Minecraft Java 1.21 Mods
Browse 1,228 free mods for Minecraft Java 1.21 — popular picks include Simple Redstone Torches, Pridestone - Nonbinary, Trappers resource pack.
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Simple Redstone Torches
This pack makes a simple change, Redstone Torches are now similar in color to other Redstone components while maintaining the style of other Torches.
Pridestone - Nonbinary
A resource pack that modifies redstone to be Nonbinary themed using Cyanstone.
Trappers resource pack
Makes pistons, observers and other redstone items more bare bones style, makes webs red, makes sting impossible to miss and changes the pickaxe
FaxeL's Better Redstone
More convenient look for redstone components
Precise Physics Staff
Adds a new physics staff that is really precise at moving / rotating the contraptions (WIP)
Stari's Redstone Pack
Adds various tweaks to enhance your redstoneing
24w33a Redstone Torches
This resource-pack retextures redstone torches from older versions to the redstone torches from the snapshot 24w33a
Process Optimized
PROCESS Optimized Pack, deeply tuned for low-end GPUs, delivering stable 300-512 FPS with full technical redstone support, bringing smooth Minecraft 1.21.10 gameplay to aging hardware.
Simple Copper Wrench
Rotate blocks easily with the Copper Wrench – the perfect tool for builders and redstone engineers.
Redstone from Blood
Adds a simple recipe to make Redstone from Blood and sand. This data pack requires the Butchery mod to function.
Crops growth detector
Enhance your farms with the new crops growth detector, a machine that outputs a redstone signal depending on the crops age.
Pridestone - AroAce
A resource pack that modifies redstone to be AroAce themed using Cyanstone.
1Luiisssss
Redstone, Technical, Survival, AstrumSMP
UltClearLagg
Advanced lag reduction, automatic cleanup systems, mob optimization, TPS monitoring, smart entity management, redstone lag prevention, Bedrock GUI support, and real-time server performance tools.
Pridestone - Genderfluid
A resource pack that modifies redstone to be Genderfluid themed using Cyanstone.
Redstone Galore: Light Leak AddOn
Redstone Galore adds to the default Light Leak Experience by adding a multitude of features regarding the redstone aspect of the game, including blocks such as rails, pistons, and redstone lamps.
Black & White Redstone Lamps
Makes redstone lamps black and white instead of yellow
Bacon SMP
The Bacon SMP is a mod that introduces custom weapons and a redstone-powered string duper to the game. The custom weapons are crafted from valuable materials. This mod is still in development. There are many bugs.
Gravity Core Block
The Gravity Core Block is a redstone-powered device that creates an 8-block radius anti-gravity field

Elektrofy
A lightweight GUI resource pack designed with a redstone and energy aesthetic, perfect for tech-themed builds or mods.
Chunk Border Redstone Highlighter
A client-side performance debugging tool that highlights redstone components sitting on chunk borders — the #1 cause of server lag. Toggle with one keypress (O).
Create: APU
Adds a dedicated APU (Auxiliary Power Unit) for engine cold starts and mid flight power loss. Activated with redstone and powered by coal, no need for handcranking.
Create: Signalworks
Create: Signalworks is a small Create addon for building more varied redstone control systems.
Create: Hyperdrive
Adds a Hyperdrive block, which allows for sable contraptions to teleport between dimensions
Create Physics Staff
This mod introduces a Remote Physics Staff that allows you to transform structures into fully physical contraptions from afar and seamlessly restore them back into blocks.
Missed Tinkering
The combat and tinkering update added some cool things! This mod expands on the tinkering theme to provide some fun new redstone items.
Mojav Optimised
This modpack is designed to supercharge Minecraft performance on Fabric, improve framerate stability, reduce lag, and offer useful quality-of-life enhancements — especially on tougher worlds with lots of entities, redstone, or visual load.
Izmaost's Floral Redstone
Reworks redstone to look more like floral vines. Great for decorating and for people who don't like redstone!
Block Speed Mod
Block Speed Mod lets you configure how many items are processed per Redstone pulse for Droppers, Dispensers, and Autocrafters. All settings are saved per world, so each save has its own independent configuration.
Aero Block Ban
Prevents configured blocks from being placed on simulated contraptions
RedCheck
Redstone info HUD for Fabric!!
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.
Redwork
Redstone automation mod
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.