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About QR Code Generator

Generate QR codes from any text, URL, or data string directly in your browser. Customize the size, error correction level, and colors to match your branding. The generated codes can be downloaded as PNG or SVG for use in print materials, websites, or mobile applications.

Step by Step

  1. 1Enter the text, URL, or data you want to encode.
  2. 2Adjust size, colors, and error correction level as needed.
  3. 3Preview the generated QR code.
  4. 4Download as PNG for digital use or SVG for print.
  5. 5Test the code with your phone camera before distributing.

Feature Highlights

  • Supports URLs, plain text, email addresses, WiFi credentials, and more
  • Four error correction levels for different durability needs
  • Customizable foreground and background colors
  • Adjustable module size and quiet zone
  • PNG and SVG export formats
  • Real-time preview as you type
  • Runs entirely in the browser — your data stays private

Tips & Best Practices

  • Always test your QR code with multiple devices before printing.
  • Keep URLs short — less data means a simpler, more scannable code.
  • Leave a quiet zone (white border) around the code for reliable scanning.

Understanding the Concepts

QR codes store data in a two-dimensional grid of black and white modules. They support four error correction levels (L, M, Q, H) that add redundancy — at the highest level, up to 30% of the code can be damaged and still scan correctly. This makes them practical for printed materials that might get scratched or partially obscured.

Popular Scenarios

  • Marketing materials

    Add scannable links to flyers, business cards, and posters that direct people to your website or landing page.

  • Product packaging

    Link to manuals, warranty registration, or product pages by printing a QR code on the box.

  • Event check-in

    Generate unique QR codes for tickets or badges that can be scanned at entry.

  • WiFi sharing

    Create a QR code that lets guests join your network by scanning instead of typing a password.

  • Contact sharing

    Encode vCard data so others can add your contact info by scanning.

Frequently Asked Questions

How much data can a QR code hold?

Up to about 3,000 alphanumeric characters or 4,296 numeric digits at the lowest error correction level. Higher correction levels reduce capacity.

Which error correction level should I use?

Level M (15% recovery) is a good default. Use Level H (30%) if the code will be printed on surfaces that might get worn or partially covered.

Can I change the colors?

Yes. Just ensure there is enough contrast between the foreground and background for scanners to read the code reliably.

Privacy First

All processing happens directly in your browser. Your files never leave your device and are never uploaded to any server.