QR Code Generator
Generate QR codes online for URLs, text, emails, calls, SMS, WhatsApp, WiFi, contacts, and events. Customize colors, logos, frames, and more. Works offline in your browser.
Choose QR Code Type
Complete the content to generate QR code
QR Code Tips
- QR codes use high error correction by default, allowing them to work even when partially damaged
- Larger QR codes are easier to scan from a distance
- Ensure good contrast between foreground and background colors
- Test your QR code with multiple devices before printing or sharing
- Keep logos small (10-20% of QR code size) to maintain scannability
What is a QR Code?
A QR code (Quick Response code) is a two-dimensional barcode that can store various types of data, including text, URLs, contact information, WiFi credentials, and more. QR codes were invented in 1994 by Denso Wave, a Japanese company, and have become ubiquitous in modern digital communication.
QR codes consist of black squares arranged in a square grid on a white background. They can be read by smartphones, tablets, and dedicated QR code scanners. The codes use error correction algorithms, allowing them to be scanned even when partially damaged or obscured.
Read more about Complete Guide to QR Codes: Generation, Uses, and Best Practices
Common Uses for QR Codes
- Website URLs: Quickly share website links without typing long URLs
- Contact Information: Share vCard contact details for easy contact addition
- WiFi Credentials: Encode WiFi network name and password for easy connection
- Email and SMS: Pre-fill email addresses or SMS messages with QR codes
- Payment Information: Encode payment details for mobile payments
- Event Tickets: Use QR codes for event entry and verification
- Product Information: Link physical products to digital content
- Marketing: Bridge offline and online marketing campaigns
Error Correction
QR codes use error correction algorithms that allow them to be scanned even when partially damaged or obscured. This QR Code Generator uses high error correction (H level) by default, which means up to ~30% of the code can be damaged while still remaining scannable.
High error correction provides the best reliability and ensures your QR codes will work even in challenging conditions, such as when printed on materials that may get damaged, partially covered, or scanned from difficult angles.