Free spotify downloader that you can use for your projects, this code only support for track url and not playlist or etc.

spotify-downloader.js

import { parse as urlParser } from "spotify-uri";
import axios from "axios";

async function spotifydl(url) {
  try {
    if(!url) return { status: false, message: "undefined reading url!" };
    return await new Promise(async(resolve, reject) => {
      const trackId = (urlParser(url)).id;
      if(!trackId) return reject("invalid spotify track url!");
      axios.get(`https://api.spotifydown.com/download/` + trackId, {
        headers: {
          authority: "api.spotifydown.com",
          origin: "https://spotifydown.com",
          referer: "https://spotifydown.com"
        }
      }).then(res => {
        const data = res.data;
        if(!data.success) reject("failed fetching track metadata");
        delete data.metadata.cache
        delete data.metadata.success
        resolve({
          status: true,
          data: {
            ...data.metadata,
            url: data.link
          }
        })
      }).catch(reject);
    })
  } catch (e) {
    return { status: false, message: e };
  }
}

spotifydl("https://open.spotify.com/track/0ZEYRVISCaqz5yamWZWzaA")
  .then(console.log)
  .catch(console.log)
  
/** Response
{
  status: true,
  data: {
    id: '0ZEYRVISCaqz5yamWZWzaA',
    artists: 'Budi Doremi',
    title: 'Melukis Senja',
    album: 'Melukis Senja',
    cover: 'https://i.scdn.co/image/ab67616d0000b27337f883f98514a0852046e2f0',
    isrc: 'IDA642001567',
    releaseDate: '2020-06-24',
    url: 'https://cdn4.meow.gs/api/stream?t=3qQ4b_1pSokc2rPaZuqC8&e=1720892352560&h=EWQSSQczjgx69os1ruAjWz5e1BKpCFxzFwWUwSN_EQ4&s=ngz8l4svE46fPxJTu-8I13sBKSgexq19gngxZcNkskE&i=g3PKEPgSJdrI1En9xJC0xg'
  }
}
 */

Source: https://whatsapp.com/channel/0029VagFeoY9cDDa9ulpwM0T