Drop QR image here
or browse file
PNG, JPG, GIF, WebP, BMP, SVG
Ready to decode
Upload a QR image or use webcam// scan and decode qr codes in one click
Decode any QR code instantly in your browser. Upload an image or use your webcam — no install, no sign-up, 100% free and private.
Drop QR image here
or browse file
PNG, JPG, GIF, WebP, BMP, SVG
Ready to decode
Upload a QR image or use webcamUpload an image file, enter an image URL, or use your webcam to scan live.
Drop a file, paste a URL, or point your camera at a QR code.
The decoded content appears instantly — copy or open URLs with one click.
QR Code Reader is a free browser-based tool that decodes QR codes entirely on your device. No image is ever uploaded to a server — all processing happens locally using the BarcodeDetector API and jsQR library.
Supports URLs, plain text, Wi-Fi credentials, contact cards (vCard), email, phone numbers, and more.
No. All QR code decoding happens entirely in your browser using JavaScript. Your images never leave your device, making this tool completely private.
PNG, JPG/JPEG, GIF, WebP, BMP, and SVG are all supported. The image just needs to contain a readable QR code with sufficient resolution and contrast.
Common causes include low resolution, heavy distortion, very low contrast, or glare on the image. Try a higher resolution scan or better lighting when using the webcam.
Yes! Click the "Webcam" tab and grant camera permission. The scanner will continuously scan and automatically decode when a QR code is detected in frame.
QR codes can encode URLs, plain text, Wi-Fi network credentials, vCards (contacts), email addresses, phone numbers, SMS messages, calendar events, and geographic locations.
There's no strict server-side limit since processing is local, but very large images (above 10MB) may slow down decoding. Most standard QR images are well under this threshold.
A QR code reader is a tool that interprets the visual pattern of a Quick Response (QR) code and extracts the encoded data — whether that's a URL, a block of text, contact information, or Wi-Fi credentials. Traditionally, scanning a QR code required a smartphone camera and a dedicated app. Today, browser-based QR code readers like this one can perform the same task entirely on your desktop or laptop, using only JavaScript and your device's camera or an image file.
This tool supports three scanning methods: uploading an image from your local drive, entering a direct URL to a QR image hosted online, or using your webcam to scan in real time. All decoding is performed client-side — your images are never sent to any server.
A QR code is a two-dimensional matrix barcode that encodes data as a pattern of black and white squares. Each QR code contains finder patterns in three corners, an alignment pattern, timing patterns, format information, and the actual data modules. The decoder must first locate these structural markers, then apply error correction (QR codes use Reed-Solomon codes) to recover the underlying data even if part of the image is damaged or obscured.
This tool uses two complementary decoding libraries: the native browser BarcodeDetector API (available in Chrome, Edge, and Safari) and the jsQR JavaScript library as a fallback. By combining both, the tool achieves high decode success rates across all modern browsers without requiring any plugin or installation.
The most common use case is uploading a saved QR code image. Simply drag and drop a file onto the drop zone or click to browse. Once the image loads, click "Decode QR Code." The tool renders the image to an offscreen HTML canvas, then passes the pixel data to the decoding engine. Results appear in under a second for most images.
For best results, use images where the QR code is clearly visible, has good contrast between the dark modules and the light background, and is not heavily rotated or skewed. The tool handles minor perspective distortion, but severely warped codes may fail to decode.
The webcam scanner uses the browser's getUserMedia API to access your camera stream. Frames are continuously sampled and passed to the decoder at a rate that balances performance and responsiveness. When a QR code is detected in the frame, decoding stops automatically and the result is displayed. This is ideal for scanning printed QR codes, product packaging, or screens without needing a separate mobile device.
If your device has multiple cameras (e.g., a laptop with a built-in camera and an attached USB webcam), you can switch between them using the camera selector dropdown that appears after granting permission.
If you have a publicly accessible QR code image hosted online, you can paste its direct URL into the URL tab. The tool fetches the image and processes it the same way as an uploaded file. Note that due to browser security restrictions (CORS), some image URLs from third-party domains may not be directly loadable. In those cases, saving the image locally and uploading it is recommended.
QR codes are extremely versatile and can encode a wide range of data types:
WIFI:T:WPA;S:NetworkName;P:Password;; format, allowing devices to join networks automatically.mailto: URI scheme to pre-fill an email compose window.tel: URI scheme.smsto: scheme with an optional pre-filled message body.geo: URI scheme for map links.Because all decoding is performed locally in your browser, this tool is inherently private. No image data, decoded content, or usage information is sent to any external server. The only network request made is loading the jsQR library from a CDN on first use (cached thereafter). Webcam access is also local — your camera stream never leaves your device.
From a security standpoint, always exercise caution with URLs decoded from QR codes you didn't generate yourself. QR codes are a common vector for phishing ("QRishing") because the encoded URL is not human-readable before scanning. Always inspect decoded URLs before clicking — this tool displays the full URL so you can verify it before opening.
Dedicated mobile QR scanning apps are fast and convenient on phones, but they require installation and often request permissions beyond what's necessary. A browser-based tool like this one works on any device with a modern browser — desktop, laptop, tablet, or phone — without requiring any installation. It's particularly useful when you receive a QR code image via email or a chat application and need to decode it immediately without switching devices.