Minecraft Java 1.21 Mods
Browse 13 free mods for Minecraft Java 1.21 — popular picks include Redstone Beacon Base [PurpurPack], JoaCarpet, Redstone Power Enhanced.
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Redstone Beacon Base [PurpurPack]
Allows you to use redstone blocks as a block in a beacon base

JoaCarpet
A small carpet extension mod with useful features for redstone and storage tech (+some minor survival tweaks)
Redstone Power Enhanced
Redstone Power Enhanced is a mod that aims to enhance the creative experience in minecraft with new redstone blocks.
Fiber-Optic Cables
Adds a fiber optic cable, used to instantaneously transfer multiple redstone signals within a one block space.
Block Breakers (Pickaxe Block)
This vanilla friendly datapack adds the Block Breaker, a new redstone block!
LogicGates
Forget about giant Redstone logic gates. All logic gates in one block!
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.
Player Detector
Redstone block that detects if a player is standing on it
Extended Redstone
A mod that adds more redstone blocks with unique functionality

More Redstone
More fully vanilla style redstone blocks that Mojang should add in Minecraft!
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)
Create - World in Motion
A Create-focused modpack for Minecraft 1.21.11, centered on mechanical automation, moving contraptions, and creative factory building in survival.