Beatrice: Rhythm Game Notechart Editor
Generic notechart editor for rhythm games
KaraokeTabs
Karaoke in the browser. Sync lyrics to any video.
Aleatoric11 - Rhythm Lab
Web-based music production tool and rhythm generator
Rhythmiga Chart Editor
A chart editor (somewhat) for Theatrhythm like games.
Metronome
A simple metronome intended for guitarists.
Rhythm Generator
Generate various rhythms by playing with the options on the board.
Otto Editor
Level editor for Otto's Galactic Groove!!
Pocket Chordsmith
Mobile friendly song creator
Monkey Watch
But it's an actual watch
Song Machine
A lightweight procedural chiptune maker