QR Code Generator
Create custom styled QR codes with colors, patterns, gradients and logo
Content & Settings
QR Code
QR Code Info
Size: —
Type: —
Error correction: —
Data: —
Style: —
Features
- 6 dot pattern styles (square, dots, rounded, classy…)
- 3 eye (corner) styles
- Solid colors & linear/radial gradients
- Logo / image embedding in center
- 8 quick color themes
- Download PNG, SVG, JPEG
- URL, WiFi, vCard, Email QR types
- 100% browser-side — nothing uploaded
Why use Tool Matrix QR Code Generator?
Create professional QR codes instantly for URLs, contact information, Wi-Fi credentials, and more. Our QR Code Generator offers customization options while keeping all processing local—your data stays on your device, never transmitted to external servers.
- Multiple Data Types — Generate QR codes for URLs, text, emails, phone numbers, and Wi-Fi.
- Customizable Design — Adjust colors, add logos, and control error correction levels.
- High Resolution — Download QR codes in SVG or PNG format for print or digital use.
- Real-time Preview — See your QR code update as you modify settings.
About QR Code Technology
QR (Quick Response) codes are two-dimensional barcodes that can store significantly more data than traditional barcodes. Originally developed for tracking automotive parts, QR codes are now widely used in marketing, payments, authentication, and information sharing. Our QR Code Generator creates professional, scannable codes with complete customization options while ensuring all processing happens locally in your browser for maximum privacy.
Unlike many online QR code generators that transmit your data to external servers, our tool generates QR codes entirely within your web browser. This means sensitive information like contact details, WiFi credentials, or proprietary URLs never leave your computer, providing enterprise-level security for business and personal use.
Key Features & Customization Options
- Multiple Data Type Support — Generate QR codes for URLs, plain text, contact information (vCard), WiFi networks, email addresses, SMS messages, phone numbers, and calendar events.
- Advanced Customization — Customize colors (foreground and background), dot patterns (square, rounded, dots, classy), eye (corner) styles, and add center logos or images.
- Error Correction Levels — Choose from four error correction levels (L: 7%, M: 15%, Q: 25%, H: 30%) to ensure scannability even if the code is partially damaged.
- High-Resolution Export — Download QR codes in SVG (vector) or PNG (raster) formats at multiple resolutions (128×128 to 512×512 pixels) for both digital and print use.
- Real-time Live Preview — See your QR code update instantly as you adjust settings, with visual feedback on scannability and design aesthetics.
- Logo Integration — Upload and position company logos or brand images in the center of QR codes while maintaining scannability through proper error correction.
- Batch Generation — Create multiple QR codes with different data but consistent styling for campaigns or product labeling.
- Scan Testing — Built-in guidance on optimal QR code placement, sizing, and contrast for maximum scannability across devices.
- Local Processing — All QR code generation happens in your browser; no data is transmitted to external servers.
- No Watermarks — Download clean, professional QR codes without any watermarks or branding restrictions.
Common Use Cases
QR codes are versatile tools with applications across many industries:
- Marketing & Advertising: Link print materials to websites, promotions, or video content for interactive campaigns.
- Business Cards: Create vCard QR codes that allow smartphones to instantly save contact information.
- WiFi Access Sharing: Generate QR codes that automatically connect devices to WiFi networks without manual password entry.
- Product Packaging: Link to product information, manuals, or authenticity verification on physical products.
- Event Management: Create QR codes for event tickets, registration, or session information.
- Restaurant Menus: Provide digital menus that customers can scan to view on their phones.
- Payment Systems: Generate payment QR codes for mobile payment platforms and digital wallets.
- Educational Materials: Link textbooks or handouts to supplementary online resources.
- Healthcare: Provide quick access to patient information, medication details, or appointment scheduling.
How to Create Effective QR Codes
Follow these best practices for creating scannable, effective QR codes:
- Choose the Right Data Type: Select the appropriate QR code type (URL, contact, WiFi, etc.) for your specific use case.
- Optimize Size and Resolution: For print materials, use higher resolutions (300-600 DPI). For digital use, ensure the code is large enough to scan easily.
- Select Appropriate Error Correction: Use higher error correction (Q or H) for codes that may be damaged or for codes with logos.
- Maintain Sufficient Contrast: Ensure strong contrast between the QR code and background (dark on light is standard).
- Test Before Deployment: Always test your QR code with multiple devices and scanning apps before finalizing.
- Provide Context: Include brief instructions near the QR code explaining what it does and how to scan it.
Technical Specifications
Our QR Code Generator follows industry standards and specifications:
- QR Code Standard: ISO/IEC 18004:2015 compliant QR codes
- Data Capacity: Supports up to 2,953 bytes (alphanumeric) or 4,296 characters (numeric)
- Version Support: QR code versions 1-40 (21×21 to 177×177 modules)
- Error Correction: Reed-Solomon error correction with four levels (L, M, Q, H)
- Encoding Modes: Numeric, alphanumeric, byte/binary, and Kanji encoding support
- Output Formats: SVG (vector, scalable) and PNG (raster, fixed resolution)
Privacy & Security Assurance
All QR code generation happens entirely within your web browser using JavaScript. Your data (URLs, contact information, WiFi passwords, etc.) is never transmitted to our servers or any external service. This local processing ensures:
- Complete Privacy: Sensitive information like WiFi passwords or contact details remains on your computer
- No Data Logging: We don't store, log, or monitor any data you use to generate QR codes
- Offline Capability: Once loaded, the tool works without an internet connection
- Enterprise Security: Suitable for generating QR codes with confidential business information
Frequently Asked Questions
What's the difference between SVG and PNG formats?
SVG (Scalable Vector Graphics) is a vector format that can be scaled to any size without quality loss, ideal for print and responsive design. PNG (Portable Network Graphics) is a raster format with fixed resolution, suitable for web use where specific dimensions are needed.
How much data can a QR code store?
QR codes can store up to 2,953 bytes of data (about 2.9KB). This equates to approximately 4,296 numeric characters, 1,817 Kanji characters, or 2,953 alphanumeric characters, depending on the encoding mode used.
What error correction level should I use?
Use L (7%) for simple applications with clean environments, M (15%) for general use, Q (25%) for codes that may experience minor damage, and H (30%) for critical applications or codes with embedded logos.
Can QR codes be colorized?
Yes, QR codes can use any colors as long as there's sufficient contrast between the foreground and background. Dark colors on light backgrounds work best. Avoid using red or similar colors that some scanners may struggle with.
How do I add a logo to my QR code?
Use the logo upload feature and ensure you select a higher error correction level (Q or H) to compensate for the logo covering part of the code. Position the logo in the center and keep it relatively small (15-30% of the code area).
Are generated QR codes trackable?
No, QR codes generated with our tool are static and contain only the data you provide. We don't add tracking pixels or redirects. For analytics, you would need to use a URL shortener with tracking capabilities before generating the QR code.