Builder's Shulkers lets you use a shulker box's contents without ever placing it down. Open and rearrange one straight from your inventory, and place blocks from a shulker held in your hotbar while you build.

Build straight from your hotbar

Pocket-Build Demo

Hold a shulker box in your hotbar and press Ctrl + right-click to enter Pocket-Build mode
Scroll the mouse wheel to pick a block inside the box. Its name and count show by your hotbar, and the box opens with a dissolving lid that reveals the selected block drawn inside it
Right-click to place that block straight from the box while the box stays in your hand
Middle-click a block you already have in the box to jump straight to it
Hold Ctrl to peek at the box's full contents in an overlay above your hotbar

Open and manage shulker boxes from your inventory

Shulker-Inventory Demo

Right-click a shulker box in your inventory to open it
Move items in and out with all the usual controls: left and right click, shift-click, drag, hotbar number keys, and drop
Close it with Escape, or by right-clicking the same shulker again
While one is open, you can right-click another to switch straight to it
There are open and close sounds, and the lid smoothly animates

Multiplayer

Multiplayer Animations Demo

Works in multiplayer, including the lid animations on shulkers other players hold
Players without the mod can still join the server normally: they simply do not see the extra animations and sounds

Designed to fit in

Vanilla+: improves shulker handling without changing how the game looks or feels
Built on the vanilla shulker container (same screen, same data), so it plays nicely with most other mods, and it works with shulker boxes added by other mods