Qr-Code-Reader/index.html at main · mrhackoi/Qr-Code-Reader · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>QR Code Scanner - Extract Links & Data</title>
    <script src="https://cdn.jsdelivr.net/npm/@tailwindcss/browser@4"></script>
    <script src="https://cdn.jsdelivr.net/npm/jsqr@1.4.0/dist/jsQR.min.js"></script>
    <style>
        .gradient-bg {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        }
        .drop-zone {
            border: 3px dashed #a78bfa;
            transition: all 0.3s ease;
        }
        .drop-zone:hover, .drop-zone.dragover {
            border-color: #7c3aed;
            background-color: rgba(167, 139, 250, 0.1);
            transform: scale(1.02);
        }
        .pulse-animation {
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.5; }
        }
    </style>
</head>
<body class="min-h-screen gradient-bg">
    <div class="container mx-auto px-4 py-12">
        <!-- Header -->
        <div class="text-center mb-12">
            <h1 class="text-4xl md:text-5xl font-bold text-white mb-4">
                📱 QR Code Scanner
            </h1>
            <p class="text-purple-200 text-lg">
                Upload your QR code image to extract links and data instantly
            </p>
        </div>

        <!-- Main Card -->
        <div class="max-w-2xl mx-auto bg-white rounded-3xl shadow-2xl overflow-hidden">
            <!-- Upload Section -->
            <div class="p-8">
                <div
                    id="dropZone"
                    class="drop-zone rounded-2xl p-12 text-center cursor-pointer bg-purple-50"
                    onclick="document.getElementById('fileInput').click()"
                >
                    <div id="uploadContent">
                        <div class="text-6xl mb-4">📤</div>
                        <h3 class="text-xl font-semibold text-gray-700 mb-2">
                            Drop your QR code here
                        </h3>
                        <p class="text-gray-500 mb-4">
                            or click to browse files
                        </p>
                        <p class="text-sm text-gray-400">
                            Supports PNG, JPG, JPEG, GIF, WebP
                        </p>
                    </div>
                    <div id="loadingContent" class="hidden">
                        <div class="text-6xl mb-4 pulse-animation">🔍</div>
                        <p class="text-gray-600">Scanning QR code...</p>
                    </div>
                </div>
                <input
                    type="file"
                    id="fileInput"
                    accept="image/*"
                    class="hidden"
                    onchange="handleFileSelect(event)"
                >
            </div>

            <!-- Preview Section -->
            <div id="previewSection" class="hidden px-8 pb-4">
                <div class="flex items-center justify-center">
                    <div class="relative">
                        <img
                            id="previewImage"
                            class="max-h-48 rounded-xl shadow-lg border-4 border-purple-200"
                            alt="QR Code Preview"
                        >
                        <button
                            onclick="clearAll()"
                            class="absolute -top-3 -right-3 bg-red-500 text-white rounded-full w-8 h-8 flex items-center justify-center hover:bg-red-600 transition-colors shadow-lg"
                        >
                            ✕
                        </button>
                    </div>
                </div>
            </div>

            <!-- Results Section -->
            <div id="resultsSection" class="hidden">
                <div class="bg-gradient-to-r from-green-50 to-emerald-50 p-8 border-t border-green-100">
                    <div class="flex items-center mb-4">
                        <span class="text-3xl mr-3">✅</span>
                        <h3 class="text-xl font-bold text-green-800">QR Code Decoded!</h3>
                    </div>

                    <!-- Data Type Badge -->
                    <div class="mb-4">
                        <span id="dataTypeBadge" class="inline-block px-4 py-1 rounded-full text-sm font-semibold bg-purple-100 text-purple-700">
                            Text
                        </span>
                    </div>

                    <!-- Extracted Data -->
                    <div class="bg-white rounded-xl p-4 shadow-inner mb-4">
                        <label class="block text-sm font-medium text-gray-500 mb-2">Extracted Data:</label>
                        <div id="extractedData" class="text-gray-800 break-all font-mono text-sm bg-gray-50 p-3 rounded-lg">
                        </div>
                    </div>

                    <!-- Link Section (if URL detected) -->
                    <div id="linkSection" class="hidden bg-white rounded-xl p-4 shadow-inner mb-4">
                        <label class="block text-sm font-medium text-gray-500 mb-2">🔗 Detected Link:</label>
                        <a
                            id="extractedLink"
                            href="#"
                            target="_blank"
                            class="text-purple-600 hover:text-purple-800 underline break-all font-medium"
                        ></a>
                    </div>

                    <!-- Action Buttons -->
                    <div class="flex flex-wrap gap-3 mt-6">
                        <button
                            onclick="copyToClipboard()"
                            class="flex-1 min-w-[140px] bg-purple-600 hover:bg-purple-700 text-white font-semibold py-3 px-6 rounded-xl transition-colors flex items-center justify-center gap-2"
                        >
                            <span>📋</span> Copy Data
                        </button>
                        <button
                            id="openLinkBtn"
                            onclick="openLink()"
                            class="hidden flex-1 min-w-[140px] bg-green-600 hover:bg-green-700 text-white font-semibold py-3 px-6 rounded-xl transition-colors flex items-center justify-center gap-2"
                        >
                            <span>🌐</span> Open Link
                        </button>
                        <button
                            onclick="clearAll()"
                            class="flex-1 min-w-[140px] bg-gray-200 hover:bg-gray-300 text-gray-700 font-semibold py-3 px-6 rounded-xl transition-colors flex items-center justify-center gap-2"
                        >
                            <span>🔄</span> Scan Another
                        </button>
                    </div>
                </div>
            </div>

            <!-- Error Section -->
            <div id="errorSection" class="hidden">
                <div class="bg-gradient-to-r from-red-50 to-orange-50 p-8 border-t border-red-100">
                    <div class="flex items-center mb-4">
                        <span class="text-3xl mr-3">❌</span>
                        <h3 class="text-xl font-bold text-red-800">Couldn't Read QR Code</h3>
                    </div>
                    <p id="errorMessage" class="text-red-600 mb-4">
                        Please make sure the image contains a valid QR code and try again.
                    </p>
                    <button
                        onclick="clearAll()"
                        class="bg-red-500 hover:bg-red-600 text-white font-semibold py-3 px-6 rounded-xl transition-colors"
                    >
                        Try Again
                    </button>
                </div>
            </div>
        </div>

        <!-- Features -->
        <div class="max-w-4xl mx-auto mt-12 grid md:grid-cols-3 gap-6">
            <div class="bg-white/20 backdrop-blur-sm rounded-2xl p-6 text-center">
                <div class="text-4xl mb-3">⚡</div>
                <h3 class="text-white font-semibold mb-2">Instant Scanning</h3>
                <p class="text-purple-200 text-sm">Get results in milliseconds</p>
            </div>
            <div class="bg-white/20 backdrop-blur-sm rounded-2xl p-6 text-center">
                <div class="text-4xl mb-3">🔒</div>
                <h3 class="text-white font-semibold mb-2">100% Private</h3>
                <p class="text-purple-200 text-sm">All processing happens locally</p>
            </div>
            <div class="bg-white/20 backdrop-blur-sm rounded-2xl p-6 text-center">
                <div class="text-4xl mb-3">🆓</div>
                <h3 class="text-white font-semibold mb-2">Completely Free</h3>
                <p class="text-purple-200 text-sm">No limits, no sign-up required</p>
            </div>
        </div>

        <!-- Footer -->
        <div class="text-center mt-12 text-purple-200 text-sm">
            <p>Made with ❤️ | Your QR codes are processed locally and never uploaded to any server</p>
        </div>
    </div>

    <!-- Toast Notification -->
    <div id="toast" class="fixed bottom-6 right-6 bg-gray-800 text-white px-6 py-3 rounded-xl shadow-2xl transform translate-y-20 opacity-0 transition-all duration-300">
        <span id="toastMessage">Copied to clipboard!</span>
    </div>

    <canvas id="canvas" class="hidden"></canvas>

    <script>
        let extractedDataValue = '';
        let isLink = false;

        // Drag and drop handlers
        const dropZone = document.getElementById('dropZone');

        ['dragenter', 'dragover', 'dragleave', 'drop'].forEach(eventName => {
            dropZone.addEventListener(eventName, preventDefaults, false);
        });

        function preventDefaults(e) {
            e.preventDefault();
            e.stopPropagation();
        }

        ['dragenter', 'dragover'].forEach(eventName => {
            dropZone.addEventListener(eventName, () => {
                dropZone.classList.add('dragover');
            });
        });

        ['dragleave', 'drop'].forEach(eventName => {
            dropZone.addEventListener(eventName, () => {
                dropZone.classList.remove('dragover');
            });
        });

        dropZone.addEventListener('drop', (e) => {
            const files = e.dataTransfer.files;
            if (files.length > 0) {
                handleFile(files[0]);
            }
        });

        function handleFileSelect(event) {
            const file = event.target.files[0];
            if (file) {
                handleFile(file);
            }
        }

        function handleFile(file) {
            if (!file.type.startsWith('image/')) {
                showError('Please upload an image file.');
                return;
            }

            showLoading(true);
            hideResults();

            const reader = new FileReader();
            reader.onload = function(e) {
                const img = new Image();
                img.onload = function() {
                    // Show preview
                    document.getElementById('previewImage').src = e.target.result;
                    document.getElementById('previewSection').classList.remove('hidden');

                    // Decode QR code
                    decodeQR(img);
                };
                img.onerror = function() {
                    showLoading(false);
                    showError('Failed to load the image. Please try another file.');
                };
                img.src = e.target.result;
            };
            reader.readAsDataURL(file);
        }

        function decodeQR(img) {
            const canvas = document.getElementById('canvas');
            const ctx = canvas.getContext('2d');

            canvas.width = img.width;
            canvas.height = img.height;
            ctx.drawImage(img, 0, 0);

            const imageData = ctx.getImageData(0, 0, canvas.width, canvas.height);
            const code = jsQR(imageData.data, imageData.width, imageData.height, {
                inversionAttempts: "dontInvert",
            });

            showLoading(false);

            if (code) {
                displayResults(code.data);
            } else {
                // Try with inverted colors
                const invertedCode = jsQR(imageData.data, imageData.width, imageData.height, {
                    inversionAttempts: "attemptBoth",
                });

                if (invertedCode) {
                    displayResults(invertedCode.data);
                } else {
                    showError('No QR code found in the image. Please make sure the QR code is clear and visible.');
                }
            }
        }

        function displayResults(data) {
            extractedDataValue = data;

            // Check if it's a URL
            const urlPattern = /^(https?:\/\/|www\.)[^\s]+/i;
            isLink = urlPattern.test(data);

            // Determine data type
            let dataType = 'Text';
            if (isLink) {
                dataType = 'URL / Link';
            } else if (data.startsWith('mailto:')) {
                dataType = 'Email';
            } else if (data.startsWith('tel:')) {
                dataType = 'Phone Number';
            } else if (data.startsWith('WIFI:')) {
                dataType = 'WiFi Network';
            } else if (data.startsWith('BEGIN:VCARD')) {
                dataType = 'Contact Card';
            } else if (data.startsWith('geo:')) {
                dataType = 'Location';
            }

            document.getElementById('dataTypeBadge').textContent = dataType;
            document.getElementById('extractedData').textContent = data;

            if (isLink) {
                const link = data.startsWith('http') ? data : 'https://' + data;
                document.getElementById('extractedLink').href = link;
                document.getElementById('extractedLink').textContent = data;
                document.getElementById('linkSection').classList.remove('hidden');
                document.getElementById('openLinkBtn').classList.remove('hidden');
                document.getElementById('openLinkBtn').classList.add('flex');
            } else {
                document.getElementById('linkSection').classList.add('hidden');
                document.getElementById('openLinkBtn').classList.add('hidden');
            }

            document.getElementById('resultsSection').classList.remove('hidden');
            document.getElementById('errorSection').classList.add('hidden');
        }

        function showError(message) {
            document.getElementById('errorMessage').textContent = message;
            document.getElementById('errorSection').classList.remove('hidden');
            document.getElementById('resultsSection').classList.add('hidden');
        }

        function hideResults() {
            document.getElementById('resultsSection').classList.add('hidden');
            document.getElementById('errorSection').classList.add('hidden');
        }

        function showLoading(show) {
            document.getElementById('uploadContent').classList.toggle('hidden', show);
            document.getElementById('loadingContent').classList.toggle('hidden', !show);
        }

        function clearAll() {
            document.getElementById('fileInput').value = '';
            document.getElementById('previewSection').classList.add('hidden');
            hideResults();
            showLoading(false);
            extractedDataValue = '';
            isLink = false;
        }

        function copyToClipboard() {
            navigator.clipboard.writeText(extractedDataValue).then(() => {
                showToast('Copied to clipboard! 📋');
            }).catch(() => {
                // Fallback
                const textarea = document.createElement('textarea');
                textarea.value = extractedDataValue;
                document.body.appendChild(textarea);
                textarea.select();
                document.execCommand('copy');
                document.body.removeChild(textarea);
                showToast('Copied to clipboard! 📋');
            });
        }

        function openLink() {
            if (isLink) {
                const link = extractedDataValue.startsWith('http') ? extractedDataValue : 'https://' + extractedDataValue;
                window.open(link, '_blank');
            }
        }

        function showToast(message) {
            const toast = document.getElementById('toast');
            document.getElementById('toastMessage').textContent = message;
            toast.classList.remove('translate-y-20', 'opacity-0');
            toast.classList.add('translate-y-0', 'opacity-100');

            setTimeout(() => {
                toast.classList.add('translate-y-20', 'opacity-0');
                toast.classList.remove('translate-y-0', 'opacity-100');
            }, 2500);
        }
    </script>
</body>
</html>