Minecraft Java 1.21 Mods
Browse 512 free mods for Minecraft Java 1.21 — popular picks include Spark Scatter, Magnetization, Create: Redstone Link Tablet.
Updated daily
Spark Scatter
Redstone components release brief particle bursts when activated, creating visual feedback across the server.
Magnetization
A Create: Aeronautics addon adding a full magnetism layer for Sable-driven contraptions: emitters that pull or push ships (electromagnets, anchors, tractor beams, repulsor coils, excavators), permanent and temporary magnets.
Create: Redstone Link Tablet
A smart-home tablet for Create's Redstone Links — toggle named apps and multi-link groups from an app-style GUI.
Digital Home: Private Dimension
A private space in a Pocket Dimension
Create: Lights & Controls
More lights and wireless redstone switches that plug straight into Create's Redstone Link network
Create Frequency
Frequency waves and more!
Create: Capsule Corp.
Capture, store, and redeploy Sable simulated contraptions using capsules.
The Drill
This mod add Drill to game
Expanded Fuels
This is a mod adding some solid fuel sources for machines and furnaces.
Technolith
Refined Redstone Technology That You Can Obtain By Exploring The Past
Advanced Arsenal
Redstone-powered equipment that can be upgraded to suit your playstyle.
AntiRedstoneLag
prevents lag machine in server
Create: Better Frequency
Create addon that lets you set Redstone Link frequencies by renaming frequency items or blocks. Matching now depends on both the item type and its custom name.

Copper Wrenches
Craft copper wrenches to rotate blocks and redstone components
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.
[ARCHIVE] Simple Transport Pads [Forge/NeoForge]
Adds Transport Pads which allow you to set a destination and easily teleport yourself or mobs and items
PowerStones
Overlapping wires of Redstone, Bluestone, Greenstone and Yellowstone
ExtendedItemTransport
additional Hopper, automatic Crafting, extended dropper, Item teleporter
Tracegates
This mod adds logic gates like the ones from Virtual Circuit Board.
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 ! )

Pulsetech
A tech mod based on sending information with pulsed Redstone
Temporal Disjunction
Temporal Disjunction is a Minecraft mod that lets you manipulate time within specific regions — freeze, rewind, accelerate, or slow it — giving you godlike control over the flow of time in your world.
Moar Redstone
The Moar Redstone datapack adds a bunch of new Redstone devices to the game, from wireless Redstone to configurable timers in a single block.
Create: Interval Filter
Adds a filter for deployers on contraptions that places items or blocks at set distance intervals
create aeronautics (update) modpack
(update)A Create modpack with Create Aeronautics, focused on automation, machines and flying contraptions.
Circuitry & Magic
Combines Redstone mechanics with the art of enchantment and adds unique synergy between the realms of magic and technology.
Tanglr
A time-tangling time-travel based redstone mod
Create Aeronautics Addon: Plough & Roll!
An Addon for Create Aeronautics that adds functionality to the Mechanical Plough and Mechanical Roller on Simulated Sable Contraptions.
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.
Create: SatisFactory
Master the art of automation with a high-performance modpack. Featuring Create Aeronautics, this pack transforms your machines into dynamic physical contraptions with real-world momentum and interaction. No bloat, just pure engineering.
自动化时代 AutomationEra
Add multiple advancements about automation farms & redstone machines
Unusual Adventures
🖥️ Program with Computers and explore Digital Landscapes
Redstone Lectern
Optimized for Redstone: with a permanently attached 15 page book, visible page numbers, and click to turn pages
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
Get Creative
Create Addon: Configuration to force players to get creative making contraptions, plus some new content
TrollCraft - Because Who Needs Friends, Anyway?
TrollCraft adds prank blocks like Ghost Blocks you can fall through, Spreading Cobblestone that turns into magma, exploding doors, and more. Perfect for tricking your friends! Chaos guaranteed!