minecraft, merging the items with the same type and displaying their quantity in the item’s custom name. Items that cannot be stacked, such as enchanted equipment (e.g., swords,
Fonts
Minecraft Font Chat Plugin. Works with unicode, custom textures coming soon. Supports Cyrillic.
Cauldron API
this mod is an api that allows mod creators to create multiple type of recipe that base on cauldron!
PulseLib
Lightweight and blazing fast library, which allows you render everything you want in game.
Simple Voice Chat Player Voice Recorder (Server-Side)
SimpleVoiceChat Player Voice Recorder (Server-Side) Record Minecraft players’ voice chats on the server using the official Simple Voice Chat API. Saves decoded audio in timestamped files organized by player UUID. Reliable, efficient, and easy to use.
AutoMessageSystem
Full auto-message system! Chat, BossBar, Title and ActionBar! PlaceholderAPI support!
Mini Block Miners
All updated Mini Block Miner Farms!
Simple Woodcutter
This mod adds a simple vanilla-like woodcutter. It's easy to craft and it has over 100 built-in recipes. You can also use it in your own mod, for example to add custom recipes to your custom wood etc.
RevertRaidChanges-Pro
Restored Raid to the logic before version 1.21. Allows most professional Raid Farms to function.
SIR
A simple chat plugin that have a lot of functions to customize your server.
GuardianAc++
Enterprise anti-cheat for 10k+ players. 12 detection modules, real-time monitoring, Discord integration, zero vulnerabilities. Professional-grade protection with dynamic scaling.
ShaderAPI-Paper
Minecraft Paper Plugin for the ShaderAPI. Let servers send you shader packs.
VelocityNavigator
The all-in-one Velocity network solution for intelligent lobby routing, parties, queues, Java and Bedrock menus, server management, Redis sync, failover, and live monitoring.
CC:Gamepad
CC: Gamepads adds a CC:Tweaked peripheral block which lets ComputerCraft computers read real gamepad/controller input from players.
Bodebojo's AFK Display
Datapack that shows when people are AFK
ICN Additions
This is a datapack created to house all crafting recipe modifications in the ICN Modpack I created.
PolyTech
a server-side tech and automation mod for Minecraft 1.21.11, built on the Fabric API using Polymer. It introduces a comprehensive energy network and a suite of machines designed to process resources and automate crafting.