Minecraft Java 1.21 Mods
Browse 501 free mods for Minecraft Java 1.21 — popular picks include Player Detector, Redstone Lag Detector, Buriska's Oscilloscope.
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Player Detector
Redstone block that detects if a player is standing on it
Redstone Lag Detector
It detects if any player has made a lag machine and gives the coords and nearest player to the staff
Buriska's Oscilloscope
A new block - Oscilloscope that measures Redstone and FE power
Create: Salvage Continued
An unofficial continuation of Create: Salvage. Use Create contraptions to melt unwanted tools back into resources.
I Like Stone That Is Red
A pretty good redstone modpack.
RGBCraft
Programmable RGB strips, panels, controllers and networks for NeoForge, with animated effects, redstone control, CC:Tweaked support and optional colored lighting.
AstraRedstoneSystems
A modern and fast plugin for advanced redstone logic systems🌌⚡️
Crystal Components
Crystal based Redstone components
rtx 5090 mod
This mod adds a decorative model of the RTX 5090 graphics card. It is crafted from a diamond, 4 pieces of iron, 2 green dyes, redstone, and a stone button.
computer_6
A lightweight redstone optimization pack
Lazy Redstone
Turn redstone contraptions into single blocks.
Hopper Lock Visualizer
Client-side debugging tool that highlights redstone-locked hoppers with a red wireframe. Instantly see which hoppers are disabled — no more guessing why your item sorter stopped working.
POWERED
Revamps automation. Adds a ton of configurable & polished redstone components, allowing you to do more than ever before.
Copper Buttons - New Redstone Buttons
⚡ Craft new copper buttons with adjustable times! The perfect redstone signal extender. ⏱️
Extended Redstone
A mod that adds more redstone blocks with unique functionality
RedsTony's: Redstone Expansion
Standalone vanilla redstone overhaul
AviationLights
This mod adds a flickering effect to redstone torches and introduces three additional items that can be used as aviation obstruction lights
BioLock Scanner
BioLock Scanner is a NeoForge 1.21.1 Minecraft mod that adds a player-only redstone scanner for secure doors, bases, and automation builds. It can be mounted on floors or walls, has a configurable detection radius, and prevents mobs from triggering
Redstone Flight Control Set
Adds redstone-based PID processors and corresponding input/output blocks and way more. The goal is to make PID an accessible option for whatever machine you are working on.
SmartPack
A Paper plugin for fast, safe inventory packing: compress nuggets, ingots, redstone, and other configured materials with /pack, Smart Packer item support, exclusions, chest packing, and auto-pack options.
Beyond The Simulation
Grow a Lab Grown Brain that Connects Redstone Beyond the Distances, Dimensions, Worlds, Servers and Realities? (yes, connect redstone to real life)
Cat Factor: Redstone
A Data pack that changes some recipes of redstone componets with a realistic and cheap one.
Structure-technique-redstone
A mod for learning and viewing redstone systems like a portal, furnace, iron factory, etc.
Protect My Redstone
A singleplayer mod that detects active redstone ticks in loaded chunks and warns you before you log out to avoid breaking your farms/flying machines.
Quick Redstone
This mod allows you to speed up redstone with a single command. Its like tick rate but it only affects redstone.
Wirelessblock
Adds WirelessRedstone to your World, link your Controller to your Redstone and Controll it Wireless.
Lf-Pistons
Fully automatic crop harvesting with pistons — zero redstone!
RedstoneSpawnersReloaded
RedstoneSpawnersReloaded is a very simple plugin which makes Mob Spawners toggleable via a redstone signal.
RedStoneSpread
RedstoneSpread is a Bukkit plugin that generates organic, terrain-adapting block veins with customizable spread patterns and physics.
Bitwise
Expands computational redstone with new logical components
Redstone Unit Testing
Adds a simple interface for unit tests in Minecraft Redstone.
Datastone
Redstone but with Data and Programmeable Processors
Machinery
A high-performance industrial plugin that adds tiered resource production to Pistons and enhanced redstone signals to Hoppers and Crafters.
More Redstone
More fully vanilla style redstone blocks that Mojang should add in Minecraft!
Wireless Control
A Minecraft datapack that allows linking redstone consumers remotely
Regius Redstone
This mod adds redstone components that aim to make computational redstone easier.