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QR Code Generator & Reader

Free online QR code generator and reader. Create QR codes from text or URLs and decode QR codes from uploaded images instantly.

AI developer workflow fit

Use QR Code Generator & Reader while building with AI coding assistants, agents, and LLM workflows: validate generated output, transform payloads, debug integrations, and prepare reliable inputs without leaving your browser.

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What Is a QR Code Generator & Reader?

A QR (Quick Response) code is a two-dimensional barcode that stores data such as URLs, text, contact information, or Wi-Fi credentials. QR codes can be scanned by smartphone cameras or dedicated readers to quickly access the encoded information. This tool lets you both generate custom QR codes from any text or URL and read/decode existing QR codes by uploading an image. QR codes were invented in 1994 by Denso Wave for tracking automotive parts and have since become ubiquitous in marketing, payments, authentication, and everyday information sharing.

How to Use the QR Code Generator & Reader

  1. To generate a QR code: Switch to the 'Generate' tab, enter your text or URL in the input field, and adjust the size slider to your preferred dimensions.
  2. The QR code is generated in real-time as you type. Click 'Download PNG' to save the QR code image to your device.
  3. To read a QR code: Switch to the 'Read' tab and upload an image file containing a QR code.
  4. The tool will automatically scan the image and display the decoded content, which you can copy to your clipboard.

Common Use Cases

  • Marketing & Advertising — Create QR codes for flyers, posters, and business cards that link to your website, social media profiles, or promotional landing pages.
  • Wi-Fi Sharing — Generate a QR code containing your Wi-Fi network name and password so guests can connect by simply scanning the code.
  • Event Tickets & Check-in — Encode ticket information or registration IDs into QR codes for fast event check-in and attendance tracking.
  • Extracting Data from QR Images — Upload screenshots or photos containing QR codes to quickly extract the encoded URL, text, or data without needing a phone camera.

FAQ

What types of data can I encode in a QR code?
You can encode any text string including URLs, plain text, email addresses, phone numbers, Wi-Fi credentials, vCard contact info, and more. The amount of data depends on the error correction level, but typically up to around 4,296 alphanumeric characters.
What image formats are supported for QR code reading?
The reader supports all common image formats including PNG, JPEG, GIF, and WebP. For best results, use a clear, high-contrast image where the QR code is not too small or distorted.
Is there a size limit for generated QR codes?
You can generate QR codes between 100px and 500px using the size slider. Larger QR codes are easier to scan from a distance, while smaller ones work well for digital displays and printed materials.
Are the generated QR codes free to use commercially?
Yes, QR codes generated by this tool are standard QR codes with no watermarks or restrictions. You can use them freely for personal, commercial, or any other purpose.

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