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🛡️ AntiDupeDetector
Lightweight zero-false-flag dupe detection for Minecraft 1.21+. If it flags, it's real — no noise, no spam, no false positives.
✨ Features
🔥 Illegal Stack Detection
Always enabled, 0% false flags. Flags only mathematically impossible items:
- 80× Totems
- 120× Shulker Boxes
- 200× Diamonds
🧩 NBT Clone Detection (Optional)
Disabled by default. Detects huge amounts of identical NBT items inside one container:
- Cloned shulkers
- Copied totems
- Duplicate non-stackables
📈 Burst Gain Detection (Optional)
Disabled by default. Detects extremely fast gains of high-value items. Useful for catching shulker/ground/hopper dupes when enabled.
📊 Staff GUI
/antidupe gui opens a clean, paginated interface:
- Player heads 👤
- Alert types & reasons
- Time, location & suspicion
- Page arrows ⬅️➡️
Designed for fast staff review.
⚙️ Commands
/antidupe alerts → Toggle alerts
/antidupe gui → Open alert viewer
/antidupe reload → Reload config
🚀 Highlights
- 🧼 Zero clutter
- ⚡ Super lightweight
- 🛡️ Only true dupes flagged
- 🔋 No async inventory edits (0% dupe risk)
- 🟢 Fully Folia-compatible
- 🗂️ Clean GUI with pagination
📌 Supported Platforms
- Spigot
- Paper
- Purpur
- Folia (Minecraft 1.21+)
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 AntiDupeDetector-1.0.0.jar — drop this file into the mods folder
- Download size: 27 KB
- Download link checked 5 Sept 2026 — working
These come from our own check of the pack file, not from the source page.