Minecraft Java 1.21 Mods
Browse 1,389 free mods for Minecraft Java 1.21 — popular picks include Jam & Jelly, UIM Minecraft - Hotbar Only, Borukva Inventory Backup.
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Jam & Jelly
Amazing mod about jam cooking and other related stuff.
UIM Minecraft - Hotbar Only
Inspired by Old School Runescape's Ultimate Ironman mode, this datapack restricts your inventory and storage options, providing an interesting challenge and a new way to play.
Borukva Inventory Backup
This server mod create backup mechanic for players inventory. Support MySQL or file H2.
Create Backpack Upgrades
This project adds two (More to come) backpack upgrades to the sophisticated backpack mod and the Create Mod.
The Emc Plugin
A plugin from projectE mod to Plugin!
No More Ender Chest
Datapack that remove enderchest craft
Automated Item Frames
Set the item frame item to the most common item on a chest/barrel (automatically).

Living Item
Let your items come alive inside inventories
Auto Trash
Allows the player to put items in a menu. If the item that was put in the menu and picked up again, it will be deleted.
Supply Crates
Drop Crates with loot tables for your players!
ImageCanvas
A server-side plugin for uploading images
Custom Vein Miner
Mine entire veins and fell whole trees in one swing with full Fortune & Silk Touch support
Tycoon Shop
Tycoon Shop — a mod that lets you create custom shops and sell items using its own in-game currency.
More storage blocks
You can uncraft more blocks for better memory management

SimplePin
Plugin for registration with GUI interface
Player Manager
Player Manager a powerful and intuitive Minecraft plugin for efficient player management.
Mecânicas Classicas (PT-BR)
Adiciona uma variedade de funções e mecânicas de versões antigas do minecraft!
NoTotems Plugin
Disables Totems of Undying for players
LockyLocks
Secure your treasures with durable locks and forged keys, a personal touch of protection.
Convenient Containers (ConCon)
Serverside mod for convenient, portable containers and workstations supporting Fabric and NeoForge.
Give Item
Add the mechanic of sharing objects with your teammates, without the need to throw them.
Dead Body
The Most Advanced Realistic Lootable GUI Corpses Graves and Dead Bodies for Mobs and Players in Minecraft! + PVP Logging Solutions & More
Sable Assembly Fix
Fixes item duplication during Sable assembly/disassembly by preventing non-Clearable block entities from dropping their contents. Works with any mod - Keg, cabinets, baskets, Item Drains, Sophisticated Storage, etc. No configuration needed.
Ominous Chest Lock (& Lock Picking)
Paper plugin (1.21.0 –> 26.2) and Fabric server mod (1.21.11 + 26.2) that locks any container to a named Ominous or regular Trial Key, with an optional lockpicking minigame!
Wooly String
A mod that simply adds the ability to craft wool into string

Azurite/Bluewood mods
此模组简称A/B ms|This module is referred to as A/B ms 此模组现已全部完成!(后续会根据反馈的问题进行整改) This mod is now complete! (Rectification will be made according to the feedback in the future)
Suitably Stackable Stew (Port)
Stack stews up to 16! Quick and easy! Port of the original mod by sfort__

unbound items
Unbound Items expands item stack sizes up to four times their original limit, capped at 256.

Fabric Lobby
Fabric Server-Side mod that adds /lobby command to teleport to a configurable location, and another to go back to where you were.
Dekays Smeltable Items
Lets you smelt items you always wanted to in (blast) furnaces
Malts
An open-source and free Vaults plugin that incorporates a warehouse for mass item storage.
Pet Inventory
This lightweight mod adds personal inventories to tamed pets.
Better Chest Drops
With this mod you can drop all items from a chest at once
Iron AI
A customizable AI chat assistant for Minecraft that can learn words, respond to messages, and be taught new responses with simple commands like /ironai teach
WorldSystem
Give players the ability to create their own world to play on, without using different servers. (per player worlds)

Item Counter HUD
A Item Counter Mod that helps you preview you specific items in you inventory