Free QR Code Reader & Scanner
Decode and extract information from QR codes instantly. Upload an image or scan live with your webcam or mobile camera.
- 100% free
- Files stay on your device
- No sign-up, no watermark
Drop QR code image here, or browse
Supports PNG, JPG, WEBP, GIF, and SVG up to 25MB
What is QR Code Reader & Scanner?
The Free QR Code Reader & Scanner provides high-speed 2D matrix barcode decoding through your browser using hardware-accelerated computer vision algorithms. Supporting both real-time webcam video stream scanning and static file uploads (PNG, JPG, WEBP, GIF, SVG), the scanner decodes Quick Response matrices to extract embedded text payloads, website URLs, Wi-Fi network configurations, vCard contact information, cryptocurrency wallet addresses, and multi-factor authentication TOTP setup secrets. This utility is invaluable when you receive a digital flyer or meeting invite containing a QR code on your laptop screen and cannot easily scan it with your smartphone, or when you need to inspect an unknown QR code safely without automatically opening a malicious URL in a mobile browser. The decoder runs strictly in client memory, meaning no scanned URLs or credentials leave your computer. One physical constraint to consider is that heavily damaged, smudged, or low-resolution camera feeds where alignment position patterns (the three square finder corners) are occluded will fail mathematical Reed-Solomon error correction and cannot be recovered.
How to use QR Code Reader & Scanner
- 1
Select Input Method
Choose between activating your device webcam for live video matrix recognition or uploading an image file containing a target QR code from your storage.
- 2
Locate & Decode Matrix
Align the QR code within the bounding viewfinder reticle or allow the canvas parser to automatically detect finder patterns in the uploaded graphic.
- 3
Inspect Payload & Copy Data
Review the decoded raw string or parsed payload structure and click to copy data to your clipboard or open verified URLs safely in a new browser tab.
Frequently asked questions
Does this scanner automatically visit links found in QR codes?
No. To protect you against phishing and drive-by malware attacks, the reader displays the full plain-text URL and domain for your manual verification before you choose to open it, preventing accidental navigation to unverified external destinations.
Can I scan QR codes displayed on other open browser windows or desktop apps?
Yes. You can take a quick screenshot using your operating system shortcut (e.g., Win+Shift+S or Cmd+Shift+4) and paste or upload the screenshot image directly into the scanner to decode on-screen QR codes in seconds.
How does the scanner handle inverted or colored custom QR codes?
The decoding pipeline applies dynamic thresholding and adaptive contrast normalization to successfully decode white-on-black, brand-tinted, and custom-styled QR codes that standard laser scanners or basic camera apps often reject.
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