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Minecraft Java 1.21 Mods

Browse 3,322 free mods for Minecraft Java 1.21 — popular picks include BattleRoyalePlugin, AntiCrystal-Anchor, Entity Inventory See.

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BattleRoyalePlugin
1.21

BattleRoyalePlugin

A fully automated Battle Royale plugin featuring dynamic teams, shrinking borders, and a built-in economy. Includes automatic world resets and multi-language support for a seamless competitive experience.

1.1kdownloads
AntiCrystal-Anchor
1.21

AntiCrystal-Anchor

AntiCrystal-Anchor is a Plugin that prevents Players to craft & use Crystals and Anchors.

1.0kdownloads
Entity Inventory See
1.16

Entity Inventory See

Open the inventory of entities

1.0kdownloads
OreOverlay
1.21.11fabric

OreOverlay

Client-side Fabric mod for 1.21.11 that predicts nearby ore locations from the world seed and renders colored markers through terrain, hiding them as you mine.

1.0kdownloads
Fly
1.16

Fly

Toggle flying mode on or off with ease.

1.0kdownloads
Create : Beyond Limits
1.21.1neoforge

Create : Beyond Limits

A Create Addon made By Axell_2D

1.0kdownloads
TurboWarp SMP
1.21.1neoforge

TurboWarp SMP

Create-centered technology and automation modpack, adding tons of industrial and mechanical blocks, new frontiers, explosives, and weaponry

1.0kdownloads
MobPVP // CANCELLED
1.21fabric

MobPVP // CANCELLED

MobPVP transforms your Minecraft survival experience by assigning levels to every living creature in the game. Based on these levels, mobs gain different abilities, attributes, and loot chances, creating a more challenging and rewarding combat system.

1.0kdownloads
Quacky's Better Keybinds
1.21.11fabric

Quacky's Better Keybinds

Want to double bind without trouble? Want to just have several keys mapped to 1 slot since why not? Heres the mod for you! Maybe banned from pvp servers.

1.0kdownloads
Uncraftables Plus
1.21.2

Uncraftables Plus

Make the Uncraftable, Craftable!

1.0kdownloads
CobbleGen Alehouse
1.21.8fabric

CobbleGen Alehouse

9 tiers of highly optimized Cobblestone Generators. From Stone to Nether Star.

1.0kdownloads
Create Redstone Link Essentials (CRLE)
1.21.1neoforge

Create Redstone Link Essentials (CRLE)

This project adds some functions to redstone links from the create mod as : The items in links need to have the exact item data(tags, name, minecraft item id) to activate other linked controllers with the frequency. it also adds ID items

1.0kdownloads
Tenbees crystal optimizer
1.21.10fabric

Tenbees crystal optimizer

A lightweight Fabric mod that optimizes Crystal PvP for smoother, faster, and more responsive gameplay. Featuring intelligent packet optimization, client-side prediction, and customizable settings to enhance your PvP experience.

1.0kdownloads
Reapers & Ghosts
1.21.1neoforge

Reapers & Ghosts

Adds the Violent Crystalline Corruption and its various Deadly Entity's to Minecraft

1.0kdownloads
LightItemCooldown
1.17

LightItemCooldown

Cooldown added to items: Shield, Bow, Crossbow, Trident, Riptide Trident, Ender Pearl, Golden Apple,

1.0kdownloads
Create: Smoke Stacks - Lite
1.21.1neoforge

Create: Smoke Stacks - Lite

If you've built a steam boiler in Create to drive engines, this mod makes it look and feel like a real, working piece of industrial machinery: smoke rises from it while it's running, just like a real boiler or chimney would.

1.0kdownloads
The Ultimate Create Experience For Builders
1.21.1forge

The Ultimate Create Experience For Builders

Dive into the ultimate Create Modpack, featuring addons that expand mechanical possibilities for building, automating, and innovating in both Survival and Creative modes.

1.0kdownloads
ChunkVeil
1.21

ChunkVeil

Anti-xray, anti-ESP, and freecam protection for underground chunks on Paper servers.

1.0kdownloads
Heart Canisters
1.21.5

Heart Canisters

Introduces two tiers of pricey canisters that increase your health when carried.

1.0kdownloads
Spells and Orbital Strike Cannons
1.21.11fabric

Spells and Orbital Strike Cannons

An extension of the orbital strike cannon Datapack, SaSC is a brand new Datapack that adds magical features from many pieces of media.

1.0kdownloads
BetterCoords
1.21

BetterCoords

Adds a coordinate info above the item bar

1.0kdownloads
EverythingInOne
1.21.1neoforge

EverythingInOne

This mod has a lot of different and weird stuff ranging from tools, armor, machines, ore, and more!

1.0kdownloads
Advancement Rewards
1.18

Advancement Rewards

A plugin that rewards players with Vault economy money when they complete advancements.

1.0kdownloads
LagShield Ultimate (Anti Lag)
1.21.1neoforge

LagShield Ultimate (Anti Lag)

The intelligent performance modulator for Minecraft Server. LagShield Ultimate uses Arclight-safe async processing to dynamically regulate mob AI, chunk density, and entity speed based on real-time server stress (MSPT). Stops lag before it happens.

1.0kdownloads
Core Companion
1.21.11fabric

Core Companion

An owner-bound AI companion that chats, remembers, builds a relationship, and runs survival tasks with Baritone path finding — local or cloud AI, optional voice and vision.

1.0kdownloads
Create: Power Grid: Portable Battery Fix
1.21.1neoforge

Create: Power Grid: Portable Battery Fix

Fixes various issues with the Create: Power Grid Portable Battery

1.0kdownloads
Auto apply crafter Pattern
1.21fabric

Auto apply crafter Pattern

This mod adds the ability to auto apply Crafter slot patterns to every Crafter you right click. I have come up with the idea to be able to "automate the clicking you have to do on each Crafter. Hotkey is changable default is P

1.0kdownloads
Command Master
1.21fabric

Command Master

Command additions, command wands, mineable et posable command block like machine, utilities...

1.0kdownloads
Claudecraft
1.21.1neoforge

Claudecraft

A Minecraft Forge mod that brings Claude AI into CC: Tweaked computers and turtles. Players interact with Claude through an in-game terminal - ask questions, run tools, automate tasks, and control turtles using natural language.

992downloads
Verticality
1.21.1fabric

Verticality

Verticality is a high-octane Minecraft mod that revolutionizes movement through the addition of a functional, physics-based grappling hook and specialized wall-climbing gear.

992downloads
Othertime
1.21.1neoforge

Othertime

Adding modern, industrial, and futuristic content to Minecraft!

991downloads
STAR WARS: Project The Force {SWPTF}
1.21.1fabric

STAR WARS: Project The Force {SWPTF}

A project that will completely immerse you in a Galaxy far, far away;)

984downloads
Shadow Player
1.21.5fabric

Shadow Player

Keep your server players active 24/7 on your server, even when they log out.

984downloads
ParkourPro Lite | Create Awesome Parkours in Minutes
1.8

ParkourPro Lite | Create Awesome Parkours in Minutes

Create customizable Minecraft parkours with checkpoints, holograms, leaderboards, records and anti-cheat support.

982downloads
Luna's Structure Compass
1.21.6

Luna's Structure Compass

This data-pack adds a structure compass that can go to any structure in the game!

981downloads
Strings Moderation
1.16

Strings Moderation

An expansion for the Strings chat formatting/customization plugin that offers additional moderation features like chat cooldowns, filtering and more.

980downloads