About

QR Code Generator

Generate QR codes from text or URLs with customizable size and error correction

Text or URL0 chars
Size
Error Correction
Foreground Color
#000000
QR Code Preview

Enter text and click Generate to create QR code

About This Tool

QR codes (Quick Response codes) are two-dimensional barcodes that can store various types of data, including URLs, plain text, contact information, and more. They are widely used in marketing, product packaging, event tickets, and digital payments because they can be scanned quickly by any smartphone camera. Our free online QR code generator creates QR codes entirely in your browser using client-side JavaScript, ensuring your data never leaves your device. You can customize the QR code size, foreground color, and error correction level to suit your needs. The generated QR codes are downloadable as PNG images and can be used in print or digital media.

How to Use

  1. Enter the text or URL you want to encode into the QR code in the input field. This can be a website URL, email address, phone number, Wi-Fi credentials, or any plain text.
  2. Select the desired QR code size from the options: 128px for small icons, 256px for standard use, or 512px for high-resolution printing.
  3. Choose the error correction level based on your use case. Higher levels (Q, H) allow the QR code to be read even if partially damaged or obscured, but they increase the code density. Lower levels (L, M) produce simpler codes suitable for clean environments.
  4. Optionally customize the foreground color using the color picker. The default is black, which provides the best scan reliability. Ensure sufficient contrast between the foreground and white background for reliable scanning.
  5. Click "Generate" to create your QR code. The preview will update automatically as you change settings. Download the QR code as a PNG image or copy the data URL to your clipboard.

Frequently Asked Questions

QR codes use Reed-Solomon error correction to recover data if the code is damaged. Level L recovers up to 7% of data, Level M up to 15%, Level Q up to 25%, and Level H up to 30%. Higher correction levels produce denser QR codes but can withstand more damage. For printed materials that may get scratched or partially covered, use Level Q or H. For digital use in clean environments, Level L or M is sufficient.
The maximum data capacity depends on the error correction level and data type. A QR code can store up to 7,089 numeric digits, 4,296 alphanumeric characters, or 2,953 bytes of binary data at the lowest error correction level (L). Higher error correction levels reduce the maximum capacity. For URLs, a typical QR code can hold several hundred characters comfortably.
Yes. All QR code generation happens entirely in your browser using client-side JavaScript. Your text and URLs are never sent to any server. The QR code is generated locally and the PNG image is created in your browser before download.
Yes. You can change the foreground color using the color picker. However, for reliable scanning, always ensure there is sufficient contrast between the foreground color and the white background. Very light colors or colors similar to white may cause scanning issues. Dark colors like black, navy, or dark green work best.
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