QR Tools
Scanner de codes QR
Scan QR codes in real time using your device camera. Switch between front and rear cameras, or upload an image if you have no camera. Works on desktop and mobile over HTTPS.
Or decode from an image file
🔒 Camera frames and uploaded images are processed locally and never sent to a server. Camera access requires HTTPS.
How to Scan QR Codes
- 1. Click Start Camera Scan and allow camera access when prompted.
- 2. Point your camera at a QR code - it detects automatically.
- 3. Copy the result, open it as a URL, or scan another code.
- 4. No camera? Upload a QR code image using the upload option.
Scanner de codes QR Questions fréquentes
Dois-je installer une application pour scanner des codes QR ?
Non. Ce scanner s'exécute directement dans votre navigateur — aucun téléchargement ni installation requis.
Pourquoi le scanner a-t-il besoin de l'autorisation caméra ?
L'accès à la caméra est nécessaire pour capturer un flux vidéo en direct pour le scan en temps réel. Vous pouvez révoquer l'autorisation dans les réglages de votre navigateur à tout moment.
Et si mon appareil n'a pas de caméra ?
Utilisez l'option de téléversement d'image pour décoder un code QR depuis une photo ou une capture d'écran existante.
Mon flux caméra est-il privé ?
Oui. Le flux vidéo est traité localement — aucune image n'est jamais envoyée à un serveur.
2D QR Matrix Standards & Printing Guidelines
Quick Response (QR) codes are two-dimensional matrix symbologies standardized under ISO/IEC 18004. Equipped with Reed-Solomon error correction (ranging from Level L at 7% recovery up to Level H at 30% recovery), QR codes allow reliable scanning even if portions of the printed matrix suffer physical abrasion, smudging, or partial obstruction by custom logos.
Quiet Zone & Contrast Ratios
Always preserve a quiet zone border of at least 4 modules around the outer edge of the QR code. Avoid low-contrast color combinations (such as yellow on white); dark modules on light backgrounds deliver the fastest camera decode speeds.
Vector Print & Privacy Security
Export your finished code in SVG vector format for crisp, infinite scalability on large signage, product packaging, and business cards without pixelation. All generation and camera decoding executes 100% locally in your browser memory-no private credentials, URLs, or scans are ever uploaded to a server.
Additional Technical FAQs
What is the minimum recommended print size for reliable scanning?
For standard smartphone camera scanning at close range (0.3–0.5 meters), print QR codes at a minimum size of 2 x 2 cm (0.8 x 0.8 inches). For posters and billboards, use a 10:1 distance-to-size ratio (e.g., a code scanned from 2 meters away should be at least 20 cm wide).
Are generated codes permanent, and do they ever expire?
All codes generated on BeYourTools are static and permanent. The encoded data (such as your URL, text, or barcode number) is directly baked into the graphical modules with zero server redirection, meaning they will function forever without expiration.