HTML5 Drum Machine - The HTML 5 Drum Machine is a browser-based drum machine inspired by the classic Roland TR-808.
Metronomus - Powerful and beautiful online metronome
sonogrid - A musical toy for serious play.
TempoPerfect Metronome - TempoPerfect is a free software metronome.
Drummy.io - Loopealo's dummy drums is a very simple app that allows you to create drum patterns very quickly and is very intuitive.
Mobile Metronome - Mobile Metronome is a pretty complete metronome for any usage, from the simplest beat count...