Design and function often clash. Nowhere is this more true than with custom QR codes. We've seen countless marketing campaigns fail because the QR code had too much logo coverage, low contrast, or missing quiet zones. You can't always tell just by looking at the screen. We built the RahaLune QR Code Debugger to solve this. It runs 6 rigorous optical tests (including WCAG 2.1 contrast and logo impact analysis) to ensure your code is 100% scannable before you spend money on print. It's completely free, requires no login, and processes everything locally in the browser for privacy. If your team handles print design or events, test your designs here: https://rahalune-qr-studio.vercel.app/debugger