QR Code Generator
Free online QR code generator supporting text, URLs, WiFi, email, phone and more, with customizable styles and high-quality output
Why Choose Our QR Code Generator?
Instant Generation
Real-time preview with immediate high-quality QR code generation as you type.
Privacy & Security
All processing happens locally in your browser. No data is uploaded or stored.
Professional Quality
Extensive customization options for personal and commercial design needs.
Free QR Code Generator - Professional Online Tool
Create high-quality QR codes instantly with support for 6 practical types: text, URLs, WiFi settings, email, phone, and SMS. Completely free with no registration required. Features professional customization options and high-resolution downloads for both personal and commercial use.
Complete QR Code Solution
🎯 Supported QR Code Types
Text QR Codes
Perfect for storing plain text information like product descriptions, contact details, or notes. Can store up to 4,296 characters, making it the most versatile QR code type.
URL QR Codes
Direct users to specific web pages instantly. Widely used for marketing campaigns, product pages, and social media links. Compatible with all major browsers.
WiFi QR Codes
Automatically connect devices to WiFi networks without manual password entry. Supports WPA/WPA2, WEP encryption, and open networks. Ideal for hotels and cafes.
⚙️ Technical Features & Benefits
Advanced Error Correction
Uses Reed-Solomon error correction algorithm, ensuring QR codes remain scannable even when partially damaged or obscured. Error correction up to 30% guarantees reliability in various environments.
Universal Compatibility
Generated QR codes work with all mainstream scanning devices including smartphones, tablets, and professional scanners. Supports iOS, Android, Windows, and other operating systems.
High-Resolution Output
Supports up to 1024×1024 pixel output, meeting print-quality requirements. Whether for business cards, posters, or outdoor advertising, clarity is guaranteed.
QR Code Configuration
Select the appropriate QR code type for your needs. Each type is optimized for the best scanning experience.
Content Settings
Style Settings
QR Code Preview
Enter content to generate QR code
Quick Start Guide
Professional Tips
📱 Optimal Scanning
- • Maintain sufficient contrast (dark foreground + light background)
- • Choose appropriate size (256×256 or higher recommended)
- • Leave adequate margin space
🛡️ Error Correction Levels
- • Low (7%) - Suitable for clean environments
- • Medium (15%) - Recommended for daily use
- • High (30%) - Harsh environments or long-term storage
Use Cases
🏢 Business
Business cards, brochures, product packaging, store promotion
🏠 Personal
WiFi sharing, contact info, event invitations
📚 Education
Course materials, online links, assignment submission
Frequently Asked Questions
Why won't my QR code scan?
Check these factors: 1) Ensure sufficient contrast; 2) Increase QR code size; 3) Use higher error correction; 4) Verify content isn't too long; 5) Ensure adequate margins. If issues persist, regenerate the code.
What is error correction level?
Error correction determines damage tolerance. L-level (7%) suits clean indoor environments; M-level (15%) is optimal for daily use; Q-level (25%) handles minor wear; H-level (30%) works in harsh conditions or long-term storage.
How much data can QR codes store?
Numeric data: 7,089 characters; Alphanumeric: 4,296 characters; Binary data: 2,953 bytes; Kanji characters: 1,817 characters. Actual capacity varies with error correction level.
Are generated QR codes secure?
Our tool runs entirely in your browser locally, with no data uploaded to servers. Your information remains completely private and the generation process is 100% secure.
Can I use QR codes commercially?
Absolutely! Our QR code generator is completely free, and generated codes can be used for any commercial purpose including product packaging, marketing materials, and website promotion without licensing fees.
How to ensure good print quality?
Use 256×256 pixels or higher resolution, ensure minimum 2×2 cm when printed. Choose high-contrast color combinations, avoid similar colors. Test print samples before mass production.
Industry Applications
Retail & Commerce
- • Product information and pricing
- • Customer reviews and feedback
- • Membership registration and coupons
- • Online store traffic direction
Hospitality
- • Automatic WiFi connection setup
- • Digital menus and ordering systems
- • Room services and facility guides
- • Customer satisfaction surveys
Education
- • Course materials and downloads
- • Online exams and surveys
- • Quick access to learning resources
- • Parent-school communication
Corporate
- • Employee info and contacts
- • Meeting room booking and check-in
- • Company WiFi and network setup
- • Digital business card exchange
QR Code Design Best Practices
1Size & Resolution
Minimum Size: Recommend at least 2×2 cm to ensure most smartphones can accurately recognize.
Print Resolution: Choose 300DPI or higher resolution to guarantee clear, sharp print quality.
Digital Display: 256×256 pixels recommended for web use, adjust accordingly for mobile apps.
2Color & Contrast
High Contrast: Dark foreground with light background ensures sufficient visual contrast.
Avoid Gradients: Solid colors work better, avoid gradients or complex patterns.
Color Choice: Black and white combination has highest recognition rate, test colored combinations carefully.
3Environment & Placement
Adequate Margins: Leave white space equivalent to at least 4 module widths on all sides.
Flat Surface: Avoid curved or uneven surfaces that affect scanning performance.
Proper Height: Place at heights and angles easily accessible for user scanning.