Fabric mod for testing duplication exploits

Dupe Utils is a free Minecraft 1.21.11 mod that provides tools for interacting with GUI systems and packets.

Dupers is the fast file duplicate checker and filename search tool.

A plugin that prevents stacked totems. Useful if you own a server that facilitates the crafting dupe, but don't want to deal with stacked totems.

Plex Duplicate Video Finder

A Minecraft Server Plugin that allows you to duplicate items.

Dupe plugin for 1.21.8 minecraft spigot

https://github.com/Coderx-Gamer/ui-utils but on 26.1 and newer

Duplicate items on DonutSMP and other Minecraft 1.21+ Fabric servers with a lightweight dupe mod for fast, simple use

Helping people dupe $1 at a time since October 2024

One of, if not the best dupe plugins you`ll find.

Advanced Duplicate Finder

Addon for RandomPackage for duping books (Opened or Unopened)

C ile yazılmış, temel komut çalıştırma, pipe, redirection, ortam değişkenleri ve sinyal yönetimi özelliklerine sahip minimal Unix kabuk uygulaması.

Returns new identical copy of object, including same prototype chain

Apple's Calculator App - Dupe

Plugin which allows to control which gravity blocks are allowed to be duped through end portal

CopyItem is a simple, yet customizable Spigot plugin that allows server operators and players with permission to copy items in their hand or in their sight.

Best Minecraft 1.21 Dupe Mod 2026 🍩 DonutSMP Tools & Hacks