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Minecraft Java 1.21 Mods

Browse 3,577 free mods for Minecraft Java 1.21 — popular picks include TotemCounterV2, Randomizer Ultimate Core, Cloth Config API Port.

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TotemCounterV2
1.21fabric

TotemCounterV2

counts players totem pops accurate and fully customizable

7.3kdownloads
Randomizer Ultimate Core
1.21.8neoforge

Randomizer Ultimate Core

The core mod for one of my modpacks, random block drops, mob drops, and loot container loot

6.9kdownloads
Cloth Config API Port
1.21.8fabric

Cloth Config API Port

Temporal port of Cloth Config API

5.8kdownloads
Steelseries Gamesense [Fabric]
1.21.5fabric

Steelseries Gamesense [Fabric]

Light up all ur Steelseries gear.

5.4kdownloads
AnotherFix
1.21neoforge

AnotherFix

A lightweight library that automatically resolves Mixin conflicts and prevents mod loading crashes.

5.3kdownloads
Crafting Essentials (Mace Core Edition)
1.21neoforge

Crafting Essentials (Mace Core Edition)

This mod simply adds a recipe for the heavy core

4.9kdownloads
Rottenleather
1.21forge

Rottenleather

It's a mod that changes rotten flesh into leather BUT better.

4.8kdownloads
Crafting Essentials (Trident Edition)
1.21.8neoforge

Crafting Essentials (Trident Edition)

This mod simply adds a recipe for the trident

4.7kdownloads
GWOLFLib
1.21.8fabric

GWOLFLib

This is GWOLF Studios' Library Mod

4.5kdownloads
Mob Controller Creeper Spawning
1.21.11fabric

Mob Controller Creeper Spawning

This Mod adds control functions for Creeper Spawning in Minecraft, creating a variety of internal alternatives, reducing the appearance of said mob by 75%, 50% and 25% (at the player's choice) compatibility for 1.17 to 26.1.2

3.3kdownloads
HologramLib / API | Paginated Leaderboards & Custom Holograms [1.19.4 - 1.21.x] ⚡ Java Library
1.19spigot

HologramLib / API | Paginated Leaderboards & Custom Holograms [1.19.4 - 1.21.x] ⚡ Java Library

Packet-based text display library / api with animations, leaderboards, emojis, and more!

3.1kdownloads
CrucialLib
1.21spigot

CrucialLib

Easy to use Library for Spigot Developers

3.1kdownloads
eco
1.21spigot

eco

Powerful spigot development library that supercharges your plugins

2.8kdownloads
TMC Framework
1.21.11fabric

TMC Framework

TerminalMC multi-loader template mod

2.8kdownloads
Alternative Konkrete
1.21fabric

Alternative Konkrete

A lightweight alternative to the Konkrete mod, optimized for low-end PCs with essential bug fixes.

2.8kdownloads
Craftics - Grid Based Tactical RPG
1.21.5fabric

Craftics - Grid Based Tactical RPG

We turned Minecraft into a full fledged tactical RPG! Gone are the days of exploring a world in first person, now you must enter new biomes and defeat enemies to gain resources all in a grid turn based RPG experience!!

2.8kdownloads
Mob Controller Skeleton Spawning
1.21.11fabric

Mob Controller Skeleton Spawning

This Mod adds control functions for Skeleton Spawning in Minecraft, creating a variety of internal alternatives, reducing the appearance of said mob by 75%, 50% and 25% (at the player's choice) compatibility for 1.17 to 26.1.2

2.5kdownloads
Epic Fight: Impactful
1.21.1neoforge

Epic Fight: Impactful

An Epic Fight addon. Adding hit stop and screen shake for more impactful combat experience.

2.3kdownloads
KubeJS Custom Events
1.21.1neoforge

KubeJS Custom Events

A KubeJS addon to allow users to implement mod events in their scripts

2.2kdownloads
Mob Controller Spider Spawning
1.21.11fabric

Mob Controller Spider Spawning

This Mod adds control functions for Spider Spawning in Minecraft, creating a variety of internal alternatives, reducing the appearance of said mob by 75%, 50% and 25% (at the player's choice) compatibility for 1.17 to 26.1.2

2.1kdownloads
Mob Controller Enderman Spawning
1.21.11fabric

Mob Controller Enderman Spawning

This Mod adds control functions for Enderman Spawning in Minecraft, creating a variety of internal alternatives, reducing the appearance of said mob by 75%, 50% and 25% (at the player's choice) compatibility for 1.17 to 26.1.2

2.1kdownloads
Experience Bottle Recipes
1.21.11fabric

Experience Bottle Recipes

Adds a new recipe and crafting method to Vanilla Minecraft, Craft the Experience Bottle (compatible with versions 1.20 to 1.21.11)

2.0kdownloads
GalacticCore
1.21.1neoforge

GalacticCore

GalacticCore is a foundational Minecraft mod currently under development, designed to serve as the central pillar for the larger "GalacticSkies" modpack. Its primary purpose is to establish core functionalities.

1.9kdownloads
Kdnschaut Core
1.21.8forge

Kdnschaut Core

Kdnschaut Core: A Library mod that allows Minecraft Mods to easily save and load JSON data for both world-based and user-based configurations

1.9kdownloads
Season System
1.20.1fabric

Season System

Adds a dynamic season system to Minecraft with Spring, Summer, Autumn and Winter, seasonal weather, snow, melting ice, crop profiles, tooltips, temperature display and API support for mod integration.

1.8kdownloads
Mob Controller Phantom Spawning
1.21.11fabric

Mob Controller Phantom Spawning

This Mod adds control functions for Phantom Spawning in Minecraft, creating a variety of internal alternatives, reducing the appearance of said mob by 75%, 50% and 25% (at the player's choice) compatibility for 1.17 to 26.1.2

1.8kdownloads
Mob Controller Slime Spawning
1.21.11fabric

Mob Controller Slime Spawning

This Mod adds control functions for Slime Spawning in Minecraft, creating a variety of internal alternatives, reducing the appearance of said mob by 75%, 50% and 25% (at the player's choice) compatibility for 1.17 to 26.1.2

1.6kdownloads
KubeJS Minecolonies Events
1.21.1neoforge

KubeJS Minecolonies Events

KubeJS extension addon to use Minecolonies trigger events

1.6kdownloads
Wild Creatures
1.20.1fabric

Wild Creatures

Adds lively land, water and forest creatures to Minecraft with custom drops, duck eggs, GeckoLib animations, balanced spawns and optional mod integrations.

1.6kdownloads
GWOLF's Mod File Vertifier API
1.21.8fabric

GWOLF's Mod File Vertifier API

This mod vertifies the files of other mods you install.

1.6kdownloads
Mob Controller Pillager Spawning
1.21.11fabric

Mob Controller Pillager Spawning

This Mod adds control functions for Pillager Spawning in Minecraft, creating a variety of internal alternatives, reducing the appearance of said mob by 75%, 50% and 25% (at the player's choice) compatibility for 1.17 to 26.1.2

1.6kdownloads
Epic Fight: Indestructible
1.21.1neoforge

Epic Fight: Indestructible

An Epic Fight addon provide new behavioral options through data pack to enhance monster AI.

1.5kdownloads
Mob Controller Drowned Spawning
1.21.11fabric

Mob Controller Drowned Spawning

This Mod adds control functions for Drowned Spawning in Minecraft, creating a variety of internal alternatives, reducing the appearance of said mob by 75%, 50% and 25% (at the player's choice) compatibility for 1.17 to 26.1.2

1.5kdownloads
Architectury API Port
1.21.8fabric

Architectury API Port

Temporal Port of Architectury API

1.4kdownloads
Universal Mod Translator
1.21fabric

Universal Mod Translator

A centralized high-quality Russian localization for various Minecraft mods including Farming Block, Draconic Evolution, and more.

1.4kdownloads
Auto Totem of Undying
1.21.5fabric

Auto Totem of Undying

Automatically equips a Totem of Undying to your off-hand, keeping you safe without manual effort.

1.3kdownloads