Qt for WebAssembly
Qt for WebAssembly makes it possible to build Qt applications as WebAssembly modules in order to target Web browsers.
Qt for WebAssembly is currently in development. A tech preview release is scheduled for release with Qt 5.11.
This Wiki page is also a work in progress, please see the development tracking bug for more information: https://bugreports.qt.io/browse/QTBUG-63917