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Minecraft Java 1.21 Mods

Browse 3,320 free mods for Minecraft Java 1.21 — popular picks include Technology Valley, CC: Optical, Light Machine.

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Technology Valley
1.21.1neoforge

Technology Valley

Unusual Technology modpack with Magic & RPG, also with Custom mechanics, many Quests & Changed recipes!

2.4kdownloads
CC: Optical
1.21.1neoforge

CC: Optical

All you need for your turrets!

2.4kdownloads
Light Machine
1.21.5

Light Machine

Automate torching up your world!

2.3kdownloads
Just Enough Skills
1.21.1neoforge

Just Enough Skills

Just Enough Skills enhances gameplay with dynamic abilities like dashing, healing, gliding, and more, offering new ways to explore, fight, and survive. Perfect for adventurers seeking fresh mechanics!

2.3kdownloads
Fair Trade
1.21.1neoforge

Fair Trade

Fair Trade mod adds currencies and other trade utilities, which would be useful for Multiplayer.

2.3kdownloads
Can I sit here?
1.21

Can I sit here?

You can sit everywhere now! Just look down and shift for sit!

2.3kdownloads
Hydraulic Machinery
1.21fabric

Hydraulic Machinery

Turn pistons into industrial machines with hydraulic presses, automation, and configurable vanilla-friendly mechanics.

2.3kdownloads
Doctor Doom Mod
1.21.5

Doctor Doom Mod

A mod/datapack that adds Doctor Doom's Abilities and Equipment into the game.

2.3kdownloads
Custom Areas
1.21.1fabric

Custom Areas

Take full control of your server! Custom Areas is a powerful, server-side mod that lets you create and manage protected zones through an intuitive, 100% GUI-based interface. Define granular rules with a powerful flag system, restrict area access wit

2.3kdownloads
FNAF Dreams and Nightmares (Work Game)
1.21.4

FNAF Dreams and Nightmares (Work Game)

Mod will recreate the creepy atmosphere of FNaF 4

2.3kdownloads
Bedrock Mods
1.21.8neoforge

Bedrock Mods

This mod, which has never been seen before in Minecraft, shows how to produce bedrock., Thanks to mod, tools and equipment can be made from bedrock.

2.3kdownloads
Networks Terminals
1.21.4

Networks Terminals

A central ME-like UI to access all items in your storage system easily

2.3kdownloads
PackTimer
1.21.11

PackTimer

Timer with many features and an simple interface I will add more features to it soon™

2.2kdownloads
GoldFarmFix DataPack
1.21.5

GoldFarmFix DataPack

Bring back the old (pre 1.21.5) Zombified Piglin death behaviour, re-enabling exp and rare drops when killed by the environment while aggroed

2.2kdownloads
Clutch
1.21.11fabric

Clutch

In some cases a clutch will be impossible. This mod shows whether a clutch is doable and how difficult it will be, alongside many other clutching utilities.

2.2kdownloads
Replant+
1.21fabric

Replant+

A lightweight and server-friendly mod that automatically replants crops the moment you harvest them.

2.2kdownloads
Command alias maker
1.20.1fabric

Command alias maker

Allows you to create command aliases in game through a simple command and lets you run them instantly.

2.2kdownloads
uTimber
1.16

uTimber

Knock down whole tree with breaking one log.

2.2kdownloads
NoMaceEnchant
1.21

NoMaceEnchant

❌ Blocks the Enchantments of the Mace

2.2kdownloads
Finetunned Weaponry
1.21.1neoforge

Finetunned Weaponry

This mod offers ALOT of new Items with unique effects

2.2kdownloads
FortressCore
1.21

FortressCore

FortressCore is a comprehensive Minecraft server security plugin featuring AI-powered threat analysis,login/registration,anti-impersonation,IP scanning,automated chat moderation,watchlist monitoring,and advanced tools including bans,appeals,and audit log.

2.2kdownloads
Zen's Agricultural Automations
1.21.5

Zen's Agricultural Automations

Automate Tree/Flower/Shrub farming

2.2kdownloads
More Biome Coloured Blocks
1.21.11fabric

More Biome Coloured Blocks

Moss, Azaleas and more made biome coloured!

2.2kdownloads
ChallengeTimer
1.21.11fabric

ChallengeTimer

an advanced timer/stopwatch for challenges etc

2.2kdownloads
Customizable Dragon AI
1.20.3

Customizable Dragon AI

Useful Datapack to customize the Ender Dragon's AI

2.2kdownloads
Create Aeronautics Addon: Plough & Roll!
1.21.1neoforge

Create Aeronautics Addon: Plough & Roll!

An Addon for Create Aeronautics that adds functionality to the Mechanical Plough and Mechanical Roller on Simulated Sable Contraptions.

2.2kdownloads
Hyper Login
1.21.11

Hyper Login

A simple yet powerful data pack that allows every player to protect their account with a password.

2.2kdownloads
Create: quartz recipe
1.18.2fabric

Create: quartz recipe

Adds a 2-step, fully automatable Create mixing recipe for Nether Quartz via Calcite! Worried about automating Bone Meal? Don't be! Just route excess crops or seeds from your mechanical farms into a Composter. 100% Nether-free Quartz production!

2.2kdownloads
Vanilla Replays
1.21.11-pre1

Vanilla Replays

Record & Playback system in vanilla Minecraft!

2.2kdownloads
Water Regeneration
1.21

Water Regeneration

Gives regeneration while you are in water.

2.2kdownloads
Create: Enhanced Totem Productions
1.16fabric

Create: Enhanced Totem Productions

Renewable totems of undying, so you can cheat death with confidence!

2.2kdownloads
BlockShips
1.21

BlockShips

build ships or airships out of blocks and sail or fly them smoothly - without client side mods or resource packs! Uses display entities to allow non-grid-aligned blocks

2.2kdownloads
server optimiser
1.19

server optimiser

a server optimiser plugin that offloads your server reducing ram when not in use

2.2kdownloads
DonutPlus
1.21.1fabric

DonutPlus

Makes DonutSMP better styled tab/scoreboard/chat, custom menus, and a full in-game config editor. active on DonutSMP.

2.2kdownloads
Profitable
1.20

Profitable

Dynamic economy with real supply and demand by using an exchange system!

2.2kdownloads
Silky Hands
1.21.2fabric

Silky Hands

A minecraft mod that makes a specified player (or players) drop any blocks that they break!

2.1kdownloads