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QRCodeGenius

QRCodeGenius is an Android QR toolkit for creating, scanning, styling, saving, sharing, and organizing QR codes from one app.

Version 2.0.0 expands the app well beyond basic QR generation. It now includes live scanning, persistent history, Wi-Fi QR handling, multiple QR content types, custom design options, a home screen widget, security review flows for risky scans, dark mode, accessibility improvements, localization, and debug-only performance tracing.

Highlights

  • Generate QR codes for:
    • text
    • Wi-Fi
    • phone
    • email
    • SMS
    • location
    • contact
  • Scan QR codes live with CameraX and ML Kit
  • Store scan history locally with backup, export, and import support
  • Share and save QR codes as PNG, JPEG, or WEBP
  • Customize QR appearance with:
    • foreground and background colors
    • design presets
    • finder eye styles
    • center badges
    • optional center logo
  • Use a home screen widget to generate a quick QR from clipboard text
  • Review suspicious links, risky phone/SMS payloads, and weaker Wi-Fi networks before acting on them
  • Use the app in light or dark mode
  • Access Spanish localization and stronger accessibility support

Screenshots

Create Scan History
Create screen Scan screen History screen

Tech Stack

  • Kotlin
  • Android SDK
  • ZXing
  • CameraX
  • Google ML Kit Barcode Scanning
  • AndroidX AppCompat / Activity / Lifecycle

Getting Started

Requirements

  • Android Studio
  • Android SDK Platform 36
  • JDK 17

Run Locally

  1. Clone the repository:
git clone https://github.com/thomasthaddeus/QRCodeGenius.git
  1. Open QRCodeGenius in Android Studio.
  2. Let Gradle sync.
  3. Run the app on an emulator or Android device.

Project Structure

  • app/src/main/java/programmingtools Main Android app code
  • app/src/main/res Layouts, strings, themes, widget config, and backup rules
  • .github/workflows CI, lint, release, dependency, and wrapper validation workflows
  • docs/performance-benchmarking.md Notes for the recent performance pass
  • CHANGELOG.md Release history and major changes

Release Notes

See CHANGELOG.md for the current release history and docs/release-notes-2.0.0.md for the prepared v2.0.0 release notes.

Contributing

Issues, bug reports, and feature ideas are welcome through the issue tracker.

License

Released under the Apache 2.0 License. See LICENSE.