So what’s the difference between this and Ultrastar Deluxe? https://usdx.eu/. Source: over 1 year ago

UltraStar Deluxe is a good and free SingStar clone. You have to provide your own songs, though. Source: over 2 years ago

Https://usdx.eu/ - works, rather old, abandoned. Source: almost 3 years ago

Well, you have https://www.karaoke-forever.com/, which you could probably host and get setup or, if it's not as important for you to have it self-hosted to access everywhere but just "self-hosted" on a local machine, you have https://usdx.eu/, which I believe is the closest to what you will find of Singstar. Source: almost 3 years ago

Edit: and then there are sites that use all sharps, like https://scales-chords.com which I use all the time and it's actually kind of annoying that everything is in sharps since I've recently become more used to flats. But it just makes me wonder why the site owner has everything in sharps. Source: 10 months ago

Scales-chords.com also has a similar chord naming tool, among some other useful tools https://www.scales-chords.com/chord-namer/. Source: over 1 year ago

You should check out scales-chords.com, very good n helpful. Source: about 2 years ago

Scales-chords.com is a great tool for non-players. Source: over 2 years ago

Hmmm... A Dorian b2 or Eb diminished Lydian. Eh, forget the 'hmmm' am not savvy. When in doubt go to scales-chords.com there are resources to play there with scales and chords. Source: almost 3 years ago