This Plugin is similar as the popular 1.17 dupe glitch with the anvil but it is for 1.21.11 if you want to know how to use the plugin to dupe this is how: Step 1, take a damaged anvil and place it down Step 2, Take any item and put it in the anvil Step 3, Completely fill your inventory with items Step 4, Rename the the item imputed in the anvil until the anvil breaks Step 5, The dupe should work if it does not work try it again
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21, 1.21.1, 1.21.2
- 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 AnvilDupe-1.0.0.jar — drop this file into the mods folder
- Download size: 7 KB
- Download link checked 14 Sept 2026 — working
These come from our own check of the pack file, not from the source page.