ArWeLooting

Pressing R stacks the item under the cursor with matching items in the same inventory, merging partial stacks into the fewest full stacks. Shift and R sends matching items from the hovered side to the other side of an open container, such as a chest, which speeds up clearing loot rooms. Double-tapping R performs a sort that packs the whole inventory more densely in the top-left area.

The mod works by simulating the same clicks a player would make by hand, so it runs on a custom server without any server-side install. It is client-side only, which means only the client needs it. The double-tap timing is configurable, and an opt-in toggle for furnaces and brewing stands is off by default, because blindly moving items there can interrupt active smelting or brewing. Fuel and output slots are left alone unless that toggle is enabled.