zachcp · June 6, 2026 15:40
diff --git a/substack_to_ompl.js b/substack_to_ompl.js
 // Substack → OPML exporter
 // Usage: navigate to https://substack.com/@zachcp/reads, scroll to bottom to
 //        load all subscriptions, then paste into browser console.
 // Downloads substack_subscriptions.opml to your Downloads folder.

 (async () => {
  // Collect all unique publication URLs from the page.
  // Each subscription card links to the publication root (e.g. https://foo.substack.com
  // or https://foo.com for custom domains).
  const anchors = [...document.querySelectorAll("a[href]")];

  const seen = new Set();
  const feeds = [];

  for (const a of anchors) {
    const href = a.href;

    // Keep only substack subdomain or plausible custom-domain publication links.
    // Filter out nav, profile, settings, and archive links.
    if (
      !href ||
      href.includes("/p/") ||        // individual posts
      href.includes("/profile/") ||
      href.includes("/settings") ||
      href.includes("/about") ||
      href.includes("substack.com/@") || // profile pages
      href.includes("substack.com/s/") ||
      href.endsWith("/reads") ||
      href.endsWith("/notes") ||
      seen.has(href)
    ) continue;

    // Accept *.substack.com roots or any URL that is a direct child of its host
    // (i.e. the card link to the publication homepage)
    const url = new URL(href);
    if (url.pathname !== "/" && url.pathname !== "") continue;

    seen.add(href);

    // Grab the nearest text as title — look for a heading inside the card
    const card = a.closest("div, article, li") ?? a;
    const heading = card.querySelector("h1, h2, h3, h4, strong, [class*='title'], [class*='name']");
    const title = (heading?.textContent ?? a.textContent ?? url.hostname)
      .trim()
      .replace(/\s*by(?=\s|\p{Lu}|\d).*/iu, "")   // strip "by AuthorName..." (with or without space)
      .replace(/Subscribed?$/i, "") // strip trailing "Subscribe" / "Subscribed"
      .trim()
      .replace(/&/g, "&amp;")
      .replace(/"/g, "&quot;")
      .replace(/</g, "&lt;")
      .replace(/>/g, "&gt;");

    const base = href.replace(/\/$/, "");
    feeds.push({ title: title || url.hostname, feedUrl: `${base}/feed`, htmlUrl: base });
  }

  if (!feeds.length) {
    console.error("No feeds found. Make sure you're on https://substack.com/@zachcp/reads and have scrolled to load all subscriptions.");
    return;
  }

  const outlines = feeds.map(
    ({ title, feedUrl, htmlUrl }) =>
      `      <outline type="rss" text="${title}" title="${title}" xmlUrl="${feedUrl}" htmlUrl="${htmlUrl}"/>`
  );

  const opml = `<?xml version="1.0" encoding="UTF-8"?>
 <opml version="1.0">
  <head>
    <title>Substack Subscriptions</title>
    <dateCreated>${new Date().toUTCString()}</dateCreated>
  </head>
  <body>
    <outline text="Substack" title="Substack">
 ${outlines.join("\n")}
    </outline>
  </body>
 </opml>`;

  const blob = new Blob([opml], { type: "text/x-opml" });
  const url = URL.createObjectURL(blob);
  const a = document.createElement("a");
  a.href = url;
  a.download = "substack_subscriptions.opml";
  a.click();
  URL.revokeObjectURL(url);

  console.log(`Downloaded OPML with ${feeds.length} feeds.`);
  console.table(feeds);
 })();
	// Substack → OPML exporter
	// Usage: navigate to https://substack.com/@zachcp/reads, scroll to bottom to
	// load all subscriptions, then paste into browser console.
	// Downloads substack_subscriptions.opml to your Downloads folder.

	(async () => {
	// Collect all unique publication URLs from the page.
	// Each subscription card links to the publication root (e.g. https://foo.substack.com
	// or https://foo.com for custom domains).
	const anchors = [...document.querySelectorAll("a[href]")];

	const seen = new Set();
	const feeds = [];

	for (const a of anchors) {
	const href = a.href;

	// Keep only substack subdomain or plausible custom-domain publication links.
	// Filter out nav, profile, settings, and archive links.
	if (
	!href \|\|
	href.includes("/p/") \|\| // individual posts
	href.includes("/profile/") \|\|
	href.includes("/settings") \|\|
	href.includes("/about") \|\|
	href.includes("substack.com/@") \|\| // profile pages
	href.includes("substack.com/s/") \|\|
	href.endsWith("/reads") \|\|
	href.endsWith("/notes") \|\|
	seen.has(href)
	) continue;

	// Accept *.substack.com roots or any URL that is a direct child of its host
	// (i.e. the card link to the publication homepage)
	const url = new URL(href);
	if (url.pathname !== "/" && url.pathname !== "") continue;

	seen.add(href);

	// Grab the nearest text as title — look for a heading inside the card
	const card = a.closest("div, article, li") ?? a;
	const heading = card.querySelector("h1, h2, h3, h4, strong, [class='title'], [class='name']");
	const title = (heading?.textContent ?? a.textContent ?? url.hostname)
	.trim()
	.replace(/\sby(?=\s\|\p{Lu}\|\d)./iu, "") // strip "by AuthorName..." (with or without space)
	.replace(/Subscribed?$/i, "") // strip trailing "Subscribe" / "Subscribed"
	.trim()
	.replace(/&/g, "&")
	.replace(/"/g, """)
	.replace(/</g, "<")
	.replace(/>/g, ">");

	const base = href.replace(/\/$/, "");
	feeds.push({ title: title \|\| url.hostname, feedUrl: `${base}/feed`, htmlUrl: base });
	}

	if (!feeds.length) {
	console.error("No feeds found. Make sure you're on https://substack.com/@zachcp/reads and have scrolled to load all subscriptions.");
	return;
	}

	const outlines = feeds.map(
	({ title, feedUrl, htmlUrl }) =>
	` <outline type="rss" text="${title}" title="${title}" xmlUrl="${feedUrl}" htmlUrl="${htmlUrl}"/>`
	);

	const opml = `<?xml version="1.0" encoding="UTF-8"?>
	<opml version="1.0">
	<head>
	<title>Substack Subscriptions</title>
	<dateCreated>${new Date().toUTCString()}</dateCreated>
	</head>
	<body>
	<outline text="Substack" title="Substack">
	${outlines.join("\n")}
	</outline>
	</body>
	</opml>`;

	const blob = new Blob([opml], { type: "text/x-opml" });
	const url = URL.createObjectURL(blob);
	const a = document.createElement("a");
	a.href = url;
	a.download = "substack_subscriptions.opml";
	a.click();
	URL.revokeObjectURL(url);

	console.log(`Downloaded OPML with ${feeds.length} feeds.`);
	console.table(feeds);
	})();
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