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Dupe

Dupe tries to duplicate items from your inventory by abusing known server-side exploits. When you enable it, the client runs the selected exploit routine in an attempt to clone the items you're carrying, letting you end up with more copies than you started with.

This is a situational tool that only works on specific server software and versions — exploits like these are patched quickly, so it may simply do nothing on a server that has already fixed the bug. The currently available exploit targets Paper 1.20.4 (covering roughly 1.20.4–1.21.1) and relies on you having the right item ready in your hotbar before activating; if the required item is missing, you'll be told in chat. It also won't run in singleplayer or in creative mode.

Note that Dupe turns itself off when you leave a server and is excluded from saved configs, since it's only meant to be triggered for these rare, one-off opportunities. Duplicating items is against the rules on virtually every server and can get your account banned, so use it at your own risk.

Category: Exploit Enabled by default: No

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Last updated: 2026-06-08 — Based on source code