Button does not work if used with "sandbox"
<iframe sandbox="allow-scripts allow-same-origin"...
+ It's an API that helps developers add YouTube download buttons (MP3 or MP4) in a simple, secure and free way.
+ Download button is integrated through the Iframe, which means it will not affect the speed of the website and users will never have to leave your website.
Fast and optimal speed!
Works on all Youtube videos (except: private videos, blocked worldwide)
Bitrate: MP3(192Kbps), MP4(720p)
Videos are longer than 2 hours
Possible ADS appear (Safe and non-offensive)