QR Code GeneratorComplete Guide
Everything you need to know about creating effective QR codes with QRStylist.
What Are QR Codes?
QR (Quick Response) codes are two-dimensional barcodes that can store various types of data. Unlike traditional barcodes that only hold numbers, QR codes can encode text, URLs, contact information, WiFi credentials, and much more. The technology is standardized under ISO/IEC 18004.
Invented in 1994 by Denso Wave for tracking automotive parts, QR codes have become ubiquitous in marketing, payments, and information sharing. Modern smartphones can read QR codes instantly using their built-in camera apps - no special app required.
QR codes include built-in error correction, meaning they can still be read even if partially damaged or obscured. This makes them reliable for print materials, product packaging, and outdoor signage.
Types of QR Codes
QRStylist supports 16 different QR code types, each designed for specific use cases. Click any type to access a dedicated generator with detailed documentation.
Links to any website or web page
Connects devices to WiFi networks
Saves contact info to address book
Links to Instagram profile
Links to Facebook page
Links to LinkedIn profile
Links to TikTok profile
Links to YouTube channel
Links to X profile
Crypto payment QR codes
Opens email with address pre-filled
Initiates a phone call
Opens messaging with text ready
Adds events to calendar apps
Opens location in maps
Displays plain text message
Customization Options
Every QR code can be customized to match your brand. Here are the available options:
Colors
Set foreground gradient colors (start and end), background color, and eye colors independently. Maintain sufficient contrast between foreground and background for reliable scanning.
Module Shapes
Choose from square, dots, rounded, extra rounded, fluid, or extra fluid patterns for the data modules. Different shapes can significantly change the visual feel while maintaining scannability.
Eye Shapes
The three position detection patterns (eyes) in corners can be square, circular, or rounded. These help scanners orient the code and can be styled independently.
Logo Overlay
Add a logo to the center of your QR code by uploading an image. The code uses high error correction to remain scannable even with the logo covering part of the data.
Best Practices
Do
- Test your QR code before printing or publishing
- Maintain high contrast between foreground and background (aim for 4.5:1 ratio per WCAG)
- Use a quiet zone (white space) around the code
- Size appropriately for viewing distance (min 2cm for close-up)
- Include a call-to-action near the code
- Use HTTPS URLs for security and trust
Don't
- Use low contrast colors (e.g., light gray on white)
- Invert colors (dark background, light foreground)
- Print too small or stretch/distort the code
- Place on highly textured or reflective surfaces
- Link to content that's not mobile-friendly
- Use a logo that covers more than 30% of the code
Scanning & Compatibility
QR codes generated by QRStylist are compatible with all modern devices and scanning apps.
iPhone (iOS)
Open the Camera app and point at the QR code. A notification banner appears - tap it to open. Works on iOS 11 and later. For WiFi codes, a "Join Network" prompt appears automatically.
Android
Most Android phones (Android 9+) can scan QR codes directly from the Camera app. Some may require enabling the feature in camera settings. Google Lens is also built into most Android devices for enhanced scanning.
Third-Party Apps
Any QR scanner app can read codes from QRStylist. We use standard formats (URL, WIFI:, MECARD:, VEVENT, etc.) that are universally supported.
Standards & Resources
QR codes and the data formats they encode are built on open standards. Here are the official specifications and helpful resources:
QR Code Standard
The official international standard for QR code symbology, including error correction and encoding.
ISO/IEC 18004:2015QR Code Origins
Learn about the history and development from Denso Wave, the original inventors of QR codes.
QRCode.com (Denso Wave)vCard Specification
The IETF standard for electronic business cards used in vCard QR codes.
RFC 6350 (IETF)iCalendar Format
The standard for calendar event data used in event QR codes (VEVENT format).
RFC 5545 (IETF)Accessibility Guidelines
WCAG guidelines for color contrast, important for creating scannable QR codes.
WCAG 2.1 Contrast (W3C)Contrast Checker Tool
Verify your QR code colors meet accessibility contrast requirements.
WebAIM Contrast Checker