क्यूआर कोड जेनरेटर
यूआरएल, वाईफाई, वीकार्ड, एसएमएस, ईमेल और फोन नंबरों के लिए उच्च गुणवत्ता वाले क्यूआर कोड बनाएं। रंग, आकार और त्रुटि सुधार को अनुकूलित करें, फिर सीधे अपने ब्राउज़र में PNG या PDF डाउनलोड करें।
क्यूआर कोड प्रकार
लाइव पूर्वावलोकन
क्यूआर कोड पूर्वावलोकन देखने के लिए सामग्री दर्ज करें
What Is a QR Code Generator?
Use this QR code generator to turn links, WiFi details, contact cards, messages, and other short data into scannable codes. You can preview changes instantly, adjust colors and size, and export files for print or digital sharing.
टेक्स्ट क्यूआर कोड
4,296 वर्णों तक सादा पाठ सामग्री
यूआरएल/लिंक क्यूआर कोड
स्वचालित HTTPS पहचान के साथ वेबसाइट लिंक
वाईफाई क्यूआर कोड
पूर्ण नेटवर्क क्रेडेंशियल्स (WPA/WPA2/WEP/Open)
vCard संपर्क QR कोड
vCard 3.0 मानक का पालन करते हुए पूर्ण संपर्क जानकारी
Full contact information following vCard 3.0 standard
SMS QR Codes
Pre-filled text messages with phone numbers
Email QR Codes
Email addresses with subject and body content
Professional Features
तुरंत डाउनलोड करें
Up to 1000x1000 pixels for print quality
त्रुटि सुधार
L(7%), M(15%), Q(25%), H(30%) levels
Custom Styling
Brand colors and personalization
विभिन्न उपयोग आवश्यकताओं को पूरा करने के लिए PNG और PDF प्रारूपों में डाउनलोड करें
PNG for web, PDF for print
लाइव पूर्वावलोकन कार्यक्षमता के साथ टाइप करते ही तुरंत क्यूआर कोड उत्पन्न करें
Instant visual feedback
कहीं भी क्यूआर कोड जनरेशन के लिए मोबाइल उपकरणों के साथ सही संगतता
Perfect for smartphone scanning
Industry Standards
ISO/IEC 18004:2015
Full compliance with international standards
Optimal Data Encoding
Automatic mode selection for minimal size
Reed-Solomon Error Correction
Industry-standard error recovery
Universal Compatibility
Works with all QR code scanners
Security Best Practices
No data storage, client-side processing
Accessibility Standards
WCAG 2.1 compliant interface
Expert Tips for Maximum Scan Success
📱 Mobile Optimization
Use minimum 2cm (0.8 inch) size for print materials. Higher error correction (Q or H level) improves scanning reliability on damaged or low-quality prints.
🎨 Design Guidelines
Maintain sufficient contrast between foreground and background colors. Dark-on-light works best. Avoid gradients or patterns that may interfere with scanning.
🔒 Security Considerations
Always verify QR code destinations before sharing publicly. Use dynamic QR codes for links you may need to update. Consider URL shorteners for analytics.
📊 Performance Metrics
Test your QR code on more than one screen size and camera before publishing. If you plan to print it, verify readability at the final size and leave enough quiet space around the code.
Technical Specifications
Data Capacity
- • Numeric: 7,089 characters max
- • Alphanumeric: 4,296 characters max
- • Binary: 2,953 bytes max
- • Kanji: 1,817 characters max
Version Support
- • Version 1-40 auto-selection
- • 21x21 to 177x177 modules
- • Optimal version for content
- • Minimal data overhead
त्रुटि सुधार
- • Level L: ~7% error recovery
- • Level M: ~15% error recovery
- • Level Q: ~25% error recovery
- • Level H: ~30% error recovery
This QR code generator implements the complete ISO/IEC 18004:2015 standard with Reed-Solomon error correction, automatic data optimization, and mask pattern selection for maximum compatibility and reliability. All codes are generated client-side for privacy and security.
Why Choose Our QR Code Generator?
🏆 Professional Grade Quality
- ✓ Suitable for business, education, and personal use
- ✓ Built around ISO/IEC 18004:2015 QR code guidance
- ✓ Designed for reliable scanning across common devices
- ✓ Professional print quality up to 300 DPI
- ✓ Supports everyday sharing, print, and signage workflows
- ✓ No registration required, completely free
🔒 Privacy and Security
- ✓ 100% client-side processing - no data stored
- ✓ Preview content and export files directly in the browser
- ✓ Designed to keep QR content under your control during generation
- ✓ Open source libraries, transparent operation
- ✓ SSL encrypted connection
- ✓ Straightforward PNG and PDF export without extra setup
QR code workflows for web and print • Browser-based generation • PNG and PDF export
QR Code Generator FAQ
What can I put in a QR code?
This tool supports plain text, URLs, WiFi credentials, vCard contacts, SMS, email, and phone numbers.
What size should I use for a printed QR code?
For printed materials, test the final design at the intended size and keep clear space around the code. Larger sizes and higher contrast usually scan more reliably.
Which error correction level should I choose?
Level M works well for most everyday use. Choose Q or H when the code may be printed small, exposed to wear, or partially covered.
Do QR codes created here expire?
The generated code itself does not expire. It will keep working as long as the encoded destination or content remains valid.
संदर्भ और संसाधन
-
QR Code - Wikipedia
QR कोड तकनीक, इतिहास और तकनीकी विनिर्देशों का पूर्ण अवलोकन।
-
ISO/IEC 18004:2015 - QR Code Standard
QR कोड सिंबोलॉजी विनिर्देशों के लिए आधिकारिक ISO मानक।
संदर्भ और संसाधन
-
QR Code - Wikipedia
QR कोड तकनीक, इतिहास और तकनीकी विनिर्देशों का पूर्ण अवलोकन।
-
ISO/IEC 18004:2015 - QR Code Standard
QR कोड सिंबोलॉजी विनिर्देशों के लिए आधिकारिक ISO मानक।