Hydrogen - Hydrogen is an advanced drum machine.
ITM Platform - Cloud-based Project Management Solutions
HTML5 Drum Machine - The HTML 5 Drum Machine is a browser-based drum machine inspired by the classic Roland TR-808.
iO-808 - Rhythm composer modeled after Roland's TR-808 drum machine.
drumbit - A very easy to use drum machine.
DrumGizmo - DrumGizmo is an open source, multichannel, multilayered, cross-platform drum plugin and stand-alone application.