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<!DOCTYPE html>
<html lang="en" class="dark">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Quantum QR Studio - QR Code Generator & Scanner</title>
<!-- Tailwind CSS CDN -->
<script src="https://cdn.tailwindcss.com"></script>
<!-- Font Awesome CDN -->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css">
<!-- Google Fonts (Poppins & Fira Code) -->
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700&family=Fira+Code&display=swap" rel="stylesheet">
<!-- QR Code Styling Library -->
<script src="https://unpkg.com/qr-code-styling@1.6.0/lib/qr-code-styling.js"></script>
<!-- ZXing JS Scanner Library -->
<script src="https://unpkg.com/@zxing/library@latest/umd/index.min.js"></script>
<style>
body {
font-family: 'Poppins', sans-serif;
background-color: #0f172a; /* bg-slate-900 */
}
.mono { font-family: 'Fira Code', monospace; }
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #1e293b; }
::-webkit-scrollbar-thumb { background: #475569; border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: #64748b; }
.tab-btn.active {
background-color: #0ea5e9; /* bg-sky-500 */
color: white;
}
.fade-in { animation: fadeIn 0.5s ease-in-out; }
@keyframes fadeIn {
from { opacity: 0; transform: translateY(10px); }
to { opacity: 1; transform: translateY(0); }
}
</style>
</head>
<body class="text-slate-200">
<div class="container mx-auto p-4 md:p-8 max-w-7xl">
<header class="text-center mb-8">
<h1 class="text-4xl md:text-5xl font-bold text-white">Quantum <span class="text-sky-400">QR</span> Studio</h1>
<p class="text-slate-400 mt-2">The ultimate client-side toolkit for QR Codes.</p>
</header>
<!-- Tabs Navigation -->
<div class="mb-6 bg-slate-800 p-2 rounded-xl flex justify-center gap-2 max-w-sm mx-auto">
<button class="tab-btn w-full py-2 px-4 rounded-lg font-semibold transition active" data-tab="generator">
<i class="fas fa-qrcode mr-2"></i>Generator
</button>
<button class="tab-btn w-full py-2 px-4 rounded-lg font-semibold transition" data-tab="scanner">
<i class="fas fa-camera mr-2"></i>Scanner
</button>
</div>
<main>
<!-- Generator Tab -->
<div id="generator-tab" class="tab-content fade-in">
<div class="grid md:grid-cols-2 lg:grid-cols-3 gap-8">
<!-- Left Side: Controls -->
<div class="lg:col-span-2 bg-slate-800/70 p-6 rounded-2xl">
<!-- QR Type Selector -->
<div class="mb-4">
<label for="qr-type" class="block text-sm font-bold mb-2 text-sky-400">QR CODE TYPE</label>
<select id="qr-type" class="w-full p-3 bg-slate-700 rounded-lg border-2 border-slate-600 focus:border-sky-500 focus:outline-none">
<option value="url">URL</option>
<option value="text">Text</option>
<option value="wifi">Wi-Fi Network</option>
<option value="vcard">vCard (Contact)</option>
<option value="sms">SMS</option>
<option value="phone">Phone Number</option>
<option value="email">Email</option>
<option value="upi">UPI Payment</option>
</select>
</div>
<div id="form-container" class="space-y-4"></div>
<details class="mt-6 bg-slate-900/50 rounded-lg">
<summary class="p-3 cursor-pointer font-semibold text-white">Advanced Customization</summary>
<div class="p-4 border-t border-slate-700 grid sm:grid-cols-2 gap-4">
<!-- Manual Color Pickers -->
<input type="color" id="dot-color" value="#000000" title="Dot Color" class="w-full h-10 p-1 bg-slate-700 rounded-lg">
<input type="color" id="bg-color" value="#ffffff" title="Background Color" class="w-full h-10 p-1 bg-slate-700 rounded-lg">
<!-- Error Correction -->
<select id="error-correction" class="w-full p-2 bg-slate-700 rounded-lg border-2 border-slate-600">
<option value="L">Error Correction: Low</option>
<option value="M" selected>Error Correction: Medium</option>
<option value="Q">Error Correction: Quartile</option>
<option value="H">Error Correction: High</option>
</select>
<!-- Logo Upload -->
<div class="relative">
<input type="file" id="logo-upload" accept="image/png, image/jpeg" class="hidden">
<button onclick="document.getElementById('logo-upload').click()" class="w-full p-2 bg-slate-700 rounded-lg">Upload Logo</button>
</div>
<!-- ADDED: Randomize Colors Button -->
<button id="random-color-btn" class="sm:col-span-2 w-full bg-gradient-to-r from-purple-500 to-pink-500 text-white font-bold py-2 px-4 rounded-lg transition-transform hover:scale-105">
<i class="fas fa-palette mr-2"></i>Randomize Colors
</button>
</div>
</details>
</div>
<!-- Right Side: QR Preview -->
<div class="bg-slate-800/70 p-6 rounded-2xl flex flex-col items-center justify-center">
<div id="qr-code-container" class="bg-slate-700 p-4 rounded-lg mb-4">
<div id="qr-code"></div>
</div>
<p class="text-slate-400 text-sm mb-4">QR code updates in real-time</p>
<div class="w-full space-y-3">
<!-- CHANGED: Only JPG download is available now -->
<button id="download-jpg" class="w-full bg-sky-500 hover:bg-sky-600 text-white font-bold py-3 rounded-lg text-lg">
<i class="fas fa-download mr-2"></i>Download JPG
</button>
</div>
</div>
</div>
</div>
<!-- Scanner Tab -->
<div id="scanner-tab" class="tab-content hidden fade-in">
<div class="max-w-2xl mx-auto bg-slate-800/70 p-6 rounded-2xl text-center">
<video id="scanner-video" class="w-full rounded-lg mb-4 hidden aspect-video"></video>
<div id="permission-prompt" class="mb-4">
<p class="mb-4">Allow camera access to start scanning.</p>
<button id="start-scan-btn" class="bg-green-600 hover:bg-green-700 text-white font-bold py-2 px-4 rounded-lg"><i class="fas fa-video mr-2"></i>Use Camera</button>
</div>
<p class="text-slate-400 my-4">OR</p>
<input type="file" id="scan-file-upload" class="hidden" accept="image/*">
<button onclick="document.getElementById('scan-file-upload').click()" class="bg-slate-700 hover:bg-slate-600 text-white font-bold py-2 px-4 rounded-lg"><i class="fas fa-upload mr-2"></i>Upload Image</button>
<div id="scan-result" class="mt-6 text-left bg-slate-900 p-4 rounded-lg hidden break-words"></div>
</div>
</div>
</main>
</div>
<!-- JavaScript Logic -->
<script>
document.addEventListener('DOMContentLoaded', () => {
const qrCodeEl = document.getElementById('qr-code');
const qrTypeSelect = document.getElementById('qr-type');
const formContainer = document.getElementById('form-container');
const qrCode = new QRCodeStyling({
width: 250,
height: 250,
data: 'https://github.com/AmitK-1234',
image: '',
dotsOptions: { color: '#000000', type: 'rounded' },
backgroundOptions: { color: '#ffffff' },
imageOptions: { crossOrigin: 'anonymous', margin: 5 },
cornersSquareOptions: { type: 'extra-rounded' },
cornersDotOptions: { type: 'dot' },
qrOptions: { errorCorrectionLevel: 'M' }
});
qrCode.append(qrCodeEl);
const tabButtons = document.querySelectorAll('.tab-btn');
const tabContents = document.querySelectorAll('.tab-content');
let activeStream = null;
tabButtons.forEach(button => {
button.addEventListener('click', () => {
tabButtons.forEach(btn => btn.classList.remove('active'));
button.classList.add('active');
if (activeStream) stopScan();
const tabId = button.dataset.tab;
tabContents.forEach(content => {
content.id === `${tabId}-tab` ? content.classList.remove('hidden') : content.classList.add('hidden');
});
});
});
const forms = {
url: `<input type="url" id="data" class="qr-input w-full p-3 bg-slate-700 rounded-lg" placeholder="https://example.com">`,
text: `<textarea id="data" class="qr-input w-full p-3 bg-slate-700 rounded-lg" rows="4" placeholder="Enter any text"></textarea>`,
wifi: `<input type="text" id="wifi-ssid" class="qr-input w-full p-3 bg-slate-700 rounded-lg" placeholder="Network Name (SSID)"><input type="password" id="wifi-pass" class="qr-input w-full p-3 bg-slate-700 rounded-lg" placeholder="Password"><select id="wifi-enc" class="qr-input w-full p-3 bg-slate-700 rounded-lg"><option value="WPA">WPA/WPA2</option><option value="WEP">WEP</option><option value="nopass">No Password</option></select>`,
vcard: `<input type="text" id="vcard-name" class="qr-input w-full p-3 bg-slate-700 rounded-lg" placeholder="Full Name"><input type="tel" id="vcard-tel" class="qr-input w-full p-3 bg-slate-700 rounded-lg" placeholder="Phone Number"><input type="email" id="vcard-email" class="qr-input w-full p-3 bg-slate-700 rounded-lg" placeholder="Email Address">`,
sms: `<input type="tel" id="sms-tel" class="qr-input w-full p-3 bg-slate-700 rounded-lg" placeholder="Recipient Phone Number"><textarea id="sms-body" class="qr-input w-full p-3 bg-slate-700 rounded-lg" rows="3" placeholder="SMS Message"></textarea>`,
phone: `<input type="tel" id="data" class="qr-input w-full p-3 bg-slate-700 rounded-lg" placeholder="+1234567890">`,
email: `<input type="email" id="email-addr" class="qr-input w-full p-3 bg-slate-700 rounded-lg" placeholder="Recipient Email"><input type="text" id="email-subj" class="qr-input w-full p-3 bg-slate-700 rounded-lg" placeholder="Subject">`,
upi: `<input type="text" id="upi-id" class="qr-input w-full p-3 bg-slate-700 rounded-lg" placeholder="yourname@bank"><input type="text" id="upi-name" class="qr-input w-full p-3 bg-slate-700 rounded-lg" placeholder="Payee Name">`
};
const renderForm = (type) => { formContainer.innerHTML = forms[type]; updateQRCode(); };
const getQRData = () => {
let data = ' ';
try {
const type = qrTypeSelect.value;
switch(type) {
case 'url': case 'text': data = document.getElementById('data').value || ' '; break;
case 'phone': data = `tel:${document.getElementById('data').value || ''}`; break;
case 'wifi': data = `WIFI:T:${document.getElementById('wifi-enc').value};S:${document.getElementById('wifi-ssid').value};P:${document.getElementById('wifi-pass').value};;`; break;
case 'vcard': data = `BEGIN:VCARD\nVERSION:3.0\nN:${document.getElementById('vcard-name').value}\nTEL:${document.getElementById('vcard-tel').value}\nEMAIL:${document.getElementById('vcard-email').value}\nEND:VCARD`; break;
case 'sms': data = `SMSTO:${document.getElementById('sms-tel').value}:${document.getElementById('sms-body').value}`; break;
case 'email': data = `mailto:${document.getElementById('email-addr').value}?subject=${encodeURIComponent(document.getElementById('email-subj').value)}`; break;
case 'upi': data = `upi://pay?pa=${document.getElementById('upi-id').value}&pn=${encodeURIComponent(document.getElementById('upi-name').value)}&cu=INR`; break;
}
} catch (e) {}
return data;
};
const updateQRCode = () => qrCode.update({ data: getQRData() });
qrTypeSelect.addEventListener('change', () => renderForm(qrTypeSelect.value));
formContainer.addEventListener('input', updateQRCode);
const dotColorPicker = document.getElementById('dot-color');
const bgColorPicker = document.getElementById('bg-color');
dotColorPicker.addEventListener('input', (e) => qrCode.update({ dotsOptions: { color: e.target.value } }));
bgColorPicker.addEventListener('input', (e) => qrCode.update({ backgroundOptions: { color: e.target.value } }));
document.getElementById('error-correction').addEventListener('change', (e) => qrCode.update({ qrOptions: { errorCorrectionLevel: e.target.value } }));
document.getElementById('logo-upload').addEventListener('change', (e) => {
const file = e.target.files[0];
if (file) qrCode.update({ image: URL.createObjectURL(file) });
});
document.getElementById('download-jpg').addEventListener('click', () => qrCode.download({ name: 'quantum-qr', extension: 'jpeg' }));
// ADDED: Random Color Palettes and Logic
const colorPalettes = [
{ dots: '#4a044e', background: '#fbeaff', cornersSquare: '#210023', cornersDot: '#701a75' },
{ dots: '#006d77', background: '#edf6f9', cornersSquare: '#013a40', cornersDot: '#83c5be' },
{ dots: '#d90429', background: '#ffffff', cornersSquare: '#2b2d42', cornersDot: '#ef233c' },
{ dots: '#1d3557', background: '#f1faee', cornersSquare: '#1d3557', cornersDot: '#457b9d' },
{ dots: '#6a040f', background: '#fff3b0', cornersSquare: '#370617', cornersDot: '#9d0208' },
{ dots: '#3a5a40', background: '#ffffff', cornersSquare: '#1a2a1f', cornersDot: '#588157' },
];
document.getElementById('random-color-btn').addEventListener('click', () => {
const palette = colorPalettes[Math.floor(Math.random() * colorPalettes.length)];
dotColorPicker.value = palette.dots;
bgColorPicker.value = palette.background;
qrCode.update({
dotsOptions: { color: palette.dots },
backgroundOptions: { color: palette.background },
cornersSquareOptions: { color: palette.cornersSquare },
cornersDotOptions: { color: palette.cornersDot }
});
});
// --- QR Code Scanner Logic ---
const videoEl = document.getElementById('scanner-video');
const startScanBtn = document.getElementById('start-scan-btn');
const scanResultEl = document.getElementById('scan-result');
const permissionPromptEl = document.getElementById('permission-prompt');
const codeReader = new ZXing.BrowserMultiFormatReader();
const startScan = async () => {
try {
const stream = await navigator.mediaDevices.getUserMedia({ video: { facingMode: 'environment' } });
activeStream = stream;
videoEl.srcObject = stream;
videoEl.classList.remove('hidden');
permissionPromptEl.classList.add('hidden');
scanResultEl.classList.add('hidden');
codeReader.decodeFromStream(stream, videoEl, (result, err) => {
if (result) {
displayScanResult(result.getText());
stopScan();
}
});
} catch (err) {
alert('Could not access camera. Please check permissions.');
}
};
const stopScan = () => {
if (activeStream) {
activeStream.getTracks().forEach(track => track.stop());
activeStream = null;
}
codeReader.reset();
videoEl.classList.add('hidden');
permissionPromptEl.classList.remove('hidden');
};
document.getElementById('scan-file-upload').addEventListener('change', (e) => {
const file = e.target.files[0];
if (!file) return;
const reader = new FileReader();
reader.onload = (event) => {
const img = new Image();
img.onload = () => {
codeReader.decodeFromImageElement(img)
.then(result => displayScanResult(result.getText()))
.catch(err => {
alert('Could not decode QR code from the uploaded image. Please try a clearer, standard QR code.');
});
};
img.src = event.target.result;
};
reader.readAsDataURL(file);
});
const displayScanResult = (text) => {
let content = '';
if (text.startsWith('http')) {
content = `<strong>URL:</strong> <a href="${text}" target="_blank" class="text-sky-400 hover:underline">${text}</a>`;
} else if (text.startsWith('WIFI:')) {
content = `<strong>Wi-Fi Network:</strong><br><span class="mono">${text}</span>`;
} else if (text.startsWith('mailto:')) {
content = `<strong>Email:</strong> <a href="${text}" class="text-sky-400 hover:underline">${text.substring(7)}</a>`;
} else {
content = `<strong>Text:</strong><br><p class="mono">${text}</p>`;
}
scanResultEl.innerHTML = content;
scanResultEl.classList.remove('hidden');
};
startScanBtn.addEventListener('click', startScan);
renderForm('url');
});
</script>
</body>
</html> |