AI Wantu

QR Code Generator

Generate QR codes with custom styles and colors

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Enter content then click Generate

Introduction

QR code generator converts any text, URL, contact information into QR code images. Supports customizable size, foreground and background colors. Generated QR codes can be used for business cards, posters, product packaging and more. Generated QR codes are compatible with all mainstream scanning apps including WeChat, Alipay, and browsers, ensuring your information can be accurately recognized and shared.

How to Use

  1. 1Enter content to convert in the text box (URL, text, phone number, etc.)
  2. 2Select QR code size (128px to 1024px)
  3. 3Optional: Click color pickers to customize foreground and background colors
  4. 4Click generate button, preview and download the QR code

FAQ

How much information can a QR code contain?

Theoretically thousands of characters, but more content makes the QR code more complex and harder to scan. Recommend keeping URLs under 200 characters and plain text under 500 characters.

Will the generated QR code expire?

No. QR codes are just visual encoding of information and don't depend on any server. However, if the URL in the QR code becomes invalid, the content won't be accessible.

Why can't some color combinations be scanned?

QR codes need sufficient contrast to be recognized. Recommend at least 50% brightness difference between foreground and background colors. Avoid using similar colors.