Minecraft Java 1.21 Mods
Browse 130 free mods for Minecraft Java 1.21 — popular picks include Contraptions o' Plenty, RegexRails, SerialCraft.
Updated daily
Contraptions o' Plenty
A Minecraft Datapack that adds in (5) Brand New redstone components!
RegexRails
Add redstone logic for your detector rails. Compare minecart names, change them, and add to them.
SerialCraft
Bring Redstone to life! A simple mod to connect Arduino and Minecraft via serial port. No complications, just plug and play.
SimpleChunks
An easy-to-use chunkloader with a modern GUI, teleport system, and secure permission management — ideal for farms, redstone, and automated systems.
Redwork
Redstone automation mod
NoRedstone
Disable redstone components in specific worlds
Peaceful Silverfish
Peaceful Silverfish lets silverfish spawn from vanilla infested stone even on Peaceful. Great for Create farms and contraptions, but works perfect in vanilla too. Includes an option to mute silverfish sounds so your base stays quiet.
Hot Redstone Wires
Wires get hot! Makes redstone dust and blocks painful to step on.
Sculk Eye
Adds a new Sculk Eye Block - scans entities of a given type in a given radius and emits redstone signal based on the count
Skybound Chronicles
A private modpack for me and my friends, built around Create and Create: Aeronautics at its core — featuring airships, mechanical contraptions, and a handpicked selection of mods for an immersive experience.
Biznesmod
This mod adds new biomes, a new villager proffesion, new mechanics (upgradable abilities, collecting iron dust to make iron ingots, etc...), new custom structures (10+), a TNT cannon which shoots tnt where you look and some new redstone components.
Redstone Lamp Link
A Plugin to Control a Redstone Lamp with a Button without a Redstone Wire
Player Detector
Redstone block that detects if a player is standing on it
Create: Salvage Continued
An unofficial continuation of Create: Salvage. Use Create contraptions to melt unwanted tools back into resources.
AstraRedstoneSystems
A modern and fast plugin for advanced redstone logic systems🌌⚡️
Crystal Components
Crystal based Redstone components
Lazy Redstone
Turn redstone contraptions into single blocks.
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
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
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)
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.
Wirelessblock
Adds WirelessRedstone to your World, link your Controller to your Redstone and Controll it Wireless.
RedstoneSpawnersReloaded
RedstoneSpawnersReloaded is a very simple plugin which makes Mob Spawners toggleable via a redstone signal.
Bitwise
Expands computational redstone with new logical components
More Redstone
More fully vanilla style redstone blocks that Mojang should add in Minecraft!
Regius Redstone
This mod adds redstone components that aim to make computational redstone easier.
RedSwitch
Advanced economy-driven redstone switches. Let players sell redstone pulses for economy money
Craftable Creakings
This simple data pack allows one to craft a creaking egg in survival! Now you can build redstone machines that activate simply by looking at a creaking that doesn't despawn! (The creaking will not despawn if named)
Cobalt Age
An expanded redstone, up to 60 power lenght, waterloggable, optimized, with vertical relays, incompatible with redstone, and blue! It comes with minerals and block sets.
RedOut
Allows players to get server metrics like mspt as a redstone signal from an item frame.
EzBucket
EzBuckets make buckets extract more water like a sponge and to trigger, it needs a redstone torch
Qraftyfied: Industrial Structures Data Pack (26.2, 1.21.1) – Steampunk Builds
Qraftyfied: Industrial Structures Data Pack adds a variety of industrial and steampunk-themed structures to your Minecraft world, featuring creative redstone mechanics. Explore factories, workshops, and more, all designed to add an immersive industrial aesthetic while incorporating fun and functional redstone techniques for automation and adventure. Perfect for players looking to enhance their world with a […]