iPhone users, seamless integration, and zero stress. Cost: ~$11.99/month (includes YouTube Music).

Most sites (especially YouTube) explicitly forbid downloading content without their permission or a "Download" button provided by the service.

Life is too short for buffering wheels. Curate your entertainment like you curate your wardrobe—invest in staples (downloads), and enjoy the luxury of offline access.

Open your chosen downloader (app or site) and paste the link into the search/input box.