GoatTracker - This is a crossplatform C64 music editor.
Color Hunt - Curated collection of beautiful colors, updated daily
OnlineSequencer.net - OnlineSequencer.net is an online music sequencer that allows users to create beats and music tracks.
Material Palette - Generate and export your Material Design color palette
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.
Coolors.co - The super fast color schemes generator! Create, save and share perfect palettes in seconds!