Bosca Ceoil - A free, easy to use tool for creating music.
OnlineSequencer.net - OnlineSequencer.net is an online music sequencer that allows users to create beats and music tracks.
Zynewave Podium - Podium is a modern digital audio workstation (DAW) for Windows.
AudioSauna - AudioSauna is a full-featured audio workstation for making music online.
Renoise - Renoise is a digital audio workstation.
Jummbox - A modified Beepbox that have more stuff then Beepbox. It can be used just like Beepbox. The features of Jummbox is the same of Beepbox's features, but Jummbox have more stuff to offer.