A QR code scanner is a tool that reads and decodes QR (Quick Response) codes—those square-shaped barcodes found on products, advertisements, menus, tickets, and more. Our online scanner uses your device's camera or an uploaded image to instantly extract the embedded information, such as URLs, text, contact details, or Wi-Fi credentials, without needing any app installation.

Our scanner uses the jsQR library, a pure JavaScript implementation that runs entirely in your browser. When you point your camera at a QR code or upload an image, the tool captures frames and analyzes the pixel patterns to locate the distinctive finder patterns (the three corner squares). Once located, it decodes the data encoded in the QR matrix. Everything happens locally on your device—no data is ever sent to any server.

Yes! Simply switch to the "Scan from Image" tab and upload any image containing a QR code. You can drag and drop an image file, browse your device, or even take a photo directly using your camera. The tool supports common image formats including PNG, JPEG, GIF, BMP, and WebP. The QR code will be detected and decoded automatically.

Absolutely. Your privacy is our top priority. The camera stream and all image processing happen entirely within your browser using client-side JavaScript. No video, images, or scanned data are ever transmitted, stored, or shared with any external server. The tool works offline once the page is loaded. You can verify this by disconnecting your internet after the page loads—scanning will continue to work perfectly.

Our scanner can decode a wide variety of QR code content types, including: URLs / website links, plain text, phone numbers, email addresses, SMS messages, Wi-Fi network credentials, vCard contact information, calendar events, geolocation coordinates, and more. If the QR code follows the standard QR encoding specification, our tool can decode it.

No installation is required at all. This is a fully web-based QR code scanner that runs directly in your browser. It works on any modern browser including Chrome, Firefox, Safari, Edge, and mobile browsers on both iOS and Android. Simply visit the page, grant camera permission if using the camera mode, and start scanning—no downloads, no extensions, no apps needed.

Yes, it's fully optimized for mobile devices! On smartphones and tablets, the camera scanner automatically uses the rear camera (when available) for better QR code capture. The interface adapts seamlessly to smaller screens, and you can also use the "Take Photo" option to snap a picture of a QR code for scanning. Both iOS and Android are fully supported.

If a QR code isn't being detected, try these tips: (1) Ensure good lighting—QR codes need sufficient contrast. (2) Hold the camera steady and at an appropriate distance (not too close or too far). (3) Avoid glare or reflections on the QR code surface. (4) Make sure the QR code isn't damaged, blurry, or partially obscured. (5) For image uploads, use a clear, high-resolution image where the QR code is clearly visible. (6) Try switching between camera and image mode.

Your scan history is stored only in your browser's local storage for your convenience, so you can revisit recent scans. This data never leaves your device and is not accessible by us or any third party. You can clear your scan history at any time with a single click. No account, no tracking, no data collection—just a simple, private tool.

Our scanner uses the well-tested jsQR decoding algorithm, which is highly accurate for standard QR codes. It can reliably decode QR codes from version 1 to 40, with various error correction levels (L, M, Q, H). In optimal conditions (good lighting, clear image, proper distance), the detection rate is near 100%. The tool even works with slightly damaged or partially obscured QR codes thanks to the built-in Reed-Solomon error correction in the QR code specification.