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Minecraft Java 1.21 Mods

Browse 37 free mods for Minecraft Java 1.21 — popular picks include Advanced Peripherals, Easy Piglins, More Useful Copper - MAJOR UPDATE 3.0!.

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Advanced Peripherals
1.21.1neoforge

Advanced Peripherals

A Peripheral addon mod for modern CC: Tweaked. You can communicate with Refined Storage, Applied Energistics2 or with the whole Minecraft world. Adds things like the Me Bridge, Rs Bridge, the Chat Box and more.

48Mdownloads
Easy Piglins
1.21.11neoforge

Easy Piglins

Never get annoyed by bartering anymore!

16Mdownloads
More Useful Copper - MAJOR UPDATE 3.0!
1.21neoforge

More Useful Copper - MAJOR UPDATE 3.0!

New uses for copper, such as statues, aquatic redstone, and many other tools!

3.8Mdownloads
Smelt All Stone Blocks in Blast Furnaces [Fabric/Forge/NeoForge]
1.21.11neoforge

Smelt All Stone Blocks in Blast Furnaces [Fabric/Forge/NeoForge]

Blast all types of stone including Netherrack or Quartz, fully configurable

636kdownloads
Tiny Mob Farm Remastered
1.21.11neoforge

Tiny Mob Farm Remastered

Single-block size mob farms that makes mob farming neater and easier.

369kdownloads
Bacteriums
1.21.11neoforge

Bacteriums

Bacterium Mod For Fabric and Forge

46kdownloads
Create - Creafable Redstone
1.21.1neoforge

Create - Creafable Redstone

This makes redstone craftable and can be used to automate a redstone farm in Minecraft Create 6.0

37kdownloads
Create: Enhanced Iron Processing
1.16

Create: Enhanced Iron Processing

This is a datapack that adds a custom mixing recipe to produce crimsite renewably to enhance your iron and redstone farms.

8.4kdownloads
TFCtrough
1.21.1neoforge

TFCtrough

A simple animal feeding trough mod for TerraFirmaCraft.

6.3kdownloads
自动化时代 AutomationEra
1.21.11fabric

自动化时代 AutomationEra

Add multiple advancements about automation farms & redstone machines

2.6kdownloads
Mob Dispencers 🐸
1.21.8fabric

Mob Dispencers 🐸

Expand Mob Farming With Mob Dispencers. Redstone Ready? (77 Mob Dispencers)

1.7kdownloads
Cobblestone Generator Tweak
1.21.1neoforge

Cobblestone Generator Tweak

Tweaks the vanilla cobblestone generator to produce multiple stone variants (fully datapack-driven)

1.6kdownloads
ExtendedDispenser
1.21.11neoforge

ExtendedDispenser

additional Dispenser

1.2kdownloads
Hopper Upper
1.21.11fabric

Hopper Upper

Enables hoppers to be placed pointing up (no extra item/recipe)

1.2kdownloads
Mar Mar's Crops Growth Detector
1.21.1neoforge

Mar Mar's Crops Growth Detector

Enhance your farms with the new crops growth detector, a machine that outputs a redstone signal depending on the crops age.

707downloads
Crafty Hands
1.21.1neoforge

Crafty Hands

Craft Right and Left Gloves and place them in Dispensers to simulate right and left clicks.

628downloads
Saccharine Leaves Fix Cobblemon
1.21.1fabric

Saccharine Leaves Fix Cobblemon

This mod tends to fix the issue where Observers don't detect the leaves state changing and also fix dispensers not being able to use bottles on the leaves to get honey. Which when it does gather honey it spits it out rather than keeping it in the Dispenser

582downloads
ProxyPlayer
1.21

ProxyPlayer

Powerful player simulation for Paper 1.21.11. Spawn persistent proxies to load chunks, run farms, and test redstone without extra accounts.

233downloads
Crops growth detector
1.21neoforge

Crops growth detector

Enhance your farms with the new crops growth detector, a machine that outputs a redstone signal depending on the crops age.

228downloads
SimpleChunks
1.21

SimpleChunks

An easy-to-use chunkloader with a modern GUI, teleport system, and secure permission management — ideal for farms, redstone, and automated systems.

174downloads
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
Protect My Redstone
1.21.11fabric

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.

58downloads
SovaAntiLag
1.20.6

SovaAntiLag

Heuristic anti-lag against redstone lag machines — without breaking legit farms.

22downloads
Carpet Mod (1.21.11, 1.20.1) – Game Performance Monitoring
1.21.11fabric

Carpet Mod (1.21.11, 1.20.1) – Game Performance Monitoring

Carpet Mod is a popular modification for Minecraft that enhances the game by providing advanced tools for monitoring, controlling, and optimizing gameplay. It is particularly favored by technical players and server administrators. It provides many tools, commands and special capabilities that extend vanilla Minecraft-especially useful for technical players, redstone engineers, farms, and automation. Features: Tools […]

Industrial Foregoing Mod (1.21.1, 1.20.1) – Automate Every Single Task
1.21.1forge

Industrial Foregoing Mod (1.21.1, 1.20.1) – Automate Every Single Task

Industrial Foregoing Mod adds a large collection of machines to help automate your Minecraft world. It is a modern version of the classic MineFactory Reloaded mod, bringing tools for farming, resource processing, energy generation, and more. Most machines need power to work, and they can use common energy types like Redstone Flux (RF) and Forge […]

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 […]

Literally Chunk Loader Mod (1.21.4, 1.20.1) – Simplifying Minecraft Automation
1.21.4fabric

Literally Chunk Loader Mod (1.21.4, 1.20.1) – Simplifying Minecraft Automation

Literally Chunk Loader Mod ensures that specific chunks stay active even when you are far away, allowing processes like redstone mechanisms and mob farms to continue functioning. Features: Vanilla Friendly: Seamlessly integrates with the vanilla Minecraft experience. Simplicity: Easy to use with no complex setups. Just place a block in the desired chunk. Utility: Keeps […]

Purple Stone Mod (1.21.1, 1.20.1) – Turns Redstone Dust Purple
1.21.1fabric

Purple Stone Mod (1.21.1, 1.20.1) – Turns Redstone Dust Purple

Redstone engineering is one of the most useful aspects of the game. By mining redstone ore, you obtain redstone dust, which can be used to craft a variety of different mechanical blocks. Using these, you can build anything from simple farms to large scale computers that run within Minecraft. Purple Stone Mod brings a fun little […]

Blue Power Mod (1.21.1, 1.20.1) – Master Logic & Automation
1.21.1neoforge

Blue Power Mod (1.21.1, 1.20.1) – Master Logic & Automation

Blue Power Mod adds new ways to move blocks and Redstone signals around your world. This tech mod brings back the classic feeling of older mods, focusing on automation and logic. Features: Adds Project Tables, new lamps, crops, and tools. Generate new world features, including large volcanoes. Use an Alloy Furnace to create new metals. […]

G
1.21.8neoforge

Growth Accelerator

This mod adds a block that can bonemeal the crops in a 3*3 area if placed under the farmland. Growth Accelerator must be powered by redstone.

76downloads
N
1.21.1fabric

Nexus Reds Addon

A redstone and automation mod featuring a smart crop planter, sequential hoppers, and range upgrades to streamline your vanilla farms.

73downloads
The Copper Golem!
1.21.1neoforge

The Copper Golem!

A minecraft mod that adds a brand new mob from the mob vote: The Copper Golem! Just like it was presented in the show, this mob will randomly press copper buttons, that has been added to the game too|

6.5kdownloads
AutoSapling
1.21.11neoforge

AutoSapling

Automatically plants saplings dispensed onto valid soil blocks.

1.2kdownloads
Flamerax's Mechanics (Breaker, Placer, etc)
1.21.1neoforge

Flamerax's Mechanics (Breaker, Placer, etc)

Improves automations with simple utility blocks.

554downloads
String Duper Restorer Mod (26.2, 1.21.1) – Build Infinite String Farms Without
1.21.1

String Duper Restorer Mod (26.2, 1.21.1) – Build Infinite String Farms Without

String Duper Restorer Mod brings back a popular game mechanic for newer updates. It removes the recent patches that stopped string duplication machines from working, so you can build your infinite string farms again. The mod lets you keep your old redstone designs running without worrying about the new restrictions. Features: Brings Back Duplication: Reverses […]

Mystical Automation Mod (26.1.2, 1.21.1) – Automate Magical Crop Farms Without
1.21.1

Mystical Automation Mod (26.1.2, 1.21.1) – Automate Magical Crop Farms Without

Mystical Automation Mod adds new automation machines for Mystical Agriculture. It gives you special blocks that handle the hard work of growing, harvesting, and crafting magical crops. You no longer need to build complicated redstone machines to collect your essences. This mod does all the heavy lifting in just a few simple blocks so you […]