Minecraft Java 1.21 Mods
Browse 1,122 free mods for Minecraft Java 1.21 — popular picks include Advanced Compounds & Alloys, Create: Weighted Items, SchemFlow.
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Advanced Compounds & Alloys
AC&A is a very large mod mainly based around science. It is MOSTLY scientifically accurate, but of course not completely, some things are simplified for gameplay (though not massively) and some things I have not been able to find good sources.
Create: Weighted Items
Adds item contents to Sable physics mass, making filled storages heavier. Supports Create storages, compatible addons, and configurable weight scaling.
SchemFlow
Lightning‑fast schematic management for Minecraft servers (S3/MinIO-backed).
Inventory QOL
A modpack made for the best inventory management experience.
ae2linkrs
Connect the Refined Storage network to the AE grid as native AE2 storage cells (one-way bridge; AE can read and write to RS).
Burning Energy
A server mod that connects the Fabric Energy API to Burning, making every storage of one one of the other, too.
PrismaticAPI
Versatile library for advanced color manipulation and text formatting in Bukkit/Spigot/Paper plugins.
VanishV
VanishV - this is an improved version of the regular vanish, convenient and simple

Enigma Storage
A compact terminal storage system for Minecraft servers, inspired by Applied Energistics 2 (AE2).
Ender Mail Reborn
Ender Mail Reborn lets players pack items, stamp packages with coordinates or a named locker, and dispatch an Ender Mailman to deliver them.
Delphi Entity Menus
Make menus with XML, style with CSS and add functionality with either Java or JavaScript. All rendered with Display Entities
RemooLogin
A lightweight Minecraft plugin for offline servers that requires players to register and log in before interacting.
QuarryPlugin
⚒️ QuarryPlugin Automated Mining, Done Right Always wanted a BuildCraft style quarry in vanilla survival?
OmniPanel gui
OmniPanel is an advanced all-in-one Minecraft administration and server management plugin built for Paper and Spigot servers. It combines moderation, player management, anti-lag systems, staff tools, ranks, homes, RTP, security utilities, automation, and c
P_Terrenos
Terrenos Customizados Custom lands
personal audio player
play audio player music anywhere
AH StatusAPI
Host a powerful, secure REST API on your own Server. Best for building your own Dashboard - For Devs and Admins
ScoreboardDatabase
Allows to save scoreboard inside of a database, though a ingame command. For Datapack Developer.
Warfactory Ultimate Weight
Weight mod for minecraft that prioritizes compatibility and performance
Work Orders
Put your copper golems to work with custom jobs and tasks.
Fill Loot
Efficiently fill thousands of containers in under a second with any loot table you can think of!
Cambium
This mod is a take on tech SolarPunk. It adds resource trees, bio-engineered machines, and more! Hobby mod so is still work in progress. More of proof of concept.
PacketBooks
A simple plugin for fixing various book-based data overflow exploits by hiding the actual book contents unless the player actually needs to view them.
AnarchyCore-NextGen
It didn't work on some of stable Minecraft servers.
Tiny DataLib
This project is a library with useful utilities such as a database system and more.
Minecraft Statistics
Player Statistics is a Minecraft server plugin that tracks and syncs player statistics to MySQL database also providing useful commands and features for both players and server administrators.
MyTPA
Simple and balanced TPA.

LogsRemover
A Minecraft plugin for automatically removing old log files.
QuantumTools
QuantumTools adds late‑game, progression‑friendly tools
CorruptionCraft
A plugin that challenges players. Random events can occur. (no Spoilers!)
Axolostry
The axolotl breeding is greate
hClans
Configurable clan system with invites, roles, permissions, levels, experience, PlaceholderAPI, SQLite/MySQL storage, visual clan creator and addon API.
Create: Frogport Networks
A Create addon for Minecraft 1.21.1 (NeoForge) that brings real computer networking to your factory.
Aran's Discord Presence
A lightweight, customizable Discord Rich Presence mod for Fabric. Features a built-in settings menu to toggle Server IP, biomes, dimensions, and player heads on your Discord status.
Tom's Tech Storage
Resource pack for Tom's Simple Storage to give it a technology theme.
InventorySearchBar
A litte mod that add's a search bar in survival invetory to search for items