How do I install Dupe Mod (1.21.8, 1.20.1) – Dupe on Donut SMP, Any Server?

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. In MC Java Mods, or directly above on this page.

What Minecraft version does Dupe Mod (1.21.8, 1.20.1) – Dupe on Donut SMP, Any Server work with?

The listing gives Minecraft 1.21.8, 1.20.1. This is the version stated by the author or source site, not something we verified ourselves.

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Dupe Mod (1.21.8, 1.20.1) – Dupe on Donut SMP, Any Server

by Moon

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Open in MC Java Mods Get it on Google Play →

Dupe Mod (1.21.8, 1.20.1) – Dupe on Donut SMP, Any Server — screenshot 1

Dupe Mod (1.21.8, 1.20.1) – Dupe on Donut SMP, Any Server — screenshot 2

Dupe Mod (1.21.8, 1.20.1) – Dupe on Donut SMP, Any Server — screenshot 3

Dupe Mod (1.21.8, 1.20.1) – Dupe on Donut SMP, Any Server — screenshot 4

Dupe Mod assists in finding duplication glitches and has an interface for easy use. It helps players detect and exploit errors related to item duplication.

Screenshots:

How to use:

After installation, the mod will add new options to Minecraft’s user interface, typically appearing in the inventory menu.
The mod allows duplication of any item in a Shulker Box if the server has ShulkerPacks installed.

Dupe Mod Download Links

For Minecraft 1.19.2, 1.19.1, 1.19

For Minecraft 1.19.3

For Minecraft 1.19.4

For Minecraft 1.20.1, 1.20

For Minecraft 1.20.2

For Minecraft 1.20.4

For Minecraft 1.20.6

For Minecraft 1.21.1, 1.21

For Minecraft 1.21.3, 1.21.2

For Minecraft 1.21.4

For Minecraft 1.21.5

For Minecraft 1.21.8, 1.21.7, 1.21.6

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft versions listed: 1.21.8, 1.20.1
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: In MC Java Mods, or directly above on this page.

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

Downloads as 176263.mcaddon
Download size: 23 KB
Download link checked 25 Jul 2026 — working
Mirrored on our own servers — the download does not depend on the original host

These come from our own check of the pack file, not from the source page.

Explore more

All Mods for Java All Minecraft Java mods Java mods for 1.21 Java mods for 1.20