QRU? - QR Code Debugger
Jon Samp Developer Tools iPhoneiPadiPod touch
QRU? - QR Code Debugger is a free Developer Tools app for iPhone and iPad by Jon Samp. Requires iOS 17.0. Updated October 23, 2026.
- Price
- Free
- on the App Store
- Size
- 23 MB
- Age 4+
- Updated
- Oct 23
- 2026 · v2026.9
Screenshots
About QRU? - QR Code Debugger
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!
What’s new
Version 2026.9 · Updated October 23, 2026
Supports additional form factors.
App privacy
The developer, Jon Samp, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| QRU? - QR Code Debugger | – | Free | October 23, 2026 | |
| AppIcon Maker - Developer Tool | – | Free | Jul 3, 2026 | Compare |
| MDQuill: Markdown Editor | 4.2 / 5 (5) | Free | Oct 28, 2026 | Compare |
| API Matrix | – | Free | Oct 24, 2026 | Compare |
| DevSnap: Code to Markdown | – | Free | Aug 30, 2026 | Compare |
| SSE Inspector - LLM API Client | 5.0 / 5 (1) | Free | Jul 1, 2026 | Compare |
| CFPanel | 5.0 / 5 (1) | Free | Jul 2, 2026 | Compare |