I'm the creator, I had previously used YouTube playlist-length services but those were mostly restricted in nature. For example, some services have a limit of only 500 videos. This tool does not have any limits; you can pass a playlist of size 1 or the maximum limit of Video YouTube allows per playlist.
Video of Product: https://akamhy.me/assets/ypla.webm
Congratulations on launching your product on Product Hunt. Its a huge accomplishment and a testament to the hard work and dedication you have put into creating something truly amazing.
@imjohnkoo It calculates the amount of time it would take to watch a playlist at normal speed (the default video speed) as well as at faster and slower speeds. This is useful when you are planning to study from a playlist or stream a large music playlist. It should be noted that YouTube does not have any functionality to determine the total length of the playlist.
YouTube Playlist Length Analyzer
Twiser
Hummin'
YouTube Playlist Length Analyzer
Hummin'
YouTube Playlist Length Analyzer
Hummin'