YouTube Image Frames is bookmarklet that extracts all the storyboard images of any YouTube video.
/* YouTube Storyboard Frames ------------------------- Written by Amit Agarwal (amit @labnol.org) See video demo at http://youtu.be/Y6yfGGxXyHw */ // Extract the Storyboard URL from the HTML Source a = yt.playerConfig.args.storyboard_spec; // If the Storyboard parameter is missing, no thumbnails would be generated if (!a) { alert("Sorry we had trouble creating a storyboard for this YouTube video."); exit(); } // Parse the Storyboard URL to get the base and unique ID of thumbnail images b = a.split("|"); base = b[0].split("$")[0] + "2/M"; c = b[3].split("#"); sigh = c[c.length - 1]; // Get the length of the YouTube video // If the video is longer than 20 minutes, the storyboard has more image frames t = yt.playerConfig.args.length_seconds; n = (t < 60 * 20) ? 5 : t / (60 * 4); // Queue all the thumbnail images var imgs = ""; for (i = 0; i < n; i++) { imgs += "
"; } // Extract the YouTube video title var title = yt.playerConfig.args.title; msg = "" + "TITLE
IMAGES"; msg = msg.replace("TITLE", title); msg = msg.replace("IMAGES", imgs); // Put everything in an HTML page and open it in a new window var labnol = window.open(); labnol.document.open(); labnol.document.write(msg); labnol.document.close(); // When you click the bookmarklet, all the // available storyboard frames will open in a new window