HomeJava1.21

Minecraft Java 1.21 Mods

Browse 114 free mods for Minecraft Java 1.21 — popular picks include Cyclops Core, Translucency Fix, Berezka API for Horror Elements mod.

Updated daily

FiltersHorror×Library×Clear all
Sort114 mods
Cyclops Core
1.21.1forge

Cyclops Core

Library mod for EvilCraft, Integrated Dynamics and others.

155Mdownloads
Translucency Fix
1.21neoforge

Translucency Fix

Because Mojang doesn't want to

1.2Mdownloads
Berezka API for Horror Elements mod
1.20.1forge

Berezka API for Horror Elements mod

This mod adds config to Horror Elements mod mod

415kdownloads
CICADA Cape Fix
1.16fabric

CICADA Cape Fix

Removes the ugly 'pls update cicada' cape from older versions of CICADA

283kdownloads
Curtain
1.21neoforge

Curtain

A Forge mod like fabric-carpet

256kdownloads
Kilt
1.21.1fabric

Kilt

Allows the loading of (Neo)Forge mods in the Fabric ecosystem. Very experimental.

217kdownloads
BTWR: Shared Library
1.21.1fabric

BTWR: Shared Library

A library mod for the "Better Than Wolves: Remastered!" project.

135kdownloads
ExecutableItems
1.12

ExecutableItems

Custom Items, ExecutableItems plugin allows you to fully customize every aspect of your items, and adding unique activators on your items !

130kdownloads
Nightmare's Tensura Utils
1.21.1neoforge

Nightmare's Tensura Utils

This is a library mod filled with utils for addon devs to use for the Tensura Mod.

96kdownloads
Goop
1.21.5fabric

Goop

Adds Slime and Splatter Visual Effects to Minecraft

85kdownloads
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
Hollow Realms
1.21.1fabric

Hollow Realms

Hollow Realms is a horror mod that plunges players into a twisted, decaying dimension where unsettling creatures, eerie mysteries, and a constant sense of dread lurk around every corner.

67kdownloads
Piglin Conservatory v3.0
1.21.11fabric

Piglin Conservatory v3.0

Adds a news structure to the Nether, The Piglin Conservatory, along with a new Obsidian Apple, Dragon Fruit, Toxic Mushrooms, Hoglins' Fossils, Corrupted Emerald and a New Music Discs!

45kdownloads
DreamMasaAddition
1.21.3fabric

DreamMasaAddition

An add-on mod for Masa's mods, Tweakeroo, etc.

41kdownloads
ViaAprilFools
1.8.8fabric

ViaAprilFools

ViaVersion addon to add support for some notable Minecraft snapshots.

28kdownloads
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
*NEW* VM computers
1.21.1fabric

*NEW* VM computers

This project adds working computers as virtual machines in Minecraft, this is a fan made port of original VM computers by Delta2Force

23kdownloads
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
Brutal Nightmare Config Integration
1.21.8neoforge

Brutal Nightmare Config Integration

Add global config menu for Brutal Nightmare

13kdownloads
VS Unofficial Neoforge Port
1.21.1neoforge

VS Unofficial Neoforge Port

An unofficial NeoForge port of the Valkyrien Skies 2 physics engine to Minecraft 1.21.1.

10kdownloads
Item Commander
1.21fabric

Item Commander

A simple Serverside Fabric mod that allows you to assign commands to Item(Stacks)

7.2kdownloads
Mob AI Commands
1.21fabric

Mob AI Commands

A standalone version of the commands added by Mob AI Tweaks mod

6.9kdownloads
GachaAddiction
1.21.1neoforge

GachaAddiction

Every time you open a chest, it's a gacha pull. The reel spins, a rarity glow flashes — how's your luck today?

6.7kdownloads
Matthiesen Core
1.21.1fabric

Matthiesen Core

A library mod for NeoForge and Fabric that enables developers to create mods with a shared common codebase.

6.3kdownloads
Passionfruit API
1.21.4neoforge

Passionfruit API

A core lib for most AceCommander492 and TheDeadlyDevil09s mods. Adds a secret crafting recipe for a passionfruit.

6.0kdownloads
Mini Tardis: BOTI
1.21fabric

Mini Tardis: BOTI

A work in progress addon for Mini Tardis to provide Immersive Portals integration.

5.8kdownloads
Deltapack
1.21.11

Deltapack

A deltarune datapack adding content from dark fountains and dark worlds to the roaring knight. As well as items and spells like snowgrave and the shadow mantle.

5.0kdownloads
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
Fabric Placeholder
rd-132211fabric

Fabric Placeholder

A placeholder mod that provides the "fabric" mod ID for older mods.

4.6kdownloads
Silicate
1.21.10fabric

Silicate

A library providing powerful client-server-agnostic predicates with a simple API.

4.5kdownloads
1HP Challenge
1.21.2

1HP Challenge

1HP Challenge, without the ability to resurrect even using commands.

4.5kdownloads
Eureka! (Unofficial Port)
1.21.1neoforge

Eureka! (Unofficial Port)

An unofficial NeoForge port of Eureka! Ships to Minecraft 1.21.1.

4.0kdownloads
ScoreboardPL
1.21

ScoreboardPL

A fully customizable scoreboard plugin with 25+ placeholders — supports Vault, LuckPerms, live TPS, coordinates, stats and much more.

3.8kdownloads
anti chest esp donut smp
1.19

anti chest esp donut smp

DonutAntiChestESP Advanced Chest Visibility Protection for Minecraft Servers

3.7kdownloads
Reload World Button
1.21.9fabric

Reload World Button

Speed up reloading a world to allow for quicker dynamic registry changes. Client-side & Singleplayer only!

3.4kdownloads