DupeTrace has been replaced with Better Anti Dupe, because DupeTrace's method of detection does not allow for stacked items to keep working well. If you split a stack, you can't merge it and vice versa.
The DupeTrace documentation and source will stay online, because maybe some day a starting dev wants to check out how the soup is made.
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Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.1, 1.21.2, 1.21.3
- 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 DupeTrace-1.2.0-paper.jar — drop this file into the mods folder
- Download size: 3.7 MB
- Download link checked 9 Sept 2026 — working
These come from our own check of the pack file, not from the source page.