About the ssyoutube downloader alternative
SSYouTube is the widely known 'insert ss into the URL' trick associated with SaveFrom: you change youtube.com to ssyoutube.com in the address bar and land on a download page. It is memorable, which is why the phrase gets searched so heavily. This site is not affiliated with it in any way — this page exists because the underlying job is the same one described here, and playlists are the part that shortcut handles least well.
The shortcut is built around one video. Applying it to a playlist typically gives you the currently playing video rather than the list, so archiving a course or an album means repeating the trick for every entry. That is exactly the work this site removes: one paste, the whole list on screen, then choose per entry.
If you are comparing options, the checklist is short and it is the same regardless of brand. Does it read playlists, or only single videos? Does it offer audio-only output at a sensible bitrate? Does it demand an install, an extension, or a Google sign-in? How aggressive are the pop-unders? A tool that opens six tabs per click is not saving you time.
Be careful with lookalike domains. Popular shortcut names attract clones, and the clones are where the malicious installers and fake 'update your player' prompts live. Genuine web downloaders never need an executable, never need your YouTube password, and never need antivirus disabled.
The honest summary: if you download one video occasionally, the URL shortcut is convenient and there is no reason to change. If you routinely take whole playlists — lecture series, albums, podcast archives — a list-first tool is the difference between one paste and fifty.