Paper plugin for duplicating the item in your main hand, with configurable limits and blacklists.

Install

Download the latest release and place the JAR in your server's plugins folder.

Commands

Command	Permission
/dupe [amount]	simpledupe.use
/simpledupereload	simpledupe.admin
/simpledupeguide	simpledupe.guide (operators)

/dupereload is an alias for /simpledupereload.

Custom Dupe Limits

Grant simpledupe.dupe.<number> to raise a player's maximum above the configured limit. For example, simpledupe.dupe.8 allows /dupe amounts up to 8. The highest numeric limit granted to a player is used; everyone else follows max-dupe-amount.

Blacklist

Edit plugins/SimpleDupe/config.yml:

# SimpleDupe configuration
#
# Maximum number of items a player can duplicate at once.
max-dupe-amount: 5
drop-overflow-items: false

# Items matching any entry below cannot be duplicated.
blacklist:
  materials:
    - BEDROCK
    - BARRIER
    - COMMAND_BLOCK
    - STRUCTURE_BLOCK
    - JIGSAW
  names: []
  # Use an enchantment key, or KEY:LEVEL to block that level and higher.
  enchantments: []
  lore: []

Set drop-overflow-items to true to drop duplicated items that do not fit; the default false keeps them off the ground and notifies the player. Add material names, custom names, enchantments, or lore entries to their respective lists. KEY:LEVEL blocks an enchantment at the specified level and above. Prefixes, messages, custom names, and lore support legacy colors (&c or §c), hex colors (&#42e8e0), and MiniMessage tags such as <aqua>text</aqua>.

Requires Paper 1.21.1 and Java 21.