Minecraft Java 1.21 Mods
Browse 9 free mods for Minecraft Java 1.21 — popular picks include Cardboard Boxes, Turtle Totes, Armadillo Boxes.
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Cardboard Boxes
An early game alternative to shulker boxes!
Turtle Totes
Craft a turtle tote (green shulker box) with turtle shells, scutes and a barrel for inventory management
Armadillo Boxes
Adds lesser-good versions of Shulker boxes
shulker2box
transforms brown shulker box to warehouse box

Copper Storage
Adds Copper Boxes that work like Shulker Boxes with limited space.
Shulker Trims
shulker box + armor trim + smithing table = tell your boxes apart at a glance

Draft GUI: Alt. storage
Draft GUI: Alt. Storage is an add-on for Draft GUI that removes "Item" labels from storage slots, such as chests, shulkers, barrels, and others.
Casks
Portable, shulker-like storage for the early game.

Paint your Shulkers!
Simple mod that allows you to paint your shulkers. Works with texture packs and on servers!