QR Code Generator
Generate QR codes for text, URLs, WiFi, contact info, and more.
What is a QR Code?
QR codes store information in a 2D matrix that cameras can scan quickly. They are useful for URLs, WiFi credentials, contact cards, and short text payloads.
Error correction levels
Choose between L, M, Q, H. Higher levels improve robustness against damage or occlusion but increase density. For long URLs, consider shortening the link first.
Reliability tips
- Use high contrast and sufficient physical size.
- Avoid excessive payload length and test across devices.
- Prefer clean backgrounds; keep quiet zones around the code.
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FAQs
What can I store in a QR code?
Text, URLs, WiFi credentials, vCard contact info, and more. Keep payload sizes reasonable for better scan reliability.
What are QR error correction levels?
Levels L, M, Q, and H allow recovery from damage or occlusion. Higher levels increase robustness but also increase code density, which can reduce scannability at small sizes.
How do I ensure a QR code scans reliably?
Use sufficient physical size and contrast, avoid excessive payloads, choose appropriate error correction, maintain a quiet zone, and test across multiple devices.