Bookmarklets

Source Code:

javascript:(function(){
  // Get current URL
  const url = window.location.href;
  
  // Validate it's a YouTube URL
  if (!url.includes('youtube.com') && !url.includes('youtu.be')) {
    alert('Error: This is not a YouTube page');
    return;
  }
  
  // Extract video ID based on URL format
  let videoId = null;
  
  if (url.includes('youtube.com/watch')) {
    // Standard YouTube URL
    const urlParams = new URLSearchParams(window.location.search);
    videoId = urlParams.get('v');
  } else if (url.includes('youtu.be/')) {
    // Shortened youtu.be URL
    videoId = url.split('youtu.be/')[1].split(/[?#]/)[0];
  } else if (url.includes('youtube.com/embed/')) {
    // Embedded player URL
    videoId = url.split('youtube.com/embed/')[1].split(/[?#]/)[0];
  } else if (url.includes('youtube.com/shorts/')) {
    // YouTube Shorts URL
    videoId = url.split('youtube.com/shorts/')[1].split(/[?#]/)[0];
  } else {
    alert('Error: Cannot identify YouTube video on this page');
    return;
  }
  
  // Validate video ID
  if (!videoId) {
    alert('Error: Could not extract the YouTube video ID');
    return;
  }
  
  // Open transcript page in new tab
  window.open('https://www.youtube-transcript.io/videos?id=' + videoId, '_blank');
})();