Minecraft Java 1.21 Mods
Browse 130 free mods for Minecraft Java 1.21 — popular picks include Compact Machines, Additional Redstone, Create: Movable Tracks.
Updated daily
Compact Machines
Adds one simple game mechanic: Small rooms inside of blocks. It basically gives you the ability to build your contraptions inside of a single block.
Additional Redstone
additional redstone mechanics like logic gates and more
Create: Movable Tracks
An addon that allows train tracks to move with mechanical contraptions, enabling dynamic rail systems, movable bridges, and advanced Create-style train builds.
Plenty Plates
Many new pressure plates for all your redstone needs. Greatly customizable!

Redstone Sound Slider
Adjust your piston / dispenser / trapdoor / buildstone volume separately from other blocks.
CC: Redstone Link Bridge
This mod connects Create Redstone Link networks with CC:Tweaked computers.
Create: Northstar-Aeronautics Compatibility
This mod adds a block named Dimensional Drive which, when attached on a physics object, has a GUI to select a destination planet form Create: Northstar. It teleports the physics contraption and the player on the selected planet. No crafting recipie yet.
Aero-Reformation
Added a SubLevel-adapted chunk loader for Aeronautics, several useful changes, and new blocks, such as a chair that outputs redstone signals based on the player's view angle.
Dashpanels
A mod adding modular control panels for redstone control.
Create: Salvage
Use Create contraptions to melt unwanted tools back into resources.
AntiRedstoneClock-Remastered
AntiRedstoneClock-Remastered is a Minecraft plugin designed for Paper servers. Its main job is to detect redstone clocks running in the world, alert staff (or the console), and optionally disable or destroy those clocks.
Electromechanics
An addition to the existing Redstone ecosystem mechanically and electrically
Redstone Helper
Mod which must you to help with redstone!
Create: Enhanced Iron Processing
This is a datapack that adds a custom mixing recipe to produce crimsite renewably to enhance your iron and redstone farms.
Create: Warnautics
Create Big Cannons add-on with redstone-launched aerial bombs, multi-bomb cassettes, sea bombs, land mines, cinematic blast effects, and optional Sable ship destruction.
CraftBook
CraftBook lets you create magically extending bridges, compact Redstone circuits, complex Minecart mechanics, and much more... — all without a client mod and fully customizable by the server.
Redstone Power Enhanced
Redstone Power Enhanced is a mod that aims to enhance the creative experience in minecraft with new redstone blocks.
Laseredstone
Redstone but we use lasers to transfer signals
CCCCC
ComputerCraft Create Contraption Compatibility
Create: Capsule Corp.
Capture, store, and redeploy Sable simulated contraptions using capsules.
AntiRedstoneLag
prevents lag machine in server
Create: Lights & Controls
More lights and wireless redstone switches that plug straight into Create's Redstone Link network
Circuitry & Magic
Combines Redstone mechanics with the art of enchantment and adds unique synergy between the realms of magic and technology.
SG Tracks
SG Tracks adds tracks that work like regular wheels for Create Aeronautics. You don't need any extra mounting blocks — just place the tracks directly on your machine and build your contraption.
Tanglr
A time-tangling time-travel based redstone mod
Redstone Additions
Best redstone&tech datapack, Super optimized, 55+ blocks (Block breaker, block placer, filters, conveyors, item pipes, breeder, generators, gates, chunk loader, wireless redstone, multiblocks, jetpacks and so much more ! )
In Game Calculator
Adds a /calculator command to Minecraft for quick in-game math. Supports basic operations, parentheses, crafting math, coordinate conversions, hopper timers, geometry, time conversions, and random number generation — perfect for builders, redstone engineer
Create: Strict Links
Makes Create Redstone Link frequencies respect data components (NBT), for more frequency diversity and even password protection via named items or written books.
Redstone Robot
Redstone robots that recharge with redstone, can follow you, attack hostiles mobs with bows and a iron swords!
Create Aeronautics Addon: Plough & Roll!
An Addon for Create Aeronautics that adds functionality to the Mechanical Plough and Mechanical Roller on Simulated Sable Contraptions.
Amethyst Elevator
Simple amethyst block elevator datapack that lets players move up and down instantly without redstone or cheats.
Remote Lights
Link redstone lamps and copper bulbs wirelessly!
Redstone Logic
Welcome to a world of precision engineering and endless possibilities with the Redstone Logic mod! Dive into the mechanics of advanced redstone circuitry as you master the art of creating sophisticated machines and automated systems.
Redstone Chunk Loader
A all-in-one chunk loader, for your many needs. With settings for server owners.
Leafstone
Lock any dripleaf state via redstone
Midrian - Redstone Revolution
It simplifies all Redstone logic gates into single, functional blocks.