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Collapse sidebar sections

Collapses every expanded section and page in the sidebar for a concise, tidy navigation view.

Code to copy

(function () {
  try {
    var n = 0;
    document.querySelectorAll('.notion-sidebar [role="button"][aria-expanded="true"]').forEach(function (btn) {
      btn.click();
      n++;
    });
    if (!n) alert('Nothing to collapse in the sidebar.');
  } catch (e) { alert('Could not collapse sidebar: ' + e.message); }
})();

How to use this example

1. Copy the code with the button above.
2. Install JustZix (2 minutes) and open the extension on the target page.
3. Add a new rule matching that page.
4. Paste the code into the rule's JavaScript panel and save — it runs on every page visit.