Minecraft Java 1.21 Mods
Browse 10 free mods for Minecraft Java 1.21 — popular picks include CleanContainer, Compact Diamonds, Cardboard Boxes.
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CleanContainer
CleanContainer helps you to sort your inventory and your containers, such as chests, barrels, shulkers, minecartchests and enderchests.
Compact Diamonds
No need to carry too many shulkers because you happen to be too rich. Just pack them together into a Compact Block of Diamond.
Cardboard Boxes
An early game alternative to shulker boxes!

Shulker Accessory
Equip shulker boxes as wearable accessories. Carry up to three on your hip slots and open them without placing. Supports Sophisticated Storage and Easy Shulker Boxes.
Cardboard Boxes Neo
An early game alternative to shulker boxes!
TQs Unstack Shulkers in item form
Unstacks stacked shulker boxes that are in item form. Handy with mods that can stack shulker boxes in your inventory and on the ground, like tweakeroo and carpet mod.
ShulkerBox Limit
ShulkerBoxLimit is a plugin that allows Minecraft server administrators to set a limit on the number of shulker boxes that players can carry in their inventory.

Xiaoklunar Shulker
Inventory shulker opening + overflow pickup vacuum that stores into carried shulkers.
Cardboard box shulkers
A resource pack that replaces all shulker boxes with cardboard boxes sealed with matching colored duct tape. It works without Optifine and perfectly fits a warehouse or storage room aesthetic.
Shulker Box Slot Mod (1.21.1, 1.20.1) – Dedicated Equipment Slot
Shulker Box Slot Mod allows players to wear a Shulker Box on their back, just like a backpack! It looks awesome and is highly functional, providing a large number of inventory slots for carrying items. The Shulker Box is placed in a special equipment slot, after which it appears on the player's back. To open […]