Exportar tu lista de Ver más tarde de YouTube a Excel (CSV)

// Responsive Muse · YouTube Playlist Exporter · v1.2 · 2026-11-06
// Exports any playlist you can open (your own, Watch Later, Liked videos, public lists,
// a channel's uploads or its Shorts) to CSV or TXT. Runs only on youtube.com/playlist.
// The script makes no network requests of its own: YouTube loads the rest of the list
// while the script scrolls. It never reads cookies, passwords or tokens.
(async () => {
  const TOOL = 'Exportar lista de reproducción';
  const FORMAT = 'csv';        // 'csv' (Excel, Google Sheets) or 'txt' (one URL per line)

  if (location.hostname !== 'www.youtube.com' || location.pathname !== '/playlist') {
    alert('Abre primero una lista de reproducción, por ejemplo:\nhttps://www.youtube.com/playlist?list=WL');
    return;
  }
  // A small box on the page shows progress and asks before changing anything,
  // so you never need to read or edit the console.
  const many = (n, word) => `${n} ${n === 1 ? word : ({ canal: 'canales', 'canción': 'canciones', 'publicación': 'publicaciones', 'elemento guardado': 'elementos guardados', lugar: 'lugares' })[word] || word + 's'}`;   // 1 vídeo, 2 vídeos
  const panel = (() => {
    const box = document.createElement('div');
    box.style.cssText = 'display:block!important;position:fixed;right:16px;bottom:16px;z-index:2147483647;width:340px;max-width:calc(100vw - 32px);' +
      'background:#111318;color:#e6e8ee;font:14px/1.5 system-ui,sans-serif;border-radius:12px;padding:16px;' +
      'box-shadow:0 8px 30px rgba(0,0,0,.4);text-align:left';
    const head = document.createElement('strong');
    head.textContent = TOOL;
    const msg = document.createElement('p');
    msg.style.cssText = 'margin:8px 0 12px;white-space:pre-line';
    const row = document.createElement('div');
    row.style.cssText = 'display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end';
    box.append(head, msg, row);
    document.body.append(box);
    const button = (label, primary, onClick) => {
      const b = document.createElement('button');
      b.textContent = label;
      b.style.cssText = 'font:600 14px system-ui,sans-serif;padding:8px 14px;border-radius:8px;cursor:pointer;' +
        (primary ? 'background:#0f766e;color:#fff;border:1px solid #0f766e' : 'background:none;color:#e6e8ee;border:1px solid #3a3f4b');
      b.onclick = onClick;
      row.append(b);
    };
    return {
      text(t) { msg.textContent = t; },
      ask(t, yes) {
        msg.textContent = t;
        row.replaceChildren();
        return new Promise(r => {
          button('Cancelar', false, () => { row.replaceChildren(); r(false); });
          button(yes, true, () => { row.replaceChildren(); r(true); });
        });
      },
      stoppable(onStop) { row.replaceChildren(); button('Parar', false, onStop); },
      actions(t, list) {
        msg.textContent = t;
        row.replaceChildren();
        list.forEach(([label, primary, run]) => button(label, primary, run));
      },
      finish(t) { this.actions(t, [['Cerrar', true, () => box.remove()]]); },
      close() { box.remove(); },
    };
  })();
  // Offer the result as a downloaded file or as clipboard text (a real click, so it always works)
  const deliver = (summary, body, file) => {
    const save = () => {
      const a = document.createElement('a');
      a.href = URL.createObjectURL(new Blob([/\.csv$/.test(file) ? '\ufeff' + body : body], { type: 'text/plain;charset=utf-8' }));
      a.download = file;
      a.click();
      setTimeout(() => URL.revokeObjectURL(a.href), 5000);
      panel.text(`${summary}\nGuardado como ${file} (mira tu carpeta de Descargas).`);
    };
    const copy = () => navigator.clipboard.writeText(body)
      .then(() => panel.text(`${summary}\nCopiado. Pégalo en una hoja de cálculo o en una nota.`))
      .catch(() => panel.text(`${summary}\nEl navegador ha bloqueado el portapapeles: usa Descargar.`));
    panel.actions(summary, [['Cerrar', false, () => panel.close()], ['Copiar', false, copy], ['Descargar', true, save]]);
  };
  const sleep = ms => new Promise(r => setTimeout(r, ms));
  // Playlist rows: new layout (yt-lockup-view-model), old layout (ytd-playlist-video-renderer)
  // and the Shorts grid of a channel's Shorts list (ytm-shorts-lockup-view-model, links to /shorts/ID)
  const rows = () => [...document.querySelectorAll('yt-lockup-view-model, ytd-playlist-video-renderer, ytm-shorts-lockup-view-model')]
    .filter(el => el.querySelector('a[href*="/watch?v="][href*="index="], a[href*="/shorts/"]'));
  // Channel lists (UU… uploads, UUSH… Shorts) don't show the channel on every row: use the list owner
  const owner = /^UU/.test(new URLSearchParams(location.search).get('list') || '')
    ? ([...document.querySelectorAll('a[href^="/@"]')]
        .find(a => a.textContent.trim() && !a.closest('yt-lockup-view-model, ytd-playlist-video-renderer, ytm-shorts-lockup-view-model, #guide, ytd-guide-renderer'))
        ?.textContent.trim() || '')
    : '';

  // 1. Scroll to the end until no new videos appear three times in a row
  let last = -1, idle = 0;
  while (idle < 3) {
    window.scrollTo(0, document.documentElement.scrollHeight);
    await sleep(1200);
    const n = rows().length;
    idle = n === last ? idle + 1 : 0;
    last = n;
    panel.text(`Cargando la lista… ${n} vídeos`);
  }

  // 2. Read every row
  const seen = new Set();
  const videos = [];
  for (const el of rows()) {
    const short = el.querySelector('a[href*="/shorts/"]');
    const link = new URL((short || el.querySelector('a[href*="/watch?v="]')).href);
    const id = short ? link.pathname.split('/')[2] : link.searchParams.get('v');
    const index = short ? String(videos.length + 1) : link.searchParams.get('index') || '';
    if (!id || seen.has(id + index)) continue;
    seen.add(id + index);
    const text = sel => (el.querySelector(sel)?.textContent || '').trim();
    videos.push({
      index,
      title: short ? (el.querySelector('a[title]')?.getAttribute('title') || short.textContent.trim())
                   : el.querySelector('h3')?.getAttribute('title') || text('#video-title'),
      channel: text('a[href^="/@"], a[href^="/channel/"], ytd-channel-name a') || owner,
      duration: short ? 'Short' : text('.ytBadgeShapeText, ytd-thumbnail-overlay-time-status-renderer #text'),
      url: short ? 'https://www.youtube.com/shorts/' + id : 'https://www.youtube.com/watch?v=' + id,
    });
  }
  if (!videos.length) {
    panel.finish('No se han encontrado vídeos. Puede que YouTube haya cambiado su diseño: avísanos en responsive-muse.com.');
    return 0;
  }

  // 3. Build the file and offer it
  const cell = v => '"' + String(v).replace(/"/g, '""') + '"';
  const body = FORMAT === 'txt'
    ? videos.map(v => v.url).join('\n')
    : ['Posición,Título,Canal,Duración,URL', ...videos.map(v =>
        [v.index, v.title, v.channel, v.duration, v.url].map(cell).join(','))].join('\n');
  const name = (document.title.replace(/ - YouTube$/, '') || 'playlist').replace(/[\\/:*?"<>|]+/g, '_');
  deliver(`Listo: ${many(videos.length, 'vídeo')}.`, body, `${name}.${FORMAT}`);
  return videos.length;
})();