Exportar tu biblioteca de Steam a CSV o Excel, gratis (con horas jugadas)

// Responsive Muse · Steam Library Exporter · v1.0 · 2026-10-31
// Saves a Steam game library (yours, or a friend's if their game details are public) to CSV or TXT:
// game, hours played, last played, achievements and store link. Handy to back up your list, see
// what you never played or share it. Runs only on a steamcommunity.com profile's Games page. It
// reads the list the page already loaded: it makes no network requests of its own and never reads
// cookies, passwords or tokens.
(async () => {
  const TOOL = 'Exportar biblioteca de Steam';
  const FORMAT = 'csv';        // 'csv' (Excel, Sheets) or 'txt' ("Game - link", one per line)
  const SORT = 'hours';        // 'hours' (most played first), 'name' (A to Z) or 'recent' (last played first)

  if (location.hostname !== 'steamcommunity.com' || !/^\/(id|profiles)\/[^/]+\/games/.test(location.pathname)) {
    alert('Abre primero una página de Juegos, por ejemplo la tuya:\nhttps://steamcommunity.com/my/games/?tab=all');
    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' })[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]]);
  };

  // 1. The whole library (and achievement progress) comes with the page itself
  let games = [];
  const ach = new Map();
  try {
    const cache = JSON.parse(window.SSR.renderContext.queryData).queries;
    games = cache.find(q => q.queryKey[0] === 'OwnedGames')?.state.data || [];
    for (const q of cache) {
      const d = q.queryKey[0] === 'AchievementProgress' && q.state.data;
      if (d?.appid) ach.set(d.appid, d);
    }
  } catch (e) { /* not loaded yet, handled below */ }
  if (!Array.isArray(games) || !games.length) {
    panel.finish('No se han encontrado juegos. Recarga esta página (F5) y vuelve a ejecutar el script. Si sigue vacía, los detalles de juegos del perfil son privados o no tiene juegos.');
    return 0;
  }

  // 2. One row per game
  const day = t => t ? new Date(t * 1000).toISOString().slice(0, 10) : '';
  const hours = m => m ? (m / 60).toFixed(1) : '0';
  const list = games.map(g => {
    const a = ach.get(g.appid);
    return {
      name: g.name || `App ${g.appid}`,
      minutes: g.playtime_forever || 0,
      recent: g.playtime_2weeks || 0,
      last: g.rtime_last_played || 0,
      achievements: a?.total ? `${a.unlocked}/${a.total}` : '',
      percent: a?.total ? Math.round(a.unlocked * 100 / a.total) + '%' : '',
      appid: g.appid,
      url: `https://store.steampowered.com/app/${g.appid}/`,
    };
  });
  const byName = (x, y) => x.name.localeCompare(y.name, undefined, { sensitivity: 'base' });
  list.sort(SORT === 'name' ? byName
    : SORT === 'recent' ? (x, y) => y.last - x.last || byName(x, y)
    : (x, y) => y.minutes - x.minutes || byName(x, y));

  // 3. Build the file and offer it
  const cell = v => '"' + String(v).replace(/"/g, '""') + '"';
  const body = FORMAT === 'txt'
    ? list.map(g => `${g.name} - ${g.url}`).join('\n')
    : ['Juego,Horas jugadas,Horas últimas 2 semanas,Última partida,Logros,Logros %,App ID,URL de la tienda', ...list.map(g =>
        [g.name, hours(g.minutes), hours(g.recent), day(g.last), g.achievements, g.percent, g.appid, g.url].map(cell).join(','))].join('\n');
  const total = Math.round(list.reduce((s, g) => s + g.minutes, 0) / 60);
  const never = list.filter(g => !g.minutes).length;
  const owner = (document.title.split('::')[1] || 'steam').trim();
  deliver(`Listo: ${many(list.length, 'juego')}: ${total} horas jugadas, ${never} sin jugar nunca.`, body,
    `steam-library-${owner.replace(/[\\/:*?"<>|\s]+/g, '_')}.${FORMAT}`);
  return list.length;
})();