Online QR Code Scanner | Decode QR Images Instantly

Online QR Code Scanner & Decoder

Scan and read QR codes from images instantly. Simply upload a photo or screenshot of a QR code to extract URLs, contact information, or encrypted text. 100% private: your image is processed locally in your browser and never uploaded to any server.

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Click to upload
or drag and drop QR image

Supports JPG, PNG, WebP, and SVG.

No Image Uploaded
Decoded Details
Waiting for QR code…

How to Scan a QR Code from an Image

Scanning a QR code usually requires a smartphone camera, but what if you have a QR code saved as an image on your computer or a screenshot from a website? Our online QR code decoder allows you to read these codes without needing an external device.

  1. Upload the Image: Drag and drop your image file into the scanner or click the upload area to browse your files.
  2. Automatic Decoding: Our system immediately processes the pixels using a client-side JavaScript engine to find the QR pattern.
  3. View Results: The decoded information—whether it’s a website link, a plain text message, or WiFi login data—will appear instantly in the result box.

100% Privacy-First QR Scanning

Standard online QR scanners often upload your images to their remote servers for processing. This poses a significant privacy risk, especially if the QR code contains sensitive personal data, private URLs, or login credentials.

Zero Data Transmission: This tool uses the FileReader API and CanvasRenderingContext2D to decode the QR code strictly within your browser’s local memory. Your images are never sent over the internet, making it the safest way to decode QR codes in 2026.

Supported QR Data Types

QR codes (Quick Response codes) can store various types of information. Our scanner is optimized to handle all standard formats:

  • URLs & Website Links: Instantly extract web addresses for easy copying.
  • Plain Text: Read notes, instructions, or secret messages embedded in codes.
  • WiFi Configurations: Decode WiFi SSID and password strings (e.g., WIFI:S:Network;P:Password;;).
  • VCard & Contact Info: Extract names, phone numbers, and email addresses from digital business cards.

Troubleshooting: Why can’t the scanner read my QR code?

If the decoder fails to show results, check the following common issues:

  • Image Quality: Ensure the QR code isn’t too blurry or pixelated. A clear, high-resolution screenshot works best.
  • Contrast: QR codes rely on the contrast between dark and light modules. If the colors are too similar (e.g., light gray on white), the scanner may struggle to identify the pattern.
  • Rotation: While our scanner can handle some rotation, keeping the QR code upright or at a 90-degree angle ensures the highest decoding accuracy.

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Frequently Asked Questions

Is this QR scanner free to use?

Yes. Our QR code scanner is 100% free with no daily limits or hidden subscriptions. It is part of our commitment to providing high-quality, privacy-focused developer tools.

Can I scan a QR code from a PDF?

Currently, our tool supports image formats (PNG, JPG, WebP). If your QR code is inside a PDF, simply take a screenshot of it and upload the screenshot image to decode it.

Does this work on mobile browsers?

Absolutely. You can use this tool on Chrome, Safari, or Firefox on your mobile device. You can even choose “Take Photo” when clicking the upload button to scan a physical code using your phone’s camera interface.

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