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Minecraft Java 1.21 Mods

Browse 111 free mods for Minecraft Java 1.21 — popular picks include V's Lucky Block Engine, FakeBan, Lapata Purge.

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V's Lucky Block Engine
1.21.10

V's Lucky Block Engine

A Command driven Lucky block engine for 1.21.10

177downloads
FakeBan
1.21.8fabric

FakeBan

A lightweight mod that allows you to simulate being banned from a server. Simply press a key (default is J) to trigger the ban message and return to the main menu. To use the mod you need to have installed Fabric API.

173downloads
Lapata Purge
1.21.11

Lapata Purge

A Minecraft Spigot plugin that starts a timed ritual when a player head is placed on bedrock, showing a floating hologram countdown with particles. When the timer ends, it creates a big explosion with totem effects and removes the head automatically.

170downloads
CasterOS
1.21

CasterOS

CasterOS is a cross-platform Minecraft magic plugin for Paper and Sponge servers. It features immersive spell casting, dynamic magic mode, and easy spell management with YAML files—making it simple to customize and expand your server’s magical experience.

170downloads
MaidTelepathic & Ragdoll
1.21.1neoforge

MaidTelepathic & Ragdoll

A mod that integrates TelepathicMaid with the Maid Ragdoll Library.

168downloads
Projection Boundary
1.21

Projection Boundary

Why use a boring invisible wall when you can turn the world border into a glitching, collapsing simulation?

162downloads
PackWiz-ard
1.21.1fabric

PackWiz-ard

Load and update your server PackWiz modpack with ease

150downloads
ADKM
1.21.1neoforge

ADKM

Defeat a powerful, giant boss roaming your world to claim his legendary Scythe with +16 Attack Damage! A high-risk, high-reward challenge. (Requires GeckoLib)

144downloads
Extra Item Properties
1.21.4fabric

Extra Item Properties

Adds new item properties for resource pack makers

141downloads
Hero's Lib
1.21.1neoforge

Hero's Lib

A library for a couple mods made by Herobrot.

114downloads
Early Tags
1.21.1fabric

Early Tags

Inspect tags and other data WAY before it should be available.

101downloads
LightChatWelcomer
1.11

LightChatWelcomer

Simple spigot plugin to display custom join messages

95downloads
GLB lib
1.21.11fabric

GLB lib

A library mod that allows for glb 3d models to be used for minecraft entities

91downloads
Decraftable
1.21.8neoforge

Decraftable

lets you decraft items for your resources back.

88downloads
Panoramic Backround
1.21.11fabric

Panoramic Backround

The ability to take a screenshot in game and easily set it as your backround.

82downloads
Craftable Uncraftables And More!
1.21.4neoforge

Craftable Uncraftables And More!

This mod adds all the uncraftable thing to minecraft and a few extra things.

72downloads
LibraryCube
1.21

LibraryCube

LibraryCube is a Minecraft plugin that generates an infinite, explorable library of unique chambers, each filled with deterministically arranged blocks based on a specific address.

70downloads
Earwax
1.21.11fabric

Earwax

EarWaxers is a silly Fabric mod where pressing P on a stick or blaze rod “cleans” your ear and leaves edible earwax on the tip (hurting you in the process, and lighting you on fire if it’s a blaze rod). Cook that wax through burnt, crispy, very crispy, a

69downloads
twinkle popo mod
1.21.4neoforge

twinkle popo mod

it adds twinkle popo realistic pikachu and realistic hellokity

63downloads
Ultimate Step
1.21

Ultimate Step

UltimateStep is an all-in-one Paper server management plugin featuring a powerful rank system, configurable scoreboard, customizable tablist, and complete punishment tools including warn, mute, ban, kick, unmute, and unban. Lightweight, modern, and easy

61downloads
last hit saver
1.21.1neoforge

last hit saver

When death is certain… will you run, or will you fight?

51downloads
Player Mutations
1.21

Player Mutations

A behavioral evolution system that mutates players based on their playstyle. Every cycle (default 3 days), the plugin analyzes player behavior and triggers mutations that fundamentally change how they play.

49downloads
Loom
1.21

Loom

Install and configure every plugin from one web panel.

38downloads
Narrativa
1.21.11

Narrativa

A dialogue engine for Minecraft.

37downloads
Proprietary Teams Bridge
1.21.1neoforge

Proprietary Teams Bridge

Mod to bridge Priopetary Teams mod to FOSS alteanatives

34downloads
Custom Collision Box
1.21.2

Custom Collision Box

A datapack library that can create custom collision/interaction box with management.

18downloads
ViaSlidy
1.21.4fabric

ViaSlidy

This mod allows you to quickly change your minecraft version via slider ingame!

8downloads
Aura Nexuses
1.21.11

Aura Nexuses

Grant abilites based on large-scale constructions. Grant permissions dynamically.

8downloads
Wolfhound Fairy Resource Pack (1.21.1, 1.20.1) – Texture Pack
1.21.1

Wolfhound Fairy Resource Pack (1.21.1, 1.20.1) – Texture Pack

Woflhound Fairy Resource Pack for Minecraft will satisfy your needs of seeing will-o-wisps in the forest. Does the name Tuatha De Danann means anything to you? Do you understand that the fairies were really scary bastards and not to be messed with under any circumstances? IF not, then you need to get to a library […]

R
1.21.2

Reactify

Compatibility library for Brutal Nightmare

49kdownloads
M
rd-132211fabric

Mod Remapping API

Remaps non-Fabric mods at runtime with hooks available to expand it.

18kdownloads
V
1.13

Version Detector

An API for datapacks to detect your Minecraft Version

3.9kdownloads
C
1.21.1fabric

Crimes Against the JVM

Execute arbitrary bytecode (client-only!) from books you wrote. Because funny. Now compatible with Sinytra Connector & Forgified Fabric API!

2.6kdownloads
Q
1.21.1neoforge

QuickWhisper

A terrifying Minecraft horror mod made on NeoForge that adds procedural jumpscares, creepy ambient sounds, and an immersive custom glitch menu.

630downloads
C
1.14fabric

Conditional Proxy Mod Initializers

A simple library for running a proxy Fabric initializer if a required mod exists

552downloads
A
1.21.1neoforge

AgriCraft Create Compat

Adds harvester support for AgriCraft crops and integrates Create automation with AgriCraft's crop progression and weed mechanics

308downloads