Quick answer
To convert YouTube to MP4, paste a public watch, youtu.be or Shorts link and choose the video format you want.
To keep a YouTube video offline, start from a correct public URL and compare the available MP4 resolutions before downloading.
Which YouTube URLs work best
Public watch URLs, youtu.be links and Shorts URLs are the easiest to process. Private, removed or heavily restricted videos will not expose a stable download option.
- Watch, youtu.be and Shorts links are supported.
- The video must be public or freely accessible.
- Region restrictions can block every format.
How to choose the right MP4 quality
An HD MP4 keeps more detail but also creates a larger file. On mobile or limited data, a lighter format may be the better option.
- Use HD for the sharpest picture.
- Use SD for a lighter file.
- Use MP3 when you only need the audio track.
Why some YouTube links fail
The most common reasons are privacy settings, regional restrictions or a deleted video. In some cases, the shared URL points to a playlist instead of one specific video.
- Make sure the URL opens a single video.
- Copy the link again from YouTube's share button.