Free Online QR Code Generator
Generate QR codes from text, URLs, and other data. Batch generation, QR decoding, and camera scanning supported.
Key Features
Fast Processing
Quick QR code generation from any text or URL.
Batch Generation
Generate multiple QR codes at once. Upload CSV or enter multiple lines.
QR Decoding
Decode QR codes from images, URLs, or camera scan. Extract URLs, vCards, WiFi credentials.
Privacy Protected
All processing runs locally in your browser. No data sent to servers.
Frequently Asked Questions
Getting Started
What error correction level should I choose?
For printed QR codes, use H (High, 30% recovery) to tolerate smudging or damage. For digital-only use (screens, emails), M (Medium, 15%) is sufficient and scans faster.
What is the maximum data I can encode?
QR codes can hold up to 2,953 bytes of binary data or 4,296 alphanumeric characters. For long URLs, use a URL shortener first, then encode the short link.
Can I batch-generate 500 QR codes in one go?
Batch mode supports up to 100 lines. For more than 100, split into multiple batches — browser memory is the limiting factor. 100 QR codes at 200x200px produces a ~2-5 MB ZIP.
Are the QR codes compatible with WeChat and Alipay?
Yes, they follow the ISO/IEC 18004 standard. However, apps interpret content based on URI schemes — use platform-specific schemes for mini-program or payment flows.