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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>Free YouTube Caption Extractor</title>
<script src="https://cdn.tailwindcss.com"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
<style>
.video-container {
position: relative;
padding-bottom: 56.25%;
height: 0;
overflow: hidden;
}
.video-container iframe {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
}
.caption-text {
max-height: 300px;
overflow-y: auto;
}
.caption-line:hover {
background-color: #f0f0f0;
cursor: pointer;
}
.caption-line.selected {
background-color: #e2e8f0;
font-weight: 500;
}
.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="bg-gray-50 min-h-screen">
<div class="container mx-auto px-4 py-8 max-w-4xl">
<!-- Header -->
<header class="text-center mb-8">
<h1 class="text-3xl md:text-4xl font-bold text-indigo-700 mb-2">YouTube Caption Extractor</h1>
<p class="text-gray-600">Get captions/subtitles from any YouTube video for free</p>
</header>
<!-- Main Content -->
<main>
<!-- URL Input Section -->
<div class="bg-white rounded-lg shadow-md p-6 mb-8">
<div class="flex flex-col md:flex-row gap-4">
<input
type="text"
id="youtube-url"
placeholder="Paste YouTube video URL here (e.g. https://www.youtube.com/watch?v=...)"
class="flex-grow px-4 py-3 border border-gray-300 rounded-lg focus:outline-none focus:ring-2 focus:ring-indigo-500"
>
<button
id="extract-btn"
class="bg-indigo-600 hover:bg-indigo-700 text-white font-medium px-6 py-3 rounded-lg transition-colors flex items-center justify-center gap-2"
>
<i class="fas fa-play"></i> Extract Captions
</button>
</div>
<div id="error-message" class="text-red-500 mt-2 text-sm hidden"></div>
</div>
<!-- Video Player Section -->
<div id="video-section" class="hidden fade-in">
<div class="bg-white rounded-lg shadow-md overflow-hidden mb-6">
<div class="video-container">
<iframe id="video-player" frameborder="0" allowfullscreen></iframe>
</div>
</div>
<!-- Captions Section -->
<div class="bg-white rounded-lg shadow-md p-6">
<div class="flex flex-col md:flex-row md:justify-between md:items-center mb-4 gap-4">
<h2 class="text-xl font-semibold text-gray-800">Video Captions</h2>
<div class="flex flex-col sm:flex-row gap-2">
<select id="language-select" class="px-3 py-2 border border-gray-300 rounded-lg text-sm">
<option value="es">Spanish</option>
<option value="fr">French</option>
<option value="de">German</option>
<option value="it">Italian</option>
<option value="pt">Portuguese</option>
<option value="ja">Japanese</option>
<option value="ko">Korean</option>
<option value="zh">Chinese</option>
</select>
<select id="format-select" class="px-3 py-2 border border-gray-300 rounded-lg text-sm">
<option value="plain">Plain Text</option>
<option value="srt">SRT Format</option>
<option value="tab">Tab Separated</option>
</select>
<button
id="copy-all-btn"
class="text-indigo-600 hover:text-indigo-800 flex items-center gap-1 text-sm whitespace-nowrap"
>
<i class="fas fa-copy"></i> Copy All
</button>
</div>
</div>
<div class="bg-gray-100 rounded-lg p-4 caption-text" id="captions-container">
<p class="text-gray-500 text-center py-8">Captions will appear here after extraction</p>
</div>
<div class="mt-4 flex justify-between items-center text-sm text-gray-500">
<div id="selected-count">0 captions selected</div>
<button
id="copy-selected-btn"
class="text-indigo-600 hover:text-indigo-800 flex items-center gap-1 disabled:opacity-50"
disabled
>
<i class="fas fa-copy"></i> Copy Selected
</button>
</div>
</div>
</div>
</main>
<!-- How It Works Section -->
<section class="mt-12 bg-white rounded-lg shadow-md p-6">
<h2 class="text-xl font-semibold text-gray-800 mb-4">How It Works</h2>
<div class="grid md:grid-cols-3 gap-6">
<div class="flex flex-col items-center text-center">
<div class="bg-indigo-100 w-12 h-12 rounded-full flex items-center justify-center mb-3">
<i class="fas fa-link text-indigo-600 text-xl"></i>
</div>
<h3 class="font-medium mb-1">1. Paste URL</h3>
<p class="text-gray-600 text-sm">Enter any YouTube video URL in the box above</p>
</div>
<div class="flex flex-col items-center text-center">
<div class="bg-indigo-100 w-12 h-12 rounded-full flex items-center justify-center mb-3">
<i class="fas fa-play-circle text-indigo-600 text-xl"></i>
</div>
<h3 class="font-medium mb-1">2. Extract Captions</h3>
<p class="text-gray-600 text-sm">Click the button to process the video</p>
</div>
<div class="flex flex-col items-center text-center">
<div class="bg-indigo-100 w-12 h-12 rounded-full flex items-center justify-center mb-3">
<i class="fas fa-copy text-indigo-600 text-xl"></i>
</div>
<h3 class="font-medium mb-1">3. Copy & Study</h3>
<p class="text-gray-600 text-sm">Select and copy captions for your study needs</p>
</div>
</div>
</section>
<!-- Footer -->
<footer class="mt-12 text-center text-gray-500 text-sm">
<p>Free YouTube Caption Extractor - No registration required</p>
<p class="mt-1">© 2023 All Rights Reserved</p>
</footer>
</div>
<!-- Toast Notification -->
<div id="toast" class="fixed bottom-4 right-4 bg-gray-800 text-white px-4 py-2 rounded-lg shadow-lg hidden">
<div class="flex items-center gap-2">
<i class="fas fa-check-circle text-green-400"></i>
<span id="toast-message">Copied to clipboard!</span>
</div>
</div>
<script>
document.addEventListener('DOMContentLoaded', function() {
const youtubeUrlInput = document.getElementById('youtube-url');
const extractBtn = document.getElementById('extract-btn');
const videoSection = document.getElementById('video-section');
const videoPlayer = document.getElementById('video-player');
const captionsContainer = document.getElementById('captions-container');
const errorMessage = document.getElementById('error-message');
const copyAllBtn = document.getElementById('copy-all-btn');
const copySelectedBtn = document.getElementById('copy-selected-btn');
const selectedCount = document.getElementById('selected-count');
const toast = document.getElementById('toast');
const toastMessage = document.getElementById('toast-message');
let captions = [];
let selectedCaptions = new Set();
let currentLanguage = 'es';
let currentFormat = 'plain';
// Extract video ID from URL
function getVideoId(url) {
const regExp = /^.*(youtu.be\/|v\/|u\/\w\/|embed\/|watch\?v=|&v=)([^#&?]*).*/;
const match = url.match(regExp);
return (match && match[2].length === 11) ? match[2] : null;
}
// Validate YouTube URL
function isValidYouTubeUrl(url) {
return url.includes('youtube.com') || url.includes('youtu.be');
}
// Show error message
function showError(message) {
errorMessage.textContent = message;
errorMessage.classList.remove('hidden');
}
// Hide error message
function hideError() {
errorMessage.classList.add('hidden');
}
// Show toast notification
function showToast(message) {
toastMessage.textContent = message;
toast.classList.remove('hidden');
setTimeout(() => {
toast.classList.add('hidden');
}, 3000);
}
// Extract captions (mock function - in a real app, you'd call a backend service)
function extractCaptions(videoId) {
// This is a mock implementation
// In a real app, you would need to:
// 1. Call a backend service that uses the YouTube API to get captions
// 2. Or use a proxy service to fetch captions
return new Promise((resolve) => {
// Simulate API delay
setTimeout(() => {
// Mock captions data
const mockCaptions = [
{
start: 0,
duration: 5,
original: "Hello and welcome to this tutorial.",
translated: "Hola y bienvenidos a este tutorial."
},
{
start: 5,
duration: 4,
original: "Today we'll learn about YouTube captions.",
translated: "Hoy aprenderemos sobre los subtítulos de YouTube."
},
{
start: 9,
duration: 6,
original: "Captions are important for accessibility.",
translated: "Los subtítulos son importantes para la accesibilidad."
},
{
start: 15,
duration: 5,
original: "They help people understand the content.",
translated: "Ayudan a las personas a entender el contenido."
},
{
start: 20,
duration: 6,
original: "You can use them for language learning too.",
translated: "También puedes usarlos para aprender idiomas."
}
];
resolve(mockCaptions);
}, 1000);
});
}
// Display captions in the UI
function displayCaptions(captionsData) {
captions = captionsData;
selectedCaptions.clear();
updateSelectedCount();
copySelectedBtn.disabled = true;
if (captionsData.length === 0) {
captionsContainer.innerHTML = '<p class="text-gray-500 text-center py-8">No captions available for this video</p>';
return;
}
let html = '';
captionsData.forEach((caption, index) => {
html += `
<div class="caption-line py-2 px-3 rounded mb-1" data-index="${index}">
<div class="font-medium mb-1">${caption.original}</div>
<div class="text-gray-600 text-sm">${caption.translated}</div>
</div>
`;
});
captionsContainer.innerHTML = html;
// Add click event to caption lines
document.querySelectorAll('.caption-line').forEach(line => {
line.addEventListener('click', function() {
const index = parseInt(this.getAttribute('data-index'));
if (selectedCaptions.has(index)) {
selectedCaptions.delete(index);
this.classList.remove('selected');
} else {
selectedCaptions.add(index);
this.classList.add('selected');
}
updateSelectedCount();
copySelectedBtn.disabled = selectedCaptions.size === 0;
});
});
}
// Update selected count display
function updateSelectedCount() {
const count = selectedCaptions.size;
selectedCount.textContent = `${count} caption${count !== 1 ? 's' : ''} selected`;
}
// Handle language selection change
document.getElementById('language-select').addEventListener('change', function() {
currentLanguage = this.value;
// In a real app, you would fetch translations for the selected language
// For this demo, we're just using mock data
displayCaptions(captions);
});
// Handle format selection change
document.getElementById('format-select').addEventListener('change', function() {
currentFormat = this.value;
});
// Format captions based on selected format
function formatCaptionText(original, translated) {
switch(currentFormat) {
case 'srt':
return `${original}\n${translated}`;
case 'tab':
return `${original}\t${translated}`;
default: // plain
return `${original}\n${translated}`;
}
}
// Copy all captions to clipboard
copyAllBtn.addEventListener('click', function() {
if (captions.length === 0) return;
const allText = captions.map(c => formatCaptionText(c.original, c.translated)).join('\n\n');
navigator.clipboard.writeText(allText).then(() => {
showToast('All captions copied to clipboard!');
});
});
// Copy selected captions to clipboard
copySelectedBtn.addEventListener('click', function() {
if (selectedCaptions.size === 0) return;
const selectedText = Array.from(selectedCaptions)
.sort((a, b) => a - b)
.map(index => formatCaptionText(captions[index].original, captions[index].translated))
.join(currentFormat === 'tab' ? '\n' : '\n\n');
navigator.clipboard.writeText(selectedText).then(() => {
showToast('Selected captions copied to clipboard!');
});
});
// Extract captions when button is clicked
extractBtn.addEventListener('click', function() {
const url = youtubeUrlInput.value.trim();
if (!url) {
showError('Please enter a YouTube URL');
return;
}
if (!isValidYouTubeUrl(url)) {
showError('Please enter a valid YouTube URL');
return;
}
const videoId = getVideoId(url);
if (!videoId) {
showError('Could not extract video ID from URL');
return;
}
hideError();
extractBtn.disabled = true;
extractBtn.innerHTML = '<i class="fas fa-spinner fa-spin"></i> Extracting...';
// Set up video player
videoPlayer.src = `https://www.youtube.com/embed/${videoId}?cc_load_policy=1`;
videoSection.classList.remove('hidden');
// Extract captions
extractCaptions(videoId)
.then(captions => {
displayCaptions(captions);
extractBtn.disabled = false;
extractBtn.innerHTML = '<i class="fas fa-play"></i> Extract Captions';
})
.catch(error => {
console.error('Error extracting captions:', error);
captionsContainer.innerHTML = '<p class="text-red-500 text-center py-8">Error extracting captions. Please try another video.</p>';
extractBtn.disabled = false;
extractBtn.innerHTML = '<i class="fas fa-play"></i> Extract Captions';
});
});
// Allow pressing Enter in the input field
youtubeUrlInput.addEventListener('keypress', function(e) {
if (e.key === 'Enter') {
extractBtn.click();
}
});
});
</script>
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</html> |