
Panda Anti-Dupe
A simple drop-in mod to prevent all forms of duping. TNT-Duping, Gravity block duping, and much more will not work with this mod enabled.
About this Mod
PandaAntiDupe
Description
A simple drop-in plugin to prevent all forms of duping. This will prevent TNT Duping, Trident Dupe, Gravity block duping, and various other forms of duplicating items.
(Some dupes patched by this mod may already be fixed by Mojang, feel free to open an issue)
Configuring
config/PandaAntiDupe.json generated at runtime, a true/false entry for each dupe patch exists
{
"BookDupe": true,
"ShulkerBoxDupe": true,
"RailDupe": true,
"HorseQuickMoveDupe": true,
"StackSplitDupe": true,
"HopperDupe": true,
"PistonDupe": true, //this is the TNTDuping one
"EntityDimensionDupe": true,
"TridentDupe": true,
"BeeDupe": true,
"TripwireDupe": true,
"LecternDupe": true,
"TripwireHookDupe": true,
"GravityBlockDupe": true,
"NBTListDupe": true
}
Simply set to false to disable
Try it out
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Support
License
Available Versions
How to Install Panda Anti-Dupe on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (26.1.2).
Install Mod
Open the mod browser in the dashboard and search for "Panda Anti-Dupe". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
26.1.2, 26.1.1, 1.21.11 (+8 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Panda Anti-Dupe server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (26.1.2). You can switch loaders with one click in the panel.
Is Panda Anti-Dupe compatible with fabric?
Panda Anti-Dupe officially supports fabric for Minecraft 26.1.2, 26.1.1, 1.21.11. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Panda Anti-Dupe – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Panda Anti-Dupe consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Rent Modded Server
Install Panda Anti-Dupe with just one click on your server.