GridSound is a work-in-progress open-source HTML5 Digital Audio Workstation based on the Web Audio API. The application will stay at least compatible with Chrome and Firefox. Obviously, there are still a lot of work and features to add to become a real DAW, but we have a good lightweight code base for the moment. Currently we are working on the audio generation code with oscillators etc.
The current version is : gridsound.github.io/daw.
Also, the DAW is built with components, and these components are referenced here : github.com/gridsound/gs-ui-components.
For the moment we are only two on the project and you are very welcome to contribute! Hope to see you on GitHub :)
PS: Thanks for our first giver <3