Convert Spotify Playlist to JSON

run.js

/*
1. Open the playlist in Spotify Web (logged in if it's a private playlist)
2. Paste this in the browser's Developer Tools

For playlists longer than a handful of tracks, the entire track list won't be loaded in the DOM.
Scrolling down the page will rows from the top and vice versa. Therefore you will need to run this,
scroll down on the page to the last track outputted, run it again, etc until you get them all, then
combine the results together.
*/

(() => {
  function getText(element, selector) {
    return element.querySelector(selector).innerText.trim();
  }

  const rows = Array.from(document.querySelectorAll('[data-testid="playlist-tracklist"] [data-testid="tracklist-row"]'));
  const ret = rows.map(row => ({
    title: getText(row, '.t_yrXoUO3qGsJS4Y6iXX'),
    artist: getText(row, '.rq2VQ5mb9SDAFWbBIUIn'),
  }));
  console.log(ret); // change this to suit your needs
})();