1BITDRAGON - 1BITDRAGON is a user-friendly music creation software that allows anyone to make music without having to be an expert or have thousands of dollars of gear.
OnlineSequencer.net - OnlineSequencer.net is an online music sequencer that allows users to create beats and music tracks.
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.
AudioSauna - AudioSauna is a full-featured audio workstation for making music online.
ButtonBass - ButtonBass is an online music development toolkit that lets you play with virtual instruments and effects in a fun and interactive way.
Bosca Ceoil - A free, easy to use tool for creating music.