YouTube serves high-resolution video and its audio as two separate streams, which is why most downloaders quietly hand you 720p. Grabline pulls both and merges them, so 4K stays 4K.
How it works
Grabline fetches its download engine into its own app folder on first run. Nothing goes into Windows itself, and uninstalling takes it all with it.
Any YouTube video, or a playlist link if you have Pro.
Every size the video actually has, with real file sizes before you commit.
Video and audio merged losslessly. Nothing re-encoded, nothing lost.
Pricing
Pro is a single payment, not a subscription. It keeps working after your update year ends — you just stop getting new versions until you renew.
Windows 10 and 11
Key arrives by email · 14-day refund, no questions
| Free | Pro | |
|---|---|---|
| Maximum resolution | 1080p | 8K |
| Downloads at once | 1 | 5 |
| Whole playlists | — | Yes |
| MP3 quality | 192 kbps | Best available |
| Subtitles | — | Yes |
| Cookies for restricted videos | — | Yes |
| History kept | 20 | 500 |
Questions
No. You pay once. The year covers new versions — the build you have keeps working for as long as you want to run it.
It is emailed the moment the payment clears. Open Grabline, go to Settings → Licence, paste it in. It works offline afterwards.
Yes, up to three machines you own. Reinstalling or changing your hard drive does not use one up.
1080p covers most of what people need and stays free forever. The paid features — 4K, playlists, batches — are what fund the work of keeping up with YouTube's changes.
No ads, no toolbars, no telemetry. It downloads its engine on first run because that does the actual work, and it lives in its own folder.
YouTube changes things often. Settings → Engine → Update pulls the newest engine, which fixes it almost every time.