Minecraft Java 1.21 Mods
Browse 27 free mods for Minecraft Java 1.21 — popular picks include Lusk, EzEconomy, Protect.
Updated daily
Lusk
Modern, user-friendly skript addon, perfect for beginners and experienced developers.
EzEconomy
Modern, fast, and flexible Vault economy provider for Minecraft servers. Supports YML, MySQL, SQLite, MongoDB, and custom storage. Multi-currency, async caching, and robust permissions for any server size.
Protect
A WorldGuard-like, modern world protection plugin made for API usage
ServiceIO
A Vault drop-in replacement with a new and modern API
Modern Elements
Explore 100+ realistic chemicals with Modern Elements! From Acids and Bases to Organic compounds and Alloys, this mod brings authentic chemistry to Minecraft 1.21.1. Featuring custom 3D lab models, dynamic fluid tints, and a full periodic table.
GregTech Modern Bugs Fix
Fix some bugs of GregTech CEu Modern
FluxBans
FluxBans is a modern minecraft punishments plugin. It has a built in website. It has an appeals system, ban, kick, mute and temp punishments and much more!
![BL Screenshot Gallery [BLSG]](https://pub-2ae937f770284535a96c3330f91236aa.r2.dev/thumb/modrinth/105747.webp)
BL Screenshot Gallery [BLSG]
A modern in-game screenshot gallery for Minecraft that automatically saves where, when, and what biome every screenshot was taken in, with a clean visual browser directly inside Minecraft.
Zyntra
Zyntra is a Fabric Minecraft mod that turns your game into a server management hub with an integrated dashboard to create, control, and monitor servers through a fast and modern interface.
LobbyLink
The modern voting and server listing project!
Modmc
A highly optimized, zero-dependency, and incredibly accurate anti-cheat built natively on PacketEvents. Catch modern hackers instantly across versions 1.8 to 1.21.3 without punishing legitimate players.
TritonAC
An optimized, packet-based solution to block modern combat and movement exploits. Powered by Aquaqa.
Grimm's Mod Base
Base mod for the Grimm's modernized series, now including lattes (?). General content expansion and adventure mod.
LuaCord
Write real Minecraft plugins in Lua. LuaCord is a modern fork of Lukkit, rewritten in Kotlin with full Paper compatibility.
VoxelUI
Modern UI framework for Minecraft NeoForge with XML layouts, MCSS styling, reusable components, theming, and developer tooling.
BSLib
BSLib Library aims to eliminate boilerplate code, streamline development workflows, and introduce modern reactive programming paradigms to the Minecraft ecosystem.
StaffUI
A fully customizable modern staff punishment panel featuring Discord log support, Hex colors, and ItemsAdder compatibility.
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
AuctionX
A modern, fully customizable auction house plugin with per-rank limits, MySQL/SQLite storage, PlaceholderAPI & Discord integration, and a fully editable English messages.yml.
Slipstream
Ultra-fast, zero-allocation packet framework for Paper 1.21+. Coroutine-first, ProtocolLib-style API for modern Kotlin developers.
Voltaic API Mod (1.21.1, 1.20.1) – Dependency For Electrodynamics And Nuclear Science
Voltaic API Mod designed to unify and support multiple mods. It replaces older dependencies and ensures smooth integration across industrial, nuclear, and military‑style mods, all aimed at recreating the Voltz experience for newer Minecraft versions. Features: Required for Electrodynamics, Nuclear Science, Assembly Line, Ballistix, Blastcraft, MFFS, ICBM, and more. Central to the effort of modernizing […]
Aquamarine
A Modern Industrialization-like multiblock library.
WorldWeaver: Remastered
WorldWeaver Remastered is a powerful modern API and world generation library! As the successor to BCLib, it provides the essential framework for BetterEnd and BetterNether, fixing core terrain bugs and unlocking advanced data-driven dimensions!
BCLib: Remastered
BCLib Remastered is a powerful core library and API for Minecraft Fabric 1.21.1. It provides essential shared utilities, rendering tools, custom configs, and procedural models for BetterEnd and BetterNether. Specially optimized for modern modpacks!
Tesseract API Mod (26.1.2, 1.21.1) – Registering Blocks, Items, and Fluids
Tesseract API Mod provides a hook framework and API, specifically for developing addons for Modern Industrialization. It also includes convenient helpers for registering blocks, items, and fluids, as well as offering some extra events to enhance the development experience. With Tesseract, developers can streamline their modding process and focus on building amazing new features. Features: […]
Multiblocked2 Mod (1.21.1, 1.20.1) – Design Your Own Machines Without Code
Multiblocked2 Mod gives you powerful visual tools to build your own custom machines and multi-block structures without writing any code. This mod is an updated and more powerful version of the original Multiblocked, taking ideas from mods like MultiblockTweaker and Modular Machinery. It includes a modern editor and a node graph system to set up […]
WunderLib Neoforge Mod (26.1.2, 1.21.1) – Simplifies Mod Configs And Menus
WunderLib Neoforge Mod brings the popular BetterX library to the NeoForge loader. It helps other mods work properly in modern Minecraft versions. This tool gives mod creators an easy way to build menus and manage game data. Features: NeoForge Port: Moves the original Fabric library to the NeoForge loader. Automated UI: Creates settings menus automatically […]