The QR Code Generator is a versatile tool for creating custom QR codes for various purposes including URLs, text, WiFi credentials, contact information, and more. With advanced customization options for size, colors, and error correction levels, this tool generates high-quality QR codes suitable for both digital and print use. Perfect for marketing campaigns, business cards, event management, and contactless sharing of information.

How to Generate QR Codes

Select the type of QR code: URL, Text, WiFi, Contact, or Email
Enter the required information in the input fields
Customize size, colors, and error correction level
Preview the generated QR code in real-time
Download the QR code in PNG, JPG, or SVG format
Test the QR code with a mobile device scanner

Advanced QR Code Features

Multiple QR code types: URL, Text, WiFi, Contact (vCard), Email, SMS
Customizable size from 100x100 to 2000x2000 pixels
Color customization for foreground and background
Four error correction levels (L, M, Q, H)
Multiple download formats: PNG, JPG, SVG
Real-time preview as you type
Batch QR code generation
Logo embedding capability
High-resolution output for print quality
Mobile-optimized interface

Why Use QR Codes?

QR codes provide instant, contactless access to digital information through mobile devices. They bridge the gap between physical and digital worlds, enabling quick sharing of URLs, contact information, WiFi credentials, and more without manual typing. QR codes enhance user experience, reduce errors in data entry, and provide measurable interaction analytics. They're essential for modern marketing, event management, restaurant menus, business networking, and any scenario requiring quick information transfer. With widespread smartphone adoption, QR codes have become a standard for efficient information sharing.

Versatile Applications

Marketing & Advertising

Create QR codes for marketing campaigns, product information, promotional offers, and landing pages. Track engagement and conversions easily.

Business Networking

Generate vCard QR codes for business cards, email signatures, and professional profiles to enable instant contact sharing.

Event Management

Use QR codes for event tickets, registration, check-ins, and sharing event information, schedules, and venue details.

Restaurant & Hospitality

Create contactless menus, table ordering systems, feedback forms, and WiFi sharing for enhanced customer experience.

Education & Training

Share course materials, assignment links, resource documents, and supplementary content with students quickly and efficiently.

Real Estate & Property

Link property listings, virtual tours, contact information, and detailed property information for potential buyers and renters.

QR Code Best Practices

Use high error correction for QR codes that might be damaged
Test QR codes on multiple devices before deployment
Keep data content concise for better scanning reliability
Ensure sufficient contrast between foreground and background colors
Provide context about what the QR code contains
Use appropriate size for viewing distance (minimum 2x2 cm)
Include a call-to-action near the QR code
Consider the scanning environment (lighting, angle, distance)
Keep QR codes simple and avoid over-customization
Regularly test and update QR code destinations

QR Code Technology

QR (Quick Response) codes are two-dimensional barcodes invented by Denso Wave in 1994. They use Reed-Solomon error correction, allowing up to 30% of the code to be damaged while remaining readable. QR codes can store up to 4,296 alphanumeric characters or 7,089 numeric characters across 40 different versions with increasing data capacity. The tool implements ISO/IEC 18004 standards for QR code generation, supporting multiple encoding modes including numeric, alphanumeric, byte, and Kanji. Error correction levels (L: 7%, M: 15%, Q: 25%, H: 30%) determine robustness versus data capacity. The generation process involves data encoding, error correction code generation, module placement, and mask pattern application for optimal scanning performance.

Related Tools

URL Encoder/Decoder

Encode URLs properly before embedding in QR codes

Image Compressor

Optimize QR code images for web and print use

Base64 Encoder/Decoder

Encode data for embedding in QR codes

Frequently Asked Questions

What's the maximum amount of data I can store in a QR code?

QR codes can store up to 4,296 alphanumeric characters, 7,089 numeric characters, or 2,953 bytes of binary data, depending on the version and error correction level.

Which error correction level should I choose?

Use L (7%) for clean environments, M (15%) for general use, Q (25%) for outdoor use, and H (30%) for industrial or damaged environments where scanning conditions may be poor.

Can I customize QR code colors?

Yes, you can customize foreground and background colors, but ensure sufficient contrast for reliable scanning. Avoid very light foreground colors or very dark backgrounds.

What size should my QR code be for printing?

For print, QR codes should be at least 2x2 cm (0.8x0.8 inches) for close-up scanning. Larger sizes are needed for scanning from greater distances.

Do QR codes expire?

QR codes themselves don't expire, but the content they point to (like URLs) might become unavailable. Static QR codes remain functional as long as the destination is active.