How it works
From a YouTube link to a saved file
- Copy the video address
Phone: the Share button under the video gives you Copy link. Desktop: grab whatever sits in the browser's address field.
- Paste it, set MP3 or MP4
A card with the thumbnail and title confirms the video. Flip the switch to the format you want and press Convert.
- Tap Download
When the bar fills, the green button hands the file over: Downloads on Android, Files on an iPhone.
What you get from YT1s
| Audio file | MP3 at regular quality, about 128–160 kbps |
|---|---|
| Video file | MP4 with sound, 720p at best; smaller uploads stay at their own size |
| Longest video | About 30 minutes for MP4 and about two hours for MP3 |
| Accepted links | Anything copied from YouTube's Share button or address bar: regular videos, Shorts, YouTube Music tracks and replays of streams that are over |
| Not possible | Running live streams, private or age-gated videos, full playlists, and links from TikTok, Facebook or Instagram |
| Price | Free, with no account, app or extension |
Need just the music? The YT1s MP3 download guide covers saving songs on Android and iPhone and keeping them in your music player.
Search a song instead of pasting a link
Type an artist and title, such as a chorus line you remember, and press Search. Suggestions appear while you type. Every hit shows its length and channel and has its own MP3 and MP4 buttons, plus Preview to hear the start of the clip inside this page before converting it.
Why there is a Download button
YT1s does not push the file at you the moment the conversion ends. It waits until you tap Download, so you decide when the data is spent, and a download never starts while you are still reading. The finished link stays valid for about 25 minutes; after that, press MP3 or MP4 again and a fresh copy is made.
MP3 or MP4: which one fits?
MP3 keeps only the sound and is roughly a tenth of the size: about 1 MB per minute, so a four-minute song is close to 4 MB. Choose it for playlists, podcasts and anything you only listen to.
MP4 keeps the picture. At 720p it costs about 5–10 MB per minute, depending on how busy the image is. Choose it for dance tutorials, recipes, clips you want to show someone, or a video to edit.
When a conversion stops
The card always says why, with a short code. A first hiccup is retried by itself, so most cards you see stopped have a real reason:
- Over the length limit. An MP4 above about 30 minutes is refused, and the card offers the MP3 version straight away.
- Blocked by region. Some videos are locked to certain countries, including the one the converter runs in.
- Live or age-restricted. A broadcast that is still running, or a video that needs a signed-in YouTube account, cannot be read.
- Lost connection. If your network drops halfway, a Try again button restarts the same file.
Questions people ask about YT1s
Does YT1s cost anything?
No. Converting and downloading are free, and you never have to sign up.
Will it run on my phone?
Yes. Chrome, Samsung Internet, Firefox and Safari all work, and nothing needs installing because the converter is this page.
Is this the original YT1s website?
No. Several converters use the YT1s name. This one is operated on almontsystem.com.pl and is not connected to the others or to YouTube.
Is there a YT1s app or APK?
There is no app from us. Files named "YT1s APK" from download sites are not ours, and installing apps from outside the Play Store is risky.
Can I get 1080p, 4K or 320 kbps?
No. Video files top out at 720p and audio at standard MP3 quality. We prefer to state that plainly rather than put larger numbers on the same file.
Which videos may I save?
Your own uploads, videos the owner offers for download, and openly licensed works. Owners who want a video taken out of the converter can use the copyright page.
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