QR Code Generator — Free Online Tool
Generate a QR code from any text or URL with full control over size, error correction level, and foreground/background colors. The QR code is generated client-side using the qrcode library and can be downloaded as a PNG image at any resolution.
100% client-side. No uploads. Your data never leaves your browser.
How to use QR Code Generator
- Type or paste the text or URL you want to encode.
- Adjust size, error correction level, and colors.
- The QR code preview updates in real time.
- Click 'Download PNG' to save the QR code image.
Frequently Asked Questions
What data can I encode in a QR code?
Any plain text, URLs, email addresses, phone numbers, or structured data like vCard or WiFi credentials. The tool encodes whatever you type as-is.
What is error correction level?
QR codes can still be read even if partially damaged. Level L recovers 7% damage, M: 15%, Q: 25%, H: 30%. Higher levels produce larger/denser QR codes.
What is the maximum data capacity?
At the highest density, a QR code can hold about 3,000 alphanumeric characters. Very long URLs may require high-density codes that are harder to scan.
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