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Minecraft Java 1.21 Mods

Browse 139 free mods for Minecraft Java 1.21 — popular picks include LagFixer, Curtain, Lightning Grim Anticheat.

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LagFixer
1.20

LagFixer

⚡️ Best Performance Solution! 🗄️Trusted by 3000+ servers! ✅ Lightweight and highly Asynchronous!

303kdownloads
Curtain
1.21neoforge

Curtain

A Forge mod like fabric-carpet

256kdownloads
Lightning Grim Anticheat
1.16.1fabric

Lightning Grim Anticheat

Anticheat Perfected | 3.0005 reach | 99.999% antikb. Fork of GrimAC that's faster, with better reach checks, interact checks, and numerous bug fixes.

143kdownloads
Texture Pack Folders (Like Recursive Resources)
1.21.8fabric

Texture Pack Folders (Like Recursive Resources)

Mod allows folders with packs in them to work, mainly for organization. (Like recursive resources)

140kdownloads
Item Components
1.21.2fabric

Item Components

Change the default components for items! Server-side and data-driven, refreshes on /reload! (and does it properly)

81kdownloads
datapack function library
1.13

datapack function library

This data pack provides developers with some useful functions and is compatible with all versions of Minecraft (except for those versions where data packs cannot be installed).

38kdownloads
Create: Dimension, Steamworks Realm
1.21.1neoforge

Create: Dimension, Steamworks Realm

Create: Dimension, Steamworks Realm introduces a brand-new mining-focused dimension, designed for automation and large-scale resource extraction. This world is filled with rich veins of ores

25kdownloads
Lusk
1.20.6

Lusk

Modern, user-friendly skript addon, perfect for beginners and experienced developers.

16kdownloads
PlayerProgress
1.16

PlayerProgress

PlayerProgress is a Minecraft datapack that introduces a leveling system. Earn UP from activities like mining and combat to level up and gain new abilities and rewards.

16kdownloads
World Loading Tweaker
1.21.5

World Loading Tweaker

Allows you to change the spawn chunk radius of Minecraft, either speeding up loading or improving spawn quality

14kdownloads
FastXP+
1.21.11fabric

FastXP+

A simple client-side optimization mod that allows you to throw XP bottles instantly and fast by just holding down the right-click.

12kdownloads
CommandBridge
1.20

CommandBridge

Connect all your servers together and bridge commands across your entire Minecraft network.

8.4kdownloads
MC-Reality Mod
1.21.4

MC-Reality Mod

this is a mod for Minecraft that seeks to transform the game experience into something closer to real life. It includes elements such as needs management (hunger, health, energy), an economy system, work, and the ability to interact with other player

6.7kdownloads
LeafRTP | Random Teleport
1.21fabric

LeafRTP | Random Teleport

Fast Random Teleportation for everyone, configurable and extensible

6.4kdownloads
CobbleTypes Master
1.21.1fabric

CobbleTypes Master

The Ultimate Pokemon Type Utilities in minecraft and cobblemon! Type Chart, Team analysis, Scanning and much more!

6.3kdownloads
Lite2Edit
1.21.9fabric

Lite2Edit

Lite2Edit is a small Fabric mod that lets WorldEdit open Litematica schematic files (.litematic).

5.9kdownloads
EnhancedVelocity
1.8.5

EnhancedVelocity

Customize your Velocity network experience

5.6kdownloads
RandomDirtDrops
1.21

RandomDirtDrops

RandomDirtDrops is a fun Minecraft data pack that makes breaking dirt blocks drop completely random items from the entire game — from diamonds to dragon eggs! Perfect for chaotic survival challenges and OP item speedruns.

5.0kdownloads
Protect
1.21.4

Protect

A WorldGuard-like, modern world protection plugin made for API usage

5.0kdownloads
EternalCore
1.19.3

EternalCore

EternalCore is a modern, actively maintained alternative to EssentialsX. It provides the most important server features in one plugin, with better configuration, performance, and support for the latest Minecraft versions.

4.0kdownloads
anti chest esp donut smp
1.19

anti chest esp donut smp

DonutAntiChestESP Advanced Chest Visibility Protection for Minecraft Servers

3.7kdownloads
Inv Tweaker
1.21.6fabric

Inv Tweaker

Inventory sorting and grouping mod, also has auto fill for the hotbar

3.7kdownloads
PerWorlds
1.21.11

PerWorlds

A plugin that allows you to store player data per world

3.2kdownloads
Villager Job Tools
1.21.10fabric

Villager Job Tools

Client-only. Reroll any villager's trades (break/place their job site block) until wanted offers appear. Trades Finder, Auto Buy, Auto Sell. Keybinds: K = menu, R = start/stop.

2.9kdownloads
SkHttp
1.13

SkHttp

skript addon for http

2.8kdownloads
Redstone Additions
1.21.9

Redstone Additions

Best redstone&tech datapack, Super optimized, 55+ blocks (Block breaker, block placer, filters, conveyors, item pipes, breeder, generators, gates, chunk loader, wireless redstone, multiblocks, jetpacks and so much more ! )

2.8kdownloads
ZonePractice Pro Duels
1.21.11

ZonePractice Pro Duels

Elevate your server with the ultimate high performance Minecraft Modern PvP practice core plugin for playing duels.

2.5kdownloads
Hopplet (Hopper Filters)
1.21.8

Hopplet (Hopper Filters)

Expressive hopper filtering, written as plain text. The most powerful plugin in this domain. Filter by any item property. Extendable via a strong developer API.

2.4kdownloads
PySpigot
1.16

PySpigot

A Python scripting engine (plugin) for Minecraft servers running Bukkit or one of its forks (Spigot, Paper, etc.).

2.4kdownloads
Replant+
1.21fabric

Replant+

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

2.2kdownloads
Customizable Dragon AI
1.20.3

Customizable Dragon AI

Useful Datapack to customize the Ender Dragon's AI

2.2kdownloads
OpenJavascript
1.18

OpenJavascript

Create custom menus, commands, plugins, systems, basically anything with scripts in Javascript! With multithreading and Folia support! Everything is fully documented in the documentation!

2.1kdownloads
ManualTotem
1.21fabric

ManualTotem

A simple mod that helps with manual totem placement by automatically moving your cursor to a totem when you open your inventory.

2.0kdownloads
Draventh Ores
1.21.8fabric

Draventh Ores

⚒ Advanced Tier Ores & Equipment This mod expands Minecraft’s survival progression by introducing 15 new late-game materials, each with full armor and tool sets. The goal of this mod is simple: Extend progression beyond Diamond and Netherite with a struc

1.8kdownloads
More Villages Datapack
1.21

More Villages Datapack

Adds more villages to the game.

1.6kdownloads
JSCore
1.21.10fabric

JSCore

Extend your game with JavaScript, create and publish commands, menus, toggles and much more!

1.5kdownloads