Free Developer Tool — 100% Client-Side

QR Code Generator

Generate QR codes instantly from any text or URL. Download as SVG. No tracking, no server uploads, pure client-side generation.

Text or URL

Size

Enter text or URL to generate a QR code.

What Is a QR Code?

A QR Code (Quick Response Code) is a two-dimensional barcode that stores data as a matrix of black and white modules. Unlike traditional barcodes, QR codes can hold thousands of alphanumeric characters and are readable from any angle. Our free QR code generator creates vector SVG QR codes directly in your browser — no data is sent to any server.

Common QR Code Use Cases

Marketing & Advertising

Print ads linking to landing pages
Product packaging with instructions
Business cards with contact info
Restaurant menus and reviews

Technical & Development

App download links (App Store / Play Store)
Wi-Fi network credentials
API documentation URLs
Event check-in and ticketing

Why Use a QR Code Generator?

No Account Required — Generate QR codes instantly, no sign-up or login needed.
100% Private — All QR code generation happens in your browser. Nothing is uploaded.
SVG Download — Get a crisp vector SVG that scales to any size without quality loss.
Unlimited Use — Generate as many QR codes as you want, completely free.
No Expiry — Generated QR codes do not expire or require a subscription.

How QR Codes Work

QR codes use Reed-Solomon error correction to store data redundantly, allowing them to be read even when partially damaged or obscured. The three large squares in the corners act as alignment markers, while the smaller timing patterns help the scanner determine the grid size. This tool uses the qrcode-generator library with M-level error correction (15% data recovery), balancing capacity with reliability.

How to Generate a QR Code

Type or paste any text or URL into the input field, optionally select the output size, then click Generate. Your QR code will appear instantly as an SVG graphic. Use Download SVG to save it as a vector file for print or digital use. The Load Example button fills in a sample URL so you can test the tool right away.

How to Do This in Code

// Lightweight QR generation using canvas
function generateQR(text, size) {
  const canvas = document.createElement('canvas');
  canvas.width = size; canvas.height = size;
  // Use a minimal QR library like qrcode-generator
  const qr = qrcode(0, 'M');
  qr.addData(text); qr.make();
  const modCount = qr.getModuleCount();
  const ctx = canvas.getContext('2d');
  for (let r = 0; r < modCount; r++)
    for (let c = 0; c < modCount; c++)
      ctx.fillStyle = qr.isDark(r, c) ? '#000' : '#fff';
  return canvas.toDataURL('image/png');
}

import qrcode
img = qrcode.make("https://webutil.tech")
img.save("qrcode.png")

# With customization
qr = qrcode.QRCode(box_size=10, border=4)
qr.add_data("https://webutil.tech")
qr.make(fit=True)
img = qr.make_image(fill_color="black", back_color="white")

import "github.com/skip2/go-qrcode"

qr, _ := qrcode.New("https://webutil.tech", qrcode.Medium)
qr.WriteFile(256, "qrcode.png")

// PNG byte output
png, _ := qr.PNG(256)

# Install: apt install qrencode
qrencode -o qrcode.png "https://webutil.tech"
qrencode -t SVG -o qrcode.svg "https://webutil.tech"

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QR Code Generator FAQ

How does this QR code generator work?

It uses the lightweight qrcode-generator library running entirely in your browser. No data is sent to any server. You can generate QR codes from any text or URL and download them as SVG files.

Can I use the QR codes commercially?

Yes. QR codes generated by this tool are free to use for any purpose, including commercial use. There are no watermarks, tracking, or limitations.

What data can I encode in a QR code?

Any text: URLs, email addresses, phone numbers, Wi-Fi credentials (WIFI:T:WPA;S:name;P:password;;), contact info (vCard), SMS messages (SMSTO:number:body), or plain text. The SVG output is scalable and works in print and web.