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/ QR Code Generator

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QR Code Size (128-1024)

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QR Code Generator

Generate QR codes from text or URLs

■ 01

What is a QR Code?

A QR (Quick Response) code is a two-dimensional barcode that can store various types of data including URLs, text, contact information, and more. QR codes can be scanned by smartphones and other devices with cameras.

■ 02

How does it work?

Using This Tool Enter any text, URL, or data you want to encode into a QR code. Adjust the size if needed (default is 256px), then click Generate. You can download the generated QR code as a PNG image. Size Guidelines T…

■ 03

Sample Cases

Covers URL, Contact Info, and WiFi Network so you can compare common inputs and outputs quickly.

/ Code

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/ Integration

Source code from the selected tool, shown here alongside the live version on the right.

/ Source Code

TypeScript

typescript

// npm install qrcode
// npm install @types/qrcode --save-dev

import QRCode from 'qrcode';
import * as fs from 'fs';

interface QRCodeOptions {
  width?: number;
  margin?: number;
  errorCorrectionLevel?: 'L' | 'M' | 'Q' | 'H';