FreeQ.One

QR Code Generator

Enter text or URL to encode:

QR Types

Enter some content to generate a QR code

Scan the QR code with any device to decode its content.

Generate customizable QR codes instantly. Part of the freeq.one tools suite.

About This Tool

QR codes (Quick Response codes) are two-dimensional barcodes that can be scanned by smartphone cameras and QR readers to instantly access encoded information. They can store URLs, text, contact information, WiFi credentials, email addresses, SMS messages, phone numbers, and more. This QR code generator creates fully customizable QR codes with support for multiple content types, error correction levels (L, M, Q, H), foreground and background color customization, and center logo embedding for branded codes.

QR codes have become ubiquitous in marketing, hospitality, retail, and everyday life. Restaurants use them for contactless menus, businesses share WiFi passwords without typing, and marketers track engagement through QR code scans. The tool includes presets for common QR code types that pre-fill the relevant fields, making it easy to generate WiFi login codes, vCard business cards, and event links without guessing the correct format. You can download the generated QR code as a PNG image or save it to your collection for later use.

Common Use Cases

  • Sharing WiFi credentials with guests without revealing the password in plain text
  • Building digital business cards with vCard QR codes for contactless networking
  • Promoting event links, restaurant menus, and product pages with scannable codes
  • Adding QR codes to product packaging for warranty registration, manuals, or reordering
  • Creating QR codes for email sign-ups, newsletter subscriptions, and SMS opt-ins
  • Embedding branded QR codes on marketing materials with company logos for recognition

Pro Tips

  • Use higher error correction (M or H) when embedding a center logo — this ensures the code remains scannable even with the logo covering part of the pattern
  • Always test your QR code with multiple devices and scanner apps before printing
  • Keep a minimum 2cm (about 0.8 inches) of quiet margin around the QR code for reliable scanning
  • Stick to high-contrast color combinations — dark foreground on light background works best for reliable scanning

Frequently Asked Questions

What is the maximum data a QR code can store?
A QR code can store up to 7,089 numeric characters, 4,296 alphanumeric characters, or 2,953 bytes of binary data. The actual limit depends on the error correction level and QR code version used.
What are error correction levels in QR codes?
QR codes have four error correction levels: L (7% recovery), M (15%), Q (25%), and H (30%). Higher levels allow the code to be scanned even when partially damaged or obscured, but they reduce the maximum data capacity. Use M or H when embedding a logo.
Can I change the colors of a QR code?
Yes. This tool allows you to customize both foreground and background colors. However, ensure sufficient contrast between the two colors for reliable scanning. Dark foreground on a light background is the most reliable combination.
Do QR codes expire?
QR codes generated by this tool do not expire — they are static codes that encode the data directly. Unlike dynamic QR codes that redirect through a URL shortener, static QR codes work indefinitely and do not require a subscription.

Part of the FreeQ.One tools suite.