Minecraft Java 1.21 Mods
Browse 18 free mods for Minecraft Java 1.21 — popular picks include Redstone Sound Slider, Redstone Helper, Networks.
Updated daily

Redstone Sound Slider
Adjust your piston / dispenser / trapdoor / buildstone volume separately from other blocks.
Redstone Helper
Mod which must you to help with redstone!
Networks
Redstone-Free Automatic Storage Systems, Vanilla-integrated
AntiRedstoneLag
prevents lag machine in server
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 ! )
Copper Wiring
Lightning Rods can function as electrical wires, transferring power in ways Redstone cannot! Circuitry has been transformed!
AntiRedstone| Advanced Redstone Lag Prevention [1.18 - 1.21.4]
A performance-friendly plugin that blocks all redstone activity on your server and reports coordinates of redstone spam attempts.
Cobbromon
This modpack blends the creature-collecting adventure of Cobblemon with the mechanical creativity of Create. Explore the world, build clever contraptions, and grow your team—all in a seamless mix of exploration and engineering.
LogicGates
Forget about giant Redstone logic gates. All logic gates in one block!
SimpleChunks
An easy-to-use chunkloader with a modern GUI, teleport system, and secure permission management — ideal for farms, redstone, and automated systems.
NoRedstone
Disable redstone components in specific worlds
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.
Redstone Counter
Counts redstone components within a chunk, configurable Blocks in Config. Compares against a maximum allowed number.
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.
RedstoneCooldown
Redstone Cooldown adds configurable cooldowns to redstone-related interactions like buttons, levers, pressure plates, trapdoors, fence gates, and cauldrons. Prevent spam, reduce lag, and keep redstone mechanics fair and controlled.
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.
RedOut
Allows players to get server metrics like mspt as a redstone signal from an item frame.
cbgsoptimizasion
so its hella hella powerful plugin needs to optimize your mc server about %20 to %30 percent depending on the player/redstone farms count