SONCE (acronym for Simple ONline Circuit Editor) is Meteor application which allows you to draw a circuit scheme.
SONCE can draw circuit graph with graphviz (viz.js lib).
With own hosting (we have prepared Docker images to deploy) you can desing circuit colaboratively, export SVG, export netlist, embed svg or netlist, share circuit, use it as montor-student.
SONCE is under heavy development and the amount of functionality will grow in the future. Contributions are welcome.