Minecraft Java 1.21 Mods
Browse 201 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.
More Recipes: Redstone Ore Fix
Fixes the category Redstone Ore appears in the recipe book (MC-144900).
Redwork
Redstone automation mod
Observer Torcher
This mod allows redstone torches and comparators to react to observer pulses
DoubleDoors Beta
A lightweight Paper plugin that makes adjacent doors open and close together, no redstone required.
redstone-structure-block
A Fabric mod that allows saving structures to disk (permanent storage) instead of memory when triggering structure blocks with redstone.
3D Pistons
This resource pack enhances pistons with detailed 3D models to make redstone components look more mechanical and immersive while keeping the classic Minecraft style.
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
Artisanal Blocks
A mod that allows the customization of a block "per blockface". Additional features include light level configuration, toggleable passibility, and redstone control!
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.
True-Rails
Turn the original railway into a true transportation system. Pure gameplay mod: train composition, high-speed cruising, curve safety, precise stopping, redstone departure, and intelligent unmanned freight block loading. No new items, blocks, or entities ad
Advanced Redstone Expansion
Advanced Redstone Expansion adds sleek, survival-balanced redstone blocks, wireless quantum channels, configurable timers, smart filtering hoppers, and optional omni-directional redstone dust output.
Enhanced Spawners: Chambers of Control
Enhanced Spawners: Chambers of Control lets players upgrade and customize mob spawners using survival items, with full redstone control and spawn egg integration — all without commands or GUIs. Designed for clean, technical mob farms and dungeon systems.
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.
Keep My Creak
A datapack for your creaking-using redstone contraptions
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
Redstone Counter
Counts redstone components within a chunk, configurable Blocks in Config. Compares against a maximum allowed number.
Create: Salvage Continued
An unofficial continuation of Create: Salvage. Use Create contraptions to melt unwanted tools back into resources.
Transparent Slime Blocks
This texture pack makes only slime blocks transparent so it would be easier to build some redstone mechanisms this is my first texture pack so open for suggestions
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.
Redstone Ready Bundles
Allows bundles to interface with vanilla redstone components
Copper Buttons - New Redstone Buttons
⚡ Craft new copper buttons with adjustable times! The perfect redstone signal extender. ⏱️
Redslate
Use other stones, namely cobbled deepslate and blackstone, to craft redstone components like pistons and observers that usually can only be crafted with cobblestone.
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