QR Tools
Leitor de código 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.
Leitor de código QR Perguntas frequentes
Preciso instalar um aplicativo para ler códigos QR?
Não. Este scanner é executado diretamente no seu navegador - não é necessário fazer download ou instalação.
Por que o scanner precisa de permissão da câmera?
O acesso à câmera é necessário para capturar um feed de vídeo ao vivo para digitalização em tempo real. Você pode revogar a permissão nas configurações do seu navegador a qualquer momento.
E se meu dispositivo não tiver câmera?
Use a opção de upload de imagem para decodificar um código QR de uma foto ou captura de tela existente.
A imagem da minha câmera é privada?
Sim. O feed de vídeo é processado localmente - nenhum quadro é enviado para um servidor.
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.