🧰Online Tools

QR Code Generator

Generate QR codes from text or URLs with PNG download

Enter content to generate QR code

About This Tool

A QR Code (Quick Response Code) is a two-dimensional barcode that can store text, URLs, contact information, and more. Smartphones can quickly read QR code information using their camera or a dedicated scanning app. This tool helps you quickly generate QR code images with customizable size, and you can download them as PNG format for printing or online sharing. All processing is done locally in your browser - your input is never uploaded to any server, fully protecting your privacy.

How to Use

  1. Enter the content you want to convert to a QR code (text, URL, phone number, etc.) in the input field
  2. Use the slider to adjust the QR code image size (128-512 pixels)
  3. The preview area will display the generated QR code in real-time
  4. Once confirmed, click 'Download PNG' to save the image

Common Use Cases

  • Website promotion: Generate QR codes for URLs to print on business cards, posters, and flyers
  • Payment links: Generate QR codes for WeChat/Alipay payment links
  • WiFi sharing: Generate WiFi connection QR codes for guest access
  • Contact info: Generate QR codes with contact details for easy saving
  • Product packaging: Print QR codes on products linking to instruction pages
  • Event check-in: Generate check-in link QR codes for meetings or events

FAQ

Q1: Can generated QR codes be used permanently?

Yes, generated QR code images can be used permanently. QR codes are just an encoding format - as long as the content doesn't change, the QR code won't expire. However, if the QR code points to a URL that becomes invalid, scanning it won't work.

Q2: Can I generate colored QR codes?

Currently this tool generates standard black and white QR codes, which have the best compatibility and can be recognized by all scanning devices. For colored QR codes, we recommend using professional design software to customize the generated base image.

Q3: How much content can a QR code store?

Standard QR codes can store up to about 3000 characters. However, more content means more complex QR codes, which may slow down scanning. We recommend keeping content under 500 characters and using URL shorteners for long links.

Q4: Why can't my generated QR code be scanned?

Possible reasons: 1) Input contains special characters; 2) Image size too small causing detail loss; 3) Poor print quality. We recommend choosing a larger size (256 pixels or above) and ensuring clear printing.

Q5: Will my data be saved?

No. This tool runs entirely in your browser locally. All content you input is never uploaded to any server. All data is cleared when you close the page.