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Minecraft Java 1.21 Mods

Browse 372 free mods for Minecraft Java 1.21 — popular picks include Fruitbridge, ConditionMod, BetterReset.

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372 mods

1.21fabric

Fruitbridge

This mod contains Fruitbridging utilities to assist players. Features are designed for both the Distance and Java 12b leaderboards.

1.2kdownloads

1.21.1fabric

ConditionMod

Create powerful Minecraft events using YAML. No coding required. Optimized alternative with ConditionalEvents compatibility.

1.1kdownloads

1.21

BetterReset

Minecraft plugin that lets you safely reset a world’s Overworld, Nether, and End while the server is running, with player protection, async deletion, and full regeneration in one command or GUI.

1.1kdownloads

1.21fabric

Netty Memory Tweaker

Adds a netty allocation options to the settings menu.

1.1kdownloads

1.21fabric

Every API

As you read the name this modpack adds all the API's that are present in the Minecraft API library. You can now download any mod without worrying about the API's that you will need to find manually, just download this modpack and you're all set.

1.1kdownloads

1.21.11fabric

Lag Detective

Lag Detective is a lightweight diagnostics mod that helps answer where the lag is coming from.

1.1kdownloads

1.20.3

Advanced Macro Engine

A high-performance scripting and macro execution framework for Minecraft Java Edition datapacks. Provides fiber scheduling, modular APIs, and multi-version overlay support out of the box.

942downloads

1.21.5

ItemDisplayPlugin

This plugin allows the collection of items dropped within a 5-block radius in Minecraft, merging the items with the same type and displaying their quantity in the item’s custom name. Items that cannot be stacked, such as enchanted equipment (e.g., swords,

932downloads

1.21.10neoforge

[Ecentrix] Progressive Core

Lightweight shared library powering all Progressive Mods, ensuring stability, performance, and seamless compatibility.

917downloads

1.21.11fabric

G1axFixer

G1axFixer is a client-side Fabric mod that fixes resource pack crashes and optimizes network, rendering, and ticking for maximum FPS and smooth combat.

858downloads

1.21.1neoforge

Reese’s Sodium Options – Compat Rewrite

The required compatibility shim to make RSO work, all credit goes to the person who actually wrote RSO; FlashyReese

844downloads

1.21

Greg's Team SMP

A lightweight team & claim plugin for Minecraft SMPs. Manage your territory, protect your land and dominate the map with your team.

833downloads

1.21

RevertRaidChanges-Pro

Restored Raid to the logic before version 1.21. Allows most professional Raid Farms to function.

833downloads

1.21

GuardianAc++

Enterprise anti-cheat for 10k+ players. 12 detection modules, real-time monitoring, Discord integration, zero vulnerabilities. Professional-grade protection with dynamic scaling.

815downloads

1.21

Umbraix Jobs

A modern, feature-rich jobs plugin for Minecraft servers, offering customizable careers, dynamic missions, team play, and a sleek GUI—built for performance and player engagement.

788downloads

1.8

SIR

A simple chat plugin that have a lot of functions to customize your server.

771downloads

1.16

VelocityNavigator

The all-in-one Velocity network solution for intelligent lobby routing, parties, queues, Java and Bedrock menus, server management, Redis sync, failover, and live monitoring.

770downloads

1.20.1fabric

ServerLibraries

A Library made to ease serverside mod creation

768downloads

1.21.1neoforge

Orcore (discontinued)

The Core mod for ItsOriginal's (and other's) mods.

746downloads

1.21

Deltatime

Keep track of the real time even on laggy servers (uses the worldborder method)

735downloads

1.21

Lifesteal Core X

Lifesteal Core X delivers a complete competitive lifesteal experience with heart stealing, revive systems, combat control, anti-farm protection, and scalable MySQL storage for high-performance SMP servers.

712downloads

1.21.1fabric

Pix Vulka Optimizations

⚠️【警告】请手动安装VulkanMod Android支持库模组后再运行，否则会立即崩溃。 ⚠️[Warning] Please manually install the VulkanMod Android support library mod before running, otherwise it will crash immediately.

691downloads

1.21

RealCarry Plugin

Tired of limitations? RealCarry brings a new level of immersion and utility to your Minecraft server!

679downloads

1.21.1neoforge

Smorox Pack Assets

Libary Mod for Smorox Pack Projects

659downloads

1.21neoforge

Thread Weave

Async processing framework for safe multithreaded simulations

650downloads

1.21

FoliaCore

A complete essentials suite rewrite designed explicitly for regionized servers. Runs warp, spawn, utility commands, and chat visual frameworks asynchronously.

628downloads

1.21.10

PacketEventsSK

A skript addon adding packet related features to Skript.

615downloads

1.20.3

ReplaceBlock

This datapack provides a powerful API that can replace blocks in the world with high performance in a completely vanilla way after world generation.

602downloads

1.21fabric

Auto Logout

A mod that automatically kicks yourself from server once a player gets in range of blocks that u set, allows u to afk farm and play safe.

593downloads

1.21fabric

I Want To Control My Server (IWTCMS)

Simple minecraft mod, which allows you to connect to your server and control it

578downloads

1.21.8fabric

APEL

Apel stands for Animative Particle Engine Library and is used for complex particle animations, all without the need to major in linear algebra. It provides a straightforward interface and rich in documentation for developers.

576downloads