rysasahrialIf you are looking for a lightweight, advertising‑free QR and barcode reader that you can also study, fork, or integrate into your own Android project, the QrAndBarcodeScanner repository on GitHub is a compelling choice. Published under the extremely permissive Unlicense, the code is placed in the public domain, so you are free to clone, modify, and redistribute it without asking for permission or paying licensing fees. The app is written 100 % in Kotlin, the modern, officially‑recommended language for Android development, which means it is concise, null‑safe, and fully interoperable with existing Java libraries. Internally, the project relies on the battle‑tested ZXing core library to handle fast decoding and generation of matrix barcodes, but wraps that power in a clean Material‑styled interface that feels right at home on Android 14.
From a feature perspective, the scanner can read more than a dozen symbologies—including QR Code, Aztec, Codabar, Code 39/93/128, Data Matrix, EAN‑8/13, ITF, PDF‑417, UPC‑A/E, RSS‑14, RSS‑Expanded, and UPC‑EAN extensions—and it can also create most of those formats directly from user input. Because the repository is open to contributions, developers regularly submit translations via Transifex and open pull requests to add new formats or performance tweaks, so the project keeps improving without bloat. Issues are actively triaged, and the changelog shows a history of steady releases that introduced OTP‑QR support, size optimisations, and compatibility fixes for the latest Android security policies.
From an engineering standpoint the codebase follows standard Gradle modularisation, uses Android Jetpack, and ships with ready‑to‑use Fastlane metadata, CI workflows, and a privacy‑friendly analytics policy—making it an excellent real‑world template for developers who want to learn best practices for barcode scanning in Kotlin. Because the Unlicense offers the same freedoms as placing the work in the public domain, you can embed the scanner in commercial apps, proprietary forks, or academic projects without needing to disclose your own source code. The only real limitation is that the authors provide the software as‑is, without warranties; you assume responsibility for validating security, performance, and legal compliance in your own distribution.
Whether you need a drop‑in scanner module, an educational reference, or a starting point for a bigger commerce or inventory solution, QrAndBarcodeScanner delivers clean, readable Kotlin code and proven barcode technology that can cut weeks off your development schedule while remaining completely royalty‑free.
Extra Details
- Author :
wewewe718(GitHub handle) - Primary Language : Kotlin (100 %)
- License : Unlicense – public‑domain dedication
- License Limitations : No attribution or share‑alike requirements; software is provided “as is” with no warranty.
- Repository URL : https://github.com/wewewe718/QrAndBarcodeScanner
