ClientSide

Allows you to rotate, balance or clear the crafting matrix by the press of a button, in any (supported) crafting window.

Randomly place blocks from your hotbar

Press H to open the Minecraft Wiki page of the block/item/entity you're aiming at.

Adds a second hotbar that displays a row of the inventory on the HUD. This provides a dual hotbar setup where you can easily swap/hotswap/cycle which of the two hotbars is active. Improves inventory management.

Adds a search bar to containers

ModelShifter allows you to change all players into cats, ghasts, and many more custom models completely client-side, which makes it work on every server!

Simple placement of random blocks from hotbar

Ctrl + LMB on recipe for instantly crafting, according to it. Fabric.