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Advanced QR Code Generator

Generate free, high-quality QR codes for URLs, text, contacts, WiFi, and more. Customize colors, patterns, and add logos. Instant download as PNG or SVG.

Instant Generation
Custom Colors
Logo Support
Generation History
High-Quality Download
URL
Text
Contact
WiFi
200px
Foreground:
Background:
Pattern Style:
Logo Preview
Logo Size: 25%
https://github.com

Your QR Code

Your QR code will appear here

https://github.com

Master QR Codes: A Complete Guide

What Are QR Codes?

QR (Quick Response) codes are two-dimensional barcodes that can store various types of data. They were originally developed in 1994 by Denso Wave, a subsidiary of Toyota, to track vehicles during manufacturing.

Modern QR codes can store:

  • Website URLs and links
  • Contact information (vCards)
  • WiFi network credentials
  • Text messages and notes
  • Email addresses and phone numbers
  • Calendar events and locations

QR Code Best Practices

To create effective QR codes that users will actually scan:

  • Size matters: Ensure your QR code is large enough to scan easily (minimum 2x2 cm)
  • Contrast is key: Use high contrast between foreground and background colors
  • Test before printing: Always test your QR code with multiple devices
  • Add context: Include a call-to-action explaining what the QR code does
  • Error correction: Use higher error correction for codes with logos or placed in challenging environments

Remember that QR codes should provide genuine value to the user.

Business Applications

QR codes have numerous practical applications for businesses:

  • Marketing: Link to promotions, product pages, or social media
  • Payments: Enable quick mobile payments and transactions
  • Authentication: Verify products, tickets, or documents
  • Contactless menus: Restaurants can display digital menus
  • Business cards: Share contact information instantly
  • WiFi access: Provide easy network connectivity for guests

The possibilities are limited only by your creativity!

How to Use Our QR Code Generator

Choose Your Content Type

Select what type of content you want to encode - URL, text, contact information, or WiFi credentials. Each type has specific fields to ensure your QR code contains the right data format for scanners to interpret correctly.

Customize Appearance

Adjust the size, colors, and pattern style of your QR code. Use our color pickers to match your brand colors, and choose between square, circle, or rounded patterns for a unique look that still remains scannable.

Add Your Logo (Optional)

Upload your company logo to place in the center of the QR code. Our tool automatically adjusts the error correction level to ensure the code remains scannable even with the logo overlay. You can control the logo size to find the perfect balance.

Generate and Download

Click the generate button to create your QR code instantly. Preview it to make sure it looks right, then download in PNG or SVG format. PNG is best for digital use, while SVG provides scalable vector graphics for print materials.

Frequently Asked Questions

How many characters can a QR code store?
The capacity of a QR code depends on the data type and QR code version. Maximum capacities are approximately:
  • Numeric only: 7,089 characters
  • Alphanumeric: 4,296 characters
  • Binary/bytes: 2,953 characters
  • Kanji/Kana: 1,817 characters
For most practical uses (URLs, contact info), standard QR codes provide more than enough capacity.
Do colored QR codes work as well as black and white?
Yes, colored QR codes work perfectly as long as there's sufficient contrast between the foreground and background. Dark colors on light backgrounds work best. Avoid using similar colors or low contrast combinations that might make scanning difficult. Our generator automatically checks for adequate contrast to ensure scannability.
Can QR codes with logos still be scanned?
Absolutely! QR codes are designed with error correction capabilities. When you add a logo, the QR code uses its error correction data to compensate for the covered area. Our generator automatically adjusts the error correction level to ensure your branded QR codes remain highly scannable while maintaining your brand identity.
What's the difference between static and dynamic QR codes?
Static QR codes contain fixed information that cannot be changed once generated. They're perfect for permanent information like WiFi passwords or fixed URLs. Dynamic QR codes use a short URL that redirects to your content, allowing you to change the destination without regenerating the code. Our generator creates static QR codes, which are ideal for most use cases and don't require ongoing subscriptions.

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