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✦   SCAN  ·  DETECT  ·  PROTECT   ✦

     

The world's most beautiful QR & Barcode scanner — built for privacy, speed, and style.

⬇ Download APK    🐛 Report Bug    ✨ Request Feature    📖 Docs

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🟢   What is Oi QR Scanner?

Oi QR Scanner is a premium, open-source QR & Barcode scanner — built with Flutter and powered by Oi Applications. It fuses blazing-fast on-device ML scanning with a stunning Neon Bento UI, real-time URL safety analysis, and silky-smooth animations.

💡 No internet required. No ads. No data collection. No compromise.

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✨   Features at a Glance

┌─────────────────────────────────────────────────────────────────────┐
│                        OI GUARD  🛡️                                 │
│   Real-time security analyzer — detects phishing, malicious         │
│   files & insecure links before you tap.                            │
└─────────────────────────────────────────────────────────────────────┘

	Feature	Description
🧪	Neon Viewfinder	Animated scanning frame with neon glow effects & precision corner accents
⚡	Blazing Fast	Scan detection in as little as 0.04 seconds — even in low-light
🍱	Bento Grid UI	Staggered history layout with Glassmorphic cards & shared-axis transitions
🎨	Neon Dark Theme	Deep slate + neon green palette — beautiful and high-contrast
🤏	Gesture Zoom	Natural pinch-to-zoom for effortless camera control
🖼️	Full-Screen Scan	Edge-to-edge detection — no restrictive viewfinder boxes
📄	PDF & CSV Export	Generate professional reports from scan history in one tap
🔦	Flashlight Toggle	Instant torch control for any lighting condition
🔊	Tactile Feedback	Double-tap haptics + cyber-chime audio on successful scans
🤫	100% Ad-Free	No banners. No interstitials. No tracking. Ever.

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🏗️   Tech Stack

╔══════════════════════════════════════════════════════════════╗
║                      ARCHITECTURE                            ║
╠══════════════╦═══════════════════════════════════════════════╣
║  Framework   ║  Flutter ^3.11.1                             ║
╠══════════════╬═══════════════════════════════════════════════╣
║  ML Engine   ║  Google ML Kit  (100% On-Device)             ║
╠══════════════╬═══════════════════════════════════════════════╣
║  Database    ║  SQLite  (Local Persistence)                  ║
╠══════════════╬═══════════════════════════════════════════════╣
║  Interaction ║  Gesture-based Zoom (Pinch)                   ║
╠══════════════╬═══════════════════════════════════════════════╣
║  Export      ║  PDF & CSV Generator                          ║
╚══════════════╩═══════════════════════════════════════════════╝

📦   Supported Barcode Formats

  QR Code  ·  EAN-13  ·  EAN-8  ·  UPC-A  ·  UPC-E
  Code 128  ·  Code 39  ·  ITF  ·  PDF417  ·  Aztec  ·  Data Matrix

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🚀   Getting Started

Prerequisites

Before you begin, ensure you have the following installed:

• Flutter SDK ^3.11.1   →   Install Flutter
• Android API 21+ (Android 5.0 Lollipop or higher)
• Dart ^3.0

Installation

# ① Clone the repository
git clone https://github.com/Shuvo-code-dev/Oi-QR-Scanner.git

# ② Navigate into the project
cd Oi-QR-Scanner

# ③ Install dependencies
flutter pub get

# ④ Launch in release mode
flutter run --release

💡 Pro Tip: Always run with --release flag for accurate performance benchmarks. Debug mode is significantly slower.

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🔒   Privacy & Security

  ╔══════════════════════════════════════════════════════╗
  ║   YOUR DATA NEVER LEAVES YOUR DEVICE.   PERIOD.     ║
  ╚══════════════════════════════════════════════════════╝

✅	Guarantee
🟢	100% On-Device Processing — nothing is sent to any server
🟢	No Cloud Dependency — all ML inference runs locally via Google ML Kit
🟢	Zero Analytics / Tracking — no third-party data collection, ever
🟢	No Internet Required — works fully offline
🟢	Encrypted Local Storage — exports saved to protected app directories

For complete details, see SECURITY.md.

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🤝   Contributing

Contributions are always welcome! Here's how to get started:

① Fork the repository
② Create your feature branch   →   git checkout -b feature/AmazingFeature
③ Commit your changes          →   git commit -m 'feat: add AmazingFeature'
④ Push to the branch           →   git push origin feature/AmazingFeature
⑤ Open a Pull Request          →   and we'll review it ASAP!

Found a bug or have an idea? 👉 Open an issue

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📜   License

This project is licensed under the MIT License. See the LICENSE file for full details.

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  ╔══════════════════════════════════════════════╗
  ║        © 2026  OI APPLICATIONS               ║
  ║   Proudly crafted with ❤️  in Bangladesh 🇧🇩   ║
  ╚══════════════════════════════════════════════╝

If Oi QR Scanner made your day easier, drop a ⭐ — it truly means a lot!