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Duper project artwork

CurseForge · Minecraft mod

Duper

A lightweight dupe mod with a simple keybind.

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which Duper release should I use?

Updated today
Latest stable file duper-fabric-26.3.jar
Game version 26.3
Loader Fabric

duper-fabric-26.3.jar targets 26.3 with Fabric. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.

Where it goes

Is Duper required on the client, server, or both?

The project page does not say whether this file belongs on the client, dedicated server, or both.

Client Source doesn’t say
Dedicated server Source doesn’t say
Loader for this release Fabric
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume

The source does not explicitly classify this release as client-only or server-only.

Understand client and server requirements Read the Minecraft installation guide

What else does duper-fabric-26.3.jar need?

duper-fabric-26.3.jar. Change the file and its required mods may change too.

No extra mods listed for this file

This file does not list any required mods. Do not add a library just because a different file uses it.

This file does not list any required or optional mods.

Before you install it

Add Duper without breaking your instance.

Built for duper-fabric-26.3.jar. Pick another file and the loader, install side or required mods may change.

  1. 01

    Stick to this file

    Use duper-fabric-26.3.jar. It targets 26.3 with Fabric; another release may have different loader, side or dependency requirements.

  2. 02

    Bring the mods it needs

    This file does not list any required mods. Do not add a library just because a different file uses it.

  3. 03

    Put it on the correct side

    The project page does not say whether this file belongs on the client, dedicated server, or both.

  4. 04

    Pick the file you checked

    Use the “Get this file” button beside duper-fabric-26.3.jar. It opens that exact file at the source.

About this project

What does Duper add?

This mod was made together with ChatGPT, Copilot.
-Lightweight and simple - no commands needed.
-Press the "=" key (default, can be changed in Controls) to duplicate the item in your main hand.
-Works in both singleplayer and multiplayer servers (the server must also have the mod installed).

Project description from CurseForge.

Pick your setup

Duper by Minecraft version and loader

Choose the version and loader you play, then open the matching release.

34 available setups

Showing the newest 12 of 18 game versions. Older files are in the list below.

Check the dependencies, then try the file in a copied instance before changing a world you care about.

Recent files

Duper versions and loaders

14 of 14 releases match

Looking for an older file? The official CurseForge project page is in Resources.

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