321YouTube is purportedly a file conversion website for YouTube videos. As of August 2015, the site is accessible, but the search and conversion functions are down.
Users can view videos on YouTube's website and embed them into other websites but cannot save them to their own computers. 321YouTube claims to convert YouTube videos into downloadable mp3 files. Several commenters at Downoruprightnow report being unable to use the site to convert videos since May 2015. 321YouYube provides no explanation for the outage except a note that they are designing a new version of the website. There is some debate over the legality of YouTube-to-mp3 converters, according to International Business Times.