The closest thing to an open-source in-browser JS renderer would be something based on https://github.com/0xfe/vexflow https://github.com/0xfe/vexflow, but a re

The closest thing to an open-source in-browser JS renderer would be something based on https://github.com/0xfe/vexflow https://github.com/0xfe/vexflow, but a reliable converter for MusicXML hasn't been written yet.