QRU? - QR Code Debugger

Jon Samp

QRU? is a free, open-source QR code debugger built for developers. Scan any QR code and instantly see its data broken down into color-coded components. Stop guessing what's inside a QR code. QRU? scans and parses QR codes, then displays a colorized breakdown of every URL component — protocol, host, path, and query parameters — each in a distinct color so you can debug at a glance. KEY FEATURES Colorized URL Breakdown — See protocol, host, path, and query parameters highlighted in distinct colors Instant Scanning — Point your camera and get results immediately QR Code Generation — Generate a QR code from any scanned URL to share with other devices Scan History — Keep a log of every scan, revisit and manage them anytime Copy Anything — Tap any component to copy it to your clipboard No Ads, Ever — Completely free with no ads, tracking, or in-app purchases Open Source — Full source code available on GitHub BUILT FOR DEVELOPERS QRU? was originally built to debug EAS Update QR codes, but it works for any QR code you encounter during development. Deep links, universal links, API endpoints, redirect URLs — if it's encoded in a QR code, QRU? will break it down for you. PERFECT FOR DEBUGGING Deep link testing Universal link verification API endpoint inspection Redirect URL analysis Query parameter validation Custom URL scheme debugging Start scanning today!