A simple classroom attendance system that uses QR codes instead of facial recognition for privacy-conscious student check-ins.

Features:

• Students scan QR codes or manually enter names to check in
• Real-time attendance list with timestamps
• Duplicate prevention and session management
• CSV export for record keeping
• Fully responsive design

Built with: Canva Code using the Data SDK for persistence and Elements SDK for customization. Demonstrates practical alternatives to biometric tracking in educational settings.

Try it: Students can test the check-in flow, and instructors can see how the live attendance list updates and export functionality works.