How do I install Viper Anti-Dupe?

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. Opens on Modrinth — not every file is mirrored on our own servers.

What Minecraft version does Viper Anti-Dupe work with?

The listing gives Minecraft 26.3. This is the version stated by the author or source site, not something we verified ourselves.

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Viper Anti-Dupe

Java mod listed for Minecraft 26.x. Downloads from the MC Java Mods app on Android.

by TOP_G2026 · on Modrinth

⬇ Download on Modrinth

Open in MC Java Mods Get it on Google Play →

Viper Anti-Dupe is a high-performance, Server-Side ONLY configurable anti-duplication mod for Minecraft. Blocks 25+ known dupe methods with zero client mods required. Fully configurable per-method — choose what to block and what to allow. 🔒✨

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft version listed: 26.3
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.

File checked by MCModsHub

Ships as viper-anti-dupe-1.0.0.jar — drop this file into the mods folder
Download size: 100 KB
Download link checked 15 Oct 2026 — working

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

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