Fabric Mods for Minecraft 1.21
Browse 41 free Fabric mods for Minecraft 1.21 — popular picks include Additional Redstone, Redstone Sound Slider, Electromechanics.
Updated daily
Additional Redstone
additional redstone mechanics like logic gates and more

Redstone Sound Slider
Adjust your piston / dispenser / trapdoor / buildstone volume separately from other blocks.
Electromechanics
An addition to the existing Redstone ecosystem mechanically and electrically
Redstone Helper
Mod which must you to help with redstone!
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
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
Leafstone
Lock any dripleaf state via redstone
Midrian - Redstone Revolution
It simplifies all Redstone logic gates into single, functional blocks.

Whitestone Mod
Added "Whitestone" electric system similar to Redstone, but removed the delay, and let the signal can transform vertically. And added a few bugs! Note: Developer misspell 'transmitter' into 'transformer'. This bug is already fixed in 0.3.0.
Redstone Underwater
Redstone can now be waterlogged!
The Secret of Minecraft(The Secret of the Mimic mod)
Adds a mechanic to the Iron Door, so that when you place an emerald block next to it, it becomes permanently blocked, preventing any redstone signals from reaching the door. And how can I open it? With the Data Diver! This is your master key, allowing you

EZWireless
A simple, lightweight wireless redstone mod.

Redstone Capacitor
Adds a Redstone component inspired by capacitors
Redstone Frequencies
Wireless Redstone with a clean and simple Frequency method
Simple Wireless Redstone
Make redstone easier by making it wireless.
Emerald Rails
A redstone-powered Emerald Rail for Fabric that boosts minecarts 15x faster than powered rails.
Gateways
A vanilla-esque teleport pad mod for both blocks and entities with redstone compatibility
QuasiDusting
This Fabric mod modifies Minecraft's quasi-connectivity (QC) behavior, making it directional and toggleable by using redstone on a QC affected block
Gravity Core Block
The Gravity Core Block is a redstone-powered device that creates an 8-block radius anti-gravity field
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.
SerialCraft
Bring Redstone to life! A simple mod to connect Arduino and Minecraft via serial port. No complications, just plug and play.
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
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.
Player Detector
Redstone block that detects if a player is standing on it
Crystal Components
Crystal based Redstone components
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. ⏱️
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.

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.
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.
Create Pillager Arise Mod (1.21.1, 1.20.1) – Automated Pillager Bases
Create Pillager Arise Mod introduces new mechanized pillager fortresses and engineered outposts into world generation. These structures combine standard pillager encounters with mechanical contraptions inspired by Create, including automated defenses and trap systems. Features: Adds mechanized pillager fortresses to world generation Adds engineered pillager outposts with mechanical themes Includes automated defenses within structures Features mechanical […]
Launchers Mod (1.21.4, 1.20.1) – Transportation, Redstone
Launchers Mod is quite straightforward and traditional in its implementation. As the average players learn more about how to initiate a redstone mechanic, pistols commence to become a fulcrum in the operation of one machine. However, its lack of interaction with entities frustrated many, leading to the advent of these Launchers. They're quite straightforward, if […]