QR Code Generator

Convert text or a URL into a QR code and download it as an image.

Category: Dev Tools

When to use?

Use it to turn a website URL into a QR code for a business card or print, or to share text info as a QR code.

How to use

  • Enter text or a URL.
  • Choose the QR code size.
  • The QR code generates live.
  • Download it as a PNG image.

Input Explanation

Enter the URL or text (e.g. a website address, business-card info) to make into a QR code.

Calculation Basis

It encodes the input string into a QR 2D matrix with qrcode.js or a compatible library, draws black/white pixels on an HTML5 Canvas, and converts to a Data URL image.

Usage Examples

  • Generate URL QR codes - Convert a website URL into a QR code for print materials.
  • Share text - Make long text into a QR code for quick sharing.
  • Quick pre-deploy check - Check inputs and output to reduce errors before dev/ops work.

Examples

  • "https://google.com" → a QR code that opens that URL
  • Wi-Fi or business-card text → a QR code that opens on scan

Cautions

  • Generated output is for reference; test carefully before production use.
  • Specific web-standard specs or framework-only syntax may cause compatibility issues.

Guides

Generating a QR code

It converts text, URLs, contacts, or Wi-Fi info into a QR code. Longer input increases density, which can make scanning harder.

Error correction level

Higher error-correction levels (L·M·Q·H) survive damage but make the code denser. For print, M or Q is recommended.

FAQ

Can I adjust the QR code size?

Yes, choose the pixel size of the generated QR code.

Can I save the QR image?

You can download it as a PNG image.

What can a QR code hold?

Any string — a URL, plain text, contact info, etc.

Is there a character limit?

More data makes a denser pattern. URLs and short text are recognized without issue.

Related Tools

  • JSON Formatter - Beautify or minify JSON strings instantly and check for validity errors.
  • UUID Generator - Generate up to 20 cryptographically secure UUID v4 values at once.
  • Password Generator - Generate secure random passwords in the browser by choosing length, character set, and count.
  • JWT Decoder - Decode a JWT header and payload to view the JSON and key claims.
  • Regex Tester - Enter a regex pattern to see matches in text in real time.
  • Wi-Fi QR Code - Make a QR code from Wi-Fi network info so guests can connect easily.