YouTube video downloader
Drop the YouTube link, pick a quality from 144p to 4K, download. Or take the audio on its own. Free, no login, no bullshit.
for personal use · terms
how to download from YouTube
- Copy the YouTube link. Tap Share under the video or Short, then Copy link. Or copy the URL from the address bar. youtu.be short links work too.
- Open fastsaver.io. If the link is on your clipboard it is already in the box. If not, paste it.
- Hit download and pick a tile. A quality grid appears, 144p up to 2160p, each tile with its file size. Next to it sits an audio tile. Tap the one you want.
- Save the file. The file streams through fastsaver to your device. 4K takes longer than 720p, so check the size before you tap.
what you get from YouTube
| Video | an mp4 at the quality you pick, 144p up to 2160p when the source has it. |
|---|---|
| Audio | the soundtrack on its own as an m4a file. Plays in every music app. |
| Shorts | the vertical video as an mp4, through the same quality grid. |
| File sizes | shown on every tile before you download anything. |
| Not included | playlists, live streams, private videos. |
why fastsaver
Paste a YouTube or Shorts link and you get a quality grid, not a guess. Every tile shows its file size before you commit, so 4K never surprises your storage. The audio tile gives you the sound on its own. It is an m4a file, plays in every music app. Full walkthrough: how to download youtube videos.
No login, no app. It works in Safari, Chrome, any browser. Prefer chat? Send the link to @fastsaver_bot. Telegram caps bot uploads, so very large youtube files come back as a link.
YouTube downloader — frequently asked
What resolutions can I download?
Whatever the video offers, as a grid of buttons: 144p, 360p, 720p, 1080p, up to 2160p (4K).
Can I download YouTube as mp3?
You get the audio on its own as an m4a file, not an mp3. It plays in every music app and any converter turns it into mp3.
Do YouTube Shorts work?
Yes. Paste a Shorts link and it works exactly like a normal video, with the same quality grid.
Why is a big download slow?
Files stream through fastsaver’s server to you, and a 4K video can be gigabytes. Pick 1080p if you just want to watch it.
Is this legal?
Downloading for personal use is fine in most places; reposting is not. Read our short legal explainer on the blog.
guides
for developers
the same downloader is a REST API: one GET returns the clean YouTube file as json — fastsaver API. 1,000 free credits on every key, plans from $9/month. the web tool and @fastsaver_bot stay free; personal use only — terms.
last checked September 2026