Technically not really duplication in the strictest sense, but this bug allows the player to convert any item into any other item, provided they have at least 1 of the thing they want more of. Notably ...

This mod adds simple item storages showing the item's inventory image in the front. By left- or right-clicking the image you can take or add stacks. If you also hold the shift-key only a single item ...

We will show you the 10 best Minecraft storage mods so you can always have a clean and sorted inventory. Fans of survival games know how important it is to have a clean and sorted inventory system.