Choose MP4 when you need video and audio
MP4 keeps the picture and sound together in one widely supported file. It is a practical output for offline review, authorized archiving, presentations, and editing workflows that accept MP4.
Resolution is determined by the source
The converter requests an available video rendition, but it cannot add detail that is missing from the original upload. A 480p source does not become true 1080p or 4K after conversion.
How to save an authorized video as MP4
Copy the public YouTube URL, paste it into the tool, select MP4, and start processing. Keep the page open until the download link appears, then save the file using your browser.
When MP3 is the better choice
Use MP3 only when you need the audio track and do not need the visuals. MP4 files are normally larger because they contain both video and audio.
Frequently Asked Questions
No. The output is limited by the renditions available for the source video and by the processing provider.
The converter follows the source dimensions, so a vertical source should remain vertical.
Private, restricted, removed, or otherwise inaccessible videos are not supported.