Dupe Trigger is a Minecraft mod that provides a keybind to duplicate any item in your main
hand. The keybind for it is "=" by default, but can be changed in controls > Misc options. It is
supported in single-player and LAN worlds, even when cheats are off, but not in servers.
Dupe Trigger operates on blocks and items, including modded ones, and supports NBT data.
This mod has a very simplistic concept but packs immense power to rapidly multiply items,
potentially unbalancing the game when abused.