QR Code Scanner
Privacy-First Camera Scanner
Scan QR codes with your camera OR upload images from your device. Enhanced camera logic with auto-start and smooth detection. Sound and vibration feedback. 100% client-side processing - your data never leaves your device. Privacy-first, works offline.
Scan QR Codes
Use your camera for live scanning or upload an image file containing a QR code. All processing happens locally in your browser - no images are uploaded or stored.
Camera Access Denied
Scanner Settings
When enabled, scanned URLs will automatically open. Otherwise, you'll see an "Open Link" button.
Scan History (0)
No scans yet. Point your camera at a QR code to begin.
How to Use
1 Choose Scan Method
Click "Start Camera" for live scanning or "Upload Image" to scan from a saved image file. Both methods work entirely in your browser.
2 Scan QR Code
For camera: align the QR code within the scanning area. For upload: select any image file (PNG, JPG, etc.) containing a QR code.
3 View Results
When a QR code is detected, you'll hear a beep and see the result. Use the action buttons to copy, open URLs, or interact with the content.
4 Manage History
All scans are saved to history (stored locally). Review past scans or clear history anytime.
Scanning Tips for Best Results
- Lighting: Ensure good lighting. Avoid shadows and glare on the QR code.
- Distance: Hold your device 4-8 inches away from the QR code.
- Stability: Keep your hand steady or rest your device on a surface.
- Focus: Center the QR code in the crosshair area for faster detection.
- Quality: Blurry or damaged QR codes may not scan. Try cleaning the surface.
- Mobile: On phones, use the rear camera for better quality and faster scanning.
Frequently Asked Questions
Why We Built This QR Code Scanner
Two ways to scan. We added image upload support as a major feature enhancement. Now you can scan QR codes directly with your camera OR upload QR code images from your device. Got a screenshot with a QR code? Upload it. Received a QR code via email? Upload it. Downloaded a QR code from a website? Upload it. This dual-mode approach makes scanning flexible and convenient - no more awkward camera angles trying to scan a QR code already on your phone. Camera scanning now features enhanced logic with auto-start capabilities and smooth, reliable detection. The scanner provides instant feedback with sound and vibration when a QR code is detected, making the scanning experience more intuitive and responsive.
QR code scanning has become ubiquitous in our daily lives - from contactless payments and restaurant menus to event check-ins and product authentication. However, users face significant challenges finding a reliable QR scanner that respects privacy, works offline, supports multiple scanning methods (camera AND file upload), provides scan history management, and operates entirely client-side without sending sensitive data to servers. Most mobile QR scanner apps request excessive permissions, inject tracking scripts, require account creation, display intrusive advertisements, or upload scanned data to remote servers for analytics - creating serious privacy and security concerns, especially when scanning confidential information like WiFi credentials, payment codes, or personal contact details. This professional QR code scanner tool was created to provide users with a comprehensive, privacy-first QR scanning solution that supports camera scanning with automatic detection and enhanced logic, file upload for scanning saved QR images, clipboard paste for quick decoding, scan history with local storage, and complete client-side processing to ensure scanned data never leaves your browser.
Our QR scanner addresses real-world scanning workflows across personal and professional contexts. Whether you are a conference attendee scanning vCard QR codes to collect contacts, a traveler scanning WiFi QR codes to join hotel networks, a shopper scanning product QR codes to verify authenticity, a warehouse worker performing inventory scans from printed labels, a developer testing QR code generation by scanning output images, or a security-conscious user who needs to scan sensitive QR codes without exposing data to third parties, this tool provides the scanning capabilities and privacy protections you need. Camera scanning with automatic detection eliminates the need to manually capture photos - simply point your device camera at a QR code and it's instantly decoded. File upload scanning enables batch processing of saved QR code images, perfect for processing multiple codes from screenshots, downloads, or archives. Clipboard paste support provides lightning-fast scanning when you already have a QR code image copied. Scan history with local storage (up to 50 recent scans) lets you reference previously scanned codes without rescanning, while quick actions like copying results, opening URLs, or clearing history streamline common workflows. All scanning happens using the open-source jsQR library running entirely in your browser - no server uploads, no third-party tracking, no data collection.
Beyond QR code scanning, this tool educates users on scan privacy and troubleshooting through comprehensive FAQ addressing common questions about camera permissions, HTTPS requirements, offline functionality, supported QR code formats, and history storage. Understanding that camera access requires HTTPS and browser permissions prevents confusion, while knowing that all processing happens client-side provides peace of mind when scanning confidential information. Automatic QR code type detection intelligently identifies URLs, plain text, WiFi credentials, email addresses, phone numbers, and vCards without requiring manual format selection. RJL.io is committed to building privacy-first developer tools that empower users without compromising security - and this QR code scanner exemplifies that mission by delivering professional-grade scanning functionality with complete transparency, offline operation, local-only storage, and zero data collection or third-party tracking.