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Minecraft Java 1.21 Mods

Browse 18 free mods for Minecraft Java 1.21 — popular picks include More Security, All Of Utility 2, Arcforge.

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More Security
1.21.1neoforge

More Security

This mod adds some technologies to protect your house.

9.0kdownloads
All Of Utility 2
1.21.11fabric

All Of Utility 2

Redstone tech, carpet+addons, exploration, visual, QOL, building tools.

6.2kdownloads
Arcforge
1.21.1neoforge

Arcforge

Arcforge is a bold modpack blending magic and mechanics, ancient and advanced. Whether mastering magic, engineering redstone, exploring new dimensions, or building grand cities—Arcforge gives you the tools to forge your path.

579downloads
Create: Building Dimension
1.21.1neoforge

Create: Building Dimension

A dedicated creative-mode dimension for testing Sable/Create Aeronautics contraptions in survival — build, light a portal, test freely, and come back with nothing lost.

434downloads
Create: Signalworks
1.21.1neoforge

Create: Signalworks

Create: Signalworks is a small Create addon for building more varied redstone control systems.

184downloads
McCastle's To the Skys!
1.21.1neoforge

McCastle's To the Skys!

Create Aeronautics holds a whole new way to apply amazing physics to your contraptions and world. To the Sky! is a mod pack that is centered around create aeronautics with a few additional mods to add to the experience for us nerds who love to tinker.

155downloads
Peaceful Silverfish
1.21.1neoforge

Peaceful Silverfish

Peaceful Silverfish lets silverfish spawn from vanilla infested stone even on Peaceful. Great for Create farms and contraptions, but works perfect in vanilla too. Includes an option to mute silverfish sounds so your base stays quiet.

151downloads
Actually Additions Mod (1.21.1, 1.12.2) – Build a Wireless Tech Base
1.21.1forge

Actually Additions Mod (1.21.1, 1.12.2) – Build a Wireless Tech Base

Actually Additions Mod adds a large collection of machines, tools, food, and other useful items to Minecraft. This mod introduces an energy system based on Redstone Flux (RF) to power its many gadgets. Instead of using traditional wires, it offers unique ways to transport energy and items, such as special blocks and laser systems. You […]

Reden Mod (1.21.8, 1.20.1) – Ctrl+Z to Redo While Building with Redston
1.21.8fabric

Reden Mod (1.21.8, 1.20.1) – Ctrl+Z to Redo While Building with Redston

Reden Mod makes working with redstone in Minecraft easier and more fun. It introduces an undo and redo feature, allowing players to fix mistakes while building redstone machines by pressing Ctrl+Z. The mod also adds Redstone Version Control (RVC), enabling users to share redstone creations on GitHub and manage them like code. Block selection is […]

Masa Gadget Mod (1.21.5, 1.20.1) – Elevating The Minecraft Experience Further
1.21.5fabric

Masa Gadget Mod (1.21.5, 1.20.1) – Elevating The Minecraft Experience Further

Masa Gadget Mod introduces a powerful all-in-one tool designed to assist players with building, automation, and general gameplay. Whether you're placing blocks, interacting with entities, or streamlining repetitive tasks, this mod provides a flexible and efficient solution. Features: Functions for building, redstone, and automation. Adjust settings to fit your needs. Simplifies complex tasks with intuitive […]

Ranged Pumps Mod (1.21.1, 1.20.1) – Power Your Base with Lava
1.21.1neoforge

Ranged Pumps Mod (1.21.1, 1.20.1) – Power Your Base with Lava

Ranged Pumps Mod adds a special pump to collect large amounts of liquids from a wide area. It can gather water, lava, or even fluids from other mods. The pump uses Forge Energy to run, but you can change this in the settings. It also stops working if it receives a Redstone signal. The machine […]

Solar Flux Reborn Mod (1.21.4, 1.20.1) – Build a Sun-Powered Base
1.21.4forge

Solar Flux Reborn Mod (1.21.4, 1.20.1) – Build a Sun-Powered Base

Solar Flux Reborn Mod adds a series of solar panels to generate Forge Energy (FE) or Redstone Flux (RF) for your machines. This mod provides a simple way to create power that works well with many tech-based modpacks. It comes with eight default tiers of solar panels, each offering more power generation, storage, and transfer […]

Blueprints – Prefabricated Structures Mod (1.21.4, 1.20.1)
1.21.4neoforge

Blueprints – Prefabricated Structures Mod (1.21.4, 1.20.1)

Blueprints – Prefabricated Structures Mod allows you to instantly place pre-built structures into your world without the use of any complicated structures or any other hard-to-understand means. The mod currently offers 39 build blueprints for items like buildings, houses, machines, automatic farms, etc. Furthermore, you will get the ability to import 2500+ custom builds from […]

Create - World in Motion
1.21.11fabric

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.

1.6kdownloads
Security by Kilhaden
1.20.1fabric

Security by Kilhaden

Adds security features to protect your buildings, valuables, and yourself from threats.

1.2kdownloads
Goblinz Create Surival
1.21.1neoforge

Goblinz Create Surival

Create based kitchen sink modpack focused around building automated factories, villages, and moving contraptions.

301downloads
Create Modpack (26.2, 1.21.1) – Build Moving Machines And Fly
1.21.1

Create Modpack (26.2, 1.21.1) – Build Moving Machines And Fly

Create Modpack focuses entirely on building moving machinery and physical contraptions to explore your world. It blends vanilla-friendly decoration with a deep, mechanical power system that rewards creativity. You will need to build real, working vehicles to travel far, making every journey a true engineering project. Features: Rotational Power System: Machines run on physical energy […]

Hexforged Artifices Mod (1.21.1) – Automate Your Base with Glowing Magic
1.21.1

Hexforged Artifices Mod (1.21.1) – Automate Your Base with Glowing Magic

Hexforged Artifices Mod replaces normal pipes and cables with glowing magic energy networks. It adds new ways to move items around your base using floating rings and magic beams. You can build big factory setups that run on special magic power instead of redstone. The mod gives you early-game machines to start your journey and […]