YouTube to MP3/MP4 Download Website

I need a website where users can paste a YouTube URL to download videos in MP3 or MP4 format. The site should also include a search box to find YouTube videos and allow users to click and download them easily.

Please review the following websites and contact me if you can help me achieve this goal:

? https://emp3juice.la/
? https://y2mate.nu/en-phaD/