Free YouTube to MP4 Converter
YT1s downloads YouTube videos as MP4 files you can save and watch without an internet connection. Paste the video's URL into the search box, select a resolution, and the file downloads directly to your device.
This converter runs in your browser, so there's no software to install and no account needed. It works the same way on a desktop computer, tablet, or phone, and supports all major browsers including Chrome, Firefox, Safari, and Edge.
MP4 downloads are available in resolutions from 144p up through 4K (2160p), depending on what's available for the source video on YouTube. If you need a different format, the same link also converts to AVI, WEBM, MKV, M4A, or 3GP.
Features of YT1s YouTube to MP4
Multiple Resolution Options
Download in 144p, 360p, 480p, 720p, 1080p, 1440p (2K), or 2160p (4K), depending on the source video's available quality.
Original Video Quality
Files are converted without extra compression, so quality matches what's available directly from YouTube.
No Software Needed
The converter works entirely through your browser - there's no app or extension to install.
Free With No Limits
Convert as many videos as you want at no cost, with no daily download cap.
Works on Any Device
Compatible with Windows, Mac, Linux, Android, and iOS, across all major browsers.
Save to Cloud Storage
Send your converted MP4 file directly to Google Drive or Dropbox instead of downloading it locally.
Supported Video Formats
- MP4
- MP3
- 3GP
- M4A
- WEBM
YT1s converts to MP4, AVI, WebM, MKV, M4A, and 3GP, with resolutions available up to 4K/2160p.
Convert to MP4 NowHow to Download YouTube Videos as MP4 - 3 Steps
- 1
Copy the video's URL and paste it into the search box above.
- 2
Select a quality from 144p up to 4K, depending on what's available for that video.
- 3
Click convert and the video file downloads to your device within a few seconds.
FAQ - YouTube to MP4 Converter
What is YouTube to MP4 conversion?
It's the process of saving a YouTube video as an MP4 file on your device, so you can watch it later without needing an internet connection.
Is downloading YouTube videos as MP4 free?
Yes, YT1s doesn't charge for MP4 conversions and doesn't limit how many videos you can download.
What resolutions can I download?
Depending on the source video, you can choose 144p, 240p, 360p, 480p, 720p, 1080p, 1440p (2K), or 2160p (4K).
Does this work on iPhone and Android?
Yes, the converter is browser-based and works the same on mobile as it does on desktop.
Can I download videos in 4K?
Yes, as long as the original YouTube video was uploaded in 4K.
Do I need to install any software?
No. Everything runs in your browser - there's nothing to download besides the MP4 file itself.
Is there a limit on how many videos I can convert?
No, there's no daily limit or restriction on the number of conversions.
Is it safe to use this converter?
Yes. YT1s doesn't require personal information and doesn't store your files after you've downloaded them.
Where do downloaded MP4 files get saved?
They save to your browser's default download location, typically a Downloads folder.
Can I convert a video from a playlist?
Yes, copy the URL of the specific video you want rather than the playlist link.