ItemDuper-Pro
A recreated and enhanced version of the original DupeTrigger mod by AstraLucid
What it does
Press a single keybind to instantly duplicate items in your main hand - no commands, no cheats required!
Key Features
- One-key duplication - Default 'G' key (fully customizable)
- Enhanced stack limits - Duplicate up to 2,048 items per stack
- Server-side synchronization - Real duplication that persists when moved or placed
- Customizable controls - Change keybind in Controls menu under "ItemDuper-Pro"
- No cheats needed - Works in survival mode and multiplayer servers
- Smart inventory management - Handles full inventories gracefully
How to Use
- Hold any item in your main hand
- Press 'G' (or your custom keybind)
- Watch your items double instantly!
- Repeat to keep doubling (1→2→4→8→16→32→64→128→256→512→1024→2048)
Configuration
- Open Options → Controls → Key Binds
- Find "ItemDuper-Pro" category
- Set your preferred key for "Duplicate Item"
Requirements
- Fabric Loader 0.16.14+
- Fabric API
Credits
- Original concept: AstraLucid (DupeTrigger mod)
- Enhanced recreation: Void
Perfect for creative building, testing, and convenient item management!
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.7
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
Verified by MCModsHub
- Ships as superduper-1.0.1.jar — drop this file into the mods folder
- Download size: 2.9 MB
- Download link checked 31 Aug 2026 — working
These come from our own check of the pack file, not from the source page.