About app

GUI application written in Java designed to generate QR codes based on the entered text and logo.

Main window:

Features

1. it is possible to set the desired resolution or generate the optimal one, depending on the content of the code.

2. when determining the optimal resolution, the number of modules in the QR code and the number of pixels in one module are used as the basis.

3. it is possible to set the error correction level, if necessary

4. it is possible to add a logo in the center, taking into account the readability of the QR code

5. If the logo is not square, then it is scaled to a square in order to normally determine the required resolution of the QR code at the output.

6. Settings:
   
   

7. Simple QR code (without logo):
   
   

8. QR code with logo in the middle:
   
   

Versions

• 1.0.0: 05.06.2025. // Stable version

License

This project is licensed under the terms of the Apache License 2.0.

See the NOTICE.txt file for attribution and license information regarding third-party libraries, including ZXing, which is used in this project and licensed under the Apache License 2.0.

Dependencies and other resources

Libraries

• ZXing library: github.com/zxing/zxing
  

Images

• Empty image: No Image icon by Icons8
• QR image: QR icon by Icons8
• Clear image: Clear icon by Icons8
• Banana image: Banana icon by Icons8

Known issues

Development plan

Contributing

Contributions are welcome! Please open issues or submit pull requests.

Contact

For questions or feedback, feel free to open an issue.