Minecraft Java 1.21 Mods
Browse 64 free mods for Minecraft Java 1.21 — popular picks include Carpet Extra, Fabrication, Create: Big Contraptions.
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Carpet Extra
Additional features for the carpet mod
Fabrication
A huge collection of vanilla tweaks and small features. Trident improvements, bugfixes, furnace minecart changes, note block enhancements, old lava, old logo, oh my!
Create: Big Contraptions
Lets you carry and render contraptions with lots of data
Cammie's Minecart Tweaks
Makes Minecarts more viable as a form of transportation.
Create: The Air War
This mod was created for aerial vehicles. The main function of the mod was to add more weapons to air transport so that people could create an air war between different factions and countries
Carry On + Create Aeronautics Compat
Patches Carry On so you can pick up blocks from Create Aeronautics simulated contraptions
Omni-Hopper
Break free from the constraints of normal hoppers. Experience true item transportation freedom.
Audaki Cart Engine: Faster Minecarts / Balanced for Survival / Vanilla Carts Improved
🤩 Fast Minecart! Configurable Speed. Balanced for Vanilla/Survival. 100% glitch-free and compatible with all Redstone. Works high-speed with slopes/inclines/curves. Only vanilla track/carts needed. Can be added and removed at any time
[SUC]Surival Useful Circuit生电全家桶
生电全家桶 An advanced Minecraft survival redstone and automation modpack featuring Carpet and Masa mods.
Modern Minecarts
Copper Rails, chaining minecarts and a lot more! If you want a Minecart Update - This is it.
XenoTech
The vehicle tech mod - driving technology forward
Create: Movable Tracks
An addon that allows train tracks to move with mechanical contraptions, enabling dynamic rail systems, movable bridges, and advanced Create-style train builds.
Create More Seats
Mod that adds two types of modern seats for trains and contraptions.
Create Train
Main about Create and its trains,better player models and the maids,those who like above will definitely want to download it! WARNING:don't let the Maids drive the Trains(or the other Contraptions), there may be unforeseen problems! BUT NOT ONLY THEAE.
AsguhoServer
Simply a really optimized server with the tools you need to build awesome contraptions. This modpack include mods such as carpet, syncmatica etc.

JoaCarpet
A small carpet extension mod with useful features for redstone and storage tech (+some minor survival tweaks)
Dispenser Minecarts
Adds minecarts with dispensers and minecarts with droppers, to enhance your contraptions in a vanilla fashion.
All Of Utility 2
Redstone tech, carpet+addons, exploration, visual, QOL, building tools.
Brecher's Trainers - A Cobblemon Gym Mod
Mod that adds customizeable, Redstone-activated Trainer Spawner blocks for setting up your own Cobblemon Gyms!
BC (Better Cars)
A simple car mod.
CraftBook
CraftBook lets you create magically extending bridges, compact Redstone circuits, complex Minecart mechanics, and much more... — all without a client mod and fully customizable by the server.
Create: Portal Integration
Add portal support to cart contraption, coupled cart, and compatibility with other portal mods.
Simple Orbital Cannons
Circuit & Cartridge is a NeoForge 1.21.1 military simulation framework featuring advanced redstone, drones, orbital weapons, electronic warfare, and a public addon API, built for hardcore SMP and mil-sim servers.
Cogs & Cobblemon
Catch, train, and explore with Cobblemon while harnessing the power of Create to engineer machines and contraptions.
MTGCard
Brings one of the most popular TCG games into Minecraft
Create: Tow & Haul
Towing gear for Create physics vehicles: a redstone winch that reels a real steel rope, tow bars to hook it to, and a coupling that joins two tow bars with a rigid drawbar so you can actually pull a trailer. For Create: Aeronautics / Simulated.
2Gather [Aeronautics]
A Create-focused modpack with advanced redstone logic using More Red, magic through Ars Nouveau and Apotheosis, engineering, automation, airships, exploration, and carefully selected mods for a polished, high-performance experience.
Clean Redstone - rails and minecarts
Gives a clean look to rails and minecarts
Primitive Tech
Oil, industry, vehicles, guns, artillery, all implemented in a non-overcomplicated manner
Enhanced Rails
Enhanced Rails supercharges Minecraft rail systems with lightning-fast speeds, automated minecart loading/unloading, and a no-redstone pushback mechanism.
Cardboard redstone
Makes the redstone stupid but also kinda cool-looking. Surely you can't use it as your main redstone pack (because blocks are more detailed=laggier), but it's cool
Create: Better Contraption Storage
A filterable storage block for Create contraptions and trains — no more wrong items in the wrong place.
Create Unique Card
Add absolute wireless security to Create's Redstone Links. Introduces the "Unique Card" encrypted with a one-of-a-kind UUID to prevent any channel cross-wiring.
Contraptionable Rails
Allows Create tracks to be assembled to Create mod Contraptions such as bearings, trains, and other moving objects.
Find My Blimp
HB's Find My Blimp - set waypoints to Aeronatics Vehicles and Create Contraptions
Auto Chunk Loader Advance
A simple plugin that loads chunks around moving minecarts, redstone signals, observers and working hoppers.